Answer:
50.24 yd^2
Step-by-step explanation:
The area of a circle can be found using:

First, we need to find the radius. We have the diameter. The diameter is twice the radius, or
d=2r
We know that the diameter is 8, so we can substitute 8 in for d
8=2r
Since we are trying to find r, we need to get r by itself. To do this, divide both sides by 2.
8/2=2r/2
4=r
Now we know the radius, and can substitute 4 in for r. Also, we can substitute 3.14 in for pi.

a=3.14*4^2
Solve the exponent
a=3.14*16
Multiply
a=50.24
The area is 50.24 yards^2
Answer:
Move
√
x
+5 to the left side of the equation by subtracting it from both sides.
√
x
2
+
2
x
−
25
−
√
x
+
5=
0
Graph each side of the equation. The solution is the x-value of the point of intersection.
<u><em>x
=
5</em></u>
Hope this helped!! :)
K12 i just took the test and the answer is very simple the convert it to a decimal but in simplest form and the answer is 0
--
1
Ratio problem
1 cm = 120 km
------- = --------
x 463
120x = 463
x = 23.15 = 23.2
Answer:
25 students
Step-by-step explanation:
.8x = 20
x = 25 students