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denpristay [2]
3 years ago
13

If you flip two coins at once, will at least one coin land on heads?

Mathematics
1 answer:
anzhelika [568]3 years ago
4 0

Answer:

There is 3 out of 4 chance you will get one head.

You are not guaranteed to get a head

Step-by-step explanation:

Lets determine the sample space

HH  HT  TH  TT

These are the 4 things that can happen when we flip to coins

We want at least one head

3 of the 4 choices have at least 1 head

P (at least one head) = 3/4

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Which of the following is not a way to represent the solution of the inequality 2(x − 1) greater than or equal to −12?
grandymaker [24]
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2x - 2 > = -12
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wrong solution would be B. x less then or equal to -5....because x is greater then or equal to -5


5 0
2 years ago
When using the rational root theorem, which of the following is a possible root of the polynomial function below f(x)=x^3-5x^2-1
uranmaximum [27]

Answer:

\Large \boxed{\sf \ \ 7 \ \ }

Step-by-step explanation:

Hello, please consider the following.

The polynomial function is

x^3-5x^2-12x+14

The rational root theorem states that each rational solution

   x=\dfrac{p}{q}    

, written in irreducible fraction, satisfies the two following:

   p is a factor of the constant term

   q is a factor of the leading coefficient

In this example, the constant term is 14 and the leading coefficient is 1. It means that p is a factor of 14 and q a factor of 1.

Let's proceed with the prime factorisation of 14:

14 = 2 * 7

Finally, the possible rational roots of this expression are :

   1

   2

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and we need to test for negative ones too

   -1

   -2

   -7

   -14

From your list, the correct answer is 7.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

7 0
3 years ago
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adoni [48]
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: . \frac{9}{5}  *   \frac{1}{3}  =  \frac{3}{5}
6 0
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If it takes it 1 hour for 3 meters...

12 ÷ 3 = 4.

It would take 4 hours for the water level to change to 12 meters.

3 0
3 years ago
Read 2 more answers
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