Add or subtract as indicated and write the result in standard form.7i - (-9 - i)
A. -9 + 6i
B. 9 + 8i
C. -9 - 8i
D. 9 - 6i
Answer: B
Mathematics
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Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 2x + 4, g(x) = 
x - 2
A. Yes B. No
Mathematics
Solve the problem.Suppose that we wish to distribute the two-digit random numbers from 00 through 99 so that the corresponding random numbers can be used to simulate the sightings of UFO's in a given region. If the numbers 00 to 40 correspond to 0 sightings, what is the estimated probability of 0 sightings?
A. It is not possible to tell with the given information.
B. 0
C. 
D. 
Mathematics
Find the distance d(P1, P2) between the points P1 and P2.P1 = (5, -7); P2 = (3, -3)
A. 12
B. 2
C. 12
D. 6
Mathematics