Can you help me find the length of YB

39.62323

Step-by-step explanation:

You can use the Pythagorean Theorem to find the length of the hypotenuse of a right triangle if you know the length of the triangle's other two sides, called the legs. Put another way, if you know the lengths of a and b, you can find c.

c=a2+b2=392+72≈39.62323

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb