Simplify the expression.j11
A. j
B. 1
C. -1
D. -j
Answer: D
You might also like to view...
Choose the most reasonable unit of measure.Medication in a tablet 190 
(mg, g, kg)
A. g B. kg C. mg
Identify where f is increasing and where f is decreasing.f(x) = -3x + 2
A. neither B. increasing: (-?, ?); decreasing: never C. increasing: [2, ?); decreasing: (-?, 2] D. increasing: never; decreasing: (-?, ?)
Find the slope of the line through the pair of points.
and 
A. 
B. 
C. 
D. 
Solve the problem.The time to failure t, in hours, of a certain machine can often be assumed to be exponentially distributed with probability density function f(t) = ke-kt, 0 ? t < ?, where k = 
and a is the average amount of time that will pass before a failure occurs. Suppose the average amount of time that will pass before a failure occurs is 80 hours. What is the probability that a failure will occur in 49 hours or less?
A. 0.5496 B. 0.4580 C. 0.3435 D. 0.3664