Assume that 0 < ? < ?/2. Find an expression for the indicated trigonometric function.Let x = 5 tan ? in 
. Find sec ?.
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Suppose the sales of a particular brand of appliance satisfy the relationship y = 100x + 2100, where y represents the number of sales in year x, with x = 0 corresponding to 1982. Find the number of sales in 
.
A. 3600 sales B. 7200 sales C. 7100 sales D. 3500 sales
Solve the problem.Select the equation that describes the graph shown.
A. y = (x - 2)2 B. y = (x + 2)2 C. y = (x - 2)2 + 2 D. y = x2 - 2
Convert the equation to the standard form for a parabola by completing the square on x or y as appropriate.x2 + 2x - 7y + 36 = 0
A. (x - 1)2 = 7(y - 5) B. (x + 1)2 = 7(y - 5) C. (x + 1)2 = 7(y + 5) D. (x - 1)2 = -7(y - 5)
Find all of the rational zeros of the polynomial.
?
?
Then find the irrational zeros, if any. Whenever appropriate, use the rational zeros theorem, the upper and lower bounds theorem, Descartes' rule of signs, the quadratic formula, or other factoring techniques.
What will be an ideal response?