Perform the indicated operation. Write your result in scientific notation.(2.7 × 10-5)(1.4 × 10-9)
A. 3.78 × 10-4
B. 4.1 × 1014
C. 3.78 × 10-14
D. 3.78 × 1014
Answer: C
Mathematics
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
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Draw and shade a part of a diagram to represent the figure.
of a diagram
A. 
B. 
C. 
D. 
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Find the probability.If 80% of scheduled flights actually take place and cancellations are independent events, what is the probability that 3 separate flights will all take place?
A. .01 B. .64 C. .51 D. .80
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Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 61 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = 61?r2 + 
?r3
B. V(r) = ?(61 - r)r3 + 
?r2
C. V(r) = ?(61 - r) + 
?r2
D. V(r) = ?(61 - r)r2 + 
?r3
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