3 years ago

What is the slope of the line

Mathematics

2 answers:

anastassius [24]3 years ago

8 0

Slope = 1/2

Hope this helps! Have a great day :)

Marrrta [24]3 years ago

5 0

Yeah, it’s 1/2, you go up 1 and right 2 because the line touches the center of the intersecting lines

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How do you solve this?

ohaa [14]

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Y = 6

Since they are giving you the value of 6 you just plug it in the equation

-7x - 7(6) = 21
-7x - 42 = 21
+ 42. +42

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Dimas [21]

Answer: it is C

Step-by-step explanation:

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3 years ago

5/13 t = -9 Thanks! Study work!

Triss [41]

Hi there..

5/13 t = -9
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Have a good night !

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snow_lady [41]

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3 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

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Level of confidence = 0.99

Significance level : $\alpha=1-0.99=0.01$

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

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3 years ago