5.
Find a solution to the following system of equations.
-2x + y = -3
- x + 2y = 3
(-21, -9).
(3, 3)
(0, 2)
Answers
Answer:
(3,3)
Step-by-step explanation:
I used a graphing tool to graph the two equations. The lines intercept at (3,3). Therefore, (3,3) would be a solution to the system of equations.
Related Questions
only answer question twelve …
Answers
Answer:
I c a n t read the question
Step-by-step explanation:
PLZ HELP...
David cooks a turkey in the oven at 450 degrees for 30 mins. Then he lowers the heat to 300 degrees and cooks the turkey for 2 more hours. How many minutes does David cook the turkey in all??
Answers
Answer:
150 minutes
Step-by-step explanation:
Answer:
The answer is explained below
Step-by-step explanation:
if david cooks the turkey for 30 mins at 450 and then lowers to 300 and cooks for 2 more hours. All you have to do is to add both times.
30 mins + 2 hours= ? solve it and fnd out :)
Explain the cosine rule and sine rule while also saying how to use it and provide examples (keep it in simple terms)
Answers
Answer:
Sure, I'll explain the cosine rule and sine rule in simple terms:
The cosine rule (also known as the law of cosines) is used to find the length of a side or the measure of an angle in a triangle given the lengths of the other sides and the angle between those sides. It states that c^2 = a^2 + b^2 - 2ab cos(C), where c is the length of the side opposite angle C, and a and b are the lengths of the other two sides.
Here's an example of how to use the cosine
Suppose we have a triangle with sides a=6, b=8, and an angle between them c=45 degrees. We want to find the length of the remaining side of the triangle, side a.
Using the cosine rule:
a^2 = b^2 + c^2 - 2bc * cosA
where A is the angle opposite side a, we can plug in our values and solve for a:
a^2 = 8^2 + 6^2 - 2(8)(6) * cos(45)
a^2 = 64 + 36 - 96 * 0.707
a^2 = 10.56
a = sqrt(10.56)
a = 3.25 (rounded to two decimal places)
Therefore, the length of side a is approximately 3.25 units.
Answer:
Step-by-step explanation:
75% of what number is 24? Show your work or explain how you arrived at your answer.
Answers
24=3x/4
24 x 4/3 = x
answer is 32!
A community group is picking up trash along a portion of the highway that is 1.48 miles long. In one hour they can clean a section about 1/8 mile long. Approximately how many hours will it take the group to clean the stretch of highway?
Please help ASAP
The answers are
3/16
16/3
2
12
Answers
Answer:
12 if im correct
Step-by-step explanation:
first we have to see that they are doing 1/8 of a mile per hour so if we divide 1.48 by 1/8 it should give us the time
first we convert 1/8 to a decimal which is .125 and we divide 1.48 by .125
giving us 11.84
since it is time, 11 hrs would be too little of a time so we need to round up to 12
Hope thats right
The number of hours for the group to clean the stretch of highway is A = 12 hours
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
In an equation, the expressions on either side of the equals sign are called the left-hand side (LHS) and the right-hand side (RHS), respectively. The equals sign (=) indicates that the two expressions have the same value, and that the equation is true for certain values of the variables involved.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. It typically consists mathematical operations, such as addition, subtraction, multiplication, division, and exponentiation.
Given data ,
Let the number of hours be represented as A
Now , the value of A is
If the group can clean 1/8 mile of the highway in one hour, we can calculate how many sections of 1/8 mile are in 1.48 miles:
1.48 miles / (1/8 mile per section) = 11.84 sections
On simplifying the equation , we get
This means that the group will need to clean 11.84 sections of 1/8 mile each to clean the entire stretch of highway.
Since they can clean 1 section in 1 hour, it will take them 11.84 hours to clean the entire stretch of highway ≈ 12 hours
Hence , the number of hours to clean the highway is 12 hours
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According to the 2019 census data, the population of Texas was about 2.5 x 10^7 people. The land area of Texas is about 2.6 x 10^5. What was the average number of people per square mile in 2010?
a. 0.96 x 10^2
b. 9.6 x 10^1
c. 0.96 x 10^35
d. 9.6 x 10^12
Answers
Finding people/square mile
There are x number of people in y area. To find x number of people in a single unit of area, divide by area.
\(\frac{(2.5 * 10^7) }{(2.6*10^5)}\)
2.5/2.6 = 0.96
10^7
____ subtract exponents, so 10^2
10^5
answer is (a) 0.96 x 10^2
I need help with this problem it's about percents
Answers
Answer:
95%
Step-by-step explanation:
So the fraction of the amount of balls Kayla hit is 19/20 if you multiply 19 and 20 by five, you will get the fraction 95/100, so Kayla hit 95% of the balls pitched to her.
Answer:
95%
Step-by-step explanation:
Percentage is written as the favourable outcomes, divided by the total outcomes
The favourable outcome here is the 19 hits
The total outcomes is 20
Now, we divide 19/20
19/20 = 0.95 = 95%
Another way is to multiply the fraction by 5/5 to get 95/100
Since percentage is based on 100, you can take 95 as your percentage
-Chetan K
Please help with this question please.
Answers
Option d. m>7 is the correct answer.
Given,
2m+5>19
or, 2m+5+(-5)>19+(-5) [adding both side with a negative number doesn't
change the inequality sign]
or, 2m>14
or, (2m/2)>(14/2) [also dividing both sides by a non-negative number doesn't change the inequality sign]
or, m>7.
Hence, m>7 is the correct answer to the given question.
Learn more about inequality problems,
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basic understanding series
word 2- surface area
——————
explain surface area simply and give an example of how to find it
-
brainliest question: give a real world example of surface area
Answers
Answer: A basic definition of surface area would be defined as the amount of space that is covering the outside of a 3D shape. A example of real world surface are would be to find out how much frosting you would need to put on the surface of a cake
What is 10/11 as a decimal?
Answers
Answer:
0.90909091
10/11 as a decimal is 0.90909091
Answer:
Step-by-step explanation:
The fraction 10/11 can be written in decimal form as 0.9091.
if n(p)=20, n(Q)=30 and n (PUQ)=40
then
find the value of n(PnQ)
Answers
Answer:
\({↪ \bold{answer}} \\ n(P{ \small{U}}Q) = n(P) + n(Q) - n(P{ \small{n}}Q) \\ n(P{ \small{n}}Q) = (20 + 30) - 40 \\ = 50 - 40 \\ { \boxed{ \green{n(P{ \small{n}}Q) = 10}}} \\ \\ { \small{ \underline{ \blue{⚜beckerjnr}}}}\)
n(P∩Q) = 10.
What is set?A set is a grouping of well-defined, separate things. The term "well-defined" refers to a certain characteristic that makes it clear whether or not the provided object belongs to the set. The word "distinct" denotes that each item in a collection must be unique. The general formula for sets is n(A∪B) = n(A) + n(B) - n(A⋂B).
Given the value of n(p)=20, n(Q)=30, and n (PUQ)=40, to find n(P∩Q). Let's put these values in the general formula of the set.
n(P∪Q) = n(P) + n(Q) - n(P⋂Q)
40 = 20 + 30 - n(P⋂Q)
n(P⋂Q) = 10
therefore the value of n(P⋂Q) is 10.
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show set of data that is a function using at keast 5 domain values and 5 range values it can be shown in a format of your choice SHOW ALL YOUR WORK USING Y=M+B
Answers
Sure! Here's an example set of data that is a function:
| x | y |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 9 |
| 5 | 11 |
To show that this is a function, we need to check that for every value of x, there is only one corresponding value of y. We can see from the table that this is true - for example, when x=2, y=5 and there are no other values of x that give y=5.
To represent this function in the form y=m*x+b, we need to find the values of m and b. We can use the slope-intercept form of a line to do this, which is:
y = m*x + b
where m is the slope of the line and b is the y-intercept (the value of y when x=0).
To find the slope, we can use the formula:
m = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are any two points on the line. Let's use the points (1, 3) and (2, 5):
m = (5 - 3) / (2 - 1) = 2
So the slope of the line is 2.
To find the y-intercept, we can use any point on the line and solve for b. Let's use the point (1, 3):
y = m*x + b
3 = 2*1 + b
b = 1
So the y-intercept is 1.
Now we can write the equation of the line in slope-intercept form:
y = 2*x + 1
To check that this equation matches the values in the table, we can substitute each value of x into the equation and see if we get the corresponding value of y:
When x=1: y = 2*1 + 1 = 3
When x=2: y = 2*2 + 1 = 5
When x=3: y = 2*3 + 1 = 7
When x=4: y = 2*4 + 1 = 9
When x=5: y = 2*5 + 1 = 11
These values match the values in the table, so we have shown that the set of data is a function and we have written its equation in the form y=m*x+b.
chatgpt
Sure, here is a set of data that is a function using at least 5 domain values and 5 range values:
```
Domain | Range
------- | --------
-2 | -4
-1 | -3
0 | -2
1 | -1
2 | 0
```
This data can be shown in a table, a graph, or a set of ordered pairs. In this case, we will show it as a table:
```
| Domain | Range |
|---|---|
| -2 | -4 |
| -1 | -3 |
| 0 | -2 |
| 1 | -1 |
| 2 | 0 |
```
We can use the equation y = m + b to find the slope (m) and y-intercept (b) of this function. The slope is calculated by finding the change in y (the range) divided by the change in x (the domain). In this case, the change in y is -4 - (-3) = -1, and the change in x is -2 - 0 = -2. Therefore, the slope is -1/-2 = 1/2. The y-intercept is calculated by finding the value of y when x is 0. In this case, the value of y is -2. Therefore, the y-intercept is -2.
The equation of this function is y = (1/2)x - 2. This function can be graphed by plotting the points in the table and connecting them with a line. The graph of this function is a straight line.
i need to answer part b. i really need help. this is due tomorrow pls. ☹️
Answers
step explanation: it helped me with a lot of assignments.
Answer:
28+x
Step-by-step explanation:
6+6=12
8+8=16
12+16= 28
rat snakes produce 12to54 each year. if 8% percent of the young survives maturity,what is the maximum number of surviving offspring a rat snake would be expected to produce in 9 years?
Answers
Sorry if It’s wrong!!
Answer:
38
Step-by-step explanation:
Since 54 is the maximum amount of offspring that ratsnakes produce we would multiple 54 by 9 giving us 486. and 8% of 486 is 38
(Proportional Relationships MC)
The table shows a proportional relationship.
Workout (hours) 1 2 3
Calories Burned 240 480 720
Create a description in words for the table.
A The number of calories burned is dependent on the number of hours working out. For a one-hour workout, there are 240 calories burned, and for a two-hour workout, there are 480 calories burned.
B The number of calories burned is dependent on the number of hours working out. For every 240-hour workout, there is 1 calorie burned, and for every 480-hour workout, there are 2 calories burned.
C The number of hours working out is dependent on the number of calories burned. For a one-hour workout, there are 240 calories burned, and for a two-hour workout, there are 480 calories burned.
D The number of hours working out is dependent on the number of calories burned. For every 240-hour workout, there is 1 calorie burned, and for every 480-hour workout, there are 2 calories burned.
Answers
the constant is 240. for every hour, the person burns 240 calories.
hope this helped :-)
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Answers
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Find the slope of the line that passes through (8, 5) and (3, 1)
PLEASE HELP
Answers
Answer: m = 4/5
Step-by-step explanation:
Use the slope formula
\(y_{2}-y_{1}/ x_{2} - x_{1}\)
Let's plug in the points:
5 - 1 / 8 - 3
4/5
So, m=4/5
Answer:
A) \(\frac{4}{5}\)
Step-by-step explanation:
Slope formula given 2 points:
\(\frac{y_{2}-y_{1}}{x_{2}-x_1}\)
Our points are (8,5) and (3,1)
Substitute:
\(\frac{1-5}{3-8} \\=\frac{-4}{-5}\)
negatives cancel out:
=\(\frac{4}{5}\)
Hope this helps! :)
Find the value of b.
