Write a formula for the nth term of the given geometric sequence. Do not use a recursion formula.- , , - , , ...

A. an = -  - (n - 1)
B. an = - n - 1
C. an = n - 1 + 
D. an = -  + (n - 1)

Answer: B

Mathematics

You might also like to view...

Solve the problem.The 9 ft wall shown here stands 30 feet from the building. Find the length of the shortest straight beam that will reach to the side of the building from the ground outside the wall.

A. 53.3 ft B. 52.3 ft C. 39 ft D. 51.3 ft

View
Mathematics

Find all solutions of the equation.cos x csc x = 2 cos x

A. x =  + n? or x =  + n? or x =  + n?
B. x =  + 2n? or x =  + 2n? or x =  + n?
C. x =  + n? or x =  + n? or x =  + n?
D. x =  + 2n? or x =  + 2n? or x =  + n?

View
Mathematics

Write  <  or  >  between the pair of numbers to make the statement true.0 ? -5

A. < B. >

View
Mathematics

Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.ax +by = x +y = 

A.
B.
C.
D.

View
Mathematics