Formula to find circumference is ;

Since the given circumference is 30 pi then,
30 pi = 2 pi radius.
30 = 2 radius
radius = 30/2
radius = 15
The radius is 15 for a circle tha has circumference of 30 pi
Answer:
Day 1
4 times
8 mins
1 time
0 times
1 time
0 times ( I never use it)
Day 2
2 times
5.30 mins
0 times
2 times
0 times
0 times
Day 3
5 times
0 mins
0 times
2 times
1 time
0 times
Step-by-step explanation:
Hope it helped you
X=-1
Step-by-step explanation:
3 • (x + 2) - (1 - 2x) = 0
5x + 5 = 5 • (x + 1)
5 • (x + 1) = 0
5 = 0
x+1 = 0
x = -1
At x=2, y=4
At x=4, y=16
So the total change in y from x=2 to x=4 is 16-4=12
And since average rate of change = total change in y divided by total change in x within the same period, therefore the answer is 12/2 = 6
Hope that helps. Let me know if you have any questions.
C. -14x
Just multiply 3 with -5 and get -14x. And then add a positive x to get -14x