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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Solve the problem.Find x so that the vectors v = i - xj and w = -4i - 3j are orthogonal.
A. - 
B. - 
C. 
D. 
Mathematics
Multiply.-5(-4)(3)
A. -60 B. 50 C. 160 D. 60
Mathematics
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log7 
A. 
log7 x + 
log7 y - 
B. 
log7 x - 
log7 y + 
C. 
(log7 x2 + log7 y - 2)
D. 
(log7 x2y - log7 49)
Mathematics
Multiply. Leave the answer in trigonometric form.
?
What will be an ideal response?
Mathematics