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IgorLugansk [536]
3 years ago
9

Find all values of $x$ such that $x^2-5x + 4=0$. If you find more than one value, then list your solutions in increasing order,

separated by commas.
Mathematics
1 answer:
Anna35 [415]3 years ago
7 0
Four and one is what I got
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Anni [7]

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it takes 24h

Step-by-step explanation:

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PLS HELPP ME <br><br> 0.27500 in simplest form
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2 years ago
An education researcher claims that 58​% of college students work​ year-round. In a random sample of 400 college​ students, 232
Hatshy [7]

Answer:

The proportion of college students who work​ year-round is 58%.

Step-by-step explanation:

The claim made by the education researcher is that 58​% of college students work​ year-round.

A random sample of 400 college​ students, 232 say they work​ year-round.

To test the researcher's claim use a one-proportion <em>z</em>-test.

The hypothesis can be defined as follows:

<em>H</em>₀: The proportion of college students who work​ year-round is 58%, i.e. <em>p</em> = 0.58.

<em>Hₐ</em>: The proportion of college students who work​ year-round is 58%, i.e. <em>p</em> ≠ 0.58. C

Compute the sample proportion as follows:

 \hat p=\frac{232}{400}=0.58

Compute the test statistic value as follows:

 z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}=\frac{0.58-0.58}{\sqrt{\frac{0.58(1-0.58)}{400}}}=0

The test statistic value is 0.

Decision rule:

If the p-value of the test is less than the significance level then the null hypothesis will be rejected.

Compute the p-value for the two-tailed test as follows:

 p-value=2\times P(z

*Use a z-table for the probability.

The p-value of the test is 1.

The p-value of the test is very large when compared to the significance level.

The null hypothesis will not be rejected.

Thus, it can be concluded that the proportion of college students who work​ year-round is 58%.

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3 years ago
AHHH HELPPP ME PLEASEE
Mamont248 [21]

Answer:

the third one is hard to see i think its 77 so the answer is 54.75

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
HELP QUICK HAVE 5 MINS
Illusion [34]

m = 4b+3  mikes age

m +b <138      mike +brother less than 138

4b+3+b<138

5b +3< 138

b< 135

b <27

The  oldest the brother can be is 26

4 0
3 years ago
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