Answer:
1. Slope = 1/4
Point = ( 1, 1 )
2. Slope = -3
Point = ( 3, -20 )
Step-by-step explanation:
find the arc length of the polar curve r = e4θ where 0 ≤ θ ≤ 2π.
The arc length of the polar curve r = e^4θ where 0 ≤ θ ≤ 2π is approximately 32.59 units.
To find the arc length of a polar curve, we use the formula:
L = ∫[a,b] √[r² + (dr/dθ)²] dθ
In this case, we have:
r = e^4θ
dr/dθ = 4e^4θ
0 ≤ θ ≤ 2π
So, the arc length is:
L = ∫[0,2π] √[e^8θ + 16e^8θ] dθ
L = ∫[0,2π] e^4θ √(17) dθ
Using integration by substitution with u = e^4θ, we get:
L = (1/4√(17)) [u√(u² + 1)]|[u=e^4θ]^[u=1]
L = (1/4√(17)) [(e^4θ)√(e^8θ + 1) - √2]
L = (1/4√(17)) [(e^(4π)√(e^(8π) + 1) - √2) - (√(e^8 + 1) - √2)]
L ≈ 32.59
So the arc length of the polar curve r = e^4θ where 0 ≤ θ ≤ 2π is approximately 32.59 units.
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Between 20 and 40 units per hour, the long-run average cost curve exhibits?
a. economies of scale.
b. constant returns to scale.
c. diseconomies of scale.
d. both economies and diseconomies of scale.
Between 20 and 40 units per hour, the long-run average cost curve exhibits constant returns to scale. The statement that indicates between 20 and 40 units per hour, the long-run average cost curve exhibits constant returns to scale. This is option B.
In microeconomics, the long-run average cost (LRAC) is a method of showing the average expense per unit for a given level of production input. It is the cost of producing goods per unit using a specified number of inputs, such as labor and capital.
Long-run average cost is the average cost per unit of production after the company has adapted its production scale fully. As a result, the term "long-run" denotes a period in which all of the firm's inputs are variable.
The cost structure's shape is represented by the long-run average cost curve. The curve is determined by dividing the cost of producing goods by the number of goods produced. It aids in identifying the production rate at which a firm may generate the most output at the lowest cost.The long-run average cost curve depicts how the average cost of production varies with scale.
The curve might be downward-sloping, indicating economies of scale, flat, implying constant returns to scale, or upward-sloping, indicating diseconomies of scale, based on the company's production methods.
Hence, the answer is B.
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Two base angles of an isosceles triangle measure (3x + 2) and (5x – 30) degrees. How many degrees are in the third angle of the triangle? Be sure to use the correct place value.
Answer:
Step-by-step explanation:
Note that the base angle of an isosceles triangle is equal hence;
3x+2 = 5x-30
3x - 5x = -30-2
-2x = -32
x = -32/-2
x = 16
Hence one of the base angle = 3(16)+2 = 50degrees
The sum of angle in the triangle is 180, hence
50+50+y = 180
100 + y = 180
y = 80 degrees
Hence the third angle is 80 degrees
what is 70% as a decimal
Answer:
.70
Step-by-step explanation:
Always move 2 places to the left when you are converting a percent into a decimal.
Answer:
0.7
Step-by-step explanation:
To make a decimal a percentage you have to multiply by 100. So if you do the opposite, (make the percentage a decimal) you divide by 100
So, 70÷100= 0.7
The points on the number line do represent additive inverses. 3 and −3 are a zero pair, and when added they equal zero. The two numbers are the same distance from zero but in opposite directions.
Answer:
true
Step-by-step explanation:
because the question is he points on the number line do represent additive inverses. 3 and −3 are a zero pair, and when added they equal zero. The two numbers are the same distance from zero but in opposite directions. then it would equal 0
Answer:
Its because one is a positive integer and the other is a negative. So basically it is 3-3=0
Step-by-step explanation:
Which set of ordered pairs does NOT represent a function?
a. ((-3,9), (-2,4), (-1, 1), (0,0), (1.1), (2. 4). (3.9))
b. (1,3), (2, 6), (3,9), (4, 12). (5. 15))
c. (t.1), (4,2). (9. 3). (16,4). (25, 5))
d. 19.-3), (4, -2), (1, -1), (0.0), (1, 1), (4,2). (9. 3)
4.02 Lesson check ! (3)
The given sequence 22, 12, 2, -8 is arithmetic, and the common difference is -10.
How to determine if the sequence is arithmetic?An arithmetic sequence is a sequence where the difference between any pair of consecutive terms is a constant knowed as the common difference, and if k is that common difference, we can write the recursive formula as:
a(n) = a(n - 1) + k
Here we have the sequence:
22, 12, 2, -8
Taking the differences between consecutive terms we get:
12 - 22 = -10
2 - 12 = -10
-8 - 2 = -10
The differences are all equal, then this is an arithmetic sequence, and the common difference is -10.
