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Assoli18 [71]
3 years ago
12

3. Write an equation for the model below.

Mathematics
1 answer:
Korvikt [17]3 years ago
5 0

Answer:

0

Step-by-step explanation:

-10

-9

-8

-7

-6

-5

-4

-3

-2

-1

+0

+1

+2

+3

+4

+5

+6

+7

+8

+9

+10



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A fair coin is flipped twelve times. What is the probability of the coin landing tails up exactly nine times?
seraphim [82]

Answer:

P\left(E\right)=\frac{55}{1024}

Step-by-step explanation:

Given that a fair coin is flipped twelve times.

It means the number of possible sequences of heads and tails would be:

2¹² = 4096

We can determine the number of ways that such a sequence could contain exactly 9 tails is the number of ways of choosing 9 out of 12, using the formula

nCr=\frac{n!}{r!\left(n-r\right)!}

Plug in n = 12 and r = 9

       =\frac{12!}{9!\left(12-9\right)!}

       =\frac{12!}{9!\cdot \:3!}

       =\frac{12\cdot \:11\cdot \:10}{3!}            ∵ \frac{12!}{9!}=12\cdot \:11\cdot \:10

       =\frac{1320}{6}                   ∵ 3!\:=\:3\times 2\times 1=6

       =220

Thus, the probability will be:

P\left(E\right)=\frac{n\left(E\right)}{n\left(S\right)}

         =\frac{220}{4096}

         =\frac{55}{1024}

Thus, the probability of the coin landing tails up exactly nine times will be:

P\left(E\right)=\frac{55}{1024}

4 0
3 years ago
A bicycle manufacturing company makes a particular type of bike. Each child bike requires 4 hours to build and 4 hours to test.
marta [7]
The answer is A
there is not enough hours to build everything and A has the right equation
8 0
2 years ago
Read 2 more answers
What is the absolute value of -250?
Andrei [34K]

Answer:

250

Step-by-step explanation:

Pretty much every time it asks for the abasloute value it just asks how much to get the zero on the number line. It will ALWAYS be positive. For example -5 will be 5 to get to zero on the numberline. Same thing with a positive 5.

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Is each question Statistical or Not statistical to classify each question.
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Q 1. 1,776 and  1,396

q 2. 1,250

q 3. 3.5 million
7 0
3 years ago
Find the slope of the line containing the points (4, -7) and (6,-8).
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-1/2 ans. Hope it helps..
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