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lyudmila [28]
3 years ago
8

OFFERING A LOT OF POINTS. please write 2 or

Mathematics
1 answer:
romanna [79]3 years ago
7 0

Answer:

Rhode Island has 1,000,000 people within an area of 1000 sq miles.....

1,000,000/1000 = 1000 people per sq mile

Step-by-step explanation:

If Alaska had the same number of people per square mile as Rhode Island, its population would be calculated as 663,000 mi^2 times 1,000 people = 663,000,000 people.

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-5x^2-8x+1=0

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A grocery store owner is planning a display by stacking cans of soup in a pyramid. The top row of the stack will have 1 can, the
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144?

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FinnZ [79.3K]
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HELP ASAP PLEASE!!! 20 POINTS!!
Kobotan [32]

Answer: S_{12}=399.90

Step-by-step explanation:

You know that the formula to find the sum of a finite geometric series is:

S_n=\frac{a_1(1-r^n)}{1-r}

Where n is the number of terms, a_1 is the first term and r is the common ratio (r\neq 1).

The steps to find the sum of the first 12 terms of the given geometric serie, are:

1. Find the common ratio "r". By definition:

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2. Finally, knowing that:

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You must substitute values into the formula.

Then you get:

S_{12}=\frac{200(1-(\frac{1}{2})^{12})}{1-\frac{1}{2}}\\\\S_{12}=399.90

6 0
3 years ago
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