The circumference of a circle is 14 pi ft. Find its diameter, in feet

Mathematics

2 answers:

SSSSS [86.1K]3 years ago

6 0

Answer:

The formula for area of a circle is:

, where

area,

, and

radius.

Since we know that the radius is half the diameter of a circle, we know that the radius of the given circle is

Hence:

154

Valentin [98]3 years ago

3 0

Answer:

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

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Joe began to increase the speed of his car at 2:00 P.M. Since that time,the speed of Joes car has been steadily increasing by 1

Olegator [25]

Answer:

7 mins

Step-by-step explanation:

Current speed of Joes Car = 65.5 mph

We have to find the time interval for which the car exceeded the speed limit of 55 mph.

While, we are given that the speed of the car was constantly increasing, hence the speed over all increased from the limit of 55 mph = 65.50-55.00 = 10.50 mph

We are also given that Joes car was increasing speed at a constant rate of 1.50 mph for every passing minute. Hence

1.50 mph is increased in 1 minute

1 mph will be increase in $\frac{1}{1.5}$ minutes