All categories

2 years ago

Find the circumference and the area of a circle with diameter 2 cm.

Mathematics

1 answer:

ivolga24 [154]2 years ago

3 0

Answer:

$c = 6.28cm$

$area \: = 3.14 {cm}^{2}$

Step-by-step explanation:

$circumferece \\ = 2\pi \: r \\ = 2 \times 3.14 \times 1 \\ = 6.28cm$

$area = \pi {r}^{2} \\ = \pi \times 1 \times 1 \\ = 3.14 {cm}^{2}$

You might be interested in

Use inductive reasoning to predict the next month in the pattern: January, April, July...

Scrat [10]

Answer:

c.) October

Step-by-step explanation:

the pattern just skip two months

8 0

2 years ago

Read 2 more answers

(05.02) In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the

rewona [7]

Answer:

Hello! So your answer would be 90 degrees!

Step-by-step explanation:

So the equation would be

x + 50 + 40 = 180.

50 + 40 = 90

180 - 90 = 90!

So basically y and x are both 90

3 0

2 years ago

3 (x+12) I'm not sure how to do this

tangare [24]

3*x+3*12 3x+36 You just need to do the multiplication separately !

3 0

3 years ago

Read 2 more answers

our friend claims that his commute time to work is less than his commute time returning home on the same day. suppose that data

Rzqust [24]

Using a t-distribution calculator, the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

<h3>How to find the p-value of the t-distribution?</h3>

To find the p-value of the t-distribution, three information, which are the inputs on the calculator are needed:

The test statistic.

The number of degrees of freedom.

The tail of the test.

In this problem, we have that:

The test statistic is of t = -1.788.

The number of degrees of freedom is of 10.

We are testing if the mean is less than a value, hence we have a left-tailed test.

Hence, using a calculator, it is found that the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

6 0

10 months ago

Simply 6-4 root 3/ 6+4 root 3 by ratnolising the denominator

Inessa [10]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

the question asks us to rationalise the given expression !

so let's start ~

$\frac{6 - 4 \sqrt{3} }{6 + 4 \sqrt{3} } \\ \\ \implies \: \frac{6 - 4 \sqrt{3} }{6 + 4 \sqrt{3} } \: \times \: \frac{6 - 4 \sqrt{3} }{6 - 4 \sqrt{3} } = \frac{(6 - 4 \sqrt{3}) {}^{2} }{6 {}^{2} - 4 \sqrt{3} {}^{2} } \\ \\ \implies \frac{\: 6 {}^{2} + 4 \sqrt{3} {}^{2} - (2 \times 6 \times 4 \sqrt{3} )}{36 - 48} \\ \\ \implies \: \frac{36 + 48 - 48 \sqrt{3} }{ - 12} \\ \\ \implies \: \frac{84 + 48 \sqrt{3} }{ - 12} \\ \\ \implies \: \frac{ \cancel{- 12}(7 - 4 \sqrt{3} )}{ \cancel{ - 12} } \\ \\ \implies \: 7 - 4 \sqrt{3}$

hope helpful :D

3 0

1 year ago

Read 2 more answers