Answer:
170.72
Step-by-step explanation:
to find the mean, we must add al the numbers and divide it by n
that is,
164,175,178,166,167,145,176,150,174,162,180,156,173,158,182,184,160,172,186,168,195,169,171,187,170 we have to add al these numbers and divide it by 25
sum- 4628 divided by 25
=170.72
The answer is B.
Pentagons have a sum of 540°
540 - (115 + 115 + 90 + 90)
540 - 410
130
0.96
3*10^4
8.9/3.3 is about 3. 10^8/10^4 is 10^4.
Thus, the answer is about 3*10^4.
5040