A. 14
B. 15
C. 64
D. 289
Answers
Answer:
b or c
Step-by-step explanation:
Answer:
i would say b....
Step-by-step explanation:
Which of the following represent the same ratio?
Answers
Answer: 2 to 3
Step-by-step explanation:
the ratio forms are 2/3, 2 to 3, and 2:3
HELP QUICKKKKKKKKKKKKKKKKKKKK
Answers
ion kno how to explain but yea
Answer:
148
Step-by-step explanation:
<BZD = 58 + 90 = 148
Use the triangle formed by the vertices L(—3, 4), A(O, 5) and D(2, l). AL' A'D' is a triangle formed by using the transformation rule (x, y) —5 (—x, y) .
a. What type of transformation is ALAD —AL'A'D'?
b. Are A LAD and AL'A'D'congruent or similar?
Answers are not a or b. those need answers themselves! Pls pls pls! I really need this done! I will fail if i dont finish!
Answers
Answer:
Step-by-step explanation:jens whenever ejene end snsnsns s snehhsuwi
A spinner has a 60 degree green sector, a 120 degree blue sector, and a 180 degree red sector. Harry spins the spinner twice.
a) Find the probability that the spinner points to the same color on both spins
b) Find the probability that the spinner points to the blue sector at least once.
Answers
Blue has an 240% chance
Red has 360% chance
Every week, Adam walks one mile each day for 4 days of the week. He can usually walk one mile in about 14 to 16 minutes. Estimate the number of minutes Adam will spend walking over an 8 week period. Explain how you determined your estimate. Write an equation that represents the number of miles, m, Adam walks in w weeks.
Answers
Answer:
he would walk for about 448 minutes in the span of 8 weeks and he would walk 32 miles in eight weeks
Step-by-step explanation:
m=4w for the number of miles he walked
Find the surface area of the figure below. Round your answer to the nearest whole number.
Answers
Please helpp!! Ty ty!♡♡
Answers
Answer:
25
Step-by-step explanation:
4a +12 -2c + c
4( ) + 12 - 2( ) + ( )
4(4) + 12 - 2(3) + 3
16 + 12 - 6 + 3
28 - 6 + 3
22 + 3
25
Helping in the name of Jesus.
Therefore, 4a + 12 - 2c + c = 25
Step-by-step explanation:a = 4
c = 3
Swap letters for numbers:4a + 12 - 2c + c
(4)(4) + 12 - (2)(3) + 3
16 + 12 - (2)(3) + 3
28 - (2)(3) + 3
28 - 6 + 3
22 + 3 = 25
Draw a conclusion:
Hence your answer is:4a + 12 - 2c + c = 25
I hope this helps!
about how many inches are equivalent to 3 meters
Answers
Answer:
About 118.11
Step-by-step explanation:
This data set shows the daily number of visitors who used the yoga center at the park. The numbers in blue show the numbers for weekends. Daily Number of Visitors 13 15 12 18 9 18 20 15 22 26 24 12 29 12 18 8 16 17 21 19 38 24 37 27 32 34 28 31 15 Select the correct answer. For how many days were the numbers of visitors recorded? A. 27 B. 28 C. 29 D. 30 E. 31
Answers
C. 29
We know this by counting the amount of numbers given for the data set
Please give steps how to do it thanks.
Answers
24
make a box plot showing it. It's quite simple.
What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters long, 6.6 centimeters wide, and 6 centimeters tall?
Answers
Answer:
Step-by-step explanation:
3.1313109
Answer: the answer should equal 3.131
Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.
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heeeeeeelp meeee.......... pleassssssssseeeeeeeeeeeeeee............
Adam wants to buy a $35 shirt. He has $9. After two weeks of saving, he has $15. Three weeks after that, he has $24. If Adam saves money at a constant rate, will he have enough to buy the shirt after 8 weeks? Solve the problem by making a table and then making a graph...
Answers
Answer:60
Step-by-step explanation: