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3 years ago

I need new friends :(. P.S. STOP MISTAKING ME FOR A BOY!

Mathematics

1 answer:

Jlenok [28]3 years ago

4 0

Answer:

sup my guy

Step-by-step explanation:

i can be your friend

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Please help <br> is not a exam is a activity

Mars2501 [29]

Answer:

y= 5x

Step-by-step explanation:

since each x number is 1/5 of the y, it's 5 times x = y

8 0

2 years ago

Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

The 95% confidence interval is $1003 < \mu$

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

4 0

3 years ago

Find the value of 'x' in the given figure

Archy [21]

$\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}$

(2x-20)°+(x+65)°=180°

2x-20+x+65=180

3x+45=180

3x=180-45

3x=135

x=135/3

x=45°

8 0

2 years ago

20 POINTS

Bond [772]

The answer to this question is C. 11. (I am making a joke by mentioning the music disc C418 Music Disc Variation 11 from Minecraft. I hope you play or else you might not get the joke I implied.) Hoped this helped. (Also I am going for 10 Brainliest answers. I would greatly appreciate it if you chose mine as the Brainliest answer. Thank you 100 times in advance. :))

5 0

2 years ago

Read 2 more answers

Solve for m.<br> 8m+95<−87m+5

tiny-mole [99]

Answer:

m < - $\frac{18}{19}$