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tatuchka [14]
3 years ago
10

Given there's 5 red balls and 2 blue balls. What's the probability that after two picks we have a red ball and a blue ball

Mathematics
1 answer:
Svetach [21]3 years ago
5 0

Answer:

the answer is 58 dear because there he couldn't figure out what he meant

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Rose can run 4 miles in 56 minutes how many miles does Rosa run if she runs for 42 minutes
kogti [31]
\frac{56}{42} = \frac{4}{x}  then you figure out what you divide 56 by to get 4. which is 14. then you divide 42 by the same number 14.

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The width x of your iris decreases from 4 millimeters to 2 millimeters when you enter a dark room. How many times greater is the
inysia [295]

Answer:

The area of the Iris is 4 times greater.

Step-by-step explanation:

Firstly, we have to realize that we cannot solve this problem without knowing the radius of the iris. because from the information given, the radius of the iris could well be the size of the galaxy and contract from width of 4mm to 2mm and we wouldn't know!

The average radius of the iris is 6mm, so we take this value.

Now, initially the width of the iris is 4mm, that means the radius of the pupil is:

6mm-4mm=2mm

Therefore it's area A is:

A=\pi r^2=\pi (2)^2=4\pi

When the iris contracts to 2mm, the radius of the pupil becomes:

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Then it's area is A:

A=\pi r^2=\pi (4)^2=16\pi

To find how many times greater this final area is than the initial area, we just divide it by the initial area:

\frac{16\pi }{4\pi } =4

This is 4 times greater than the initial area.

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How many more quarters are in $4.50 than in mexican pasos
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76.39

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$4=76.39 paysos

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Zane buys a standard class train ticket.
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Step-by-step explanation:

15 / 100 × 34

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