1. When adding √9 and -7, which type of number is the sum?
A.irrational
B.whole number***
C.radical
D.integer
I think it is a whole number, but I'm not sure because someone tells me it is radical but the question is √9+(-7) which equals -4 so there for i am pretty sure that the answer is B. Am i right? Thank you.
so an integer
its fine it is clearly an integer Thank you :)
whole numbers are positive
Try again.
whoops, oobleck is right
https://mathopenref.com/integer.html
so it is radical im confused one person says right one person says no
Click on that link. I was careless in my response, sorry.
Yes, integer.
You are welcome.
To find the sum of √9 and -7, let's break down each option:
A. Irrational - An irrational number cannot be expressed as a fraction and has an infinite number of non-repeating decimals. The sum of √9 and -7 is -4, which is a rational number since it can be expressed as a fraction (-4/1).
B. Whole Number - A whole number is a non-negative integer (0, 1, 2, 3, ...). The sum of √9 and -7 is -4, which is not a whole number.
C. Radical - A radical refers to the symbol (√) used to indicate a square root, cube root, etc., or the expression itself that includes a root. In this case, the question involves finding the sum of √9 (which is 3) and -7, not the radical itself.
D. Integer - An integer is a positive or negative whole number (..., -3, -2, -1, 0, 1, 2, 3, ...). The sum of √9 and -7 is -4, which is an integer.
Based on the options provided, the correct answer is D. Integer, as the sum of √9 and -7 equals -4, which is an integer.