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3 years ago

8

2(n + 17) /8 = 3/8 PLS HELP I WILL GIVE BRAINLY!

1 answer:

GrogVix [38]3 years ago

7 0

*Answer:*

n = -31/2 ( - means minus btw )

Step-by-step explanation:

Cancel terms that are in both the numerator and denominator

then Multiply all terms by the same value to eliminate fraction denominators

then you Cancel multiplied terms that are in the denominator

Multiply the numbers

Subtract

17 from both sides of the equation

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A random sample of n measurements is drawn from a binomial population with probability of success . Complete parts a through d b

Dima020 [189]

Complete question :

A random sample of n = 83 measurements is drawn from a binomial population with probability of success 0.4 . Complete parts a through d below. a. Give the mean and standard deviation of the sampling distribution of the sample proportion, . The mean of the sampling distribution of is nothing. The standard deviation of the sampling distribution of is nothing.

Answer:

Mean = 33.2000

Standard deviation = 4.4632

Step-by-step explanation:

Given that :

Sample size (n) = 83

Probability of success (p) = 0.4

q = p' = (1 - p) = 1 - 0.4 = 0.6

The mean of the sampling distribution :

Sample size * probability of success

n * p = 83 * 0.4 = 33.2000

The standard deviation of the sampling distribution :

σ=√(sample size * probability of success * (1 - p))

σ = √n * p * (1 - p)

σ = √(83 * 0.4 * 0.6)

σ = √19.92

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σ = 4.4632

4 0

3 years ago

On Saturday, Mark sold 2 7/8 gallons of lemonade.

Trava [24]

Answer:

<em>Regan sold </em> $\mathbf{\frac{23}{12}}$ <em> gallons of lemonade</em>

Step-by-step explanation:

<u>Operations with Fractions</u>

Mark sold $2\frac{7}{8}$ gallons of lemonade.

Regan sold $\frac{2}{3}$ as much lemonade as Mark

We can find the portion of lemonade Regan sold by multiplying both fractions. But first, we must convert to improper fraction:

$2\frac{7}{8}=2+\frac{7}{8}=\frac{23}{8}$

Now we multiply:

$\frac{23}{8}\cdot \frac{2}{3}=\frac{46}{24}=\frac{23}{12}$

Regan sold $\mathbf{\frac{23}{12}}$ gallons of lemonade

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3 years ago

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ruslelena [56]

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3 years ago

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Given:

The given expression is:

$(-4x+9)^2$

According to Kylie,

$(-4x+9)^2=(-4x)^2+(9)^2$

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To find:

The correct statement for Kylie's explanation.

Solution:

We have,

$(-4x+9)^2$

According to the perfect square trinomial $(a+b)^2=a^2+2ab+b^2$ .

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Step-by-step explanation:

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