Solve the work problem.Glenn and Paula want to dig an irrigation channel for their garden. Together it takes them  to dig an appropriately sized irrigation channel. If Paula can dig the channel by herself in  how long would it take Glenn to dig the channel by himself? (Round your answer to the nearest tenth of an hour, if necessary.)

A. 3 hr
B. 1 hr
C. 1.7 hr
D. 3.6 hr

Answer: A

Mathematics

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Find the derivative of the function.f(x) = x5 log6 x

A.  
B. (ln 6) x4  + 5x4log6x
C.   + 5x4log6x
D. x4  + 5x4log6x

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Perform the matrix operation.Given C =  and D =  , find C - 4D.

A.

B.

C.

D.

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Classify the triangle as acute, right, or obtuse and as equilateral, isosceles, or scalene.

A. Obtuse, isosceles B. Acute, equilateral C. Acute, scalene D. Obtuse, equilateral

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Sketch the graph and show all local extrema and inflection points.y = ln (2 - x2)

A. Local maximum (0, ln 2)
No inflection point

B. Local minimum (0, ln 2)
No inflection point

C. No extrema
No inflection point

D. Local minimum (0, -ln 2)
No inflection point

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