Answer:
3x^2-x
Step-by-step explanation:
1. Combine Like Terms.
2. Add/Subtract.
3. Put them together.
Answer:
-443 is the 90th term
Step-by-step explanation:
n=90th
Given: 7-5n
> 7-5(90)
> 7-450
> -443
You would use the pythagorean theorem to solve this equation: a^2 + b^2 = c^2
12^2 + b^2 = 20^2
b^2 = 16
x = 16
Volume=height times area of base
area of base=pi times r^2
volume=(h)(pi)(r^2)
diameter=2r
diameger=8
8=2r
divide 2
4=r
h=3 times r
h=3r
r=4
h=3(4)
h=12
r=4
h=12
pi=3.14
subsitute
volume=(12)(3.14)(4^2)
volume=(12)(3.14)(16)
volume=602.88 in^3