13. (3/8)*q + 12 = 36
3q/8 = 24
3q = 192
q = 64
14. 3 - (3/4)n = 9
-3n/4 = 6
-3n = 24
n = -8
15. (7/9)v + 2 = 23
7v/9 = 21
7v = 189
v = 27
16. 7 + (1/8)l = -2
l/8 = -9
l = -72
17. (v/-3) + 8 = 22
v/-3 = 14
v = -42
18. 8x - 16 + 8x = 16
16x = 32
x = 2
19. 12a - 14a = 8
-2a = 8
a = -4
20. 7c - 8 - 2c = 17
5c = 25
c = 5
21. 6 = -y + 42 - 2y
-36 = -3y
y = 12
22. 16 + 8r - 4r + 4 = 24
20 + 4r = 24
4r = 4
r = 1
For this case what you must do is to determine the value of r of the given equation:
A = pi * r ^ 2.
Clearing the value of r we have:
r = root (A / pi)
Note that r has two roots:
r1: = + root (A / pi)
r2: = - root (A / pi)
In this case we must ignore the negative root.
Answer:
The formula to find r is
r = root (A / pi)
the answer is 60degree..hope it helps u
Answer: f(x)=22
Explanation: 5(5)-3= 25-3=22
We substitute the x in the first problem with five because in the second equation, x is said to be five