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bazaltina [42]
3 years ago
12

My Question is find the x-intercept of following equation.simplify your answer 15x+-4y=20

Mathematics
2 answers:
mr_godi [17]3 years ago
4 0

So you distribute the 15x to the other side so it looks like this

-4y=20-15x then you divide -4 by -4 so you get 1y

then you divide -4 by 20 and -15

y=3/8x +5


Stels [109]3 years ago
3 0
I believe the answer is 20/15.
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Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm t\frac{s}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • t is the critical value.
  • n is the sample size.
  • s is the standard deviation for the sample.

From the sample and the significance level of 0.05, we have that the parameters are given by:

\overline{x} = 205.5, s = 14.2, n = 10, t = 2.2622

Hence:

\overline{x} - t\frac{s}{\sqrt{n}} = 205.5 - 2.2622\frac{14.2}{\sqrt{10}} = 195.3

\overline{x} + t\frac{s}{\sqrt{n}} = 205.5 + 2.2622\frac{14.2}{\sqrt{10}} = 215.7

The 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).

More can be learned about the t-distribution at brainly.com/question/16162795

8 0
2 years ago
Y = 2x + 4.6<br><br> m = ____ b = ____<br><br><br> fill in the blank !!!
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6 0
3 years ago
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Answer:

1. 9 cm

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Step-by-step explanation:

1. The long side is clearly the 6 cm side. multiply it by 1.5x (150%) and you get 9.

2. 2 is 50% of 4 and 3 is 50% of 6.

3. Assuming the photo is a rectangle, the answer would be 90 degrees on every angle (in a dilation, angle measurements are congruent).

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2 years ago
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il63 [147K]

Answer:

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140-50-20=70

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6 0
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