Answer:
The answer for the value of x is, x=20
Answer:
28.25 square units
Step-by-step explanation:
A circumference of the circle is

where r is the radius of the circle.
So,

The area of the circle is

Substitute the value of the radius:
Answer:
Area of triangle = ½ × base × height
Step-by-step explanation:
(A = ½ × b × h)
This formula is mainly used to find the area of the triangle.
Answer:
a. x<7 and x>-7
Step-by-step explanation:
√x²<√49
-7<x<7 hope this helps