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Nadya [2.5K]
3 years ago
5

Suppose a coin is tossed 100 times. about how many times would you expect to get heads?

Mathematics
1 answer:
klasskru [66]3 years ago
7 0

The coin should land on heads around 50 times

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A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods trai
Flauer [41]

The length of the goods train is 270 meters.

Given that, a goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds.

<h3>What is the distance formula with speed and time?</h3>

Speed is defined as the rate at which an object moves from one place to another in a given interval of time. It is a scalar quantity as it defines only the magnitude not the directions of an object moving. The S.I. unit of speed is m/s.

The speed of a moving object can be calculated as Speed = Distance / Time.

Now, to convert km/h to m/sec multiply the measure by 5/18.

That is, 72 × 5/18 = 20 m/sec

Let the length of the train be x metres.

So, then (x+250) / 26 = 20

⇒x+250=520

⇒x=270 meters

Therefore, the length of the goods train is 270 meters.

To learn more about the speed visit:

brainly.com/question/7359669.

#SPJ4

5 0
1 year ago
Can someone please help me out thanks (it's Math , Volume )
Annette [7]

39 * 39 * 39

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It is a cube, all sides are equal distance. If the length is 39 then all the other sides are 39.

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3 years ago
The figure in the picture is made up of 5 congruent squares. If the perimeter of the entire figure is 21.6 cm, find its area.
vovikov84 [41]
Perimeter is length plus width so use that to help you
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3 years ago
What is the sum of the first eight terms of the geometric series 2 + 6 + 18 + 54 + … ?
UkoKoshka [18]
2+6+18+54+162+486+1458+4375=6561

you multiply the previous number by three to find the next value
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3 years ago
Which relationships have the same constant of proportionality between Y and as the equation Y=5/2 X
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Answer:

A and B

Step-by-step explanation:

8 0
3 years ago
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