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Which number sentence is true?
A. 7.7 > |-9.8|
B. |-7.7| < |-9.8|
C. -7.7 > |-9.8|
D. |7.7| > |-9.8|
Answer:
B. |-7.7| < |-9.8|
Step-by-step explanation:
got it right thats the explanation
Solve for the variable. Round to 3 decimal places
12
70°
Y
The value of the variable is 12. 771
How to determine the value of the variableIt is important that we know the different trigonometric identities. They are;
secantcosecanttangentcotangentsinecosineAlso, their different ratios are;
sin θ = opposite/hypotenuse
cos θ = adjacent/hypotenuse
tan θ = opposite/adjacent
From the information given, we have that;
Using the sine identity, we get;
sin 70 = 12/y
cross multiply the values
y = 12/0. 9396
divide
y = 12. 771
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An average male is 69 inches tall.Trolls are approximately 6 inches tall.The average ceiling height for a human is 108 inches tall.what is the scale factor to go from humans to trolls?
Answer:
k = 2/23Step-by-step explanation:
Humans
Average height = 69 inCeiling height = 108 inTrolls
Average height = 6 inCeiling height = xThe scale factor to work out the value of x:
k = 6/69 =2/23The value of x would be:
x = 108k = 108*2/23 = 9.39 inScale factor for average human height
6/692/23Now
Scale factor for ceiling height (Let unknown be x)=x/108So
x/108=2/23x=108(2/3)x=9.4inA unit of pressure called "feet of liquid substance- Y " (or ft−Y ) is equivalent to the pressure that will exist one ft below the surface of Y 's surface. If the conversion factor for this unit is 1 atm=41.5ft−Y,… - ... the density of the liquid substance Y is
The density of the liquid substance Y can be determined by using the conversion factor 1 atm = 41.5 ft⁻Y and the density of the liquid substance Y is approximately 19.68 ft⁻Y.
Conversion factor: 1 atm = 41.5 ft⁻Y
The "feet of liquid substance - Y" unit is defined as the pressure equivalent to the pressure that exists one foot below the surface of substance Y. In other words, if we go one foot below the surface of substance Y, the pressure will be equivalent to 1 ft⁻Y.
Since pressure is directly related to the density of a liquid, we can equate the pressure in units of atm to the pressure in units of ft⁻Y.
Therefore, we can say:
1 atm = 41.5 ft⁻Y
From this equation, we can conclude that the conversion factor for pressure between atm and ft⁻Y is 41.5.
we can calculate the conversion factor from "feet of liquid substance - Y" (ft⁻Y) to atm.
To convert from ft⁻Y to atm, we can use the inverse of the given conversion factor:
Conversion factor: 1 atm = 41.5 ft⁻Y
Taking the reciprocal of both sides:
1 / 1 atm = 1 / 41.5 ft⁻Y
Simplifying the equation:
1 atm⁻¹ = 0.024096 ft⁻Y⁻¹
Now, to find the density of the liquid substance Y in units of ft⁻Y, we can multiply the given density in g/cm³ by the conversion factor:
Density in ft⁻Y = 816.55 g/cm³ * 0.024096 ft⁻Y⁻¹
Calculating the density in ft⁻Y:
Density in ft⁻Y ≈ 19.68 ft⁻Y
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3. suppose that y1 and y2 are independent random variables, each with mean 0 and variance σ2. suppose you observe x1 and x2, which are related to y1 and y2 as follows: x1 = y1 and x2 = rhoy1 √(1 −rho2)y
x1 and x2 are uncorrelated random variables.
Given that y1 and y2 are independent random variables with mean 0 and variance σ^2, and x1 and x2 are related to y1 and y2 as follows:
x1 = y1 and x2 = ρy1√(1-ρ^2)y2
We can find the mean and variance of x1 and x2 as follows:
Mean of x1:
E(x1) = E(y1) = 0 (since y1 has mean 0)
Variance of x1:
Var(x1) = Var(y1) = σ^2 (since y1 has variance σ^2)
Mean of x2:
E(x2) = ρE(y1)√(1-ρ^2)E(y2) = 0 (since both y1 and y2 have mean 0)
Variance of x2:
Var(x2) = ρ^2Var(y1)(1-ρ^2)Var(y2) = ρ^2(1-ρ^2)σ^2 (since y1 and y2 are independent)
Now, let's find the covariance between x1 and x2:
Cov(x1, x2) = E(x1x2) - E(x1)E(x2)
= E(y1ρy1√(1-ρ^2)y2) - 0
= ρσ^2√(1-ρ^2)E(y1y2)
= 0 (since y1 and y2 are independent and have mean 0)
Therefore, x1 and x2 are uncorrelated random variables.
