Answer:
Step-by-step explanation:
The circumference of a circle = 2*pi * r
so 16 pi yards = 2 * pi * r
Divide both sides by 2
16 pi/2 = 2*pi * r /2
8*pi = pi * r
Divide both sides by pi
8 * pi / pi = pi * r / pi
r = 8
====================
Surface Area = 4 pi * r^2
r = 8
Surface Area = 4 * pi * 64
Surface Area = 256 * pi
Answer:
it goes up by 3 every time hope it helped <3
Answer:
100=50
Step-by-step explanation:
it is the last one
Answer:
30x -12
Step-by-step explanation:
the product rule is f(x)g'(x) + g(x)f'(x)
in this case f(x) = 3x-3 and g(x) = 5x+1. So we can just plug in we are going to find the derivative of each here.
f'(x) = 3 g'(x) = 5 Let me know if you don't know how I found the derivative of each.
Now we plug in.
f(x)g'(x) + g(x)f'(x)
(3x-3)5 + (5x+1)3
15x - 15 + 15x + 3
30x -12
You can further factor it but I'm gonna leave it like this.