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julia-pushkina [17]
3 years ago
15

Mindie tosses a coin 50 times and gets 32 heads. Adam tosses the same coin 50 times and gets 28 heads. Cam tosses the coin 50 ti

mes and gets 21 heads. Jade tosses the coin 50 times and gets 24 heads.Use the result to predict the number of heads in 1,000 tosses.
Mathematics
1 answer:
kifflom [539]3 years ago
7 0
Ok, so first you know that each number is out of 50, so to find a percentage you double each number: 64,56,42,48. Now find the mean (add all numbers together and divide by the amount of numbers: 64+56+42+48=52.5. This means the average percentage of heads is 52.5. Now you just need to find 52.5% of 1,000. That's 525. So the answer is 525. Your welcome :)
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Can I have help with the question
sleet_krkn [62]

Answer:

Midpoint = (3.5, 4.5)

Perpendicular bisector = y =  \frac{7}{9} x + \frac{16}{9}

Step-by-step explanation:

[] We can solve this using the midpoint formula:

-> See attached

[] Plug-in our coordinates and solve:

(\frac{7+0}{2} ,\frac{0+9}{2} )=(\frac{7}{2} ,\frac{9}{2} )=(3.5,4.5 )

[] Now we will find the slope to solve for the perpendicular bisector.

-> We will use slope-intercept form, see attached

\frac{9-0}{0-7}=\frac{9}{-7}

-> The slopes of two perpendicular lines are negative reciprocals of each other, so \frac{7}{9} will be the slope of or perpendicular bisector

-> Now we can solve for the equation by using y – y1 = m ( x – x1), were y1 and x1 are the coordinates of our midpoint

y - 4.5 = \frac{7}{9} (x-3.5)

y - 4.5 = \frac{7}{9} x-\frac{49}{18}

y = \frac{7}{9} x-\frac{49}{18} + 4.5

y =  \frac{7}{9} x + \frac{16}{9}

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

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