Hello!
By using a certain formula, a repeating number with two repeating digits will always become the number out of 99. In our case, we would get
.
To get the numerator to equal three, we divide both sides by 9.

Therefore, x=11.
I hope this helps!
Answer:

Step-by-step explanation:
r = Radius of semicircle = 
Area of semicircle is given by

The area of the semicircle is
.
Answer:
The answer is C
Explanation:
Just combine multiplied terms into a single fraction
Answer:

Step-by-step explanation:
We know that tangent angle addition formula is

This is in form already. Based on the value, a is 65 and b is 35 so let just subtract that

W e know that tan 30 is

Answer:
x=2
Step-by-step explanation:
First, subtract four on both sides and then divide both sides by 2 to get x=2.
2x+4=8
<em>-4 -4</em>
2x=4
<em>÷ 2 ÷2 </em>
<u>x=2</u>