Solve.When a low-pressure system moved through an area, the barometer dropped 12 millibars in three hours. Using a signed number, find the average drop per hour.
A. -36 millibars per hour
B. +36 millibars per hour
C. -4 millibars per hour
D. +4 millibars per hour
Answer: C
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. - 
- 
+ C
B. 2 ln 
- 
- 
+ C
C. 
- 
+ C
D. 
- 
- 
+ C
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Multiply.(-7m - 9)(-4m2 + m + 5)
A. 28m3 + 29m2 - 44m - 45 B. 28m3 - 44m2 + 29m - 45 C. 28m3 - 44m - 45 D. 28m3 + 29m2 - 44m
Mathematics
Use a double integral to find the volume of the solid shown in the figure.
?
?
A. 
B. 
C. 
D. 
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Calculate using the rules for order of operations.
A. 
B. 
C. 
D. 
Mathematics