Answer:
C or A
Step-by-step explanation:
Answer:
Approximately 50.26
Step-by-step explanation:
To find circumference you have to do 2pi x r. We know that the radius of a diameter of 16 is 8, so we'll do 2pi x 8, which is approximately <u>50.26.</u>
Answer:
99
Step-by-step explanation:
5x^2 -4x -9
5(-2)^2 -4(-2) -9
-10^2 +8 -9
100-1
99
3x - 4y = 12 ----- (1)
x + 4y = 20 ------ (2)
equation (2) x 3:
3x + 12y = 60 ---(2a)
(2a) - (1):
12y - (-4y) = 60 - 12
12y + 4y = 48
16y = 48
y = 3 ---- sub into equation (2)
x + 4(3) = 20
x + 12 = 20
x = 8
Ans: x = 8 and y = 3 (True)
Answer:
I think it is C
Step-by-step explanation:
im sorry if i am wrong