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Minchanka [31]
3 years ago
14

HELP ME PLEASEEEEEEE CIRCUMFERENCE AND AREA OF A CIRCLE

Mathematics
2 answers:
Solnce55 [7]3 years ago
4 0

Answer:

the circumference is 18.85

the area is 28.27

Step-by-step explanation:

san4es73 [151]3 years ago
3 0

Answer:

Formula for circumference: 2 x pie(3.14 or 22/7) x radius(half of diameter or already given radius). Area of a circle: pie(3.14 or 22/7) x radius squared

Radius: 3, 6 is diameter and half of that is 3.

3 x 3.14 x 2 = 18.84 <------ circumference

3.14 x 3^2

3.14 x 9 = 28.26 <------ area of the circle

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3 years ago
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3 0
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How do I solve this??
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A 5-meter ladder is leaning against the side of a house. The foot of the ladder is pulled away from the house at a rate of 0.4 m
Flura [38]
<h2>The top of the ladder is descending at 0.3 m/s.</h2>

Step-by-step explanation:

By Pythagoras theorem we know that

              Hypotenuse² = Base² + Perpendicular²

                   h² = b² + p²

We have for ladder

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                        5² = 3² + p²

                        p = 4 m

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Differentiating h² = b² + p² with respect to time

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The top of the ladder is descending at 0.3 m/s.

3 0
3 years ago
Sharon borrowed $750 at 12% for one year. She paid a $20 processing fee. How much will she pay in interest?
Hunter-Best [27]

Answer:

$90

Step-by-step explanation:

The principal amount in the loan taken by Sharon is $750 . Note hat the $20 processing fee is a one time cost and is not included in the interest calculation.

Annual Rate of interest offered to Sharon is 12%

Time interval for the loan transaction is 1 year.

So the interest for 1 year is given by \[Principal * Rate * Year /100\]

\[750 * 12 * 1 /100\] = $90

So, Sharon will have to pay $90 as interest for the loan amount $750 borrowed for one year at the rate 12%.

8 0
3 years ago
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