What does the circuit symbol in the figure mean?
?
?
A. Battery
B. NOR-gate
C. AND-gate
D. Light
E. Switch
Answer: D
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Find the indicated probability. Round as indicated.Find the probability of at least 2 girls in 7 births. Assume that male and female births are equally likely and that the births are independent events. Estimate the probability to three decimal places if necessary.
A. 0.773 B. 0.938 C. 0.063 D. 0.164
Solve the problem.A retail store buys 70 VCRs from a distributor at a cost of $225 each plus an overhead charge of $40 per order. The retail markup is 40% on the total price paid. Find the profit on the sale of one VCR.
A. $90.00 B. $89.77 C. $9023.00 D. $90.23
Use the limit rules to determine the limit.
f(x) , where f(x) = 
A. 1 B. 2 C. -9 D. 16
Find the volume generated by revolving about the x-axis the region bounded by the following graph.
A. 121?
B. 56?
C. 
?
D. 
?