Answer:
C
Step-by-step explanation:
- V=1/3(3.14)(r)^2(h)
- V=1/3(3.14)(3)^2(19)
- V=57×3.14
- v=179.07unit 3
<h2>
Answer:</h2>
By Substitution Method
<h2>
Step-by-step explanation:</h2>
Solve by Substitution :
We have two equations
y = 5x ---------------> Equation 1
y = 2x - 15 ------------> Equation 2
y= 2x - 15 and y= 5x
So Put the value of y in Equ 2
(5x) - 2x = -15
3x = -15
Solve equation [1] for the variable x
3x = - 15
x = - 5
Now
y = 5x
x = -5
Use the x value to solve for y
y = 5(-5) = -25
Solution :
{y,x} = {-25,-5}
So y= -25 and x= -5
Answer:
3x - 2y = -1
Just so you know, this equation is of a line on a graph. It is in standard form.
Ax+By=C, A and B cannot equal zero and A is greater than zero.
A=3
B=-2
C=-1
As need coordinates for x and y.
Let's make this easy, and begin with x=0
[(3)(0)]-[2y]=-1
-2y=-1
Let's divide both sides by -2 to isolate y...
(-2y)/-2=-1/-2
y=1/2
(0,1/2)
y=0
3x - 2y = -1
[3x]-[(2)(0)]=-1
3x=-1
(3x)/3=-1/3
x=-1/3
(-1/3,0)
For the third, how about x=1...
3x - 2y = -1
[(3)(1)]-2y=-1
3-2y=-1
Let's subtract 3 from both sides...
-3+3-2y=-1-3
-2y=-4
y=2
(1,2)
Step-by-step explanation:
Answer:
you can't sorry
Step-by-step explanation:
ycucycycufycycycyc