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Setler79 [48]
3 years ago
10

Find the probability of 2 heads when flipping 3 coins

Mathematics
2 answers:
Olegator [25]3 years ago
7 0
2/6 is the answer 1/2 1/2 0/2
kkurt [141]3 years ago
3 0
Hello there,

So there are three coins and you have 50 50 chance of getting heads or tails 

There are 8 possible outcomes. HHH, HHT, HTT, HTH, THH, THT, TTH, TTT

So concluding that statement there is a 3/8 chance of getting 2 heads while flipping 3 coins. 

Hope this helps you! 
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AfilCa [17]

so whats the question

7 0
3 years ago
I really need help with this one it's due today!!
baherus [9]

Answer:

-2/3

3/2

Step-by-step explanation:

So to have a line parallel the equation is: m1 = m2, meaning the slope (represented by m in this equation) is equal. So in the equation. 3y = - 2x + 4 you need to simplify the equation by dividing both sides by 3. Which would be like so: y = - 2/3x + 4/3, which the slope will be -2/3.

To be perpindicular you need the slope to be: m1 * m2 = - 1. So because we already know that the slope is -2/3, all we need to do is set up an equation: -2/3 * y = - 1

-2/3y = - 1

multiply both sides by 3/-2

y = 3/2

4 0
3 years ago
-10 is both rational number and integer
insens350 [35]

Yes, that's quite true.  It's also a real number, and a negative number.

Did you have a question to ask ?


6 0
3 years ago
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An item is regularly priced at $50. It is on sale for 40% off the regular price. What is the sale price?
frez [133]

Answer:

30 dollars

Step-by-step explanation:

40% of 100 = 40. 40% of 50 = 20. 50-20 = 30.

8 0
3 years ago
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Banabas must pay his ex-wife an amount of R350 000 in two years’ time. Calculate the amount that he must invest today to have th
White raven [17]

Answer:

He must invest R297 521 today.

Step-by-step explanation:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Banabas must pay his ex-wife an amount of R350 000 in two years’ time.

This means that t = 2, A(t) = 350000

Interest rate of 8.15% per annum compounded monthly:

This means that r = 0.0815, n = 12.

Amount he must invest today:

This is P. So

A(t) = P(1 + \frac{r}{n})^{nt}

350000= P(1 + \frac{0.0815}{12})^{2*12}

P = \frac{350000}{(1 + \frac{0.0815}{12})^{2*12}}

P = 297521

He must invest R297 521 today.

4 0
3 years ago
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