List the elements in the set .Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. C - A
A. {v, x, z}
B. {q, s, u, v, x, z}
C. {q, s, u}
D. {w, y}
Answer: A
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Solve the problem.When exposed to ethylene gas, green bananas will ripen at an accelerated rate. The number of days for ripening becomes shorter for longer exposure times. Assume that the table below gives average ripening times of bananas for several different ethylene exposure times.
Plot the data and then find a line approximating the data. With the aid of this line, determine the rate of change of ripening time with respect to exposure time. Round your answer to two significant digits.
A. 
5.6 days
B. 
-0.14 day per minute
C. 
38 minutes
D. 
-6.7 days per minute
Provide an appropriate response.If your instructor has a test bank that includes 50 easy questions, 20 average questions, and 5 hard questions, what is the probability that you will choose a hard question if you choose one question at random?
Fill in the blank(s) with the appropriate word(s).
The following figure is composed of one large and three small semicircles. Find the shaded area enclosed by the four semicircles. Give the exact answer.
What will be an ideal response?
Use the product rule to simplify. Write the results using exponents.x ? x9
A. 2x10 B. x9 C. 2x9 D. x10