Evaluate −x2 − 4x − 4 for x = −3

 -x2 - 4xfor - 4x + 3  =

 -1 • (x2 + 4xfor + 4x - 3)

 -x2 - 4xfor - 4x + 3  = 0

-x2-4xfor-4x+3  = 0

Hope this helps.

a. 1 cup of yellow and 1.75 cups of blue

b. 4 cups of yellow and 7 cups of blue

Step-by-step explanation:

a. We can multiply both sides of this ratio by an number of our choice to get an equivalent ratio. 2:3.5 = 1: 1.75. (We are multiplying by 1/2)

b. 2 : 3.5 = 4 : 7 (We are multiplying by 2)