Solve the equation.10n2 + 18n = 0

A. 0, 
B. 0
C. , - 
D. 0, - 


Answer: D

Mathematics

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Find the average value of    over the given region. z2 over the cube in the first octant bounded by the coordinate planes and the planes 

A.
B.
C.
D.

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Find the volume of the solid generated by revolving the region about the y-axis.The region in the first quadrant bounded on the left by y = x3, on the right by the line , and below by the x-axis

A. 4?
B. ?
C. ?
D. ?

Mathematics

Provide an appropriate response.The swimming pool measures 60 ft by 28 ft. How much fencing is needed, including material for a gate, if the fence is to be built 10 ft from each side of the pool?

A. 1,720 ft B. 216 ft C. 256 ft D. 128 ft

Mathematics

Solve the problem. Express any improper fraction as a whole or mixed number.Martha can rake the leaves in her yard in 6 hours. Her brother can do the job in 7 hours. How long will it take them to do the job working together?

A.  hr
B. 3 hr
C. 42 hr
D.  hr

Mathematics