Which of the following (1, 16, 27, 81) is not a square number?
This answer is pretty simple. you see (5,-8) and (20,y). well the 20 is 4 times the 5 on the x value so multiply the y value by 4 to get your answer which Y=-32 in the 2nd corrdenants.
Assuming you meant square root of 90 it would be
90 equals 3 times the square root of 10
√90 = 3√10
This is only my opinion. I could be wrong.
My guess is:
Somebody else used that book before you, maybe last year or
the year before, and it was somebody who didn't mind writing
in his book.
One day he didn't have time to write down the homework in his
assignment notebook, so he just circled the homework problems
in his textbook.
Answer:
Opinion B
Step-by-step explanation:
hope that will help you
