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astra-53 [7]
3 years ago
12

A circular track has a diameter of 62 yards, whats the circumference of the track

Mathematics
1 answer:
earnstyle [38]3 years ago
7 0

Answer:

194.78 yards

Step-by-step explanation:

Diameter: d=62yards

Perimeter: p=2×pi×r=pi×d, where d=2×r, r being the radius.

We get: p=pi×d=62×pi=194.78 yards

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This is converting to polar form, I need help and the answer too.
Mila [183]

Answer:

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Step-by-step explanation:

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r = sqrt (-sqrt(3) )^2 + (-1)^2)

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    = sqrt(4)

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theta  = arctan (b/a)

theta = arctan (-1/-sqrt(3))

theta = 30

but this is in the third quardrant  -a and -b

so add 180

theta = 210 degrees

convert this to radians

210 * pi/180 = 210/180 * pi = 21/18 * pi = 7/6 * pi


r cis (theta)

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3 years ago
When 31 times a number is increased by 40, the answer is the same as when 200 is decreased by the number
mojhsa [17]

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The number is 5.

3 0
3 years ago
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Question 15 A party rental company has chairs and tables for rent. The total cost to rent 8 chairs and 3 tables is $38 . The tot
SIZIF [17.4K]

Answer:

Each table is $6 and each chair is $2.50

Step-by-step explanation:

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3 years ago
Ashley opened a lemonade stand on her street. It costs her $12.50 to buy the supplies each day, and she sells lemonade for $2.50
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Answer:

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Divide by 2.5 on both sides

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