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sergiy2304 [10]
3 years ago
9

What's the answer to this question

Mathematics
1 answer:
Licemer1 [7]3 years ago
4 0
To create a similar line, you have to make a line of any length, open up the compass to the length of the original line, then draw an arc with that length on the created line. Choice 2 follows these set of steps.

:)
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Maria is planning to attend UCLA. She is curious what the average age of UCLA students is. Since most students that attend UCLA
RoseWind [281]

Answer:

Yes

We fail to reject the alternative hypothesis Hₐ < 30, that is the average age of students is less than 30

Step-by-step explanation:

Yes because, there is an average age of a sample which can be tested against a null hypotheses

We put

Null hypothesis as H₀ = 30

The alternative hypothesis as Hₐ < 30

We have

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

With

\bar x = 29

μ = 30

σ = 5.2

n = 65

α = 10%

We have

Here we have z = -1.55 and critical z = -1.28

Which gives a critical \bar x of 29.83 with the probability P = 0.061 < 0.1 Hence we reject the null hypothesis as there is sufficient evidence to suggest that the average age is less than 30 years.

8 0
2 years ago
What’s the definition of input and output?
Vika [28.1K]

Input is the same as the x-term and output is the same as the y-term.

For example, take a look at the image provided with thee table.

Looking at the first box of our table, notice that if we subtract 5 from 1, we get -4 and if we subtract 5 from 2 we get -3 and if we subtract 5 from 3, we get -2.  Notice that in each case, we're subtracting 5 from the input to get the output.

I attached a table so you can practice if you'd like to. All you have to do is subtract 5 from each input and you will end up with the output. The first few are done for you. I also provided an answer key in the next image so you can check your work.

The last one might be a little trick. In the input, we have n which is a variable that represents any number. If we want to find the nth term, we simply subtract 5. So we have n - 5.

First image is practice if you'd like and the second is the key.

If you don't want to do it, no worries.

4 0
3 years ago
Read 2 more answers
Find the difference of (2x+5)(2x-5)
san4es73 [151]

Answer:

4x2−25

Step-by-step explanation:

(2x+5)(2x−5)

=(2x+5)(2x+−5)

=(2x)(2x)+(2x)(−5)+(5)(2x)+(5)(−5)

=4x2−10x+10x−25

4x2−25

3 0
3 years ago
use the frequency table to find the probability of at most 4 responses received to this week's newspaper editorials.
ZanzabumX [31]

Answer:

B


Step-by-step explanation:

To get probability of AT MOST 4 responses means all the probabilities Equal to or Less Than 4.


<u>From the table, that is probability of 0, 1, 2, 3 or 4</u>. <em>(OR in probability means adding)</em>

<em>Hence, we add the number of editorials for P=0,1,2,3, and 4 and then divide by total number of editorials.</em>

P(\leq4)= \frac{20+30+56+38+34}{200}\\P(\leq4)=\frac{178}{200}\\P(\leq4)=0.89

Answer choice B is right.

5 0
3 years ago
I need help finding the midpoint and distance!!! Will mark brainliest
Valentin [98]
Lol I’m taking the same stuff right now. Sorry to be but no cheating on homework. The formulas are long but you’ll get there
3 0
2 years ago
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