(Supplementary QRS= 121 TUV=149) (Complementary QRS= 31 TUV= 59)

**Answer:**

x = 1.5

**Step-by-step explanation:**

To get the vertex of a quadratic equation you can use the formula

x = -b/2a

where f(x) = ax² + bx + c

So you would get -12/2(-4)

-12/-8

x = 1.5

Then substitue x in the equation to find y. I won't be doing that here

**Answer:**

x= 1.5

**Step-by-step explanation:**

According to the question

10x = 15

x = 15 / 10

<u>**x = 1.5**</u>

**Answer:**

Length: 20, Width: 14

**Step-by-step explanation:**

(x-12)(x-18)

x^2-30x+216=280

x^2-30x-64=0

x=32,-2

Plug 32 into x, and see if it equals 280