Find the derivative.y = (csc x + cot x)(csc x - cot x)
A. y ' = 1
B. y ' = - csc x cot x
C. y ' = 0
D. y ' = - csc2 x
Answer: C
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Consider these figures:
Which figure above, if any, is topologically equivalent to the given figure? Identify the topologically equivalent figure by letter.A sponge
A. A B. B C. C D. None of these
Solve the problem.A cheetah can run at a speed of approximately 68 miles per hour. Calculate this speed in feet per second. Round to the nearest whole number.
A. 92 ft/sec B. 111 ft/sec C. 100 ft/sec D. 136 ft/sec
Solve the problem.A generator produces an alternating current according to the equation I = 48 sin 109?t, where t is time in seconds and I is the current in amperes. What is the smallest time t such that I = 24?
A. 
sec
B. 
sec
C. 
sec
D. 
sec
Find the requested area.Aunt Bea has won 3 blue ribbons and 3 red ribbons for her apple pies at the State Fair. She wants to display them in a single row across a display case which is 35 inches wide. She wants to have 
inch between the ribbons, and center the display in the case. Each blue ribbon is 
inches wide and each red ribbon is 
inches wide. How wide will the border on each side be?
A. 9
in.
B. 9
in.
C. 9
in.
D. 9
in.