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kherson [118]
3 years ago
7

The ratio of the walking speeds of three people

Mathematics
1 answer:
Blababa [14]3 years ago
6 0

3 : 4 : 5 = 3² : 4² : 5² = 9 : 16 : 25

The answer is B.

Hope this helps.

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For a segment of a radio show a disc jockey can play 10 records. If there are 12 records to select from in how many ways can the
sveta [45]

Answer:

<h2>66 different ways </h2>

Step-by-step explanation:

This is a combination question. Combination has to do with selection. For example if r objects are to be selected from n pool of oblects, this can be done in nCr number of ways.

nCr = n!/(n-r)r!

According to the question, if a radio show can only play 10 records out of 12 records available, this can be done in 12C10 number of ways.

12C10 = 12!/(12-10)!10!

= 12!/2!10!

= 12*11*10!/2*10!

= 12*11/2

= 6*11

= 66 different ways

7 0
3 years ago
Convert the fraction 3/11 to a decimal using long division
Dvinal [7]

0.27

so three divided by eleven is 0.27272727272727272727272727272727........so on and so forth. 

7 0
3 years ago
Martin wants to use coordinate geometry to prove that the opposite sides of
romanna [79]

The correct answer is option A which is the distance between A and D will be  AD = \sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b.

<h3>What is coordinate geometry?</h3>

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

The formula utilised to find the distance between two points is;-

X = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2

We have the coordinates of the point A = (0, 0) and D is  (0, b).By applying the formula to find the distance between A and D.

AD = \sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b.

Therefore the correct answer is option A which is the distance between A and D will be  AD = \sqrt{(0-0)^2-(b-0)^2}=\sqrt{b^2}=b.

To know more about Coordinate geometry follow

brainly.com/question/18269861

#SPJ1

4 0
2 years ago
Which system of linear equations has no solution?
Nesterboy [21]
Your answer is c i pretty insurance

5 0
3 years ago
The answers are 2x1/3 , 3x1/3, 5x1/3or 4x1/3
Oxana [17]

Answer:

what is the question? Please ask a question.

6 0
3 years ago
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