Question

1. ernie is planning to buy a computer and his friend advised him to get one with a ram size of 2^9 megabytes. which is equivalent to 2^9 megabytes? 81 megabytes 18 megabytes 256 megabytes 512 megabytes

Explanation:

Step1: Recall exponent - meaning

The exponent $a^n$ means multiplying $a$ by itself $n$ times. Here $a = 2$ and $n=9$.

Step2: Calculate $2^9$

$2^9=2\times2\times2\times2\times2\times2\times2\times2\times2 = 512$.

Answer:

512 megabytes