Solve the problem.The formula 
is used in electrical engineering. The variables I, V, and Z are complex quantities. Find V for the given values of I and Z, and express the answer in standard form.
A. 28 + 94i
B. 94 - 28i
C. 28 - 94i
D. 94 + 28i
Answer: A
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Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.
What will be an ideal response?
Find the nth term {an} of the geometric sequence. When given, r is the common ratio.3, 1, 
, 
, 
, ...
A. an = 3 ? 
n-1
B. an = 3 ? 
n-1
C. an = 3 ? 
n + 1
D. an = 3 ? 
n
Use Cramer's rule to solve the system.11x + 3y=15x + 2y=4
A. {(
, 
)}
B. {(- 
, 
)}
C. {(
, - 
)}
D. {(- 
, 
)}
Solve the problem.A 5-card hand is dealt from a deck of 52 cards. What is the probability thata) none are queens?b) all are queens?
A. a) 0 b) 0.07487 B. a) 0 b) 0.65884 C. a) 0.65884 b) 0 D. a) 0.07487 b) 0