Use trigonometric identities to solve each equation in the interval [0, 2?]4 sin2 x = 4 cos x + 1
A. 
B. 
C. ?
D. 
Answer: D
Mathematics
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Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.5.56, 8.38, 11.20, 14.02, . . .
A. no B. yes, 2.82 C. yes, 2.12 D. yes, 8.46
Mathematics
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."5x3 + 5x2y - 100xy2
A. (x - 4y)(5x2 + 25xy) B. 5x(x + 4y)(x - 5y) C. prime D. 5x(x - 4y)(x + 5y)
Mathematics
Solve the equation in the interval [0,2?). cos² x = cos x + 6
What will be an ideal response?
Mathematics
Factor completely. If a polynomial cannot be factored, say it is prime.5x4 + 7x2 - 24
A. (5x2 + 8)(x2 - 3) B. prime C. (5x2 + 3)(x2 - 8) D. (5x2 - 8)(x2 + 3)
Mathematics