The sequence is defined recursively. Write the first four terms.a1 = 2, a2 = 5 and an = an-2 - 3an-1 for n ? 3
A. 2, 5, 1, 2
B. 2, 5, 17, -46
C. 2, 5, -13, 44
D. 2, 5, -1, -16
Answer: C
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Express the trigonometric function in terms of the same function of a positive acute angle.sin 261°
A. sin 81° B. -sin 81° C. -sin 36° D. sin 36°
Solve. Round to two decimal places unless otherwise noted.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for 
A. $378.79 B. $1562.50 C. $1437.50 D. $12.50
Solve the problem.If a group of 284 people is to be split into equal-sized subgroups of at least two people and no more than 30 people, what are the possible group sizes?
A. 2 and 4 B. 2, 3, and 4 C. 2 and 28 D. 3 and 4
Solve for the indicated variable.A = 
h(B + b), for b
A. b = 
B. b = 
C. b = 2A - Bh
D. b = 