Question

9y√(3) and 9√(3y) are like radicals ?
√9= is a raditional #?
√-1 is not a real #?
The Pythagorean Theorem only refers to right triangles.

Answer 1

well the sqrt of 9 is three
you cannot square root negative numbers without using an imagenary number so it is not a real number

Answer 2

is the first one like radicals?

Answer 3

i do not believe so, because the y in one is being square rooted and in the other it is not.

Answer 4

3√(5) is the symbol of the square root of 5
√ab=√a*√b? is this correct ?

Answer 5

√a-b = √a-√b

Answer 6

are these correct ?

Answer 7

i am pretty positive they are but you might want to get a second opinion.

Answer 8

but 9 is a rational #?

Answer 9

yes because nine can be sqrted and you get 3.