157 Answered Questions for the topic Sequences

09/06/19

#### A probability question with sequences

A sequence of numbers X1, X2,... are produced by taking a random number from the set {1,2,3...n}.The summation Sk is defined to be X1+X2+...+Xk.Which of the following is a correct expression for...
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08/31/19

#### Pre Calculus 11 - Arithmetic Sequences

Violin lesson fees started at $46 per hour in January, 1990, and gradually increased by $2 .50 every year. How much is the hourly cost in January of 2014? Hint: It’s not a good idea to just apply...
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08/11/19

#### find the first four terms of the sequence given a n + 1 = a n + n

a. -9, -6, -4, 0b. -9, -7, -4, 0c. -9, -5, -4, 0d. -9, -5, -4, -1

05/23/19

#### Write the first five terms of the sequence defined recursively.

a0=-13, a1=13, a_k-2 +a_k-1

05/01/19

#### Sequences in Sequences

How would you find the sum of the sequence:0,4,12,24,40,60,...,760whose terms increase based on the arithmetic sequence:4,8,12,...It seems similar to triangular numbers.How would you find the sum...
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10/06/18

#### What is the difference between the graphs t(n)=2(3)^n and f(x)=2(3)^x

Both equations are to be graphed on the same axis but aren’t they both the same?

10/02/18

#### what is 80$ increased by 5% a month for 12 months

Receiving allowance of 80$ for the first month increased by 5% for each month after (for 12 months)

09/27/18

#### arithmetic sequence question !!!

Assume that a1,a2,a3,....ak form an arithmetic sequence. If we have a5 + a8 + a11 = 10 , a7 + a10 + a13 = 12 , and ak=11 , the k= ????

09/08/18

#### h=-5 and w= 2 work out the value of 4h- 3w

i am really upset i can seem to solve it heeeeeeeeeeeeeelp me

08/08/18

#### If n+5, 2n+1 and 4n-3 are consecutive terms of an arithmetic sequence, find n.

If n+5, 2n+1 and 4n-3 are consecutive terms of an arithmetic sequence, find n.

07/30/18

#### Enter a recursive rule for the geometric sequence. 3, −12, 48, −192, ... a1= ; an=

please help need answer asap!!!

07/17/18

#### Sequences - Need help for exam question!

The following terms are given:
U1 = 196830 U4 = 7290 and U7 = 270
The starting term is U0
Is this an arithmetic or geometric sequence? Motivate your answer.
I tried finding the common...
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07/17/18

#### Sum of an arithmetic sequence

The direct formula of a sequence is given by Vn = 7 + 3n
Compute using the sum formula: (sum sign) 16 above and n=8 below. (7+3n)
The answer I got = 55 + 31/2 • 9 = 387
Is this...
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07/16/18

#### Arithmetic Sequences - Question

An arithmetic sequence starting at 4 and a common difference of 4.
What will the answer be at "a359" term?

05/22/18

#### if (1+x),(5/6+x),(13/18+x) are 3 consecutive term of a G.P Find it common ratio

SEQUENCES AND SERIES G.P

04/20/18

#### Word problem

The first three terms of an Arithmetic Progression are ( x + 1 ), ( 4x - 2 ) and ( 6x - 3).If the last term is 18, find x

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