Evaluate this exponential expression 7 • (6+2)^2 - 3^2=
1 answer:
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Answer:
A
Step-by-step explanation:
The volume (V) of a pyramid is
V = area of base × perpendicular height (h)
area of square base = 4² = 16 and h = 4, hence
V = × 16 × 4 =
= 21
ft³