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nasty-shy [4]
3 years ago
7

What's A in 5a+5=5(a+1)PLEASE EXPLAIN​

Mathematics
2 answers:
Luden [163]3 years ago
8 0

Answer:

yes thats right

Step-by-step explanation:

stepan [7]3 years ago
3 0

Answer:

All real numbers are solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5a+5=5(a+1)

5a+5=(5)(a)+(5)(1)(Distribute)

5a+5=5a+5

Step 2: Subtract 5a from both sides.

5a+5−5a=5a+5−5a

5=5

Step 3: Subtract 5 from both sides.

5−5=5−5

0=0

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Step-by-step explanation:

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If a building was placed at coordinates (-5,5), what would be the new coordinates if rotated 270° counterclockwise around the or
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The rule for a 270° counterclockwise rotation is (x, y) ---> (y, -x).

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Say that you are about to make a major purchase and would like to save money on sales tax. Which of these is a viable way to red
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<h2><em>Spymore</em></h2>
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The distribution of the average amount of sleep per night gotten by college students is roughly bell-shaped with mean 412 minute
kirza4 [7]

Answer:

P(X

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 scores of a population, and for this case we know the distribution for X is given by:

X \sim N(412,68)  

Where \mu=412 and \sigma=68

We are interested on this probability

P(X

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

And we can find this probability using the normal standard table or excel and we got:

P(z

4 0
3 years ago
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