For each sequence, determine whether it appears to be geometric. If it does, find the common ratio.

Q: -1.8,2.4,6.6,... a=3-5n q =.25(4)*1 %3D a = 4.2n-6 a =-2(.75)*-

A: We have to find general rule of the sequence  -1.8, 2.4, 6.6

Q: -2,-7,-12,.

A: Here we have, -2, -7, -12, .................. ⇒a1=-2, a2=-7, a3=-12, ......... The given series is…

Q: show that each sequence is geometric. Then find the common ratio and write out the first four terms.

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: find the sum of each sequence.

A: To Determine: find the sum of the sequence. Given: we have ∑kk=140 Explanation: we have a series…

Q: 3. а, %3-2, а, 3D (а-)? — 1 2- а,-1 6. а, 3-2, а, 2 9. a, = n° – n?

A: using given formulas of sequence we can find he term of sequence

Q: 8,-24,.072,..

A: The given sequence is .8, -.24, .072, ..............................

Q: Given the geometric að = 13, a₁ sequence: 65 11 find a formula for the n-th term: On Add Work 1 02…

A:

Q: Find t and t in the arithmetic sequence 21,24,.. 10 %3D %3D 10

A: Given arithmetic sequence is : 21 , 24 ,.... First term a=21 Common difference d=24-21=3 To find the…

Q: For each sequence, determine whether the sequence is arithmetic, geometric, or neither.

A: Given sequence, -300,100,300.......

Q: Write the first four terms of the sequence whose nth term, or general term, is given:

A: The first four terms of the sequence  n = 1, 2, 3, 4 a)        an=2n+5 First term: n = 1…

Q: write the next three of the given sequence 1, 1/3, 1/9, 1/27, __, __, __,

A:

Q: 4. 2, 14, 36, 68, 110, .. 21 ·,18,- ,5, 2 3 55 -,39, ... 2 2 5.

A: The nth term of the sequence is pn^2+qn We have to find out p and q for the desired term.

Q: (1 + V5)" – (1 – V5)" 5 1 Gn = 2" TABLE command on a graphing calculator to find the first ten terms…

A: Given that Gn=15(1+5)n-(1-5)n2nUsing a calculator we…

Q: C1 = -5, Cn = 5cn–1 – 3: -5 -5 8

A: To find the first four terms of the  sequence, we substitute n=2,3,4 in the given sequence and…

Q: F. Graph each sequence using its first five terms. 1. 1, 2, 3, 4, 5, . .. 1 4. ат %3D 2. a, =n + 3…

A: Solution is given below:

Q: 2 3 4 5 1'2' 4'8'

A: topic - formula for sequence

Q: a,=3-5n a, = 25(4)*1 a =4.2n-6 a, =-2(.75)*

A: Explanation of the answer is as follows

Q: d. d(1) = 1, d(n) = d(n – 1)² + 1 , n > 2 e. f(1) = 1, f(n) = f(n – 1) + 2n – 2, n 2 2 %3D (From…

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