Use the fundamental identities and appropriate algebraic operations to simplify the expression.
+ cos x sec x
A. cot2 x
B. csc2 x
C. csc x
D. sec2 x
Answer: B
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An objective function and a system of linear inequalities representing constraints are given. Graph the system of inequalities representing the constraints. Find the value of the objective function at each corner of the graphed region. Use these values to determine the maximum value of the objective function and the values of x and y for which the maximum occurs.Objective Functionz = 9x - 18yConstraints0 ? x ? 5 0 ? y ? 8 4x + 5y ? 30 4x + 3y ? 20
A. Maximum: -78.75; at (1.25, 5) B. Maximum: 0; at (0, 0) C. Maximum: 45; at (5, 0) D. Maximum: -108; at (0, 6)
An empty lot is 500 ft by 1,200 ft. How many feet would you save by walking diagonally across the lot instead of walking the length and width? ?
A. 0 ft B. 500 ft C. 400 ft D. 1,700 ft E. 609 ft
Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of hydrogen chloride dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table and graph as a representation of this relationship.
Is the slope positive, negative, zero, or undefined?
A. Zero B. Negative C. Positive D. Undefined
Sketch the graph requested from the graph of a rational function y = f(x) shown below.y = -f(x)
A. 
B. 
C. 
D. 