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 standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Asymptotes y = 
x, y = - 
x; one vertex is (0, 22)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Find the quantity indicated.b varies directly as a. Find k when a = 72 and b = 6.
A. k = 13
B. k = 12
C. k = 
D. k = 66
Mathematics
Find the product, and write in lowest terms, if necessary.1 ? 
A. - 
B. - 
C. 
D. - 
Mathematics
Translate the sentence into an equation.x varies inversely as y cubed.
A. x = 
B. x = ky3
C. x = 
D. x = 
Mathematics