All categories

3 years ago

Find the diameter and circumference of a circle with the radius of 13.1 km.

1 answer:

4 0

R = 13.1
so
diameter = 13.1 x 2 = 26.2 km
circumference = 2 pi r = 26.2 pi km
or
circumference = 26.2 x 3.14 = 82.27 km

You might be interested in

Define fn : [0,1] --> R by the

sasho [114]

Answer:

The sequence of functions $\{x^{n}\}_{n\in \mathbb{N}}$ converges to the function

$f(x)=\begin{cases}0&0\leq x$ .

Step-by-step explanation:

The limit $\lim_{n\to \infty }c^{n}$ exists and converges to zero whenever $\lvert c \rvert$ . But, if $c=1$ the sequence $\{c^{n}\}$ is constant and all its terms are equal to $1$ , then converges to $1$ . Using this result, consider the sequence of functions $\{f_{n}\}$ defined on the interval $[0,1]$ by $f_{n}(x)=x^{n}$ . Then, for all $0\leq x$ we have that $\lim_{n\to \infty}x^{n}=0$ . Now, if $x=1$ , then $\lim_{n\to \infty }x^{n}=1$ . Therefore, the limit function of the sequence of functions is

$f(x)=\begin{cases}0&0\leq x$ .

To show that the convergence is not uniform consider $0$ . For any $n>1$ choose $x\in (0,1)$ such that $\varepsilon^{1/n}$ . Then

$\varepsilon$

This implies that the convergence is not uniform.

8 0

3 years ago

A bag contains 5 black marbles, 7 blue marbles, 3 green marbles, 4 red marbles, and 1 white marble. A marble is selected and the

schepotkina [342]

Answer:

2/25

Step-by-step explanation:

It will be 20/400 + 12/400

=2/25

5 0

3 years ago

There is a line whose slope is 1/6 and whose y-intercept is 4. what is its equation in slope intetecept form?

Stolb23 [73]

Answer:
y = $\frac{1}{6}$ x + 4

Explanation:
The equation of the lone has a general formula:
y = mx + c
where:
m is the slope of the line = 1/6
c is the y-intercept = 4

Substitute with the givens in the above formula to get the equation as follows:
y = mx + c
y = $\frac{1}{6}$ x + 4

Hope this helps :)

6 0

3 years ago

Read 2 more answers

What’s the circumference of a circle with a diameter of 9 inches? Use 13.14 for n

Oksanka [162]

Answer:

28.26 inches

Step-by-step explanation:

The circumference of a circle is $\pi d$ , where d = diameter. In this case, we use pi as 3.14 and the diameter as 9.