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Art [367]
3 years ago
9

Find the sum of the first 48 terms of the following series, to the nearest integer.

Mathematics
2 answers:
Usimov [2.4K]3 years ago
5 0

Step-by-step explanation:

∑k=150(3k+2)

First find a1 and a50 :

a1=3(1)+2=5a20=3(50)+2=152

Then find the sum:

Sk=k(a1 + ak)2S50=50(5 + 152)2=3925

Paladinen [302]3 years ago
5 0

Answer:

3672

Step-by-step explanation:

Delta math

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Naddik [55]

Answer: (X-12)(x+4)

The middle number is -8 and the last number is -48.

Factoring means we want something like

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Which numbers go in the blanks?

We need two numbers that...

Add together to get -8

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Can you think of the two numbers?

Try 4 and -12:

4+-12 = -8

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Fill in the blanks in

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Answer:

(x+4)(x−12)

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What is the value of the expression?
FromTheMoon [43]

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3 years ago
A washer and dryer cost a total of $939. The cost of the washer is two times the cost of the dryer. Find the cost of each item.
Natasha_Volkova [10]

Answer:

The washer costs $626 and the dryer costs $313.

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8 0
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