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Basile [38]
4 years ago
13

I need help with this

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
7 0

Answer:

21.98 inches squared

Step-by-step explanation:

For the formula you plug in the diameter in where it says d.

You then multiply d (which = 7) by pi (which = 3.14)

when you do that you get 21.98 in. squared

I hope this helps

Nostrana [21]3 years ago
4 0

Answer:

21.98 square inches

Step-by-step explanation:

The formula is πd which means pi times the diameter. The value of pi is given (3.14) and the diameter is 7.

Multiply 7 times 3.14 to get 21.98

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Let's start by visualising this concept.

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1   2   4   8   16 ...

We can see that it starts to form a geometric sequence, with the common ratio being 2.

For the first question, we simply want the fifteenth term, so we just use the nth term geometric form:
T_n = ar^{n - 1}
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The second question begs the same process, only this time, it's a summation. Using our sum to n terms of geometric sequence, we get:
S_n = \frac{a(r^{n} - 1)}{r - 1}
S_{15} = \frac{2^{15} - 1}{2 - 1}
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3 years ago
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adoni [48]
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4 years ago
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ella [17]
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Now that we have our two point, we can use the slope formula: m= \frac{y_{2}-y_{1}}{x_{2}-x_{1} } to find the slope of our line:
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