Verify the identity.cot x sec4 x = cot x + 2 tan x + tan3 x
What will be an ideal response?
cot x sec4 x = cot x (1 + tan 2 x)2 = cot x (1 + 2 tan2 x + tan4 x) = cot x + 2 tan x + tan3 x.
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Find the slope of the line. Interpret the slope in terms of rise and run.
A. 1; The graph rises 1 unit for each unit of run. B. -1; The graph falls 1 unit for each unit of run. C. 0; The rise always equals zero. D. Undefined; The run always equals zero.
All references are to the figure below. The distance between A and P is x, and the distance between A and C is y. 
Assuming that A = 37° and r = 11, find B and x.
A. B = 53°, x ? 7 B. B = 53°, x ? 2.8 C. B = 53°, x ? 3 D. B = 53°, x ? 7.3
Solve the problem using the information given in the table and the weighted-average inventory method. Round to the nearest cent.Calculate the cost of goods sold. 
A. $10,206.53 B. $2053.57 C. $4076.48 D. $6130.05
Find the range of the set of numbers.5, 0, 14, 16, 13
A. 13 B. 29 C. 10 D. 16