If x = 8, what’s the value of y in the equation:y = (x2 ÷ 4) – 2?
Answer(s): A
y = (x2 ÷ 4) − 2 y = (82 ÷ 4) − 2y = (64 ÷ 4) − 2y = 16 − 2 = 14
The cube of 5 is ________________.
The cube of 5 = 5 × 5 × 5 = 125.
2.5 × 33 = ______________.
Answer(s): C
2.5 × 33= 2.5 (3 × 3 × 3) = 2.5 × 27 = 67.50.
The fourth root of 16 is _____________.
Answer(s): D
24 = 16; the fourth root of 16 is 2.
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