Answer:
d
Step-by-step explanation:
<span>suppose the speed = x mi/h
Overspeed cost = 115 + x - 65 = 50 + x ....... 1
Overspeed Cost = 50 + (x -65)*10 = 10x - 600 ..........2
from [1] and [2], we get,
10x - 600 = 50 + x
10x -x = 50 +600
9x = 650
x = 72.22 mi/h
hope it helps
</span>
The line rising to the right has equation y = x + 2
and the other one has equation y = -x + 4
the lines are solid so the inequalities will be <= or >=
in both case the shading is below so the sign is <=
also x and Y values are both positive
so the answer is choice C
I believe she would need to stain 548 inches of the surface.
Excluding the top and bottom, you are left with two panels that are 10 by 7.4, and two panels that are10 by 20, so
10•7.4= 74•2 =148
10•20= 200•2 =400
148 + 400= 548
Please correct me if I am wrong, have a good day!
