Assume that the probability that an airplane engine will fail during a torture test is 
and that the aircraft in question has 4 engines. Find the probability that no engines will survive.
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: C
Mathematics
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Solve the following system by any appropriate method. If there is no real number solution, so state.4x2 + 6y2 = 54y = x + 3
A. (0, -3), (
, 
)
B. (0, -3), (- 
, - 
)
C. (0, 3), (
, 
)
D. (0, 3), (- 
, - 
)
Mathematics
Solve.(4m - 4)2 - 2(4m - 4) - 15 = 0
A. 
, - 
B. - 
, - 
C. - 
, 
D. 
, 
Mathematics
Solve the system of equations.x2 + y2 = 13x - y = 1
A. (-2, 3), (-3, 2) B. (-2, -3), (3, 2) C. (2, 3), (3, 2) D. (2, -3), (3, -2)
Mathematics
Solve the problem.The library is to be given 7 books as a gift. The books will be selected from a list of 23 titles. If each book selected must have a different title, how many possible selections are there?
A. 512,936,840 B. 1236 C. 5040 D. 245,157
Mathematics