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Assoli18 [71]
2 years ago
6

NEED HELP ASAP

Mathematics
2 answers:
Andrews [41]2 years ago
5 0

Answer:

The answer is 13 for the surface area

Step-by-step explanation:

kolezko [41]2 years ago
4 0

Answer:

13 I think I am so s t u p i d so probole Ronge

Step-by-step explanation:

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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
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Find the products<br> 6 + 8<br> 6 - 8
Oksanka [162]

Answer:

14

-2

Step-by-step explanation:

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A group of people were asked whether they watch television or read newspaper to get daily news.
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Please Hurry :) Alexis is writing a book about stand-up comedians and how to survive the comedy circuit. Because she took her sw
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I don’t see what your asking, theres no question. This is a statement.
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2 years ago
1. Your average daily balance on your charge card for the month of July is $855.28. If your card carries an annual interest rate
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1. Using "exact" interest, your charge will be
.. I = Prt
.. I = $855.28*0.154*(31/365)
.. I = $11.19

2. It will take 52.01 months to pay off the loan.

3. Your payment on 15,250 for 4 years will be $363.41. The effective interest rate that payment represents on a loan of $15,000 is 7.604%

4. Todd's monthly payments will be $409.06, so his total outlay will be
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