Write the number as the product of a real number and i.- 
A. -11i
B. 11
C. i
D. 11i
Answer: A
Mathematics
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Find the average value of the function f over the given region.f(x, y) = 7x + 5y over the region bounded by the coordinate axes and the lines 
and 
.
A. 
B. 
C. 
D. 
Mathematics
Use the empirical probability formula to solve the exercise.Two coins are tossed 20 times and the number of tails is observed.
What is the probability that exactly one tail occurred?
A. 
B. 
C. 
D. 1
Mathematics
How many small squares must be shaded to represent the given percentage of the large rectangle shown?35%
A. 15 B. 24 C. 21 D. 27
Mathematics
Use DeMoivre's Theorem to write the expression in rectangular form.
3
A. 64
B. 8 + 6i
C. 8
D. -2 + 2i
Mathematics