Solve the problem.A game involves choosing 7 numbers from the numbers 1 through 13. In how many ways can this be done?
A. 1724
B. 8,648,640
C. 1696
D. 1716
Answer: D
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Solve the problem.The function A = A0e-0.00693x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 800 pounds of the material are initially put into the vault, how many pounds will be left after 160 years?
A. 519 pounds B. 250 pounds C. 640 pounds D. 264 pounds
Solve the problem.The cost of a computer system increases with increased processor speeds. The cost C of a system as a function of processor speed is estimated as C = 5S2 - 3S + 1400, where S is the processor speed in MHz. Find the processor speed for which cost is at a minimum.
A. 0.2 MHz B. 0.3 MHz C. 2.4 MHz D. 6 MHz
Find the limit.
(x + 1)
A. 7 B. -5 C. 5 D. Does not exist
Without using a calculator, give the exact trigonometric function value with rational denominator.cot 45°
A. 1
B. 
C. 
D. 