Find the sum of the first five terms of the indicated geometric series.a1 = 2.728, r = 3.996
A. 926.84
B. 231.26
C. 347.07
D. 125.76
Answer: A
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
Calculate the requested distance.The distance from the point S(9, 2, 10) to the plane 2x + 2y + z = 8
A. 
B. 
C. 
D. 8
Mathematics
Without graphing, find the vertex.f(x) = -(x + 4)2 - 3
A. (-4, -3) B. (4, -3) C. (4, 3) D. (-4, 3)
Mathematics
Find the area.
A. 88 cm2 B. 124 cm2 C. 93 cm2 D. 84 cm2
Mathematics