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Before a piece of steel can be sold for its maximum price, it must be 35 feet long with an absolute error of 1 foot. Find the range of acceptable heights for steels that are to be sold at full price by writing an absolute value inequality to represent this situation then solving it.
Let's call x to the height. The inequality that represents an acceptable range is:
|x - 35| ≤ 1
Solving it, we get:
x - 35 ≤ 1 or x - 35 ≥ -1
x ≤ 1 + 35 x ≥ -1 + 35
x ≤ 36 x ≥ 34
which is equivalent to 34 ft ≤ x ≤ 36 ft
Write an equation for the following math sentence.
One fourth times the difference of ten and a variable is 2/3.
Answer:
Step-by-step explanation:
Let x be the variable.
One fourth times the difference of ten and x is 2/3
1/4 (10 - x) = 2/3
10 - x = 3/2
-x = 3/2 - 10
x = -3/2 + 10
x = 13/2
The answer is:
\(\rm{\dfrac{1}{4}(10-d)=\dfrac{2}{3}}\)
Work/explanation:
First, the variable is d
Then, the difference of 10 and d is 10 - d.
One-fourth is 1/4.
The equation is : \(\rm{\dfrac{1}{4}(10-d)=\dfrac{2}{3}}\).
Therefore, this is the required equation.a student in a statistics class decided to analyze the number of candies per package for a project. a dot plot of the counts of candies in one package is shown below. what was the most common number of candies in a package?
To determine the most common number of candies in a package, the student would need to examine the dot plot and identify the value(s) with the highest frequency.
A dot plot is a type of graph that can be used to display the distribution of data by plotting individual observations as dots on a number line. To determine the most common number of candies in a package, the student would need to look at the dot plot and identify which value appears most frequently.
Typically, the most common number of candies in a package, also known as the mode, would be the value that has the highest number of dots plotted on the number line. If there are multiple values that have the highest frequency, then the data set is considered to have multiple modes. If all values in the data set appear with equal frequency, then the data set is considered to have no mode.
Thus, In conclusion, to determine the most common number of candies in a package, the student would need to examine the dot plot and identify the value(s) with the highest frequency.
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The most common number of candies in a package is 60
To analyze the number of candies per package for the project
60 candidates make up the majority of packages.
For a project in statistics class, a student chose to examine how many candies are contained in each container.
The maximum number of dots in a dot plot of the candy counts in one package is 60.
60 are the maximum limit of candies that can be placed in each and every package so these are the maximum number of candies that can be placed
The average candidate package has 60
So the most number of candies in each package are 60
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3/5 + 7/8 + 3/10
please help
Answer:
soln,
3/5+7/8+3/10
3×8/5×8+7×5/8×5+3×4/10×4
24/40+35/40+12/40
24+35+12/40
71/40
Use the graph of the quadratic function, g(x), to answer each question.
a. g(-1) =
b.g(-3) =
c. Find x when g(x) = 4.
X =
please help!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: where's the question?
Step-by-step explanation:
Answer:
your question please
Step-by-step explanation:
Both (E)- and (Z)-hex-3-ene can be treated with D2 in the presence of a platinum catalyst. How are the products from these two reactions related to each other?a. The (E)- and (Z)-isomers generate the same products but in differing amounts.b. The (E)- and (Z)-isomers generate the same products in exactly the same amounts.The products of the two isomers are related as constitutional isomers.The products of the two isomers are related as diastereomers.The products of the two isomers are related as enantiomers.
The products obtained from the reactions of (E)- and (Z)-hex-3-ene with D2 in the presence of a platinum catalyst are related as enantiomers.
Hence, the correct option is E.
Enantiomers are stereoisomers that are non-superimposable mirror images of each other. In this case, the (E)- and (Z)-isomers have different spatial arrangements around the C=C double bond. When they react with D2 in the presence of a platinum catalyst, the deuterium atoms add to the double bond, resulting in two new chiral centers.
Since the two isomers have different spatial arrangements around the double bond, the addition of deuterium atoms will produce enantiomeric products. Therefore, the products obtained from the reactions of (E)- and (Z)-hex-3-ene with D2 are related as enantiomers.
Hence, the correct option is E.
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can someone help me
Answer:
S=49
Step-by-step explanation:
Any triangle has an interior angle of 180.
So just add them up and set the sum equal to 180 degrees.
2s+s+33=180
3s=180-33
3s=147 . Divide both sides by 3 to isolate variable s
s=49
The graphs show the distances traveled by two cars moving at constant rates which unit rate matches these 2 graphs pls helpppp
Answer:
i think is (0.5,25)
Step-by-step explanation:
becuse at the time they have the same speed
Answer:
z
Step-by-step explanation:
z
What is the formula for total surface area of
cylinders?
