A water tank is created by revolving the graph about the y-axis, with the bottom of the tank at y=1. The volume of the is given by where h is the height of the water in the tank. Initially the tank is empty, but water begins to flow into the tank at a rate of 1.5 cubic feet per minute. Determine how fast the level of water is rising when the water is 2 feet deep.

a. 0.95 ft/min
b. 1.91 ft/min
c. 3.0 ft/min
d. 6 ft/min
e. 13.5 ft/min

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

what is the your question?

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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