Answer:
x = ± 10
Step-by-step explanation:
Given
x² - 100 = 0 ( add 100 to both sides )
x² = 100 ( take the square root of both sides )
x = ± ← note plus or minus, hence
x = ± 10
This is an exam! You are not supposed too cheat!
>:O
Answer:volume is lengthxwidthxheight
Step-by-step explanation:
Length=3
Width=7
Height=10
3x7x10=210 inches ^3
Answer:
9
Step-by-step explanation:
By joining N to L, you will have a right angled triangle which is right angle at N. Then r^2+36=(3+x)^2. r=9/2. PQ=2r=9