All categories

2 years ago

What’s the circumference of a circle with a diameter of 25 inches? Use 3.14 for pie

Mathematics

2 answers:

mojhsa [17]2 years ago

7 0

Answer:

$\star \: \red{circumference _{(circle)} = \pi \: d}$

$\star \: \red{circumference _{(circle)} = 3.14 \times 25 inches}$

$\star \: \red{circumference _{(circle)} = 78.5 inches}$

$\blue{\frak{saraaaaaaaaahhhh}}$

Kipish [7]2 years ago

5 0

Answer:

Circumference=78.5inches

Step-by-step explanation:

$Solution,\\Diameter=25 inches\\Now,\\Circumference=\pi d\\Circumference=3.14*25inches=78.5inches$

You might be interested in

In a neighborhood 60% of the houses have a garage and a fenced in backyard. Given that 80% of the houses in the neighborhood hav

Tpy6a [65]

The correct answer will be 75 for anyone wondering

8 0

3 years ago

Read 2 more answers

7/4 as a whole number

Ne4ueva [31]

1 1/4?? because 7/4 cant be a whole number its a mixed number when simplified

5 0

3 years ago

A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-tim

Marat540 [252]

We are asked to determine the correlation factor "r" of the given table. To do that we will first label the column for "Quality" as "x" and the column for "Easiness" as "y". Like this:

Now, we create another column with the product of "x" and "y". Like this:

Now, we will add another column with the squares of the values of "x". Like this:

Now, we add another column with the squares of the values of "y":

Now, we sum the values on each of the columns:

Now, to get the correlation factor we use the following formula:

$r=\frac{n\Sigma xy-\Sigma x\Sigma y}{\sqrt{(n\Sigma x^2-(\Sigma x)^2)(n\Sigma y^2-(\Sigma y)^2)}}$

Where:

$\begin{gathered} \Sigma xy=\text{ sum of the column of xy} \\ \Sigma x=\text{ sum of the column x} \\ \Sigma y=\text{ sum of the column y} \\ \Sigma x^2=\text{ sum of the column x\textasciicircum2} \\ \Sigma y^2=\text{ sum of the column y\textasciicircum2} \\ n=\text{ number of rows} \end{gathered}$

Now we substitute the values, we get:

$r=\frac{\left(6)(70.56)-(25.2)(16.4\right)}{\sqrt{((6)(107.12)-(25.2)^2)((6)(47.82)-(16.4)^2)}}$

Solving the operations:

$r=0.858$

Therefore, the correlation factor is 0.858. If the correlation factor approaches the values of +1, this means that there is a strong linear correlation between the variables "x" and "y" and this correlation tends to be with a positive slope.

7 0

1 year ago

select the three objectives mosquitoes hovered around the small puddle of still murky water in the background

gayaneshka [121]

Answer:

Step-by-step explanation:

6 0

3 years ago

What's the standard equation of the circle with the general equation x2 + y2 + 4x – 2y – 20 = 0? answers: 1) (x + 2)2 + (y – 1)2

gizmo_the_mogwai [7]

Answer:

4). (x + 2)^2 + (y - 1)^2 = 25.

Step-by-step explanation:

x^2 + y^2 + 4x - 2y - 20 = 0

x^2 + 4x + y^2 - 2y = 20

Completing the square on the x and y terms:

(x + 2)^2 - 4 + (y - 1)^2 - 1 = 20

(x + 2)^2 + (y - 1)^2 = 20 + 4 + 1

(x + 2)^2 + (y - 1)^2 = 25.

3 0

3 years ago