Write sigma notation. +  +  +   + . . .

A.
B.
C.
D.


Answer: B

Mathematics

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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve  - 5 ? x ? 5, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?

A. 8 B. 17 C. 21 D. 5

Mathematics

Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.

What will be an ideal response?

Mathematics

Solve the equation by making an appropriate substitution.x - 8 + 7 = 0

A. {1, 49}
B. {-1, 1, -7, 7}
C. {-1, 1, -}
D. {1, 7}

Mathematics

Write the fraction in simplest form.- 

A.
B. - 
C. - 
D.

Mathematics