Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 11 terms of the geometric sequence: 4, -12, 36, -108, 324, . . . .
A. 177,142
B. 177,155
C. 177,148
D. 177,146
Answer: C
Mathematics
You might also like to view...
Solve the problem. Round your answer, if appropriate.As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume that the current image is 7 cm × 5 cm. Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.7 cm/s and the width of the image is changing at 0.1 cm/s.
A. 8.4 cm2/sec B. 4.2 cm2/sec C. 5.4 cm2/sec D. 10.8 cm2/sec
Mathematics
Simplify.
2
A. 
B. 
C. 
D. 
Mathematics
Write four additional terms of the geometric sequence.6, 18, 54, . . .
A. 162, 486, 1458, 4374 B. 108, 216, 432, 864 C. 162, 486, 1468, 4399 D. 216, 864, 3456, 13,824
Mathematics
Simplify the expression. i-6
A) i B) - 3i C) - i D) - 1 E) 1
Mathematics