1) Circumference = π*diameter
= 3.14*10 = 31.4 inches
2) 130% of 74 = 1.3 x 74
= 96.2
Answer: Surface Area = 16in.
Step-by-step explanation:
So we need to find the area of each side and add them up.
First we find the area of one of the triangular sides: 2*3/2 = 3
Then we multiply it by 4 to accommodate the 4 sides that are the same size: 12
Then we do 2*2 = 4 for the base. We then add those up.
4 + 12 = 16
Use photo math!! It is a really helpful app
|-6b| <= 60
b <= 60/6
b<= 10
and
b>= 60/-6
b>= -10
answer:
b>= - 10 and b<= 10
or
-10 <= b <= 10
