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3 years ago

which equation represents the function in the table?

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

Substitute the value of x in each function and check if it's equal to it's corresponding value of y.

Correct me if I'm wrong. I hope it helps.

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PLS HELP FOR BRAINLIST...

Ahat [919]

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3 years ago

The weights of 67 randomly selected axles were found to have a variance of 3.85. Construct the 80% confidence interval for the p

VLD [36.1K]

Answer:

$3.13$

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 67

Variance = 3.85

We have to find 80% confidence interval for the population variance of the weights.

Degree of freedom = 67 - 1 = 66

Level of significance = 0.2

Chi square critical value for lower tail =

$\chi^2_{1-\frac{\alpha}{2}}= 51.770$

Chi square critical value for upper tail =

$\chi^2_{\frac{\alpha}{2}}= 81.085$

80% confidence interval:

$\dfrac{(n-1)S^2}{\chi^2_{\frac{\alpha}{2}}} < \sigma^2 < \dfrac{(n-1)S^2}{\chi^2_{1-\frac{\alpha}{2}}}$

Putting values, we get,

$=\dfrac{(67-1)3.85}{81.085} < \sigma^2 < \dfrac{(67-1)3.85}{51.770}\\\\=3.13$

Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.

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3 years ago

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fredd [130]

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2 years ago

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3 years ago

Slope-Intercept <br> Find “y” alone<br><br> 2( y - 3 ) = 10x + 4

Anettt [7]

Answer: y = 5x + 5

Step-by-step explanation: Okay follow these steps to get y alone.

2 ( y - 3 ) = 10x + 4

2y - 6 = 10x + 4

2y = 10x + 10

y = 10/2x + 10/2

y = 5x + 5

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2 years ago

￼ which equation represents the function in the table?

which equation represents the function in the table?