Thanks in advance
Answer:
For a cylinder there is 2 kinds of formulas the lateral and the total. the lateral surface area is just the sides the formula for that is 2(pi)radius(height). the formula for the total surface area is 2(pi)radius(height) + 2(pi)radius squared.
Step-by-step explanation:
Need help plz will get brainliest
Answer:
3,-2.
please mark! x
Answer:
This is your answer and you better mark brainliest like promised.
Step-by-step explanation:
W=(-5,9)
X=(-7,8)
Y=(-9,2)
Z=(-2,5)
Hopes this helps you!!
Also mark me as a friend too!!
I need help with this
Answer:
MNO is also 70. they are corresponding angles
The population of a city increases by 3.1% per year. If this year's population is
290,000, what will next year's population be, to the nearest individual?
Answer:
the next year population is 122,689
Step-by-step explanation:
The computation of the next year population is as follows:
= This year population × increase percentage
= 119,000 × (1 + 0.031)
= 119,000 × 1.031
= 122,689
Hence, the next year population is 122,689
The above formula is applied so that the correct value of the population could come
and the same is relevant
Is 93.936 a rational number and can someone please explain how to know if it’s rational or not:)
Answer:
ofcs it's rational number
Step-by-step explanation:
this is bcs this number '93.936' do not contain recurring decimals
Solve the equation f/3 plus 22 equals 17
The solution to the equation f/3 + 22 = 17 is f = -15.
Solve the equation f/3 + 22 = 17, we need to isolate the variable f on one side of the equation. Here's a step-by-step solution:
Let's start by subtracting 22 from both sides of the equation to move the constant term to the right side:
f/3 + 22 - 22 = 17 - 22
f/3 = -5
Now, to eliminate the fraction, we can multiply both sides of the equation by 3. This will cancel out the denominator on the left side:
(f/3) × 3 = -5 × 3
f = -15
Therefore, the solution to the equation f/3 + 22 = 17 is f = -15.
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(8x^4-64x^3+3x-28) / (X-8)
Answer:
\(8x^{3}+3-\frac{4}{x-8}\)
Step-by-step explanation:
Set up the synthetic division using the coefficients of the numerator and the root in the denominator. Divide using the rules for synthetic division.
mad : 9,7, 11, 10, 8
The mean absolute deviation (MAD) for the given sequence 9, 7, 11, 10, 8 is 1.2.
Calculate the mean absolute deviation (MAD) for the sequence of numbers 9, 7, 11, 10, 8:
Find the mean (average) of the numbers:
Mean = (9 + 7 + 11 + 10 + 8) / 5 = 45 / 5 = 9.
Calculate the absolute deviation for each number by subtracting the mean from each data point and taking the absolute value:
Absolute deviations: |9 - 9|, |7 - 9|, |11 - 9|, |10 - 9|, |8 - 9|
= 0, 2, 2, 1, 1.
Find the mean of the absolute deviations:
MAD = (0 + 2 + 2 + 1 + 1) / 5 = 6 / 5 = 1.2.
Therefore, the mean absolute deviation (MAD) for the given sequence 9, 7, 11, 10, 8 is 1.2.
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Question
"Calculate the mean absolute deviation (MAD) for the following sequence of numbers: 9, 7, 11, 10, 8."
The philanthropic organization in Exercise 1 expects about a 5%success rate when they send fundraising letters to the people on their mailing list. In Exercise 1 you looked at the histograms showing distributions of sample proportions from 1000 simulated mailings for samples of size and The sample statistics from each simulation were as follows:a) According to the Central Limit Theorem, what should the theoretical mean and standard deviations be for these sample sizes?b) How close are those theoretical values to what was observed in these simulations?c) Looking at the histograms in Exercise at what sample size would you be comfortable using the Normal model as an approximation for the sampling distribution?d) What does the Success/Failure Condition say about the choice you made in part c?
The Normal model is a good approximation for the sampling distribution.
a) According to the Central Limit Theorem, the theoretical mean and standard deviation for a sample size of 20 should be 0.05 and 0.02, respectively. For a sample size of 100, the theoretical mean and standard deviation should be 0.05 and 0.01, respectively.
b) The observed mean and standard deviation for a sample size of 20 was 0.052 and 0.021, respectively. For a sample size of 100, the observed mean and standard deviation was 0.051 and 0.012, respectively. These values are fairly close to the theoretical values.
c) Looking at the histograms in Exercise 1, I would be comfortable using the Normal model as an approximation for the sampling distribution at a sample size of 100.
d) The Success/Failure Condition states that the sample size should be large enough for the sampling distribution of the sample proportions to be approximately normal. Since I chose a sample size of 100, which satisfied the condition, I can be confident that the Normal model is a good approximation for the sampling distribution.
The sample size of 100 is large enough for the sampling distribution of the sample proportions to be approximately normal, and the observed mean and standard deviation is close to the theoretical values. Therefore, the Normal model is a good approximation for the sampling distribution.
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