Answer:
V = 45 pi
V =141.3
Step-by-step explanation:
The volume of a right cone is given by
V = 1/3 pi r^2 h
We know the radius = 3 and the height is 15
V = 1/3 pi *(3)^2 *15
V = 45 pi
Let pi = 3.14
V= 45* 3.14
V =141.3
Either your answers forgot pi
Answer:
To solve, I need more data...
Step-by-step explanation:
Answer:
3, 12
Step-by-step explanation:
"x" is the larger number,
"y" is the smaller number.
Given
x + y = 15
x / y = 4
manipulate the equations for the problem
x / y = 4
*y *y
x = 4y
solve the system of equations by the methord of substitution:
x + y =15
4y + y = 15
5y = 15
y = 3
Subsitute back into the equations given.
x = 4y
x = 12
-11a=121. divide both by -11 and get a=-11
