Use the formula for the sum of the first n terms of a geometric sequence to evaluate the sum.

A. 85
B. 108
C. 340
D. 1364


Answer: D

Mathematics

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Solve the problem.An object is dropped from 14 ft above the surface of the moon. How long will it take the object to hit the surface of the moon if 

A. 2.32 sec B. 5.38 sec C. 1.35 sec D. 1.64 sec

Mathematics

Find the nth term and the indicated term of the arithmetic sequence {an} whose initial term, a, and common difference, d, are given.a1 = 6; d = -7an = ?; a15 = ?

A. an = 6 - 7n; a15 = -92 B. an = 13 - 7n; a15 = -92 C. an = 13 - 7n; a15 = -29 D. an = 13 + 7n; a15 = -92

Mathematics

Find the product and simplify. ? 

A.  
B. 16z
C.  
D.

Mathematics

Use the given conditions to write an equation for the line in the indicated form.Passing through (4, 4) and perpendicular to the line whose equation is ;slope-intercept form

A. y = - x + 
B. y = - x - 
C. y = x - 
D. y = - 3x - 16

Mathematics