Question

1. which of the expressions below is equivalent to 5³?

$\frac{1}{5}+\frac{1}{5}+\frac{1}{5}=\frac{3}{5}$
$5\times5\times5 = 125$
$\frac{1}{5}cdot\frac{1}{5}cdot\frac{1}{5}=\frac{1}{125}$
$5 + 5+ 5=15$

Explanation:

Step1: Recall exponent definition

The expression $a^n$ means multiplying $a$ by itself $n$ times. For $5^3$, $a = 5$ and $n=3$, so $5^3=5\times5\times5$.

Step2: Calculate $5\times5\times5$

$5\times5 = 25$, and $25\times5=125$.

Answer:

$5\times5\times5 = 125$ (the second - option)