5 are more than 42 in tall
-28; 200•.04
-fewer than expected
x/3 = 5
If you multiply both sides by 3, you get
x = 15
The range is 1 to -3 (both included) and the domain is -3 to 2 (both included)
A ) Length = 5 - 2 x
Width = 3 - 2 x
The area of the bottom:
A = L x W = ( 5 - 2 x ) ( 3 - 2 x ) = 15 - 10 x - 6 x + 4 x² =
= 4 x² - 16 x + 15
b ) 4 x² - 16 x + 15 = 10
4 x² - 16 x + 5 = 0
x = (16 - √(256 - 80))/ 8 = ( 16 - 13.266 ) / 2
x = 0.34 in
