Question Detail

What is the smallest number by which 3600 be divided to make it a perfect cube.

Answer: Option A

Explanation:

$\begin{aligned} 3600 = 2^3 \times 5^2 \times 3^2 \times 2 \end{aligned}$
To make it a perfect cube it must be divided by
$\begin{aligned} 5^2 \times 3^2 \times 2 = 450 \end{aligned}$

1. Evaluate
$\begin{aligned} \sqrt{53824} \end{aligned}$

Answer: Option B

2. $\begin{aligned} \sqrt{\frac{0.081 * 0.484 }{0.0064 * 6.25}} \end{aligned}$

0.66
0.77
0.88
0.99

Answer: Option D

3. What is the square root of 0.16

0.4
0.04
0.004
4

Answer: Option A

Explanation:

as .4 * .4 = 0.16

4. $\begin{aligned} (\frac{\sqrt{625}}{11} \times \frac{14}{\sqrt{25}} \times \frac{11}{\sqrt{196}}) \end{aligned}$

Answer: Option C

Explanation:

$\begin{aligned} = (\frac{25}{11} \times \frac{14}{5} \times \frac{11}{14}) \end{aligned}$

$\begin{aligned} = 5 \end{aligned}$

5. Evaluate
$\begin{aligned} \sqrt{6084} \end{aligned}$

Answer: Option C

Anyela 12 years ago

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