Answer:
x = (+ - ) 9
Step-by-step explanation:
x^2 = 81
u know how u can sometimes cancel something out by doing the opposite.
This is one of those times as well. the opposite of ^2 = square root.
so if we take the square root of both sides, this will cancel out the^2 on the left side.
sqrt (x^2) = sqrt(81)
x = (+-) 9.....thats a positive and a negative sign...because the sqrt of 81 is both 9 and -9.
B. 200.96 in. The area of the pizza with a 16" diameter (8" radius) is 201.06.
Answer:
$4.85
Step-by-step explanation:
Add the numbers:
2.95
1.05
<u>0.85</u>
4.85
First subtract 4 then divide 2 so u can isolate x
