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Scilla [17]
3 years ago
11

Find the perimeter of a rectangle with sides 3x + 6 and -2x -8​

Mathematics
2 answers:
patriot [66]3 years ago
5 0

Answer:

The perimeter of a rectangle with sides 3x + 6 and -2x - 8​ will be:

P = 2x - 4

Step-by-step explanation:

We know that the perimeter of a rectangle of length 'l' and width 'w' is given by the formula

  • P = 2(length + width)

Given the sides of a rectangle

  • 3x + 6
  • -2x - 8​

As the opposite sides of a rectangle are congruent.

Therefore, we conclude that the Perimeter of a rectangle can be determined using the formula

\:P\:=\:2\left(3x\:+\:6\:+\:\left(-2x\:-\:8\right)\right)

    =2\left(3x+6-2x-8\right)

    =2\left(x-2\right)

     =2x-4

Therefore, the perimeter of a rectangle with sides 3x + 6 and -2x - 8​ will be:

P = 2x - 4

vazorg [7]3 years ago
3 0

Answer:

2x - 4

Step-by-step explanation:

2(3x + 6) = 6x + 12

2(-2x - 8) = -4x -16

6x + 12 - 4x - 16 = 2x - 4

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I need this fast yal. i am willing to give brainly
andreyandreev [35.5K]

Answer:

The answer is

y = 6x + 43

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

The original line is y = 6x + 1

Comparing with the general equation above

Slope = 6

Since the lines are parallel their slope are also the same

Slope of parallel line = 6

The equation of the line using point (-7,1) and slope 6 is

We have the final answer as

y = 6x + 43

Step-by-step explanation:

srry if this is wring, its what i got also pls give brainliest, im trying to get to vituoso :3

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Please help I,think it's A but I don't know what to do ​
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Answer:

(x,y) - (x,-y)

Step-by-step explanation:

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Does the system have one, none or infinite solutions?<br> 8x + 4y = 12<br> y = -2x + 3
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Answer:

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Step-by-step explanation:

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3 years ago
Bailey has an hour to get ready for school. She spends 3/6 of the time getting dressed. She spends 1/4 of that time eating break
Katen [24]
Well, to find out whether she spent more time getting dressed or eating breakfast, we simply have to compare the fractions of the hour that she took on each.
We know that she took 3/6 of an hour to get dressed and 1/4 of an hour to eat breakfast. To find out which activity she spent more time on, we simply need to see which fraction is bigger.
To do this, we must first reduce the fractions to lowest terms. 1/4 is already in lowest terms, so we can leave that alone. 3/6 can be reduced, however, and since 3 goes into 6 twice, it reduces to 1/2.
Now, we can compare the fractions.
Is 1/2 of an hour or 1/4 of an hour more?
The answer is 1/2, so now we know that Bailey spent more time getting dressed than eating breakfast.
Hope that helped! =)
6 0
3 years ago
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