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3 years ago

Select the property of equality used to arrive at the conclusion.

Mathematics

2 answers:

Tpy6a [65]3 years ago

8 0

Its the multiplication property of equality.

Ghella [55]3 years ago

7 0

is the a D to the awnsers

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A bottle maker believes that 14% of his bottles are defective. If the bottle maker is accurate, what is the probability that the

Hitman42 [59]

Answer:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

Step-by-step explanation:

For this case we know the following info given:

$p =0.14$ represent the population proportion

$n = 622$ represent the sample size selected

We want to find the following proportion:

$P(\hat p$

For this case we can use the normal approximation since we have the following conditions:

i) np = 622*0.14 = 87.08>10

ii) n(1-p) = 622*(1-0.14) =534.92>10

The distribution for the sample proportion would be given by:

$\hat p \sim N (p ,\sqrt{\frac{p(1-p)}{n}})$

The mean is given by:

$\mu_{\hat p}= 0.14$

And the deviation:

$\sigma_{\hat p}= \sqrt{\frac{0.14*(1-0.14)}{622}}= 0.0139$

We can use the z score formula given by:

$z=\frac{\hat p -\mu_{\hat p}}{\sigma_{\hat p}}$

And replacing we got:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

4 0

3 years ago

True or false the in-center of a triangle is the point equidistant from each side of the triangle

Viktor [21]

Answer:

True.

Step-by-step explanation:

Let's see the definition of in-center of a triangle.

The in-center of a triangle is a point located in the center of the triangle. It is equal distance from all sides of the triangle.

Therefore, it is True.

If we draw line segments from in-center to each vertex of the triangle, it will bisect the angles.

Herewith I have attached the figure for your reference.

3 0

3 years ago

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-7(-2a+6)=2a-6(-a+7)

Alenkinab [10]

Answer:

$a=0$

Step-by-step explanation:

$-7(-2a+6)=2a-6(-a+7)$

$14a-42=2a+6a-42$

$14a-42=8a-42$

$6a-42=-42$

$6a=0$

$a=0$

6 0

3 years ago

How do you write 9,800,100 in exponents and expanded form

Leokris [45]

In exponents it could be 3130.51114^2, 213.998224 and 55.95097086
Happy to Help!

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3 years ago

List 75% , 1/6 , 3/8 , and 0.625 from least to greatest . :) PLZ HELP

alexandr1967 [171]

1/6, 2/8, .625, 75% :)))

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3 years ago

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