Solve the problem.Give the number of possible outcomes for tossing 8 coins.
A. 128
B. 512
C. 256
D. 16
Answer: C
Mathematics
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Describe the domain of the function of three or more varables.f(x1, x2, ..., xn) = 
A. All points in ?4 that satisfiy x12 + x22 + ... + xn2 ? 0. B. All points in ?n except the origin (0, 0, ..., 0). C. All points in ?4 that satisfy x1 > 0, x2 > 0, ..., xn > 0. D. All points in ?n.
Mathematics
Find the total area of the region between the curve and the x-axis.y = 
; 1 ? x ? 3
A. 
B. 
C. 3
D. 
Mathematics
Solve.A store has gross revenues of $4425, $4532, $6225, and $7909 in its first four weeks of business. What was the gross revenue for those four weeks?
A. $23,641 B. $23,191 C. $22,091 D. $23,091
Mathematics
Use the sum of the first 9 terms to approximate the sum of the following series.
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Mathematics