Answer:
At 10 minutes the phone call costs the same for both companies. Hopefully this was helpful. :)
Step-by-step explanation:
Create equation:
f(x)=3x+35
f(x)=2x+45
x=minutes
Solve:
Company A: Company B:
0 35 45
1 38 47
2 41 49
3 44 51
4 47 53
5 50 55
6 53 57
7 56 59
8 59 61
9 62 63
10 65 65
The coordinates of the vertices of the image will be:
P'=(-3,-8)
Q'=(-6,4)
R'=(1,-1)
If you reflect a point P=(x,y) across the x-axis, the coordinates of the image will be P'=(x,-y), then:
P=(-3,8)=(xp,yp)→xp=-3, yp=8→P'=(xp,-yp)→P'=(-3,-8)
Q=(-6,-4)=(xq,yq)→xq=-6, yq=-4→Q'=(xq,-yq)=(-6,-(-4))→Q'=(-6,4)
R=(1,1)=(xr,yr)→xr=1, yr=1→R'=(xr,-yr)→R'=(1,-1)
Volume of a cylinder is .
V=115.45 approximation.
