Answer:
B
Step-by-step explanation:
The volume (V) of the prism is calculate as
V = lbh ( l is the length, b the width and h the height )
l = h = 4 × =
b = 3 × = 1, thus
V = × 1 × = ft³
-10x^2 +9+8x^2-5x+7=-2x^2-5x+16
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x-intercept(s):
( 7 , 0 ) , (-1,0)
y-intercept(s):
(0,-7)