Answer:
b
Step-by-step explanation:
Choice b is the only one that has the first equation properly graphed. The boundary line for that equation will have intercepts that can be found by setting the opposite variable to zero.
x-intercept = 25/2 = 12.5 (on the positive x-axis)
y-intercept = 25/5 = 5 (on the positive y-axis)
That is, the boundary line has a shallow negative slope, and is shaded below. Only graph 'b' has such a line.
Answer:
90.5
Step-by-step explanation:
Velocity is a time-derivative of displacement or the height, in this case.
At maximum height, the velocity is 0 and the height is 128.
Substitute these values into both equations above,
From the first equation,
Substitute for .
If the pool's being filled at a constant rate, then this rate is equal to the average rate, which would be
(2352 gal - 1372 gal) / (12 min - 7 min) = 980/5 gal/min = 196 gal/min
Answer: 26 years
Step-by-step explanation: