Answer:
Domain: (-∞,∞)
Range: (-∞,∞)
**All real numbers, ℝ is an alternative to (-∞,∞)
x-intercept: -3
y-intercept: 5
The author of Passage 1 mentions "monsters,"
"humanoids," and "creatures" (lines 2-4)
primarily to
(A) question the literary value of science fiction
(B) contrast fictional notions with a scientific
perspective
(C) offer examples of the human fear of the unknown
(D) criticize science fiction for being unduly alarmist
(E) suggest that scientific research has been influenced
by science fiction
The correct option is (B) to contrast fictional notions with a scientific perspective.
Who is the author?An author, also known as a writer or poet, is the creator or originator of any written work, such as a book or play. An author, in a broader sense, is "the person who originated or gave existence to anything," and his or her authorship determines responsibility for what was created.The person who created the work, or the author, is usually the first owner of the copyright. If the work was created by more than one person, joint authorship can be established if certain criteria are met. There is a requirement for little flexibility regarding what constitutes authorship in the copyright laws of various jurisdictions.To find the correct option:
The author of passage 1 begins by stating that science fiction films have conditioned us to think of monsters, humanoids, and other creatures when we think of extraterrestrial beings. The author of passage 1 begins in this manner to present a contrast to the scientific views and opinions discussed in the rest of the passage. The only option that fits the context of the passage is B.Therefore, the correct option is (B) to contrast fictional notions with a scientific perspective.
Know more about an author here:
https://brainly.com/question/17506968
#SPJ4
Consider the system of equations shown below.
y=-5x+1
y=-5x+10
When graphed, the system consists of two lines that will never meet, no matter how far they are extended. Why are
the lines parallel?
O The linear equations have the same slope and y-intercept.
O The linear equations have different slopes and y-intercepts.
O The linear equations have the same slope but different y-intercepts.
O The linear equations have different slopes but the same y-intercept
The given system of equations have the same slope and different y intercepts. The correct option is (C).
Here, we have
to write the equation of a straight line in slope-intercept form:
A straight line can be written in the slope-intercept form as, y = mx + c.
In order to obtain the slope, the ratio of the difference of the coordinates are taken and c is the y-intercept which can be found by substituting x = 0 in the equation.
The given system of equations is as below,
y = -5x + 1 (1)
y = -5x + 10 (2)
Compare these equation with the general form y = mx + c to obtain,
For equation (1),
m = -5 and c = 1
And, for equation (2),
m = -5 and c = 10
Since two linear equations having the same slope represents two parallel lines, the given system of equations represent the parallel lines.
Hence, the linear equations are do not intersect on graph due to the same slope but different y intercepts.
To know more about straight line equation click on,
brainly.com/question/21627259
#SPJ1
Raoul estimated the difference of 97.23 and 8.3 by rounding each number to the nearest whole. what was raoul's estimate, and what is the actual difference of the numbers? enter your answers in the boxes. raoul estimated the difference to be . the actual difference is . skip to navigation
The actual difference is 88.93
What is basic algebra ?Algebra, a branch of mathematics, facilitates the representation of situations or issues as mathematical expressions. Mathematical operations like addition, subtraction, multiplication, and division are combined with variables like x, y, and z to produce a meaningful mathematical expression. All branches of mathematics, such as trigonometry, calculus, and coordinate geometry, employ algebra.
Given that :Raoul estimated the difference of 97.23 and 8.3
Raoul estimated the difference to be: 89
97.23 --> 97
8.3 --> 8
97-8= 89
The actual difference is: 88.93
97.23-8.3 = 88.93
To lean more about basic algebra visits:
brainly.com/question/15167098
#SPJ4
swimming pool on a certain hot summers day 553 people use the public swimming pool. The daily prices are $1.75 for children and $2.25 for adults. The receipts for admission totaled $1085.25. How many children and how many adult swim at the public pool that day?
The number of children and adults using the swimming pool is x=318, and y=235 respectively.
Given that,
Swimming pool on a certain hot summer day 553 people use the public swimming pool. The daily prices are $1.75 for children and $2.25 for adults. The receipts for admission totaled $1085.25.
