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3 years ago

Aply the distributive property to factor out the greatest common factor. 70-40p

Mathematics

2 answers:

Novosadov [1.4K]3 years ago

7 0

Answer:

10(7-4p)

Step-by-step explanation:First, you divide the 2 numbers 70 and 40p by 10 which you will get 7 and 4p. Then, put 7-4p in paranthisies. After that put a 10 before the paranthisies.

idk if i spelt ( ) right.

liubo4ka [24]3 years ago

6 0

Answer:

actually the khan academy version is 10(7−4p) because i tried just 10 and it didn't work so this is the khan academy answer

Step-by-step explanation:

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The weight of a product is normally distributed with a mean of four ounces and a variance of .25 squared ounces. What is the pro

ololo11 [35]

Answer:

$P(X>3.75)=P(\frac{X-\mu}{\sigma}>\frac{3.75-\mu}{\sigma})=P(Z>\frac{3.75-4}{0.5})=P(z>-0.5)$

And we can find this probability using the complement rule and we got:

$P(z>-0.5)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

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

$X \sim N(4,\sqrt{0.25}=0.5)$

Where $\mu=4$ and $\sigma=0.5$

We are interested on this probability

$P(X>3.75)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>3.75)=P(\frac{X-\mu}{\sigma}>\frac{3.75-\mu}{\sigma})=P(Z>\frac{3.75-4}{0.5})=P(z>-0.5)$

And we can find this probability using the complement rule and we got:

$P(z>-0.5)=1-P(z$

5 0

3 years ago

In the figure to the right, if AC = 15 and BC = 12, what is the radius?

Andrew [12]

Answer:

The radius is 9.0 units

Step-by-step explanation:

we know that

In the right triangle of the figure ABC

Applying the Pythagorean Theorem

$AC^2=AB^2+BC^2$

substitute the given values

$15^2=AB^2+12^2$

solve for AB

$AB^2=15^2-12^2\\AB^2=81\\AB=9\ units$

Remember the the side AB of right triangle represent the radius of the circle

therefore

The radius is 9.0 units

6 0

3 years ago

I NEEEED HELP!!! please show work in answer and no blank or nonsense answers please :)

rodikova [14]

Answer:

225 pi = pi r^2 h

225 = r^2*h

225/1 = r^2

sqrt. (225) = r

r = 15

8 0

3 years ago

MATH PLEASE HELP 20 POINTS!

Igoryamba

1. d
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y-intercept (x=0) is 8

2. d
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3. b
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Ludmilka [50]

-6m+19
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</span>

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3 years ago

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