x+y=5
-x -x
Equals:
y=-x+5
Now you have:
y=-x+5
x-y=1
Insert -x+5 into y
x-x+5=1
Combine like terms
2x+5=1
Subtract 5.
2x=-4
Divide 2.
Answer: x=-2
Answer:
c
Step-by-step explanation:
volume of cylinder = πr^2h
r = 6.5
h = 13+13+13 = 39
cylinder volume = 1647.75π cm^3
volume of one sphere = 4/3 π r^3
= 366.16π cm^3
space not occupied by tennis balls = 1647.75π-3(366.16π)=549.25π cm^3
Looks like it should be D since they spent 0.08 on tickets and get 1.92. Then shirts are $55 so we subtract this from the profit.
Answer:
y=6x-2 is perpendicular to the 6y=-x+7
y=6x+1 is parallel to the y=6x-2
Step-by-step explanation:
if product of two lines gradient is -1 than lines are perpendicular
gr y=6x-2
y=mx+c m=gradient
1)m=6
2)m=-1/6
3)m=6
if gradients of 2 lines are equal they are paralel
