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3 years ago

Solve for x leave answer as decimal 6/5=x/3

Mathematics

2 answers:

777dan777 [17]3 years ago

8 0

Answer:

3 3/5 =x

3 .6 =x

Step-by-step explanation:

6/5 = x/3

Use cross products

6*3 = 5*x

18 = 5x

Divide each side by 5

18/5 = 5x/5

18/5 =x

3 3/5 =x

Dmitrij [34]3 years ago

8 0

Answer: 3.6 = x

Step-by-step explanation: To solve for x in the given proportion, we simply use the means-extremes property which states the the product of the extremes, (6)(3), equals the product of the means, (5)(x).

So we have (6)(3) or 18 equals (5)(x) or 5x.

So we have the equation 18 = 5x.

Now dividing both sides by 5, 3.6 = x.

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Vsevolod [243]

Answer: Choice A

$\frac{\sqrt{6}+\sqrt{2}}{4}$

========================================================

Work Shown:

$\cos(30) = \frac{\sqrt{3}}{2}$

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$\cos(\frac{30}{2}) = \sqrt{\frac{1+\cos(30)}{2}$

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$\cos(15) = \frac{\sqrt{2+\sqrt{3}}}{2}$

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$\cos(15) = \frac{\sqrt{6}+\sqrt{2}}{4}$

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3 years ago

About % of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9 and z = 0.9 z = 0.9 (or w

prisoha [69]

Using the normal distribution, it is found that 63.18% of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The area within 0.9 standard deviations of the mean is the p-value of Z = 0.9(0.8159) subtracted by the p-value of Z = -0.9(0.1841), hence:

0.8159 - 0.1841 = 0.6318 = 63.18%.

More can be learned about the normal distribution at brainly.com/question/4079902

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2 years ago

Solve each equation. Use models if necessary. Check your solution.

morpeh [17]

so, the right answer is -8.

Look at the attached picture⤴

Hope it will help u...

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3 years ago

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Please take a look at the picture

Debora [2.8K]

$\tiny \text{yes \: looked}$

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3 years ago

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Feliz [49]

Answer:

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2 years ago