All categories

2 years ago

The area of a circle is 39.62cm2. Find the length of the radius rounded to 2 DP.

Mathematics

1 answer:

Shkiper50 [21]2 years ago

4 0

Using the formula for area of a circle:

Area = pi x radius^2

Replace area with the given value:

39.62 = pi x radius^2

Divide both sides by pi

Radius^2 = 39.62/pi

Radius^2 = 12.62

Solve for radius by taking the square root of both sides

Radius = sqrt(12.62)

Radius = 3.55 cm

You might be interested in

Find the least number of three digit which is a perfect square.

Marizza181 [45]

$30^2=900\\31^2=961\\32^2=1024\\\\Answer:\boxed{961}$

4 0

3 years ago

According Two data from the 2010 United States Census 83.7% of Americans lived in the metropolitan area suppose maria researcher

Murrr4er [49]

Answer:

Mean is 83.7%

And, the standard deviation is 0.033

Step-by-step explanation:

The computation of the mean and the standard deviation is as follows:

Let us assume the P be the sample proportion

Mean is 83.7%

And, the standard deviation is

$= \sqrt{\frac{p(1-p)}{n} } \\\\=\sqrt{\frac{0.837(1-0.837)}{125} }$

= 0.033

8 0

3 years ago

Will give brainliest Please help

statuscvo [17]

Answer:

QR=RS

Step-by-step explanation:

She knows that PRQ=TRS because of vertical angles.

She needs to know the length of the lines QR and RS are equal, that is the line between the two angles.

5 0

3 years ago

How do you write 6,007,200 in words

kirill [66]

Six million, seven thousand two hundred

3 0

3 years ago

Read 2 more answers

In his free time. Gary spends 8 hours per week on the internet. and 11 hours per week playing video games. If Gary has 5 hours o

alexandr402 [8]

18% I believe. Because you do the math then you rounded out and then I get 18%

7 0

2 years ago

Read 2 more answers