Find all values of x such that x - 7,x + 7, and 4x – 7 form a geometric sequence. A. x = 0 or x == C.x = -2 or x = B. x = 0 or x = D. x = 3 or x =

Q: 8n2 + 1n + 1 an 7n2 + 9n + 9

A:

Q: Use an=a1+(n-1)d and gn=g1re-1 to find: the 19th term of the geometric sequence -2, -6, -18, -54 .…

A: Here the given series is a geometric progression. So to find any term in the series we use formula…

Q: Find the infinite sum of the geometric sequence with a = 6, r 2 if it exists.

A: Here,  a=6, r=2/6

Q: Express the sum 3 + 5 + 7+ ... + (2k-1) using E-notation.

A: The given sum is 3+5+7+…+2k-1. Express the sum 3+5+7+…+2k-1 using ∑ notation as follows.

Q: determine the closed formula that generates the sequence 1,2,4,8,16,32

A: The given sequence in the question is:

Q: Find the 7th term of the geometric sequence where a1 = -2 and r = -2.     -128     4096…

A:

Q: Find the seventh term of the arithmetic progression x, x+y, x+2y,....

A:

Q: Find m given that 2m + 3, m + 4, and m are consecutive terms of an arithmetic sequence.

A:

Q: 6. Find the tenth term of the sequence a, = (-1)" =(-1)"| 2n-1 2n+7

A: Using given formula of nth term to find 10th term