Answer:
Step-by-step explanation:

Convert x^0.5 to square root:

Square both sides:

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- Hope it helps!
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Answer:
Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees.
Step-by-step explanation:
Step-by-step explanation:
Before we answer, the area of a Circle given it radius is

The area of a circle given it diameter is

So let answers question 1-4.
1. The area is

2. The area is

3.

4.

For the 5th problem, circumference is

where d is the diameter and

where r is the radius.
A circumference of 100 m means the radius is 50 because


So this means the area is

Answer:
x=19, DE=84, EF=36
Step-by-step explanation:
Since the total value of DF is 120, DE and EF must add up to 120. Therefore:
4x+8+2x-2=120
Combine like terms:
6x+6=120
Divide both sides by 6:
x+1=20
Subtract 1 from both sides:
x=19
This means that DE is 4(19)+8=84, and EF is 2(19)-2=36.
Hope this helps!