Answer:
(x + 2)² + (y - 5)² = 7²
Step-by-step explanation:
Incomplete question. I believe you meant, "write the equation of the circle with center at (-2, 5) and radius 7.
That would be:
(x + 2)² + (y - 5)² = 7²
[4^(5/4+1/4)]^1/2
= --------------------------
4^(1/2 * 1/2)
[4^(6/4)]^1/2
= ----------------------
4^(1/4)
4^(3/2 * 1/2)
= ----------------------
4^(1/4)
4^(3/4)
= ---------------
4^(1/4)
= 4^(3/4 - 1/4)
= 4^2/4
= 4^1/2
= √4
= 2
Answer is C. 2
Answer:
x = 4
Step-by-step explanation:
You want x when ...
g(x) = f(2)
2x -3 = 3(2) -1
2x = 8 . . . . . . . . add 3, simplify
x = 4 . . . . . . . . . divide by 2
Answer: 5.46 billion
=================================================
Explanation:
If you mean the world's population, then there are roughly 7.8 billion people on earth.
70% of that is 0.70*7.8 = 5.46 billion
The number 5.46 billion can be written as 5,460,000,000
This number is read out as "5 billion, 460 million"
