Question

Two-fifths of the square of a number j

Answer 1

Answer:

$\frac{2}{5}j^{2}$

Step-by-step explanation:

Let

j ------> the number

we know that

The square of a number is equal to multiply the number by itself

so

The square of j is

$j*j=j^{2}$

so

Two-fifths of the square of a number j is the same that multiply the fraction 2/5 by the square of j

$\frac{2}{5}j^{2}$