All categories

2 years ago

12. The circumference of a quarter is about 76 mm. What is

Mathematics

1 answer:

77julia77 [94]2 years ago

4 0

Answer: A= 460 mm2

Step-by-step explanation:

Hi, since the circumference formula is :

C = 2 π r

Where r is the radius, we can solve the formula for the radius replacing with the value given:

76 =2 π r

76 / (2 π) = r

r = 12.1 mm

Now , we have to apply the formula for the area of a circle.

A = π r^2

A = π (12.1)^2

A= 459.96 mm2= 460 mm2 (rounded to the nearest tenth, since .9 is higher than .5)

Feel free to ask for more if needed or if you did not understand something.

You might be interested in

Someone help me plz it’s fast easy plz

Fantom [35]

Answer:

(2,3,4)

First you take the exponent and times 2 by two then you get four then you subtract the 4 from the 1 and you get three then group thennumbers that gotten used

4 0

2 years ago

Help please T-T worth 10 pts.

alexira [117]

Answer:

Step-by-step explanation:

Trust me im kinda have the confidence

5 0

2 years ago

Read 2 more answers

Write a real world situation to explain -$15<$7

Ronch [10]

Jeff has -15$ his gf faith gives him 7.

5 0

2 years ago

PLEASE HELP ME SOMEONE

Anna71 [15]

Answer:

D. 44 cubic inches

Step-by-step explanation:

If I need an explanation I'll be happy to comment it to you.

Hope this helped otherwise!!!

5 0

2 years ago

If you divide the total distance traveled on a car trip (as determined by the odometer) by the elapsed time of the trip, are you

PSYCHO15rus [73]

In general, you're calculating the magnitude of average velocity. In fact, speed is a vector, and as such it also has a direction and orientation.

So, if you compute the average speed, you're assuming that you went directly from point A to point B, which is basically never the case.

If, instead, you actually moved on a straight line from point A to point B, then the two quantities are the same.

7 0

2 years ago