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3 years ago

Will Mark brainliest if correct.

Mathematics

1 answer:

Serhud [2]3 years ago

4 0

Answer:

SF = 7/3

Step-by-step explanation:

Like the problem hint says, you want to put the new coordinate over the old one to find the scale factor. We'll use both x and y.

-7/-3 = 7/3

14/6 = 7/3

Therefore, the scale factor is 7/3.

You might be interested in

Solve for x in the equation C = 8.5x + 6y. Show all work.

8_murik_8 [283]

First we move 6y to the other side. To do this, you subtract 6y on both sides

C - 6y = 8.5x + 6y - 6y

C - 6y = 8.5x

No divide both sides by 8.5 to isolate x

$\frac{C-6y}{8.5} = \frac{8.5}{8.5} x =\frac{C-6y}{8.5} =x$

3 0

3 years ago

Read 2 more answers

What is the slope of the graph?

Ivahew [28]

The slope is 5/1 because b =5

6 0

3 years ago

I need to know which number is greater on each problem from numbers 8-12 and 13-16

Elena L [17]

7) 7/8
8) 13.5%
9) 3/25
10) 150%
11) 1/4
12) 2/3
13) .31
14) 17/20
15) .81
16) 1.4

5 0

4 years ago

Given:

lys-0071 [83]

Answer:

$PS=13\text{ units}$

Step-by-step explanation:

So, we know that PR is 20, SR is 11, and QS is 5.

We also know that PQ is perpendicular to QR, forming the right angle at ∠Q.

We know all the side lengths except for PQ and PS (the one we want to find). Notice that if we find PQ first, we can then use the Pythagorean Theorem to find PS since we already know QS.

So, let's find PQ.

We can see that we can also use the Pythagorean Theorem on PQ. PQ, QR, and PR (the hypotenuse) will be our sides. So:

$(PQ)^2+(QR)^2=(PR)^2$

We know that PR is 20.

QR is the combined length of QS+SR, so QR is 5+11 or 16.

So, substitute:

$(PQ)^2+(16)^2=(20)^2$

Solve for PQ. Square:

$(PQ)^2+256=400$

Subtract 256 from both sides:

$(PQ)^2=144$

Take the square root of both sides:

$PQ=12$

So, the side length of PQ is 12.

Now, we can use the Pythagorean Theorem again to find PS. Notice that PQ, QS, and PS also form a right triangle, with PS being the hypotenuse. So:

$(PQ)^2+(QS)^2=(PS)^2$

We already know that QS is 5. We also just determined that PQ is 12. Substitute:

$(12)^2+(5)^2=(PS)^2$

Square:

$144+25=(PS)^2$

Add:

$169=(PS)^2$

Take the square root of both sides:

$PS=13$

Therefore, the length of PS is 13 units.

And we're done!

7 0

4 years ago

How do you use elimination in 4x-3y=8 and 5x-2y=-11

adelina 88 [10]

4x - 3y =   8 ⇒   8x - 6y = 16
5x - 2y = -11 ⇒ 15x - 6y = -33
   -7x = 49
      -7    -7
      x = -7
         4x - 3y = 8
         4(-7) - 3y = 8
         -28 - 3y = 8
   + 28 + 28
   -3y = 36
      -3   -3
      y = -12
      (x, y) = (-7, -12)

To use elimination you have to multiply the first graph by 2 and the second graph by 3 so that the two y-axis can be equal to -6. Then you do the rest to find the answer of the x-axis and the y-axis.

3 0

3 years ago