If they already have $175, they need $250 more dollars. At $8 a water bottle, they would need to sell at least 32 more bottles.
f(x)= -x^2+4 plotted vertex (0,4)
Answer:
y = 30x + 20
Step-by-step explanation:
y = mx + b
find b
b=20
find m
m=30
Answer:
t > 3 or (3,∞)
Step-by-step explanation:
See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius

and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given

, i.e.

.
The volume is then