Answer:
A. Every minute, 2/3 of a gallon is drained, so the rate of change would be -2/3
B. It would take 7.5 minutes to drain the tank
Answer:
51.2 dollars
Step-by-step explanation:
you have to multiply 6.40 by 8
Answer:
I believe the answer is 70! Sorry if i'm wrong. Bai
Slope formula (y2-y1)/(x2-x1)
(7-5)/(2-1) slope is 2
then plug in a coordinate point into the equation
y=2x+b
7=2(2)+b
b=3
therefore the equation is
y=2x+3
Since the rate is constant, the growth of the height of the helicopter follows a linear pattern. The helicopter has an initial quota of 40ft, so that would be the constant term. The linear terms's coefficient is the rate of growth, so 21 ft/s. So, if is the number of seconds passed from when the observation started, we have
Which means that, if , the height is