Here,
let the number of children be x and the number of adults be y,
According to the conditions,
x + y = 553, - - - - - - (1)
1.75x + 2.25y = 1085.25 - -- - - - - -(2)
Solving the above equations by substitution of x from 1 in equation 2.
1.75[y - 553] + 2.25y = 1085.25
x = 318
Now,
x = 553 - 318
x = 235
Thus, the number of children and adults using the swimming pool is x=318, and y=235 respectively.
Learn more about simultaneous equations here:
https://brainly.com/question/16763389
#SPJ1
james took a survey to show that baskitball is the favorite sport for 18 out of 25 students which percent is the closet to the probility that a person favorite sport will not be baskitball
The closest to the probability that a person's favorite sport is 28%.
What is probability?Probability of an event happening is the ratio of the number of required outcome to that of the total number of possible outcomes. while the probability of the event not happening is one minus the event happening.
From the question, the number of required outcome is 18 and the number of possible outcomes is 25.
So the probability of the event that a person's favorite sport is not basketball = 1 - (18/25)
probability of the event that a person's favorite sport is not basketball = (25 - 18)/25 [simply to a single fraction]
probability of the event that a person's favorite sport is not basketball = 7/25
probability of the event that a person's favorite sport is not basketball = 28/100 [convert to percentage]
probability of the event that a person's favorite sport is not basketball = 38%
Therefore, the probability that a person's favorite sport will not be baskitballbis 38%.
Know more about probability here: https://brainly.com/question/25870256
#SPJ1
The flow of energy in an ecosystem: A) decreases by 90% at each trophic level. B) is a discrete amount transferred without change. C) transfers from plants to carnivores to herbivores. D) is wasted by the decomposers. E) involves all of these.
The flow of energy in an ecosystem involves all of the following: A) It decreases by 90% at each trophic level. B) It is a discrete amount transferred without change. C) It transfers from plants to carnivores to herbivores. D) It is wasted by the decomposers. Therefore, the correct answer is E) involves all of these.
In an ecosystem, energy is transferred through different trophic levels, starting with producers (usually plants) that convert sunlight into chemical energy through photosynthesis. As energy moves up the food chain, from herbivores to carnivores, each trophic level receives only about 10% of the energy from the level below it. This decrease occurs due to inefficiencies in energy transfer, metabolic processes, and heat loss, resulting in a 90% reduction in available energy at each trophic level.
Energy transfer within an ecosystem occurs through discrete amounts. When one organism consumes another, it gains the energy stored in the consumed organism's tissues. However, not all of the energy obtained by an organism is efficiently used or stored. Some energy is lost as heat during metabolic processes or used for activities such as movement, reproduction, or growth. Therefore, energy transfer is not a continuous flow but rather a discrete transfer from one organism to another.
In terms of the direction of energy flow, energy initially enters the ecosystem through photosynthesis performed by plants or other autotrophs. These primary producers convert solar energy into chemical energy stored in organic compounds. Herbivores, such as animals that feed on plants, obtain energy by consuming these producers. Carnivores, in turn, consume herbivores, transferring energy further along the food chain. Therefore, energy flows from plants to herbivores and then to carnivores, indicating the transfer of energy from one trophic level to another.
Decomposers, such as bacteria and fungi, play a crucial role in the ecosystem by breaking down organic matter and returning nutrients to the environment. While decomposers facilitate the recycling of nutrients, they also release energy in the form of heat during the decomposition process. This energy is considered wasted in terms of its availability for further use by other organisms.
In summary, the flow of energy in an ecosystem involves multiple factors. It decreases by 90% at each trophic level, transfers through discrete amounts, moves from plants to herbivores to carnivores, and includes the involvement of decomposers. Hence, the correct answer is E) involves all of these.
Learn more about discrete:
brainly.com/question/30565766
#SPJ11
05. Divided by 26.75
Answer:
53.5
Step-by-step explanation:
I think this is what you're looking for
Answer:
0.18691588785
If you meant 26.75÷5, it would be 5.35.
The negation of the product of five times a number divided by two is ten?
The algebraic expression that can be represented by the statement is -5x/2 = 10
How to make a algebraic expression that can be represented by the statement?From the question, we have the following statement that can be used in our computation:
The negation of the product of five times a number divided by two is ten
Represent the variable with y
So, we have the following representation
The negation of the product of five times x divided by two is ten
Express the product as an actual product
So, we have the following representation
The negation of 5x divided by two is ten
Express the quotient as an actual quotient
So, we have the following representation
The negation of the 5x/2 is ten
Lastly, we have
-5x/2 = 10
Hence, the expression is -5x/2 = 10
Read more about word problems at
brainly.com/question/21405634
#SPJ1
A ball is kicked horizontally at 23.8 m/s from the top of a 138.3 meter cliff. How far from the base of the cliff will the ball land on the ground?
Answer:
24.5 m/s
Because this acceleration is attributable to gravity, G into T, it turns out to be zero plus 9.8 into 2.5, which is 24.5 m/s.
Step-by-step explanation:
Hope this helps
A regular polygon is shown. 12 sided regular polygon Determine the measure of one of its angles.
The measure of one of its angle is 150°
A Polygon is a two-dimensional closed figure made up of line segments (not curves). Polygon is a combination of two words, poly (which means many) and gon (which means shape) (means sides). To create a closed figure, at least three line segments must be connected end to end.
Given that
12 sided regular polygon
We can use the following formula to calculate the total number of degrees in any shape:
(n−2)⋅180
[Where n = number of sides]
(12−2)⋅180
(10)⋅180
=1800
So a 12-sided polygon has 1800 degrees. To calculate the measure of one angle, divide the total number of degrees (1800) by the number of sides, n.
(1800/12) = 150°
Therefore the measure of one of its angle is 150°
To learn more about polygons visit
https://brainly.com/question/10441863
#SPJ1
Write
an expression that can be used to find 4×275 using mental math and properties of the numbers
After solving the expression, the value obtained will be equal to 1,100.
What is an expression?
Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both.
Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.
As per the given expression in the question,
4 × 275
The value obtained after multiplication will be,
= 1,100.
To know more about expression:
https://brainly.com/question/14083225
#SPJ1
Construction Industry-All Employees (Thousands), 2000-2009
A line graph titled construction industry, all employees (thousands), 2000 to 2009, where the x-axis shows years and the y-axis shows all employees, in thousands. Line starts at 6,750 on January 2000, increases to 6,850 on March 2001, decreases to 6,650 on March 2003, increases to 7,700 on March 2006, stays at 7,700 on January 2007, then decreases to 6,700 on January 2009 and continues to decrease.
Construction Industry - Average Hourly Earnings (Dollars), 2000-2009
A line graph titled construction industry, average hourly earnings (dollars), 2000 to 2009, where the x-axis shows years and the y-axis shows average hourly earnings of production workers. Line starts at 17.2 on January 2000, slowly increases to 19.7 on January 2006, then increases more quickly to 20.5 on January 2007 and 22.4 on January 2009.
Based on trends displayed in the graphs above, which answer choice represents a likely situation for 2010?
a.
There will be more than 6.5 million construction employees in 2010, and those employees will have average hourly earnings of $24.00.
b.
There will be over 6 million construction employees in 2010, and the average hourly earnings will be less than twenty dollars.
c.
There will be roughly 6 million employees in 2010, and those employees will have average hourly earnings of $22.75.
d.
There will be over 7.5 million employees in 2010, and those employees will earn, on average, $23.00 per hour.
Please select the best answer from the choices provided
A
B
C
D
Answer:
c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
what is the formula used to find the degrees of freedom used to choose the correct t-distribution in a two sample test of means with unknown but equal population standard deviation?
Some calculations of degrees of freedom with multiple number of parameters or relationships use the formula
Df = N - P,
where P is the number of different parameters or relationships.
For example, in a 2-sample t-test, N - 2 is used because there are two parameters to estimate.
What Are Degrees of Freedom?
