Solve.The formula for the volume of a pyramid is V = 
?wh. Use this formula to find the height of a pyramid with a volume of 40 in.3, a width of 5 in., and a length of 6 in.
A. 400 in
B. 12 in.
C. 4 in.
D. 
in.
Answer: C
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (2, 1) for ln x + xy2 + ln y = 0.
A. 1
B. 
C. -1
D. - 
Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 160 feet and a maximum height of 40 feet. Find the height of the arch at 10 feet from its center.
A. 5 ft B. 39.4 ft C. 2.5 ft D. 0.2 ft
Provide an appropriate response.Explain the purpose of a comparative line graph.
What will be an ideal response?
Solve the problem.The accompanying graph shows the average number of degrees above/below normal in December from 2000-2009 where x = 0 represents 2000. 
Estimate the number of degrees above zero in 2003. Round to the nearest tenth.
A. 23.6 degrees above normal B. 1.1 degrees above normal C. 60.8 degrees above normal D. 3.4 degrees above normal