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LiRa [457]
3 years ago
9

Please answer fast!

Mathematics
1 answer:
rosijanka [135]3 years ago
5 0

Multiply the three numbers.

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Find the 11th partial sum of the summation of negative 7i plus 22, from i equals 1 to infinity.
marta [7]
I think you mean,

\sum_{i=1}^{\infty}(7i+22)

You can use the usual formula,

S_{k}=\frac{k}{2}(a_1+a_k)

That in this case is,

S_{11}=\frac{11}{2}(29+99)=704

Where I have used,

a_k=7\cdot k +22
3 0
3 years ago
-8 times 0.09 times -0.5
Black_prince [1.1K]
The answer is 0.36. I don't think u need to explain why, right ;)
8 0
3 years ago
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I need help Plzzzzzzzzzzz.
Furkat [3]

Answer: 1st one is no solution

and then i cant see the question for the 2nd one

Step-by-step explanation:

8 0
3 years ago
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Estimate the sum of 1,256, 379 and 305,986 by first rounding each number to the nearest ten thousand.
KatRina [158]

9514 1404 393

Answer:

  1,570,000

Step-by-step explanation:

The sum is approximately ...

  1,260,000 +310,000 = 1,570,000

_____

<em>Additional comment</em>

It is a good idea to estimate the error associated with an estimate. Here, both numbers are rounded up by about 4000 each, so the estimate is around 8000 high.

3 0
3 years ago
Sammie competes in 14 chess matches. Of those matches, she wins 8. What percent of the matches did Sammie win?
weeeeeb [17]

Answer:

57.1428%

Step-by-step explanation:

8 divided by 14 = 0.57142857142 then turn it to a fraction which you move the period two times to the right thus the answer is

57.1428....

5 0
3 years ago
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