Evaluate the surface integral of G over the surface S.S is the dome z = 5 - 9x2 - 9y2, z ? 0; G(x, y, z) = 
A. 5?
B. 
?
C. 50?
D. 50
Answer: B
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Use a scientific calculator to approximate the common logarithm. Round to four decimal places.log 0.00264
A. -5.9370 B. -2.5784 C. -2.5952 D. -2.5622
Solve.If x is Sam's average speed when walking and x + 10 is his average speed when cycling, then the total time, T, for a trip involving 12 miles of cycling and 8 miles of walking is given by T = 
+ 
where T is in hours and x is in miles per hour. Find Sam's average walking speed if the total time for a trip is 5 hours.
A. 3 mph B. 3.5 mph C. 4 mph D. 2 mph
Solve.
+ 10 = 0
A. 
B. - 
C. No solution
D. - 
Express the graph shown using interval notation. Also express it as an inequality involving x.
A. [-2, 5] -2 ? x ? 5 B. (-2, 5) -2 < x < 5 C. [-2, 5) -2 ? x < 5 D. (-2, 5] -2 < x ? 5