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kherson [118]
3 years ago
5

How do you find the circumference of a circle

Mathematics
2 answers:
Verdich [7]3 years ago
6 0
Measure its diameter 
zloy xaker [14]3 years ago
4 0
To find the circumference of a circle you need to use the following formula...
c=pi(diameter)
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The ratio of the number of boys to the number of girls in a choir is 5 to 4. There are 60 girls in the choir. How many boys are
Ira Lisetskai [31]

Answer:

75

Step-by-step explanation:

for every 5 boys there are 4 girls

60 / 4 = 15

15 * 5 = 75

8 0
3 years ago
The amount of money Chaz earned for walking dogs is given in the table. Can the relationship be described by a constant rate? Ex
mojhsa [17]

Answer:

Yes, the relationship can be described by a constant rate of $18.75 per dog

Step-by-step explanation:

see the attached figure to better understand the problem

Let

x ----> the number of dogs

y ---> the amount of money earned

we have the points

(6,112,50), (8,150), (11,206.25)

step 1

Find the slope with the first and second point

(6,112,50), (8,150)

m=(150-112.50)/(8-6)=18.75

step 2

Find the slope with the first and third point

(6,112,50), (11,206.25)

m=(206.25-112.50)/(11-6)=18.75

Compare the slopes

The slopes are the same

That means, that the three points lies on the same line

therefore

Yes, the relationship can be described by a constant rate of $18.75 per dog

7 0
2 years ago
Rachael can paint a room in 9 hours. Kelsey can paint same room in 15 hours. How long if they paint it together.
ElenaW [278]

Answer:

6 hours

Step-by-step explanation:

because if they work together it will be 9 hours slower than Kelsey's time alone.

not sure if correct

7 0
3 years ago
Read 2 more answers
How to simplify this
algol [13]
To simplify this, you would have to turn b^-2 into a positive exponent.
To do this, we have to flip b^-2, which would get rid of the negate from the exponent: -2

3a^4 b^-2 c^3 / b^-2

Then we get the answer:

3a^4 c^3
------------
   b^-2

I have a picture to clarify! 
I hope this helped, let me know if you don't understand! ^.^

6 0
2 years ago
How to solve complex number problem is x square + 2x +65=0
ad-work [718]
Ill teach you how to do some of these things so you won't be having to use this site 
7 0
3 years ago
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