Question

Simplify the expression.

one half cubed − 4 ÷ square root of 64

negative thirty-one over sixty-four
negative three eighths
three eighths
thirty-one over sixty-four

Answer 1

negative thirty one over sixty four

Explanation:

1/2 ^3:

- Same as 1 divided by 2^3, which is 8, so 1/8

square root of 64:

- This is simply 8 or negative 8, for arithmetic square roots we will assume 8.

Plug those values in:

(1/8-4) / 8

1/8 - 4 = 1/8 - 32/8 =( -31/8)

-31/8 divided by 8 = -31/64

Answer 2

the answer should be -3/8

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