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Kisachek [45]
2 years ago
8

Please help me out it would make my day!​

Mathematics
1 answer:
nlexa [21]2 years ago
6 0

Answer:

Last option: Square both sides of the equation in step 1 to eliminate the square root.

Step-by-step explanation:

The error is in the process of subtracting 3 from both sides, since +3 is inside the root.

In order to be able to operate with the terms that are inside the root, we need to eliminate the root, and for that we need to square both sides of the equal sign.

You might be interested in
2 in., 3 in., 6 in.<br> can a triangle have sides with the given lengths
Rainbow [258]

Answer:

No because the 6+4 does not equal 36.

Step-by-step explanation:

first make the hypotenuse 6 the other two are sides A and B

Use the pythagorean theorem: 3^2+2^2+6^2

6+4=36

3 0
3 years ago
Long division<br>algebra 2, help me. thanks
klemol [59]
To complete this algebra problem, just like any other, we have to complete the proper steps in order; here as follows.

1. <span><span>−<span>3<span>x^2 </span></span></span>+ <span>20x </span></span>− <span>12
         -------------
             x - 6


2. </span><span><span>(<span><span>−<span>3x </span></span>+ 2</span>) </span><span>(<span>x − 6</span><span>)
</span></span></span>         -----------
            x - 6


And finally..


You come up with the answer of:

-3x + 2

I hope this cleared up the little confusion you may have been having. If you need more information on the steps, just ask.


4 0
3 years ago
Find the units of displacement of the point (4,2) to get the image of (7,7). Chapter (transformation) (coordinates) (translation
ehidna [41]

Answer:

translation (3 right, 5 up)

Step-by-step explanation:

4 0
3 years ago
A normal distribution has a mean of 50 and standard deviation of 5. Which value produces a negative z-score?​
zimovet [89]

Answer:

x\:.

Step-by-step explanation:

The z-score for a normal distribution is calculated using the formula:

Z=\frac{x-\mu}{\sigma}.

From the question, the distribution has a mean of 50.

\implies \mu=50 and the standard deviation is \sigma=5.

For a z-score to be negative, then, \frac{x-\mu}{\sigma}\:.

\frac{x-50}{5}\:.

x-50\:.

x-50\:.

x\:.

\therefore x\:.

Any value less than 50 will produce a negative z-score

8 0
3 years ago
Please help! This is past due and I don’t know the answer!
sesenic [268]

One way is a simple random sample (SRS) which basically involves putting everyone's name into a hat and drawing out a list of names at random. Or the computer is the one doing the random selections.

Another way is to use cluster sampling. Each cluster would be the various stores. So if you had say 20 stores nationwide, then the company picks a few people at random from each cluster (store) and forms the sample that way. This method ensures that no store is left out, and could possibly be more representative compared to pure SRS which will pick any name at random. With SRS it is possible that some stores are over-represented while others are under-represented or simply represented not at all.

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

Side note:

An example of "over-representation" would be having a group of 90% males in a committee when the population at large is roughly 50% male, 50% female.

Under-representation is the complete opposite, so that example would be the 10% of females on the committee (when it should be closer to 50%)

5 0
3 years ago
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