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Over [174]
4 years ago
15

You are making a welding fixture and must cut down a length of copper tubbing from 15 1/8 inches to 8 3/4 inches. If the leftove

r piece is long enough , you will use it in another fixture . How long will the leftover piece be ?
Mathematics
1 answer:
fgiga [73]4 years ago
7 0

Answer: 51/8 inches

Step-by-step explanation:

Since you must cut down the length of copper tubbing from 15 1/8 inches to 8 3/4 inches, the leftover piece will be:

15 1/8 - 8 3/4

Change the mixed fraction to improper fraction.

121/8 - 35/4

The LCM will be 8

( 121 - 70 )/8

51/8 or 6.375 inches

Therefore, the leftover piece will be 51/8 inches long

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PART A

The geometric sequence is defined by the equation

a_{n}=3^{3-n}

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When n=3

a_{3}=3^{3-3}

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PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
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PART C

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