Solve the problem.A(x) = -0.015x3 + 1.05x gives the alcohol level in an average person's bloodstream x hours after drinking 8 oz of 100-proof whiskey. If the level exceeds 1.5 units, a person is legally drunk. Find the rate of change of alcohol level with respect to time.
A. 
= -0.045x3 + 1.05
B. 
= -0.045x2 + 1.05
C. 
= -0.045x2 + 1.05x
D. 
= -0.015x2 + 1.05
Answer: B
You might also like to view...
Find the median for the given sample data.The weight in pounds of ten randomly-selected football players are:
Find the median of these weights.
A. 250 lb B. 248 lb C. 245 lb D. 252 lb
Solve the problem. Round to the nearest cent unless otherwise noted.A steel-belted radial tire that sells for $83.99 is on sale for 25% off the regular price. Find the amount saved by buying 4 tires on sale.
A. $21.00 B. $83.99 C. $88.19 D. $82.99
Model the problem with a linear equation.The average value of a certain type of automobile was $14,700 in 2008 and depreciated to $7020 in 2012. Let y be the average value of the automobile in the year x, where x = 0 represents 2008. Write a linear equation that models the value of the automobile in terms of the year x.
A. y = -1920x - 660
B. y = -1920x + 14,700
C. y = -1920x + 7020
D. y = - 
x - 7020
Multiply.3(-9)
A. -27 B. -127 C. -30 D. -270