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sergeinik [125]
3 years ago
13

How do you find the radius of circles?

Mathematics
2 answers:
Andrei [34K]3 years ago
8 0

Answer:

1.The radius to circumference formula is: C = 2πr.

2.The formula for radius to area is: A = πr2.

3. If you need to go from radius to diameter, multiply radius times 2 : d = 2r.

Step-by-step explanation:

Ber [7]3 years ago
8 0

Answer: The radius of the circle is 3.5 feet. You can also use circumference and the radius equation.

Step-by-step explanation: i hope this helps! have a yummy cookie day!

◑﹏◐

You might be interested in
jada surveyed all the 7th and 8th graders at her school abouth whether they had pets. Complete the missing entries in this two w
REY [17]

Here is the completed table:

                               Has pet     Has no pet      Total

7th grade                102            48                       150

8th grade                107            68                      175  

Total                          209           116                     325

<h3>What is a two-way table?</h3>

A two way table is used to show the frequency of two categorical variables. Information are usually presented in rows and columns.

  • The 7th grade students that have no pets = 150 - 102 = 48
  • The 8th grade students that have pets = 175 - 68 = 107
  • Total students that have pets = 102 + 107 = 209
  • Total students that have no pets = 48 + 68 = 116
  • Total = 209 + 116 = 325

Please find attached the table. To learn more about addition, please check: brainly.com/question/19628082

3 0
2 years ago
Is 48x + 43 = 47x + 43 a no solution , one solution, or infinitely many solution
laiz [17]

The answer looks like it would be no solution because if you do 48x- 47x= 1x and 43-43=0 and 1x does not equal 0

6 0
3 years ago
Read 2 more answers
Universal Studios is looking to expand in Ontario. The new theme park will be located equidistant to
sukhopar [10]
<h3>Answer:  (2, 3)</h3>

===============================================

Explanation:

For now, we're only going to consider Newmarket and Markham, which are points N and M respectively.

Let's find the slope of line NM through use of the slope formula.

m = (y2-y1)/(x2-x1)

m = (3-8)/(7-2)

m = -5/5

m = -1

Line NM has a slope of -1. Its perpendicular slope is +1 or just 1.

Rule: If the slopes multiply to -1, then the lines are perpendicular.

Or you can apply the negative reciprocal rule to go from -1 to 1.

We'll keep this perpendicular slope in mind for later.

----------------

Now let's find the midpoint of points N and M.

Add up the x coordinates and divide by 2: (x1+x2)/2 = (2+7)/2 = 4.5

Do the same for the y coordinates:  (y1+y2)/2 = (8+3)/2 = 5.5

The midpoint of N and M is at (4.5, 5.5)

The perpendicular line must go through these two points. I'm going to skip a few steps here, but basically we go from y = mx+b to y = x+1 after plugging in those x,y values and the perpendicular m we found earlier.

--------------------

In short, the perpendicular bisector for line segment NM is the equation y = x+1.

If you follow the same steps as the previous two sections, but you apply them for points M and V instead, then you should find that the perpendicular bisector is y = -3x+9. I'm skipping steps here as well.

----------------------

At this point, we have the system of equations

\begin{cases}y = x+1\\y = -3x+9\end{cases}

Let's use substitution to solve for x and y

y = x+1

-3x+9 = x+1

-3x-x = 1-9

-4x = -8

x = -8/(-4)

x = 2

y = x+1

y = 2+1

y = 3

So together, x = 2 and y = 3 pair up to get the ordered pair solution (x,y) = (2,3)

This is the location where the theme park should be placed. Let's say that C = (2,3). I'm using C for center.

You can use the distance formula to confirm that segments CN, CM and CV are all the same length, which would verify that point C is equidistant from all the other points. Furthermore, it means that points N, M and V are all on the same circle centered at C.

I know it says not to use a graph, but it still helps to see what's going on. Also, it's a handy way to confirm the answer. I used GeoGebra to make the graph. See the diagram below.

Side note: you only need 2 perpendicular bisectors to find point C. You could use three, but that's overkill since they all intersect at the same location.

7 0
2 years ago
Urgent!! please help )):​
alisha [4.7K]

The 16th term is: 53

Further explanation:

We have to find the general formula first

The general form is:

a_n=a_1+(n-1)d\\Given\\a_1=8\\d=3\\Putting\ the\ values\ in\ the\ formula\\a_n=8+(n-1)(3)\\a_n=8+3n-3\\a_n=5+3n\\For\ 16th\ term, put\ n=16\\a_n=5+3(16)\\a_n=5+48\\a_n=53

The 16th term is: 53

Keywords: Arithmetic sequence, Common Difference

Learn more about arithmetic sequence at:

  • brainly.com/question/5510873
  • brainly.com/question/5461619

#LearnwithBrainly

4 0
3 years ago
What is the gcf for 13 and 17
Yanka [14]

Answer:  GCF of 13 and 17 is 1. 2.

Step-by-step explanation: Greatest common factor (GCF) of 13 and 17 is 1. We will now calculate the prime factors of 13 and 17, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13 and 17.

8 0
3 years ago
Read 2 more answers
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