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dlinn [17]
3 years ago
9

For the arthritic sequence 5,9,13,17,21,... how many terms would you need to get to 129

Mathematics
1 answer:
Vlad1618 [11]3 years ago
8 0

9514 1404 393

Answer:

  32

Step-by-step explanation:

The first term is 5 and the common difference is 9-5=4, so the n-th term is ...

  an = a1 +d(n -1)

  an = 5 +4(n -1) = 4n +1

Then the term number for the term 129 is ...

  129 = 4n +1 . . . . . put the given value in the formula

  128 = 4n  . . . . . . . subtract 1

  32 = n . . . . . . . . . .divide by 4

The 32nd term is 129.

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16th term in the geometric sequence 1024, -512, 256, ....
tresset_1 [31]

Answer:-1/32

Step-by-step explanation:

First term=a=1024

Common ratio=r=-512/1024

r=-1/2

Using them formula

Tn=a x r^(n-1)

T16=1024 x (-1/2)^(16-1)

T16=1024 x (-1/2)^15

T16=1024 x -1/32768

T16=-1024/32768

T16=-1/32

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3 years ago
At a basketball game, a vender sold a combined total of 222 sodas and hot dogs. The number of sodas sold was 58 more than the nu
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Answer: S=135

Step-by-step explanation:

Here is the link I'm sure its the right answer.

https://www.algebra.com/algebra/homework/word/finance/Money_Word_Problems.faq.question.947939.html

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3 years ago
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Step-by-step explanation:

7 0
3 years ago
Which expression is equivalent to (27.3-5.9)4?
makkiz [27]

Answer:

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Step-by-step explanation:

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so when you are opening a bracket you multipli the number in the bracket with the one outside the bracket

I.E

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4×5.9=23.6

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Step-by-step explanation:

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