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Mice21 [21]
3 years ago
13

Using the formula C = 2πr, find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch.

Mathematics
2 answers:
Paraphin [41]3 years ago
6 0

Answer:

88 inches

Step-by-step explanation:

Diameter is 2 times the radius (r) so divided 28 by 2 to get 14 as the radius.

Plug this in:

2π14

28π

87.964

88

Viktor [21]3 years ago
4 0

The answer is 88 btw

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The length of a radius of a circle, measured in centimeters, is represented by the expression x + 1.5. The diameter of the circl
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The value of x of a circle with radius x + 1.5 and diameter of 9 2 / 5 cm is 7.9 cm

<h3>Radius of a circle</h3>

Radius of a circle is half of the diameter of a circle. The radius extend from the centre of the circle to the circumference.

Mathematically,

radius = 1 / 2 (diameter)

Therefore,

radius = (x + 1.5) cm

diameter = 9 2 / 5 cm = 47 / 5 cm

let's find x with the relationship above.

Therefore,

x + 1.5 = 47 / 5

subtract 1.5 from both sides

x + 1.5 - 1.5 = 9.4 - 1.5

x = 7.9 cm

learn more on radius here: brainly.com/question/12183018

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1 year ago
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3 years ago
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Study the geometric sequence {-4, -84, -1764, -37044, ...}.
Nonamiya [84]

Answer:

              \bold{a_n=(-4)21^{n-1}}

Step-by-step explanation:

a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21

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3 0
3 years ago
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Effectus [21]

Answer:

61

Step-by-step explanation:

add the number of minutes for each day and then divide that number by the number of days

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3 years ago
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julsineya [31]

Answer:

P= 30 cm

Step-by-step explanation:

Formula for Rectangle Perimeter P=2(l+w)

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P=2(15)

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2 years ago
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