Factor and simplify the expression.sec4x - 2 sec2x tan2x + tan4x
A. sec2x (1 + tan2x)
B. 2
C. sec2x + tan2x
D. 1
Answer: D
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Solve the problem.The seats in the lecture hall are arranged in 13 rows with 7 seats in each row. Find how many seats are in this room.
A. 98 seats B. 91 seats C. 84 seats D. 101 seats
Find the intercepts for the graph of the equation.x + y = 0
A. (-4, 0) (4, 0) B. (0, 0) (0, 0) C. (0, 4) (-4, 0) D. (0, -4) (0, 4)
Express the profit as a function of the price p.
The demand x and price p (in dollars) for a certain product are related by x = f(p) = 12,000 – 300p 0 ? p ? 40. The revenue (in dollars) from the sale of x units is given by R(x) = 69x – 0.004x2 and the cost (in dollars) of producing x units is given by C(x) = 5,300 + 4x.
Decide whether or not the functions are inverses of each other.
A. No B. Yes