Solve the problem.If A-1 = 
, solve AX = 
for X.
A. X = 
B. X = 
C. X = 
D. X = 
Answer: A
Mathematics
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Solve the problem.Find the impedance ZT when the impedances Z1 = -8 + 2j, Z2 = -8 - 2j and Z3 = 10j are in parallel.
A. ZT = -16 + 10j
B. ZT = 680j
C. ZT = - 
- 
j
D. ZT = - 
+ 
j
Mathematics
Use the empirical probability formula to solve the exercise.This spinner is spun 36 times. The spinner landed on A 3 times, on B 5 times, and on C 28 times. What is the probability that the spinner will land on B?
A. 
B. 
C. 
D. 
Mathematics
Use truth tables to test the validity of the argument.p ? ~q
? p
A. Valid B. Invalid
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x9y-1)8
A. 
B. x72y8
C. 
D. 
Mathematics