Answer:
8pi
Step-by-step explanation:
circumference of the circle=2 pi r(radius)
=2pi×d(diameter)/2
=2 × pi × 8/2
=8 pi cm
Answer:
0
Step-by-step explanation:
(6-6)/(1-2)=0
Answer:
X = 12
Step-by-step explanation:
Basically, just start with 11 and do all of the steps backwards, so multiply 11 by 5, which is 55, then add 2, 57. divide by 3, which is 19, then subtract 7, and you'll get the original number, 12.
Answer:
10x=50+6x more than 10
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Combination for the school government requires:</u>
- 5 out of 8 seniors = 8! / 3!5! = 6*7*8/2*3 = 7*8 = 56
- 4 out of 9 juniors = 9! / 4!5! = 6*7*8*9/2*3*4= 7*2*9 = 126
- 3 out of 12 sophomores = 12! / 3!9! = 10*11*12/2*3 = 10*11*2 = 220
- 2 out of 7 fishermen = 7! / 2!5! = 6*7/2 = 21
<u>So number of total ways is:</u>
