Find the volume of the solid capped by the surface z = f(x, y) over the region with the given boundaries on the xy-plane.z = (x + y)2; -1 ? x ? 1, -1 ? y ? 1
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Mark can remember only the first 5 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 17 seconds to try each one, how long would it take to try every possibility?
A. 25.5 min B. 2.8 min C. 28.3 min D. 5.7 min
Use the change of base formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log8.0 88
A. 11.00 B. 0.46 C. 2.15 D. 1.94
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
If y varies directly as x, find a linear function which relates them.y = 5 when x = 40
A. f(x) = 8x
B. f(x) = 
C. f(x) = 
D. f(x) = x + 35