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3 years ago

Find the area of a circle with the circumference of 50.24 units.

Mathematics

1 answer:

stiks02 [169]3 years ago

8 0

Answer:

A = 200.96 units^2

Step-by-step explanation:

We know the circumference is given by

C = 2 * pi *r

Approximating pi by 3.14

50.24 = 2 * 3.14 *r

50.24 = 6.28 r

Divide each side by 6.28

50.24/ 6.28 = 6.28r/6.28

8 =r

Now we can find the area

A = pi * r^2

A = 3.14 * r^2

A = 3.14 (8)^2

A = 200.96 units^2

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PLS HELP!

tangare [24]

Answer:

A,C,E

Step-by-step explanation:

A statistical question has variability in the answer, so,

A=could range from any numbers providing a wide range of results

B=it's one answer (eg.5ft4) meaning a range can't be produced

C=could range from any food providing a wide range of results

D=One answer so no variations possible

E= could be a range of numbers

7 0

3 years ago

How long does it take to travel 240 km at a constant speed of 12 km/h? Enter your answer in the box.

Rainbow [258]

Answer:

20 hours

Step-by-step explanation:

Given : Distance = 240 km

Speed = 12km/hr

To Find:How long does it take to travel 240 km at a constant speed of 12 km/h?

Solution:

We need to calculate the time taken to travel 240 km at a constant speed of 12 km/h

Formula : $time =\frac{distance}{speed}$

$time =\frac{240}{12}$

$time =20$

Thus it take 20 hours to to travel 240 km at a constant speed of 12 km/h

6 0

3 years ago

Read 2 more answers

Find the compound amount and interest if Php. 400,000 is invested at 8 %, compounded quarterly for 5 years and 6 months?

miss Akunina [59]

Answer:

618 391 .87

Step-by-step explanation:

5 years 6 months = 22 quarters

8% = .08 .08/4 = .02 interest per period

400 000 ( 1 + .02)^22 = 618 391.87

4 0

2 years ago

The system of equations y = -2x+4 and

Genrish500 [490]

Answer:

The answer is (3,-2)

Step-by-step explanation:

$\frac{1}{3} x - 3 = - 2x + 4 \\ \frac{1}{3} x + 2x = 7 \\ \frac{7}{3} x = 7 \\ x = 3 \\ then \: \\ y = - 2$

7 0

3 years ago

1. Refer to the equation 2x - 4y = 12

Masja [62]

The coordinate pair can be obtained from the given equation by

rearranging the equation to make y the subject of the equation

The table of values obtained from the given equation is presented as follows;

$\begin{array}{|c|cr|} \mathbf{x}&&\mathbf{y}\\0&&-3\\1&&-2.5\\2&&-2\\3&&-1.5\\4&&-1\end{array}\right]$

The graph showing the points in the above table is attached

Reason:

The given equation is presented as follows;

2·x - 4·y = 12

(a) The values are found by making either x, or y the subject of the

formula, and inputting values as follows;

2·x - 4·y = 12

= 4·y

4·y = 2·x - 12

$\dfrac{4\cdot y}{4} = \dfrac{2 \cdot x - 12}{4}$

The rearranged equation is therefore

$y = \dfrac{x }{2} - 3$

Plugging in values of x, (0, 1, 2, 3) to find the corresponding y-values gives;

x = 0

$y = \dfrac{0 }{2} - 3 = -3$

x = 1

$y = \dfrac{1 }{2} - 3 = -2 \dfrac{1 }{2}$

x = 2

$y = \dfrac{2 }{2} - 3 = -2$

x = 3

$y = \dfrac{3}{2} - 3 = -\dfrac{3}{2} = -1.5$

x = 4

$y = \dfrac{4}{2} - 3 = -1$

The table of values is therefore;

$\begin{array}{|c|cr|} \mathbf{x}&&\mathbf{y}\\0&&-3\\1&&-2.5\\2&&-2\\3&&-1.5\\4&&-1\end{array}\right]$

The graph of the points can be plotted using MS Excel as presented here

Learn more here:

brainly.com/question/7221077

5 0

2 years ago