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Amiraneli [1.4K]
2 years ago
9

Flip a coin 20 times. Tell me your experimental probability of flipping heads. ___

Mathematics
2 answers:
pav-90 [236]2 years ago
4 0

Answer:

1/2 is the probability

Step-by-step explanation:

trasher [3.6K]2 years ago
3 0

Answer:

50%

Step-by-step explanation:

If you flip it 20 times and you don't know what you flip it to each time, it would mean that you would theoretically flip it 10 times to tails and 10 to heads. The answer is 50%

I AM NOT SURE IF THIS IS CORRECT. AGAIN, I AM NOT SURE!

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nexus9112 [7]

Answer:

0.125

Step-by-step explanation:

I calculated 2 divided by 16, and got 0.125.

5 0
2 years ago
Using a phone card to make a long distance call costs a flat fee of $0.57 plus $0.31 per minute starting with the first
aliina [53]

Answer:

it's d

Step-by-step explanation:

multiply 0.31 by the amount of minutes used (27) and add the flat fee to it.

0.31×27+(0.57)= 8.94

7 0
2 years ago
The following statement are true about complex fraction,except?​
Paraphin [41]
You didn’t even put the choices...
3 0
3 years ago
Read 2 more answers
A 1200 kg car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to
tangare [24]
When the car is moving, it has Kinetic Energy. As soon as the car entercount with the spring, its Kinetic Energy will transfer to Elastic Potential Energy. 

<span>KE = EPE </span>
<span>1/2mv^2 = 1/2kx^2 </span>

<span>change the speed into m/s </span>
<span>50 km/hr = 13.9 m/s </span>

<span>1/2(1200)(13.9)^2 = 1/2k(2.2)^2 </span>

<span>now you do the math to solve for k.
k= 115926/2.42
K= 47903.30</span>
8 0
2 years ago
The distance from Wakefield to London is 180 miles. A train travels this distance in 2 hours 15 minutes. Calculate the average s
Readme [11.4K]

Answer:

v = 80 mph

Step-by-step explanation:

Given that,

The distance from Wakefield to London is 180 miles.

The train travels this distance in 2 hours 15 minutes.

We need to find the average speed of the train. The average speed of the train is equal to the total distance covered divided by the time taken.

v=\dfrac{d}{t}\\\\v=\dfrac{180\ miles}{(2+\dfrac{15}{60})\ h}\\\\v=80\ mph

So, the required average speed of the train is 80 mph.

4 0
2 years ago
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