When adding √9 and -7, which type of number is the sum?
A.irrrational
B.whole number
C.radical
D.integer
My answer is A.
CAN you check please @Ms.Sue
@steve so it would be a integer
no, it would be an integer :-)
To find the sum of √9 and -7, let's break it down step by step.
First, let's simplify √9. The square root of 9 is 3 because 3 multiplied by itself (3 * 3) equals 9.
So, we can rewrite the expression as 3 + (-7).
Now we can add these two numbers together. 3 + (-7) equals -4.
The sum of √9 and -7 is -4.
To determine the type of number the sum is, we need to classify it.
An irrational number is a real number that cannot be expressed as a fraction or a decimal that terminates or repeats. However, in this case, our sum is -4, which is a rational number because it can be expressed as a fraction (-4/1) and can be written as a terminating decimal (-4.0).
A whole number is a positive integer or zero, but -4 is a negative integer.
A radical is a mathematical symbol (√) used to represent a root of a number. -4 is not a radical since there is no square root or radical symbol involved.
An integer is a whole number that can be positive, negative, or zero. -4 is indeed an integer.
Therefore, the correct answer is D. The sum of √9 and -7 is an integer.
sorry; √9 is a rational number. In fact, it is 3, an integer.
Most of the time, a √ is irrational, but not always.