The maximum number of logically independent values—that is, values with the freedom to change—in the data sample is referred to as the degree of freedom. If there is a remaining requirement for the data sample, specific data sample items or parameters must be chosen after the degrees of freedom quantity has been chosen.The formula to determine degrees of freedom is:
Df = N − 1
where:
Df =degrees of freedom
N=sample size
The number of independent variables that can be calculated in a statistical study is known as the degrees of freedom. These variables' values are not constrained, but if the data set is to meet the estimate parameters, the values do impose limitations on other variables.To know more about degree of freedom check the below link:
https://brainly.com/question/17305237
#SPJ4
Find the sign of the expression if the terminal point determined by t is in the given quadrant. cos(t)sec(t), any quadrant a positive b negative
The expression cos(t)sec(t) will be negative.
If the terminal point determined by t is in any quadrant where cos(t) is positive and sec(t) is negative, we can determine the sign of the expression cos(t)sec(t).
Recall that sec(t) is the reciprocal of cos(t):
sec(t) = 1/cos(t)
If cos(t) is positive in the given quadrant, then 1/cos(t) will be positive. This is because the reciprocal of a positive number is also positive.
However, if sec(t) is negative in the given quadrant, it means that cos(t) is positive but the sign of the expression is negative.
Therefore, in the specified conditions, the expression cos(t)sec(t) will be negative.
To learn more about quadrant
https://brainly.com/question/33240498
#SPJ11
A line is drawn so that it passes through the points (-3, -1) and (4, 2).
a. What is the slope of the line?
b. Using the point (4, 2) and the slope found above, write the equation of the line in point-slope form.
Answer:
y - 2 3/7 (x-4)
Step-by-step explanation:
A) To find slope, use the equation:where and are the x and y values of one coordinate point , and and are the x and y values of another coordinate point . Since we are given two coordinate points, (-3,-1) and (4,2), that means we can find the slope using the slope equation.
Let's choose (4, 2) as your point and (-3, -1) as your point, but you can switch those if you want! That makes and x^1 = -3, y1 = -1 . Plug these values into the slope equation:
The slope of the line is 3/7.
B) Remember that the general equation for point-slope form is, where m = the slope, = the x value of a coordinate point on the line, and = the y value of the same coordinate point on the line.
You are given (4, 2) as one of the coordinate points. That means = 4 and = 2. We found the slope, m = in part A. Now plug these values into the general equation for point-slope form to find your point-slope form equation:
Your point-slope form equation is y - 2 3/7 (x-4).
Answer:
a. 3/7 b. y=3/7x+2/7
Step-by-step explanation:
(-1-2)/(-3-4)=3/7
slope is 3/7
apply point for answer
2=3/7(4)+n
n=2/7
apply
y=3/7x+2/7
A certain plane is described by 2x+3y+4z=16. Find the unit vector normal to the surface in the direction away from the origin.
A certain plane is described by 2x+3y+4z=16. Find the unit vector normal to the surface in the direction away from the origin.Firstly, we will obtain the coefficients of the x, y and z variables from the equation of the plane:2x + 3y + 4z = 16The coefficients are 2, 3, and 4 respectively.
Now, we will calculate the magnitude of the normal vector, ||N||, using the formula:||N|| = √(a² + b² + c²)where a, b, and c are the coefficients of the x, y, and z variables respectively.||N|| = √(2² + 3² + 4²)= √(4 + 9 + 16)= √29Therefore, the unit normal vector in the direction away from the origin is given by:N = (2/√29) i + (3/√29) j + (4/√29) k. Given the equation of a plane as 2x + 3y + 4z = 16, we have to find the unit vector normal to the surface in the direction away from the origin. Here's how we can do it:To find the unit vector normal to the surface, we first need to find the coefficients of the x, y, and z variables from the equation of the plane. In this case, the coefficients are 2, 3, and 4 respectively.Next, we can use the formula ||N|| = √(a² + b² + c²) to calculate the magnitude of the normal vector, where a, b, and c are the coefficients of the x, y, and z variables respectively. In this case, ||N|| = √(2² + 3² + 4²) = √29.Finally, we can find the unit normal vector in the direction away from the origin by dividing each coefficient by the magnitude of the normal vector, ||N||. Thus, the unit normal vector is:N = (2/√29) i + (3/√29) j + (4/√29) k
Therefore, the unit vector normal to the surface in the direction away from the origin is (2/√29) i + (3/√29) j + (4/√29) k.
