Find the indicated term of the geometric sequence.a1 = 7, r = ; Find a5.

A. a5 =  
B. a5 =  
C. a5 = 
D. a5 = 


Answer: D

Mathematics

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By calculating an appropriate number of terms, determine if the series converges or diverges. If it converges, find the limit L and the smallest integer N such that  for  otherwise indicate divergence.an = cos n

A. L = 0, N = 394 B. L = 1, N = 394 C. L = 0, N = 237 D. diverges

Mathematics

Solve the problem.When water runs out of a hole in a cylindrical container, the height of the water in the container can often be modeled by a quadratic function. Assume that the height of the water in a particular metal can with a small hole can be modeled by h = 0.0005x2 - 0.17x + 8, where x is the time (sec) and h is the height (cm). Use the quadratic formula to estimate the time when the height is 5 cm. Round your answer to the nearest second.

A. 26 sec B. 19 sec C. 23 sec D. 25 sec

Mathematics

Write the number in standard form.8(cos 135° + i sin 135°)

A. 4 - 4i
B. -4 + 4i
C. 8 + 4i
D. 8 - 4i

Mathematics

Evaluate. - 

A. -41 B. 3 C. 41 D. -3

Mathematics