Simplify.
A. 3
B. 
C. 4
D. -3
Answer: A
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Find the equation for the plane tangent to the parametrized surface S at the point P.S is the cylinder r(?, z) = 5 cos ?i + 5 sin ?j + zk ; P is the point corresponding to 
Fill in the blank(s) with the appropriate word(s).
Which of the following pairs of variables is most likely to have a spurious correlation?
a. number of dollars earned vs. number of hours worked b. grade earned on a test vs. amount of time spent studying c. average life expectancy vs. number of TVs per home d. gas mileage vs. average car speed on a trip
Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation x = -10p + 280, 0 ? p ? 28.What quantity x maximizes revenue? What is the maximum revenue?
A. 280; $1960 B. 70; $1470 C. 140; $1960 D. 210; $1470
Use the graph of the function to find the following: a. the domain and range of the function; b. the intercepts, if any; c. the intervals on which the function is increasing, decreasing, or is constant; d. whether the function is even, odd, or neither.
What will be an ideal response?