Assessment and Learning in Knowledge Spaces (ALEKS) Basic Math Placement Practice Test

If (7/2)^-2 can be rewritten as (2/7)^2, which of the following represents squaring the fraction?

1. (2^2)/(7^2)

2. 2+7

3. (2-7)^2

4. (2×7)^2

The correct answer is: (2^2)/(7^2)

When you square a fraction, you square both the numerator and the denominator separately. In this case, when you have (2/7) and you want to square it, you would calculate (2/7)^2. This results in squaring the numerator (2) and squaring the denominator (7), which can be expressed as (2^2)/(7^2). So, the correct answer illustrates this process perfectly, showing that when the fraction 2/7 is squared, it becomes (2^2)/(7^2). This is the correct representation of squaring the fraction. The other choices, while potentially interesting, do not reflect the action of squaring both parts of the fraction as required.