2 of 4 Given the explicit formula for a geometric sequence: An = –2.5(4)"-1 Which of the following is the 8th term? -640 -163,840 -10,000,000 -40,960 Next

Q: 2. Find the first 4 terms and the 40th term of the arithmetic sequence: = 67.3 – 4.7n - a1 = a2 = az…

A: To find the terms of the given arithmetic sequence, substitute n=1,2,3,....  in the given nth term…

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: 10 and a 6250 Write a rule for the n th term of the geometric sequence for which a, =

A: Given that a2 = - 10 a 6 = - 6250 We know that in a geometric sequence, a1 = a a2 = a.r a6 = a.r5…

Q: (1 point) Find a formula for the general term a, of the arithmetic sequence (starting with a1): {4,…

A: a1=4 a2=-2 a3=-8 a4=-11 Note that commond difference d=-6

Q: Ten-foot lengths of 2 x 2 lumber are to be cut into five pieces to form children’s building blocks;…

A: The given length of the log is 10 ft. We have to cut the log into 5 blocks, such that the lengths of…

Q: Find the 7" term of the geometric sequence 0,0, 0, .. Answer:

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Q: Find the 5th term of the geometric sequence: – 5, – 30, – 180, ... - - Round to 1 decimal place if…

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Q: Find the first term, the common difference, and give a recursive formula for the arithmetic…

A: nth term of the arithmetic sequence , an =a+(n-1)d ; where , 'a' is the first term and 'd' is the…

Q: Find the first 5 terms in the following sequence: a1 = 23, an = an 1+7, n> 2

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Q: Find first 5 terms of the following sequence: {an} given by a, = (-1)" („ 3n-2 n2-2n+3 99 Evaluate:…

A: First five terms of the sequence an=(-1)n(3n-2n2-2n+3) at n =1  a1=-3-21-2+3=-12 at n =2…

Q: Find the 10th term of the arithmetic sequence in which a1=12 and d = 9.1.

A: It is given that, a1=12d=9.1   It is known that nth term of arithmetic sequence can be found  by…

Q: Find the common ratio of the geometric sequence: {2, – 10, 50, – 250, 1250, ...} -

A: Topic - sequence and series r = common ratio r = an+1/an

Q: Please propose a formula for the elements of the following sequence a, which begins: 1, 3, 5, 7, .

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Q: Find the common difference , d, of the arithmetic sequence: 1/2, 3/4, 1, 5/4, 3/2, 7/4, 2...

A: If a1 , a2 , a3 , . . . , an , . . . be a arithmetic sequence then common difference d = a2 - a1 =…