To learn more about unit vector normal visit:
brainly.com/question/30895179
#SPJ11
Tom had 216 marbles. First, he divided his marbles into 3 equal groups. He put
two groups in a bag. He took the remaining group of marbles and divided it
evenly between his three best friends. How many marbles did each of his
friends get?
Answer:
soowwwyyy for bad handwriting;(
Answer:
Each friend would get 24 marbles.
Step-by-step explanation:
Firstly, you would want to divide 216 by 3. That is 72. Next you would want to divide 72 by 3, because there are 3 best friends. So 72 divided by 3 equals 24. I hope this helps.
How do you check the factorization of a polynomial?
Completely factorize the polynomial using any methods that are appropriate, then look for shared factors and the polynomial's roots. Next, double-check your work to confirm accuracy.
Follow these steps to determine a polynomial's factorization:
Completely factor the polynomial using any relevant techniques, including grouping, utilizing the difference of squares or cubes, or using the quadratic formula.
By multiplying them all together, you can verify that each factor is accurate. The final figure must match the initial polynomial.
Look for shared factors among the polynomial factors. If the polynomial has common components, remove them from the equation and rewrite it as the product of the common factors and the other factors.
The polynomial's roots can be verified by setting each factor to zero and calculating the variable. The roots ought to correspond to the original polynomial.
Verify your work a second time to make sure all relevant elements have been identified and taken into consideration.
To learn more about polynomials, visit the link below:
https://brainly.com/question/11536910
#SPJ4
Explanations Needed (In-Depth)
I need explanations for Properties of Dilations and Similarity and Similarity Transformations.
I am in 10th-grade Geometry, Thank you so much!
Answer:
Properties of Dilation
Each angle of the figure is the same. Midpoints of the sides of the figure remain the same as the midpoint of the dilated shape. Parallel and perpendicular lines in the figure remain the same as the parallel and perpendicular lines of the dilated figure. The images remain the same.Similarity. In order for two figures to be similar, they must have congruent (equal) corresponding angle measures and proportional sides. Dilations create similar figures because multiplying by the scale factor creates proportional sides while leaving the angle measure and the shape the same.A similarity transformation is one or more rigid transformations (reflection, rotation, translation) followed by a dilation. When a figure is transformed by a similarity transformation, an image is created that is similar to the original figure. ... In general, similarity transformations preserve angles.A dilation stretches or shrinks a figure. The image created by a dilation is similar to the original figure. The scale factor of a dilation is the ratio of corresponding side lengths. In this course, the center of dilation will always be the origin.Dilations in Animation
The three basic rigid motions are translations, reflections, and rotations. In addition to being rigid motions, these are also considered transformations. Transformations change the location or orientation of an image but not the shape.Isometric transformations have the same shape AND size, similarity transformations just have the same shape. Isometric transformations have the same shape AND size, similarity transformations just have the same size. They are the same, no differences. ... A stretch is not a similarity transformation.\(\color{yellow}{}\)
What is the rule for the reflection?
Evaluate. −4+(6+8)÷(−2) Responses −11 negative 11 −5 negative 5 −2 negative 2 3
Using PEDMAS to calculate the mathematical operation -4 + (6 + 8) ÷ (-2) the value is -11
Mathematical OperationsThis is the use of mathematical operands to solve mathematical problems. This is involves the use of PEMDAS to solve mathematical expressions and equations.
In the given question,
-4 + (6 + 8) ÷ (-2)
Using PEMDAS;
The resultant operation will become
-4 + (6 + 8) ÷ (-2) = -11
The operation of -4 + (6 + 8) ÷ (-2) will give -11
Learn more on mathematical operation here;
https://brainly.com/question/550188
#SPJ1
what is 1/10 + 1/3 and simplify it
Answer:
\( \frac{13}{30} \)
Step-by-step explanation:
Reduce the fractions to having a common denominator (find the L.C.M. of 10 and 3).
