Question

Which choice is equivalent to the product below?
v2.58
O A. 4./20
O B. 4/5
O C. 16.15
O D. 8/10

Answer 1

Answer:  Choice B)  $\boldsymbol{4\sqrt{5}}$

Work Shown:

$\sqrt{2}*\sqrt{5}*\sqrt{8}\\\\\sqrt{2*5*8}\\\\\sqrt{80}\\\\\sqrt{16*5}\\\\\sqrt{16}*\sqrt{5}\\\\\boldsymbol{4\sqrt{5}}$

The rule I'm using is $\sqrt{x*y} = \sqrt{x}*\sqrt{y}$

Answer 2

Answer:

Option B

Step-by-step explanation:

√2 × √5 × √8

√2 × √5 × 2√2 [√8 = 2√2]

(√2 × √2) × √5 × 2

2 × √5 × 2

4√5

Option B is correct