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Kamila [148]
3 years ago
6

Use substitution to solve the system. x = 2y +13 - 2x + 3y = -21

Mathematics
1 answer:
il63 [147K]3 years ago
7 0
The answer is
(x,y) = (3,-5)
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3. Given that ∆RSV - ∆RTU, find the coordinates of S and the scale factor. R(0, 0) T(16,0) V(0, --6) U(0, -8) ​
MArishka [77]

Answer:

I'll give the scale factor and you can compute the coordinates of S

Step-by-step explanation:

the dilation if centered about the origin is the scale factor multiplied by each coordinate.

so looking at points V and U, the scale factor F is found by solving for F:

-6xF= -8

F=8/6=4/3

Now you can compute the coordinates for S

send a comment if you need help

5 0
3 years ago
The area of a rectangle is 42 square inches and one side is 12 inches long find the perimeter of the rectangle show your work
uranmaximum [27]
So first of all we need to know that area is length times width
Area = L x W 
since we know the area is 42 and the length is 12 lets plug those in
42 = 12 x W 
now we dont know what W is yet but we can figure it out by dividing 42 by 12
42/12 = 3.5 
So W = 3.5!
but its asking for the perimeter and we know that perimeter is all of the sides of the rectangle added up. Heres a picture
   
       ___3.5___
      |                 |
      |                 |
 12 |                 |  12 
      |                 |
      ************
             3.5

see now we just add those all up together:)

12 + 12 + 3.5 + 3.5 = 31!!
so our perimeter is 31 inches:)
have a good one 
PICK ME BRAINLIEST!:D
5 0
3 years ago
HELPPP PLZZZ I BEGZZZ
valkas [14]

Answer:

I use schoology too.

Step-by-step explanation:

Just copy and paste it and look it up. Internet always helps.

4 0
3 years ago
D. 5y = х – 30<br> What’s the slope intercept form
LiRa [457]

Answer:

y = \frac{1}{5}x - 6

Step-by-step explanation:

Slope intercept form is y = mx + b

To get to this form, y needs to be isolated.

So, divide each side by 5, as this will get y by itself.

5y = х – 30

y = \frac{1}{5}x - 6 is the equation in slope intercept form

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3 years ago
PLEASE HELP ME!!!!!!!!!!!!!!
kakasveta [241]
Use the formula for the volume of a cylinder which is V=(pi)r^2 h and substitute to get V=(pi)1.2^2 (4). then solve to get about 18.1. then multiply that by the cost, 22 to get about $398.10.
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4 years ago
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