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brilliants [131]
2 years ago
7

Round 34, 588 to the nearest thousand.

Mathematics
1 answer:
saveliy_v [14]2 years ago
7 0

Answer:

I think its 35,000

Step-by-step explanation:

.......... sorry if I'm wrong

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Find the 10th partial sum of the arithmetic sequence defined by
Evgesh-ka [11]

Answer:

22.5


Step-by-step explanation:

If you expand the series, you can see the first few terms of the series:

  • Putting 1 in n, \frac{1}{2}(1)-\frac{1}{2}=0
  • Putting 2 in n, \frac{1}{2}(2)-\frac{1}{2}=0.5
  • Putting 3 in n, \frac{1}{2}(3)-\frac{1}{2}=1
  • Putting 4 in n, \frac{1}{2}(4)-\frac{1}{2}=1.5

We can see the series is 0, 0.5, 1, 1.5, ....

This is an arithmetic series with common difference (the difference in 2 terms) 0.5 and first term 0.

We know formula for sum of arithmetic series:

s_{n}=\frac{n}{2}(2a+(n-1)d)

Where,

  • S_{n} denotes the nth partial sum
  • a is the first term (in our case it is 0)
  • n is the term (in our case it is 10 since we want to find 10th partial sum -- sum until first 10 terms)
  • d is the common difference (difference in term and the previous term) (in our case it is 0.5)

Substituting these into the formula, we get the 10th partial sum to be:

s_{10}=\frac{10}{2}(2(0)+(10-1)(0.5))\\s_{10}=5(0+(9)(0.5))\\s_{10}=5(0+4.5)\\s_{10}=5(4.5)\\s_{10}=22.5

So the sum of the first 10 terms is 22.5. Third answer choice is right.


8 0
3 years ago
Read 2 more answers
Which of the following is not a solution to the inequality graphed below? Select all that apply.
Whitepunk [10]
I think it is the first and third one
6 0
3 years ago
An unproven statement that is based on observations.
vazorg [7]

Answer:

Hypothesis

Step-by-step explanation:

When people make researches, they make a statement and then go further to either price that statement wrong or right.

Once the statement is proven right, either by virtue of field work or laboratory work, it becomes a theory.

That unproven statement that can either be true or wrong, but baseless because it is yet to be proven is called HYPOTHESIS

7 0
3 years ago
Help with this thing ??
serious [3.7K]

Answer:

1/4

Step-by-step explanation:

I'm not sure if he wants the Dilution factor or the scale but anyway

CBA = 4 C'B'A'

Scale 1/4

5 0
2 years ago
3 hours in 11 questions help plsssssss !!!!!!!!!!
e-lub [12.9K]

Answer:

regular a polygon is: c, e, a

irregular is: b

not a polygon is f, d

Step-by-step explanation:

Regular is a normal shape which has angles

Irregular has straight lines all the way.

Not a polygon has not straight lines and sometimes has a gap in between the lines.

Hope this helps.

7 0
2 years ago
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