\( \frac{1}{10} + \frac{1}{3} \)
\( = \frac{1 \times 3}{10 \times3} + \frac{1 \times 10}{3 \times 10} \)
\( = \frac{3}{30} + \frac{10}{30} \)
\( = \frac{13}{30} \)
a box with a square base and open top must have a volume of . we wish to find the dimensions of the box that minimize the amount of material used. first, find a formula for the surface area of the box in terms of only , the length of one side of the square base. simplify your formula as much as possible. next, find the derivative, .
The formula for the surface area of the box, in terms of the length of one side of the square base (s), is A = s^2 + 4s^2 = 5s^2.
The derivative of the surface area function with respect to s, denoted as dA/ds, gives us the rate of change of the surface area with respect to the length of one side of the base.
1. The surface area of the box consists of the area of the square base and the four equal sides. The area of the square base is s^2, and each side has a length of s. Therefore, the total surface area is given by A = s^2 + 4s^2 = 5s^2.
2. To find the derivative of the surface area function, we differentiate 5s^2 with respect to s using the power rule of differentiation. The power rule states that if we have a function f(x) = cx^n, then the derivative is f'(x) = cnx^(n-1).
Applying the power rule, we have dA/ds = d(5s^2)/ds = 10s.
3. The derivative, dA/ds = 10s, represents the rate of change of the surface area with respect to the length of one side of the square base. This means that for every unit increase in s, the surface area increases by 10s units.
The derivative does not provide information about minimizing the amount of material used. To find the dimensions of the box that minimize the amount of material used, we need to set up an optimization problem and solve for the critical points. This involves setting the derivative equal to zero and finding the values of s that satisfy this equation. However, since the problem statement does not provide a specific volume constraint or objective function, we cannot proceed with the optimization process.
To learn more about derivative, click here: brainly.com/question/23819325
#SPJ11
28. Katrina buys a 64-ft roll of fencing to
make a rectangular play area for her dogs.
Use 2(1 + w) = 64 to write a function for the
length, given the width. Graph the function.
What is a reasonable domain for the situation?
Explain.
Answer:
Step-by-step explanation:
The reasonable domain for the function 2 ( l + w ) = 64 is:
5, 10, 15, 20, and 25
The graph of the function 2 ( l + w ) = 64 is given below.
What is a function?A function is defined as a relation between a set of inputs having one output each.
We have,
A function of the perimeter of a rectangle:
2 ( l + w ) = 64
Here,
l = length and w = width
We need to find the value of length and width such that the perimeter of the rectangle is 64.
Now,
2 ( l + w ) = 64
l + w = 32
This means the combined measure of length and width must give us 32.
We need to write as a function for length where width is given.
We can assume the width to be: 5, 10, 15, 20, and 25.
Now,
l + 5 = 32
l = 27
l + 10 = 32
l = 22
l + 15 = 32
l = 17
l + 20 = 32
l = 12
l + 25 = 32
l = 7
We consider,
Width = 5, 10, 15, 20, and 25 to be the domain.
Length = 27, 22, 17, 12, and 7 to be the range.
We consider width values as the x-axis and length values as the y-axis.
The graph is given below.
Thus the reasonable domain for the situation given above is:
5, 10, 15, 20, and 25
The graph of the function 2 ( l + w ) = 64 is given below.
Learn more about functions here:
https://brainly.com/question/28135761
#SPJ5
name one ray?
i’m not sure which is a ray .. lol
Answer: Ray BA and Ray BC
Explanation:
A ray starts at at a fixed point and moves forever in one direction. If we break line AC into two parts BA and BC, then we can form two opposite rays. Another ray points to the right but the letter marked for this isn't clear, so I'm not sure what to write for that ray. Same goes for the dashed ray that points to the left.
BD is a segment because both endpoints are fixed. We don't have either side extending forever in that direction.
Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What is the minimum score you would need to be in the top 7%? 0.93 1.48 85.4 81.4
the minimum score needed to be in the top 7% is 85.48, which can be rounded to 85.4. To determine the minimum score needed to be in the top 7%, we need to use the properties of the normal distribution and the corresponding z-score.
