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
Answer: C
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Solve.The weight of an object on the Earth's surface is inversely proportional to the square of its distance from the center of the Earth. An object weighs 1100 pounds on the Earth's surface. This is approximately 4000 miles from the center of the Earth. How much would this object weigh 4800 miles from the center of the Earth? (Round to the nearest tenth of a pound.)
A. 1584 pounds B. 763.9 pounds C. 1004.2 pounds D. 916.7 pounds
Solve the problem.Find the total area of the roof of the garage.
A. 182 ft2 B. 91 ft2 C. 273 ft2 D. 40 ft2
Find a general term an for the geometric sequence.a1 = 
, r = 8
A. an = 
? 8n-1
B. an = 
+ 
(n - 1)
C. an = 
n - 1 + 
D. an = 
+ 8(n - 1)
Draw the graph of a function that is continuous on its domain but not continuous at any integer. ?
A. ?
?
B. ?
?
C. ?
?
D. ?
?
E. ?
?