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Harlamova29_29 [7]
3 years ago
9

What is the value represented by the digit 8 after 7,824 is divided by 10? help PLEASE 15 Point

Mathematics
1 answer:
8_murik_8 [283]3 years ago
7 0

Answer: 80

Step-by-step explanation:

7824/10 = 782.4

The value represented by 8 is 80 or 8 tens.

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Solve the system of equations by graphing on your own paper. What is the y
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Step-by-step explanation:

the solution is (0.25,-0.5) because when you graph them on a graph, they both intercept at that point.

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What is the equation of the line that passes through the point (-6,7) and has a slope of -5? Write the equation in slope interce
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y = -5x - 23

Step-by-step explanation:

Point-slope form:

y - 7 = -5(x + 6)

rearrange:

y - 7 = -5x - 30

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4 0
3 years ago
This morning, Rita's car had 18.12 gallons of fuel. Now, 4.7 gallons are left. How much fuel did Rita use?
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3 years ago
Shear strength measurements for spot welds have been found to have standard deviation 1 0 pounds per square inch (psi). If 100 t
Temka [501]

Answer:

P(\mu -1< \bar X

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".  

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

X \sim N(\mu,10)  

Where \mu and \sigma=10

And let \bar X represent the sample mean, the distribution for the sample mean is given by:

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

On this case  \bar X \sim N(\mu,\frac{10}{\sqrt{100}})

We are interested on this probability

P(\mu -1

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

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

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

P(\mu -1

=P(\frac{\mu -1-\mu}{\frac{10}{\sqrt{100}}}

And we can find this probability on this way:

P(-1

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-1

5 0
3 years ago
Find the value of sin 0 in each of the following figures.​
alexdok [17]

Answer:

sinθ = \frac{8}{10}

Step-by-step explanation:

sinθ = \frac{opposite}{hypotenuse} = \frac{BC}{AC} = \frac{8}{10}

5 0
3 years ago
Read 2 more answers
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