Question

Which of the following is equal to 4? OA. 364 OB. 3216 OC. 3,125 OD. 3127

Answer 1

Answer

Option A is correct.

∛64 = 4.

Explanation

We need which of the options is equal to 4.

The sign (∛) means cube root.

∛64 = 4

∛216 = 6

∛125 = 5

∛27 = 3

Hence, Option A is correct.

(8 × 10⁻⁴) × 0.0008

But 0.0008 = (8 × 10⁻⁴)

So,

(8 × 10⁻⁴) × 0.0008

= (8 × 10⁻⁴) × (8 × 10⁻⁴)

= 64 × 10⁻⁸

= (6.4 × 10⁻⁷)

Option A is correct!