Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. 3.25
B. 0.13
C. 7.70
D. 421.80
Answer: C
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Provide the requested information about the circular function.What is the range of y = sec x?
A. (-?, -1] ? [1, ?) B. [-1, 1] C. (-?, -1) ? (1, ?) D. (-?, ?)
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Determine the intervals of the domain over which the function is continuous.
A. (-?, ?) B. (0, ?) C. (2, ?) D. (0, 2)
Solve the problem.There were 430 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $600. How many adults and how many children attended?
A. 170 adults, 260 children B. 150 adults, 280 children C. 130 adults, 300 children D. 260 adults, 170 children