Answer:
Step-by-step explanation:
the information we have is:
- the radius of the circle in the base:
(u for units)
- and the height of the cone:
to find the volume we need the formula for the volume of a cone:
where r is the radius and h is the height.
Substituting the known values to find the volume:
the volume in terms of 
is 
and if we substitute the value of pi: 
we get:
1\ x-5=2 7
2\ 6+x=9 3
3\ 10=4+x 6
4\ 1/2(x-2)=3 2
5\ 3x=5+x 2 1/2
6\ 2x+4=6 1
7\ 8=2x-5 6 1/2
8\ x+3/2=7 5 1/2
9\ x+4=10 6
10\ 9=5x-3x 4 1/2
11\ 12=3x-4 5 1/3
12\ 2(x+1)=12 5
13\ 2x-3/2x=2 1
Answer:
(2, -6)
Step-by-step explanation:
Because each equation is equal to y, you can plug the y equal to each other. Because one y is equal to -2x-2 and the other is 7x-20, you can set them equal to each other. So you should have
-2x - 2 = 7x - 20
The next step is to solve for x, which mean that x is 2, then plug 2 into one of the original equations ( it doesn't matter which one) and solve for y, and when you do that, you will get -6
The newspaper have 2000 readers
Answer:
D. (-5, -4)
Step-by-step explanation:
