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3 years ago

How do i simplify 3(2x-6) using the distributive property

Mathematics

2 answers:

Serjik [45]3 years ago

8 0

Answer:

6x - 18

Step-by-step explanation:

3(2x-6)

Distribute the 3 to each term in the parentheses

3* 2x - 3*6

6x - 18

Diano4ka-milaya [45]3 years ago

7 0

Answer: 3(2x - 6) = 6x - 18 simplified.

Step-by-step explanation: To simplify 3(3x - 6) using the distributive property, all you do is multiply the number outside the parentheses by both numbers inside the parentheses. 3 x 3x and 3 x (-6).

3(3x - 6) 3 x 3x = 9x and 3 x (-6) = -18

9x - 18

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Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The samplin

Sidana [21]

Answer:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

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Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

6 0

3 years ago

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What is the value of m: 5/8=m/96

rodikova [14]

m/96 = 5/8

Multiply each side by 96 .

Then you will have m = 480/8 .

This is the true value of 'm', but you may want to simplify it
to make it look prettier.

8 0

4 years ago

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so i just failed a test which somehow brought my grade from a b+ to a d how is that possible guys?!!!! im screwed and dead

mixer [17]

Answer:

Your previous grades must have been really high and messed up your average once you failed, bringing your grade down a lot.

Step-by-step explanation:

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3 years ago

What is the discriminant of 3x2 + 6x = 2?. a.12. b.18. c.42. d.60

Vikki [24]

Answer:
D. 60

Explanation:
The general form of the quadratic equation is:
ax² + bx + c = 0

The given equation is:
3x² + 6x = 2
This can be rewritten as:
3x² + 6x - 2 = 0

By comparison, we can find that:
a = 3
b = 6
c = -2

Now, the discriminant of a quadratic equation is given by:
b² - 4ac

Substitute with the given values to get the discriminant for the given equation as follows:
b² - 4ac = (6)² - 4(3)(-2)
= 36 - (-24)
= 36 + 24
= 60

Hope this helps :)

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4 years ago

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