Find the requested partial derivative.
if 
and 
A. 
B. 
C. 
D. 
Answer: C
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The concentration C, in milligrams per deciliter, of a certain drug in the bloodstream t hours after injection is given in the following table. t0123 C36.0030.2425.4021.34? A: Make a table of successive ratios to show that the concentration of the drug can be modeled by an exponential function. Round your answer to two decimal places.B: Find an exponential model for the data. Round your answer to two decimal places.C: Plot the graph of the data points along with the exponential model. Include up to 10 hours.D: According to the model, how long will it take for the drug concentration to decay to 14.00% of the initial amount? Round your answer to two decimal places.
What will be an ideal response?
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 30 hours. His apprentice takes 60 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 12 hr B. 8 hr C. 90 hr D. 20 hr
Factor by grouping.20x2 - 12xy - 25xy + 15y2
A. (20x - 5y)(x - 3y) B. (4x - 5)(5x - 3) C. (4x + 5y)(5x - 3y) D. (4x - 5y)(5x - 3y)
Graph the exponential function.y = 
x 
A. 
B. 
C. 
D. 