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Len [333]
3 years ago
12

What is the sum of the first nine terms of this Sequence if the first term is 0?

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Answer:

D. 160

Step-by-step explanation:

The sum of the sequence 1, 2, 3, 4, ... , n is n(n + 1)/2.

Here, you have the sum of 4(1, 2, 3, 4, ... , n), so the sum is 4[n(n + 1)/2]

In this case, the first term is 0, so the last term is the 8th term of the sequence above, so n = 8

4[n(n + 1)/2)] =

= 4[8(9)/2]

= 4[72/2]

= 4(36)

= 144

The closest answer is D. 160

pishuonlain [190]3 years ago
7 0

Answer:

The answer is B.

Step-by-step explanation:

First you write out the first nine multiples of 4. Then you add them.

4 + 8 + 12 + 16 + 20 + 24 + 28 + 32 + 36 = 180


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Answer:

Step-by-step explanation:

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Answer

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4x + 10 = 2x - 14<br> Find the value of x.
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Answer:

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Step-by-step explanation:

Simplifying

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Solving

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Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

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3 0
3 years ago
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