Simplify the expression. Assume that all variables are positive when they appear.
A. 147x
B. 7
C. 7x
D. 3x2
Answer: C
Mathematics
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Refer to the given map. Assume that the length of each east-west block is 
mile and the length of each north-south block is 
mile. 
Find the shortest possible walking distance (following the streets) between the bus stop and the library.
A. 1.50 mi B. 2.0 mi C. 1.75 mi D. 1.25 mi
Mathematics
Find the length of the curve.The line segment r = 6 sec ?, 0 ? ? ? 
A. 3(
+ ln(
+ 1))
B. 6
C. 6 ln
D. 
Mathematics
Find the surface area of the surface S.S is the surface 
x2 + 5z = 0 that lies above the region bounded by the x-axis, x = 
, and y = x
A. 7
B. 
C. 
D. 
Mathematics
Solve the problem.If 
is a convergent series of nonnegative terms, what can be said about 
?
A. Always diverges B. May converge or diverge C. Always converges
Mathematics