Write sigma notation.
+ 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. 
Answer: B
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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
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?
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}
Write the fraction in simplest form.- 
A. 
B. - 
C. - 
D. 