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Marta_Voda [28]
4 years ago
13

Find value of each of the following 11+(-33)-(-7)

Mathematics
1 answer:
Dominik [7]4 years ago
5 0

Answer:

= 11-33+7

= 11+7-33

= 18-33

= -15

Step-by-step explanation:

if we multiple + by - then it becomes -

if we multiple - by - then it becomes +

by this way I have done

I hope this will help u .

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The figure below is a square. If m2AEB = (5x + 15)°, what is the value of x?
marishachu [46]

Answer: x = 25

Step-by-step explanation: im pretty sure you would square 5 and get 25 then 15 and get 225, then you would divide those two numbers 225 and 25 and get 25

7 0
3 years ago
One day, thirteen babies are born at a hospital. assuming each baby has an equal chance of being a boy or girl, what is the prob
Nadya [2.5K]

Using the binomial distribution, there is a 0.9983 = 99.83% probability that at most eleven of the thirteen babies are girls.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

For this problem, the values of the parameters are:

p = 0.5, n = 13

The probability that at most eleven of the thirteen babies are girls is:

P(X \leq 11) = 1 - P(X > 11)

In which

P(X > 11) = P(X = 12) + P(X = 13)

Then:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 12) = C_{13,12}.(0.5)^{12}.(0.5)^{1} = 0.0016

P(X = 13) = C_{13,13}.(0.5)^{13}.(0.5)^{0} = 0.0001

So:

P(X > 11) = P(X = 12) + P(X = 13) = 0.0016 + 0.0001 = 0.0017

P(X \leq 11) = 1 - P(X > 11) = 1 - 0.0017 = 0.9983

0.9983 = 99.83% probability that at most eleven of the thirteen babies are girls.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0
2 years ago
I suck at algebra, please help me! ;o;
Irina18 [472]

Answer:

x = 5/9

Step-by-step explanation:

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We need to get a common denominator of 9

1/3 * 3/3 +x = 8/9

3/9 + x = 8/9

Subtract 3/9 from each side

3/9 - 3/9 +x = 8/9 - 3/9

x = 5/9

3 0
3 years ago
Please help by giving me the 3 digit code and a explanation.
Tresset [83]

Answer:   281

Step-by-step explanation:

5 0
3 years ago
Marshall has $700 in an account that earns 13% interest compounded annually.
hoa [83]
53.84 i’m pretty sure
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