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Andrews [41]
3 years ago
10

What is the slope-intercept equation of the line below? (2,3) (0,-5)

Mathematics
1 answer:
Arada [10]3 years ago
6 0

Answer:

y = 4x - 5

Step-by-step explanation:

plug the coordinates into the equation: y = mx + b

   3 = 2m + b

-) -5 = 0m + b

___________

   8 = 2m => m = 4

substitute 4 into either of the equation <em>3 = 2m + b</em> or <em>-5 = 0m + b</em> to solve for b

=> 3 = 2(4) + b

=> b = -5

plug m = 4 & b = -5 into the slope-intercept equation: y = mx + b

=> y = 4x - 5

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3 years ago
The perimeter of a rectangle changes from 2.5 to 10 after dilation what was the scale factor of the dilation
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Suppose that prices of a gallon of milk at various stores in one town have a mean of $3.91 with a standard deviation of $0.13. U
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Answer:

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The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by 100(1 - \frac{1}{k^{2}}).

In this question:

We have a mean of $3.91 and a standard deviation of $0.13.

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4.17 = 3.91 + 2*0.13

Within 2 standard deviations of the mean, so, by the Chebyshev's Theorem, the minimum percentage of stores that sell a gallon of milk for between $3.65 and $4.17 is of 75%.

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3 years ago
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4 years ago
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36x-8y^2
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4 years ago
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