First, we need to find the z-score that corresponds to the top 7%. This can be done by using the standard normal distribution table or a calculator with a normal distribution function. The z-score that corresponds to the top 7% is approximately 1.48.
Next, we can use the formula for transforming a z-score to a raw score:
raw score = z-score * standard deviation + mean
Substituting the values given in the problem, we get:
raw score = 1.48 * 6.1 + 76.4
raw score = 85.48
Therefore, the minimum score needed to be in the top 7% is 85.48, which can be rounded to 85.4.
In conclusion, the minimum score needed to be in the top 7% is 85.4. This calculation was performed by finding the z-score that corresponds to the top 7%, and then transforming the z-score to a raw score using the mean and standard deviation of the distribution.
To know more about normal distribution click here:
brainly.com/question/29509087
#SPJ4
There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color? P(R,R)
Pilihan jawaban
2/5
1/21
5/35
1/7
Answer:
1/7
Step-by-step explanation:
6 + 5 + 4 = 15
There are 15 marbles to start with.
p(event) = (number of desired outcomes)/(total number of outcomes)
First pick (there are 6 desired outcomes out of a total of 15 possible outcomes):
p(r) = 6/15
Now there are 5 red marbles left and a total of 14 marbles left.
Second pick (there are 5 desired outcomes out of a total of 14 possible outcomes):
p(r) = 5/14
These events are independent, so we multiply the two probabilities.
p(r, r) = 6/15 × 5/14
p(r, r) = 3/7 × 1/3
p(r, r) = 1/7
4. [8] Convert the following numbers from binary to octal and hexadecimal. a. 1010101110₂ b. 101010011100₂ 5. [4] Convert the following numbers from octal to hexadecimal. a. 746128 b. 2746358 6. [
4. Conversion of binary to octal and hexadecimal.
1010101110₂
OCTAL: Group the binary digits into groups of three, starting from the right.
Add leadings 0's if necessary.
So, 1010101110 is 001 010 101 110.
Now, substitute each group with an octal digit.
001 010 101 110₂ = 2 5 5 6₈
HEXADECIMAL: Group the binary digits into groups of four, starting from the right.
Add leading 0's if necessary.
So, 1010101110 is 0101 0101 1100.
Now, substitute each group with a hexadecimal digit.
0101 0101 1100₂ = 5 5 C₁₆
b. 101010011100₂
OCTAL: Group the binary digits into groups of three, starting from the right.
Add leadings 0's if necessary.
So, 101010011100 is 001 010 100 111 000.
Now, substitute each group with an octal digit.
001 010 100 111 000₂ = 2 5 4 7 0₈
HEXADECIMAL: Group the binary digits into groups of four, starting from the right.
Add leadings 0's if necessary.
So, 101010011100 is 0101 0100 1110.
Now, substitute each group with a hexadecimal digit.
0101 0100 1110₂ = 5 4 E₁₆.
5. Conversion of octal to hexadecimala.
746128:
Group the octal digits into groups of three, starting from the right.
Add leadings 0's if necessary.
So, 746128 is 007 461 028.
Now, substitute each group with a hexadecimal digit.
007 461 028₈ = 0 3 1 4 0 2₁₆
b. 2746358:
Group the octal digits into groups of three, starting from the right.
Add leadings 0's if necessary.
So, 2746358 is 010 111 100 110 101 100.
Now, substitute each group with a hexadecimal digit.
010 111 100 110 101 100₈ = 2 7 C 6 5 4₁₆.
6. Conversion of hexadecimal to octal.
To know more about hexadecimal visit:
https://brainly.com/question/28875438
#SPJ11
Someone help me with 12 pls plsssss plsssss
Answer:
Equation is 7n-9, a10=61
Step-by-step explanation:
nth term of an arithmetic sequence with first term a and common difference d is a+(n-1)d
Here, a=-2 , d=7
nth term is -2+(n-1)7=7n-9
a10=7*10-9=70-9=61
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
D. (8,0), (4,0)
Step-by-step explanation:
they both on tha line