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Yanka [14]
3 years ago
6

Algebra help please!

Mathematics
1 answer:
ad-work [718]3 years ago
5 0

Answer:

Yes

Step-by-step explanation:

10(49-49)

---------------

2(7)(7^2-16)(7+3)

  0

---------

4620

answer is 0

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Please slove step by step for both
Serggg [28]

Answer:

Step-by-step explanation:

8. 21+7 = 28

9. 73-17 =56

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3 years ago
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Suppose speeds of vehicles traveling on a highway have an unknown distribution with mean 63 and standard deviation 4 miles per h
Mashutka [201]

Answer:

The standard deviation for the sample mean distribution=0.603

Step-by-step explanation:

We are given that

Mean,\mu=63

Standard deviation,\sigma=4

n=44

We have to find the standard deviation for the sample mean distribution using  Central Limit Theorem for Means.

Standard deviation for the sample mean distribution

\sigma_x=\frac{\sigma}{\sqrt{n}}

Using the formula

\sigma_x=\frac{4}{\sqrt{44}}

\sigma_x=\frac{4}{\sqrt{2\times 2\times 11}}

\sigma_x=\frac{4}{2\sqrt{11}}

\sigma_x=\frac{2}{\sqrt{11}}

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Hence, the standard deviation for the sample mean distribution=0.603

6 0
2 years ago
Below is the justification for the formula for area of a circle. Which word, when placed in the blank best completes this argume
mote1985 [20]

Answer:

The correct answer is option A.  r

Step-by-step explanation:

From the figure we can see a circle and a parallelogram.

The circle is divided into a small sectors and these sector then arranged into a parallelogram.

The base of the parallelogram is half the circumference.

The height of parallelogram is equal to the radius of the given circle. Here radius is 'r'.

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8 0
3 years ago
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The distance between 5,3 and 1,3
mel-nik [20]

Answer:

(4,0)

Step-by-step explanation:

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You need to subtract from the x axis on both coordinates and the y axis in both coordinates.

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I also checked on a graph as well, so it's correct.

4 0
3 years ago
PLEASE ANSWER QUICK
makvit [3.9K]
For the first equation, I put it in y=mx+b form, so y=-3x-9
the second one is x=4
hope i helped 
3 0
3 years ago
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