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Bas_tet [7]
3 years ago
6

Shelia walks 2.75 km every Monday. If

Mathematics
1 answer:
sasho [114]3 years ago
7 0

Answer:

22km

Step-by-step explanation:

As Sheila only walks 2.75 km one day out of the week, then she walks 2.75km/week. Because of this, the answer can be found by multiplying 2.75 by 8.

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Fill in the blanks below to make a true statement. In a binomial experiment with n trials and probability of success p, if np (1
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Answer:

\mu_{x}=np

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Step-by-step explanation:

∵ When x is a random variable having distribution B(n, p), then for sufficiently large value of n, the following random variable has a standard normal distribution,

\frac{x-\mu}{\sigma}\sim N(0,1)

Where,

\mu=np

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Here the variable X has a binomial distribution,

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\mu_{X} = np

And, variance of variable X is,

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4 years ago
To solve this system of equations, Ayana isolated y in the first equation and then substituted for y in the second equation. Wha
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Answer:

B.) x² + 3x = 4

Step-by-step explanation:

To find the answer, you need to (1) isolate "y" in the first equation and then (2) plug the rearranged first equation into the second equation.

<u>(Step 1)</u>

2y = 6x                     <----- Original first equation

y = 3x                        <----- Divide both sides by 2

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x² + (3x) = 4              <----- Plug 3x in for "y"

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1

Step-by-step explanation:

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