Find the nth term an of the geometric sequence.6, 15, 
, 
, . . .
A. an = (6)
n-1
B. an = (6)
n-1
C. an = 
n-1
D. an = (6)
n
Answer: B
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The fraction F of the surface of Earth that is visible from an altitude of h kilometers above the surface is given by
.
A. Make a graph of F versus h. Include altitudes up to 100,000 kilometers.B. What fraction of Earth's surface is visible from 1220.00 kilometers above Earth's surface? Report your answer both as a decimal (rounded to two places) and as a percentage of Earth's surface.C. Use your graph to determine the largest fraction of Earth's surface that is visible no matter what the altitude.
What will be an ideal response?
Factor the polynomial completely. If the polynomial is prime, so state.15x2 - 19xy + 6y2
A. (x - 2y)(15x - 3y) B. (3xy - 2)(5xy - 3) C. (3x - 2y)(5x - 3y) D. (5x - 2y)(3x - 3y)
Determine whether the variation between the indicated quantities is direct or inverse.The price of an item and the quantity of the item that you can purchase with a given amount of money
A. Direct B. Inverse
Find the length of the polar curve.  FIGURE 1.png)
What will be an ideal response?