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Dafna11 [192]
3 years ago
13

Emily is tossing a fair coin. She tosses the coin 9 times, and it lands on tails 8 times. If Emily tosses the coin a tenth time,

what is the probability that it will land on tails?
Mathematics
2 answers:
alukav5142 [94]3 years ago
5 0

Answer:

Step-by-step explanation:

0.5^9

grin007 [14]3 years ago
5 0

Answer:

1/2. this is because a coin has 2 sides and it's a 50% percent chance it will land on either side and 50% is another term for 1/2. hope this helped

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Once each day, Erika tracks the depth of the water in her local creek. Her first nine measurements, in inches, are: 16, 15, 13,
solniwko [45]

Answer:

Median = 13

Step-by-step explanation:

We are given the following data:

16, 15, 13, 12, 17, 14, 11, 9, 11

Formula:

Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}

Sorted data: 9, 11, 11, 12, 13, 14, 15, 16, 17

Median =

=\dfrac{9+1}{2}^{th} = 5^{th}\text{ term} = 13

Thus, the median of the given data is 13.

4 0
3 years ago
Is (0,1) , (1,3) , (2,5), (3,7) a function?​
igomit [66]

Answer:

9

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which set is finite?
Tanzania [10]
Hello,

Answer A is the only finite set.
8 0
3 years ago
A tv costs £800 plus VAT at 20% what is the total cost of the tv?
slamgirl [31]

hello friend ☺

Given :

TV cost = 800 £

VAT = 20 %

Amount of VAT

= 20% of 800

= 800 × 20 /100

= 160 £

So Total cost of TV

= original price + VAT

= 800 + 160

= 960 £

Thanks ❤

5 0
3 years ago
which expression represents purely real numbers and which expression represents non-real complex number?​
Lyrx [107]

Answer:

Step-by-step explanation:

Complex numbers are the numbers represented by the expression = a + bi

Here a = real part of the number

bi = imaginary part

a and b are the real numbers.

i^9=(i^2)^4.(i)

    =(-1)^{4}.i [Since, i^2=-1]

    =i

Therefore, its a non real complex number.

2 - \sqrt{-49} = 2-\sqrt{(-1)(7)^2}

               = 2-7\sqrt{-1}

               = 2-7i

This number is a Non real complex number.

\sqrt{(-18)^2}=18\sqrt{-1}

              = 18i

It's a non real complex number.

3 + 2i

It's a non real complex number.

-289

It's a purely real number.

4-32i^2=4-32(-1)

             = 4 + 32

             = 36

It's a purely real number.

6 0
2 years ago
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