Step-by-step explanation:
n2+5=21
n2 =21-5
n2 = 16
n =16/2=8
Hello :D
Answer:

The answer should have a negative sign.
Step-by-step explanation:
First, you do is divide by 17 from both sides of an equation.

Then, you simplify and solve to find the answer.

, which is our answer.
I hope this helps you!
Have a great day! :D
Answer:
1.)
132 cm - 11 cm = 121 cm
So let the hypotenuse be x and the other leg be (121 - x).
11^2 + (121 - x)^2 = x^2
121 + 121^2 - 121(2)x = 0
x = 1/2 + 121/2 = 61 cm
Step-by-step explanation: not sure if this is right or not
Answer:
y = -2
Step-by-step explanation: