3 years ago

If the area of a circle is

Mathematics

1 answer:

ozzi3 years ago

5 0

Answer:

Since area =7.7

$area = \frac{22}{7} {(r)}^{2} \\ {(r)}^{2} = 2.45 \\ r = 1.57$

Then the circumference is

$c = 2pi\times r \\ = 2 \times 3.14 \times 1.57 \\ = 9.859$

You might be interested in

The amount of turn between two straight lines that have a common end point is called __________.

Anton [14]

Answer:

Angle

Step-by-step explanation:

In the image I added you can observe that the common endpoint is called a vertex, and the "turn" or aperture formed between the two straight lines (or arms) that converge in the vertex, is the angle and it can be measured on degrees.

I hope you find this information usefun and interesting! Good luck!

4 0

3 years ago

34.04 as a mixed number

miv72 [106K]

The answer is 34 1/25

6 0

2 years ago

Use substitution to slice this linear system 3x-2y=6 4y= -8

tatiyna

The answer to the question

8 0

2 years ago

Three students are using different strategies to add 12+34.

Tanzania [10]

Answer:

12+34=46

A=38

B=58

C=46

the answer is student c writes

5 0

2 years ago

The DeJeu family plan to drive to Marietta, GA to Newark, NJ. The distance is about 880 miles and the majority of their trip wil

iVinArrow [24]

Answer:

$10:02:24\ \text{pm}$

Step-by-step explanation:

d = Distance to travel = 880 miles

s = Average speed of the car = 65 mph

Time taken to cover the distance is

$t=\dfrac{d}{s}\\\Rightarrow t=\dfrac{880}{65}\\\Rightarrow t=\dfrac{176}{13}\ \text{h}=13.54\ \text{hours}$

Time the car stopped

$3\times 10+60=90\ \text{minutes}=1.5\ \text{hours}$

Total time of the journey

$13.54+1.5=15.04\ \text{hours}$

Converting $0.04\ \text{hours}$ to minutes

$0.04\times 60=2.4$

So, the total time taken for the journey is $15\ \text{hours and }2\ \text{minutes and }24\text{seconds}$

Time when they reach their destination

$7:30+15:2.4\approx 10:02:24\ \text{pm}$

8 0

2 years ago