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miss Akunina [59]
2 years ago
10

Please help asap!!!look at the box

Mathematics
2 answers:
exis [7]2 years ago
5 0
I think it’s B might be wrong though
Nina [5.8K]2 years ago
5 0

Answer:

y

Step-by-step explanation:

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What is an equation of the line that passes through the point (1,-3) and is perpendicular to the line x+3y=21
docker41 [41]

The linear equation that is perpendicular to the line x+3y=21 is:

y = 3*x - 6

<h3>How to find the equation of the line?</h3>

A general line in the slope-intercept form is written as:

y = m*x + b

Where m is the slope and b is the y-intercept.

Two linear equations are perpendicular if the product between the two slopes is equal to -1.

Rewriting the given line we can get:

x +3y = 21

3y = 21 - x

y = 21/3 - x/3

y = (-1/3)*x + 21/3

Then the slope is (-1/3), if our line is perpendicular to this one, then:

m*(-1/3) = -1

m = 3

our line is:

y = 3*x + b

To find the value of b, we use the fact that our line passes through (1, - 3)

-3 = 3*1 + b

-3 - 3 = b

-6 = b

The line is y = 3*x - 6

Learn more about linear equations:

brainly.com/question/1884491

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3 0
1 year ago
What is the mean of the following data values?<br> 22, 37, 49, 15, 92
attashe74 [19]

Answer:

43

Step-by-step explanation:

First, you have to add 22+37+49+15+92 to get 215. To find the mean, you need to divide by how much numbers there are (5).  So 215 divided by 5 is 43!

7 0
3 years ago
Read 2 more answers
A board is cut so that its length is changed from 8 feet to 6.5 feet. What is the percent of change in length? Round your answer
Schach [20]

it went from 8 to 6.5, namely 8 - 6.5 = 1.5.


if we take the 8 to be the 100%, what is 1.5 off of it in percentage?


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well, we can round that up to 18.8%, however since it's a subtraction from the board, we can say is -18.8%, a negative percent, because is a percent that was taken out of it.

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2 years ago
Mason bought a tablecloth that measured 8 feet by 4 feet.
Y_Kistochka [10]
32feet because 8×4=32
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3 years ago
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The correct answer is C, as long as there is supposed to be a slash there. ;)

Have an awesome day!
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