Use the graph of y = 
to solve the equation 
where 
and y2 represent linear functions.
A. {0}
B. {6}
C. {5}
D. {5.5}
Answer: D
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Calculate the surface area of the given surface.The surface f(x,y) = x2 + y2, -1 ? x, y ? 2. (Hint: Do the first integral by substitution or using a formula from the Table of Integrals. Use numerical integration to do the outer integral.)
A. 35.5222 B. 18.4734 C. 25.3332 D. 29.3516
Solve the problem.The graph depicts the amount of water left in a bathtub. Find and interpret each intercept.
A. (0, 3); (30, 0); The bathtub initially contained 3 gallons and emptied in 30 minutes. B. (0, 3); (30, 0); The bathtub initially contained 30 gallons and emptied in 3 minutes. C. (0, 30); (3, 0); The bathtub initially contained 3 gallons and emptied in 30 minutes. D. (0, 30); (3, 0); The bathtub initially contained 30 gallons and emptied in 3 minutes.
Divide using the quotient rule for exponents. Write the result with positive exponents. Assume that variables in the denominator are not equal to 0. 
A. 
B. 
C. 
D. 
Solve, rewrite in interval notation, and graph.4x - 10 ? 18 and 2x - 1 > 11
A. (-?, 6) ? [7, ?)
B. [6, 7)
C. (-?, 7]
D. (6, 7]