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sashaice [31]
3 years ago
7

Write the sum using summation notation assuming the suggested pattern continues 9-18+36-72

Mathematics
2 answers:
IgorC [24]3 years ago
5 0
I think it is 45 sorry if its wrong
Licemer1 [7]3 years ago
3 0
Let's first work out the pattern. Since it's an geometric progression, we can find the sum to n terms of the pattern.

S_n = \frac{a(r^n - 1)}{r - 1}
S_n = \frac{9((-2)^n - 1)}{-3}
S_n = -3((-2)^n - 1)

Now that we've developed our geometric progression, we can start to add sigma notation.

k
∑(-3[(-2)^n - 1])
n = 1
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Half of the dogs are small dogs

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Steve picks 55 pounds of pears. He packs an equal amount of pears into 6 bags. He then has 4 pounds of pears left. What is the w
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Because he has 4 pounds of apples left, you are to subtract that from the total pounds picked, which was a total of 55 pounds. So 55 with 4 taken away, or 55 - 4, equals 51. Since he had equally put 51 pounds into six bags, you are to then divide . 51 / 6 = 8.5. He had put 8.5 pounds worth of apples into each bag.
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Emil is itemizing deductions on his federal income tax return and had $1900 in non-reimbursed work expenses last year. If his AG
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Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices that can be found from other source:

A.$340 
<span>B.$1560 </span>
<span>C.$38 </span>
<span>D.$1862</span>

Below is the solution:

78000 x .0.02=1560 
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3 years ago
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Which expression gives the distance between the points (5, 1) and (9,-6)?
8_murik_8 [283]

9514 1404 393

Answer:

  C.  √((5-9)² +(1+6)²)

Step-by-step explanation:

The distance formula can be written ...

  d = √((x1 -x2)² +(y1 -y2)²)

Filling in the given point coordinates, this becomes ...

  d = √((5 -9)² +(1 -(-6))²)

Simplifying the signs, this becomes ...

  d = √((5 -9)² +(1 +6)²) . . . . . matches choice C

8 0
3 years ago
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Answer:

16(0.5x - 0.75y + 2)

Step-by-step explanation:

16 x 0.5 = 8

16 x -0.75 = -12

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