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
Mathematics
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Find the curvature ? for the given function.r(t) = 12ti + (6 + 10 cos 
t)j + (7 + 10 sin 
)k
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
State how many peaks you would expect for the distribution described.Speeds of everyone traveling on a country road, including cyclists and motorists
A. Two B. None C. One D. Three
Mathematics
Determine whether or not the function is one-to-one.f(x) = 5x2 + x
A. Yes B. No
Mathematics
Provide an appropriate response.You are asked to change 5
to an improper fraction. What should be your first step?
A. Multiply 8 and 5. B. Divide 8 by 13. C. Multiply 13 and 5. D. Add 5 and 8.
Mathematics