Answer:
B. r=8
Step-by-step explanation:
r=c/2pi
We are given c = 16 pi
r = 16pi / 2pi
The pi on the top and bottom cancel
r = 16/2
r =8
For this use order of operations, you multiply the numbers and you calculate.
When you calculated everything you should be left with 2 - 12 - 18, and combine like terms.
Your answer should be -28
Answer: 6 trombones
Step-by-step explanation:
We can set up a proportion.
Let x be the number of trombones there are.

We can cross multiply:
4*9 = 6x
6x = 36
Divide both sides by 6:
x = 6
To do this, multiply each of the four elements in matrix D by -1/2 or -0.5:
| 9 8 |
| -7 -4 |
Answer:
Step-by-step explanation: 29% I think I might be wrong