Solve the problem.How many different three-number "combinations" are possible on a combination lock having 22 numbers on its dial? Assume that no numbers repeat. (Combination locks are really permutation locks.)
A. 1.7556 × 105 three-number "combinations"
B. 9240 three-number "combinations"
C. 1.0534 × 106 three-number "combinations"
D. 3.5112 × 105 three-number "combinations"
Answer: B
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Solve the problem.A company predicts that sales will increase rapidly after a new product is released, with the number of units sold weekly modeled by N = 8000(0.2)0.5t, where t represents the number of weeks after the product is released. How many units per week were sold at the end of the first week of the campaign?
A. 2862 units B. 4293 units C. 5367 units D. 3578 units
State the relationship between the graphs of f(x) and g(x).f(x) = 
, g(x) = 
A. f and g are reflections of each other about the y-axis. B. g is shifted to the left 2 units relative to f, otherwise they are the same. C. f and g are reflections of each other about the x-axis. D. g is shifted to the right 2 units relative to f, otherwise they are the same.
Write the first four terms of the sequence whose general term is given.an = -3(n + 2)!
A. -18, -72, -360, -2160 B. -18, 144, -1080, 8640 C. -6, 18, -72, 360 D. -6, -36, -216, -1440