Question

When adding √9 and -7, which type of number is the sum?

A. Irrational
B. Whole Number
C. Radical
D. Integer
Thanks!

Answer 1

We are given numbers √9 and -7.

Square root 9 is a perfect square.

Square root 9 = 3.

So, if we add square root 9 and -7, we would get

√9 + -7 = 3 -7 = -4.

So, we got a negative whole number.

A negative or positive whole number is called an integer.

So, it's an integer.

Therefore, correct option is D. Integer.