Answer:
C) -9.6
Step-by-step explanation:
First you have to find the angle B (check attachment)
Then you can find the last angle inside the triangle, which I'll call C
Now you can find angle A
Answer: Choice A
The volume expression is 4/3 times pi times (3x)^3
===================================================
The volume of a sphere is found through the formula
V = (4/3)*pi*r^3
so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3
In this case, the radius is r = 3x because this is half of the diameter d = 6x
We simply replace the r with 3x in that formula above
V = (4/3)*pi*r^3
V = (4/3)*pi*( r )^3
V = (4/3)*pi*(3x)^3 ... replace r with 3x
Answer:
16
Step-by-step explanation:
plug in -20 for x to get |-20+4|
that is |-16| but the absolute value of it is 16
Answer:17/2pi
Explained:
Just writing longer so I don’t have to go into details. If this is on khan academy you don’t have to show your work!
