Find the sum or difference. Write the answer in standard form, a + bi.(7 - 9i) + (2 + 3i)
A. 5 + 12i
B. -9 + 6i
C. 9 + 6i
D. 9 - 6i
Answer: D
Mathematics
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Find the probability.An airline estimates that 92% of people booked on their flights actually show up. If the airline books 75 people on a flight for which the maximum number is 73, what is the probability that the number of people who show up will exceed the capacity of the plane?
A. 0.0019 B. 0.0125 C. 0.0548 D. 0.0145
Mathematics
Integrate the function.
dx
A. ln
B. e3 - e2
C. ln
D. ln
Mathematics
Solve and graph the solutions.|x - 9| < 15
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
- 
Mathematics