What are the solutions to the following system of equations? Select the correct answer below.

2 answers:

7 0

      y = x² - 4x + 8
4x + y = 12

   4x + y = 12
4x + (x² - 4x + 8) = 12
x² + 4x - 4x + 8 = 12
       x² + 8 = 12
      - 8 - 8
   x² = 4
      x = ±2
   4x + y = 12
4(2) + y = 12
   8 + y = 12
   - 8 - 8
   y = 4

    4x + y = 12
4(-2) + y = 12
    -8 + y = 12
+ 8    + 8
   y = 20

(x, y) = (2, 4) and (-2, 20)

ICE Princess25 [194]3 years ago

6 0

the answer to this question is (2, 4) and (−2, 20)

You might be interested in

What has 2 fewer sides than a heptagon

AVprozaik [17]

A pentago Which Is A Five Side Figure and a heptagon is a seven sided figure

4 0

3 years ago

Read 2 more answers

Consider △RST and △RYX.

astra-53 [7]

Answer:

B. StartFraction R Y Over R S EndFraction = StartFraction R X Over R T EndFraction = StartFraction X Y Over T S EndFraction

i.e $\frac{RY}{RS}$ = $\frac{RX}{RT}$ = $\frac{XY}{TS}$

Step-by-step explanation:

Two or more shape or figures are similar when their sides and angles can be compared appropriately.

In the given figure, ΔRXY is within ΔRST. Since the two triangles are similar, then their length of sides can be compared in the form of required ratios.

So that by comparison,

$\frac{RY}{RS}$ = $\frac{RX}{RT}$ = $\frac{XY}{TS}$

Therefore, the correct option to the question is B.

8 0

3 years ago

Read 2 more answers

Jake forgot to replace the cap on a bottle of cologne. The cologne began to evaporate at the rate of 18% per day. If the origina

Cerrena [4.2K]

Answer:

x is 738

Step-by-step explanation:

6 0