Write a general term an for the sequence. Assume that n begins with 1.-2, 3, 8, 13, 18, . . .
A. an = 5n - 8
B. an = 5n - 7
C. an = 7n - 7
D. an = 5n + 7
Answer: B
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Solve the problem.Jane has invited 50 people to a party and expects 
to attend. Of those invited who attend, 
will bring a date. Express the expected number of guests n as an inequality and graph the values of n.
n = number of guests
A. 24 ? n ? 40
n = number of guests
B. 42 ? n ? 60
n = number of guests
C. 20 ? n ? 25
n = number of guests
D. 30 ? n ? 40
n = number of guests
Decide if the situation is a permutation or a combination and then answer the question.There are 8 women running in a race. How many first, second, and third place possibilities can occur?
A. Combination; 56 B. Permutation; 336 C. Permutation; 24 D. Combination; 512
Simplify the expression.
+ sec x cos x
A. 1 B. sec2 x C. tan2 x D. csc2 x
Use the quadratic formula to solve the given equation.x2 = 12x + 7
A. 6 ± 
B. 12 ± 
C. 6 ± 
D. -6 ± 