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miv72 [106K]
3 years ago
9

To the nearest hundredth of a yard, determine the circumference of the given circle. Approximate as 3.14. r=6

Mathematics
1 answer:
Bond [772]3 years ago
7 0

Answer:

37.68

Step-by-step explanation:

c = 2 x 3.14 x 6

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Given $m\geq 2$, denote by $b^{-1}$ the inverse of $b\pmod{m}$. That is, $b^{-1}$ is the residue for which $bb^{-1}\equiv 1\pmod
goblinko [34]

(2+3)^{-1}\equiv5^{-1}\pmod7 is the number <em>L</em> such that

5L\equiv1\pmod7

Consider the first 7 multiples of 5:

5, 10, 15, 20, 25, 30, 35

Taken mod 7, these are equivalent to

5, 3, 1, 6, 4, 2, 0

This tells us that 3 is the inverse of 5 mod 7, so <em>L</em> = 3.

Similarly, compute the inverses modulo 7 of 2 and 3:

2a\equiv1\pmod7\implies a\equiv4\pmod7

since 2*4 = 8, whose residue is 1 mod 7;

3b\equiv1\pmod7\implies b\equiv5\pmod7

which we got for free by finding the inverse of 5 earlier. So

2^{-1}+3^{-1}\equiv4+5\equiv9\equiv2\pmod7

and so <em>R</em> = 2.

Then <em>L</em> - <em>R</em> = 1.

6 0
3 years ago
Distribute –2 (–2 – 5x2).
lara31 [8.8K]

Answer:

4 + 10x^2

Step-by-step explanation:

–2 (–2 – 5x^2)

Distribute

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3 years ago
Sweet T has 2 orange pick for every 5 green. If there are 21 picks in all
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2/5=x/21
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If a bicycle wheel has a diameter of 28 inches how many revolutions does it take to travel 3 miles
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The circumference of the tire would be: 28 x PI = 87.96 inches = 88 inches.

88 inches / 12 inches = 7.33 feet

Every revolution the tire would travel 7.33 feet.

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3 miles = 5280 x 3 = 15,840 feet total.

Divide total feet by the circumference of the tire:

15,840 / 7.33 = 2,161 revolutions.



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