Use the fundamental identities to find the value of the trigonometric function.Find tan ? if sec ? = 
and sin ? < 0.
A. - 2
B. - 
C. 2
D. - 
Answer: B
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Classify as equivalent inequalities, equivalent equations, equivalent expressions, or not equivalent.
g + 
= 5, 3g + 1 = 40
A. Equivalent inequalities B. Not equivalent C. Equivalent equations D. Equivalent expressions
Solve the problem.A moving firm charges a flat fee of $45 plus $40 per hour. Let y be the cost in dollars of using the moving firm for x hours. Find the slope-intercept form of the equation.
A. y = 45x + 40 B. y = 40x + 45 C. y = 40x - 45 D. y = 45x - 40
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
The area of the triangular swimming pool shown in the illustration is doubled by adding a rectangular wading pool. Find the width of the pool (x).
(The area of a triangle = 
, and the area of a rectangle = lw).
?
?
?
A. 15 feet
B. 24 feet
C. 12 feet
D. 11 feet
E. 13 feet