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Genrish500 [490]
4 years ago
9

If i flip a fair coin six times, what is the probability that three of the flips lands on heads?

Mathematics
2 answers:
aalyn [17]4 years ago
8 0
3/6 which can be 50 percent chances of getting!
jarptica [38.1K]4 years ago
8 0
It would be half,  also known as 50% or in this case 3/6 because there are 6 flips and the probability is 3 flips, which would be half of the 6 total.   



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A researcher investigated the relationship between alcohol intake and reaction time in a driving simulation task. Participants d
Arte-miy333 [17]

Answer:

Alcohol intake

Step-by-step explanation:

The Independent variable also called the predictor variable may be described as the treatment which is given a subject or factors which is expected to induce a change in our measured variable which is called the predicted or dependent variable. During research, the test various factors which are expected to cause a change are the independent variable, whereas, the variable which is measured as a result of the changes caused due to the different independent variables is the dependent variable. In the scenario above, we wish to measure braking speed after the subjects have been given a certain ounce of alcohol, this ounce of alcohol is the treatment which is expected to cause a variation in the braking speed of the participants. Hence, alcohol intake is the independent variable while braking speed is the dependent variable.

5 0
3 years ago
The difference between two numbers is 13. twice the smaller plus three times the larger is 129
finlep [7]

Answer:

18 and 31

Step-by-step explanation:

Let the number be x and y and y be the smaller number

Given

condition 1:

difference between two numbers is 13.

Mathematical expression for this will be

x-y = 13 ( taking x as larger and y as smaller number)

=> x = 13+y   (1)

________________ ____________________________

Condition 2:

twice the smaller plus three times the larger is 129

Twice the smaller is equal as 2y

three times the larger is 3x

according to question

3x+2y = 129

substituting value of x from equation 1 we have

3(13+y) +2y = 129

=> 39+3y+2y = 129

=> 39+5y = 129

=> 5y = 129 - 39 = 90

=> y = 90/5

=> y = 18

Thus, y = 18

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Therefore, two numbers are 18 and 31.

6 0
3 years ago
Explain how you find the perimeter of this right triangle even though you know the lengths of only two of the
aliya0001 [1]

Answer:

Total Perimeter of Triangle: 6.33 + 6 + 2= 14.33

Step-by-step explanation:

First of all, to find the perimeter of a triangle you need to know the measurements of all three sides. When you need to find the measurement of the slanted side, ( or hypotenuse), you need to use the Pythagorean Theorem.

a^2 + b^2 = c^2

Then, we insert the numbers:

2^{2} + 6^{2} =c^2

2^2 = 4

6^2 = 36

So, c^2 = 40 or 40^2

But wait, the number is is still squared, so the square root of 40, is 6.32455532. ( The number rounded is 6.33, or in tenths, 6.3 )

Finally, we add the measurements of all the sides on the triangle to find the perimeter, which is:

14.33 or 14.3

3 0
3 years ago
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