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3 years ago

A set of data points has a line of best fit of y = –0.2x + 1.9. What is the residual for the point (5, 1)?

1 answer:

3 0

<span>A. 0.1
The residual is the difference between the observed value and the predicted value for a data point. You obtain it by subtracting the predicted value from the observed value. So the predicted value is: y = -0.2x + 1.9 y = -0.2*5 + 1.9 y = -1 + 1.9 y = 0.9 Therefore the residual is: r = 1 - 0.9 r = 0.1 And the value of 0.1 matches option "A".</span>

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XY bisects DF at point E. If DE=2y and EF=8y-3, find the value of DF

nirvana33 [79]

Answer:

Step-by-step explanation:

If XY bisects DF at point E, then DE = EF.

Given DE = 2y and EF = 8y-3

2y = 8y-3

subtract 8y from both sides

2y-8y = 8y-8y-3

-6y = -3

y = 3/6

y = 1/2

y = 0.5

DF = DE+EF

DF= 2y+8y-3

DF = 10y - 3

DF = 10(0.5)-3

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3 years ago

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o-na [289]

Answer:

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Step-by-step explanation:

the first quartile is between 34 and 36 = 35

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3 years ago

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ra1l [238]

The answer to this question is

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2 years ago

Christopher withdrew 30 United States dollars (USD) from an automatic teller machine in Germany. He received 24 euros (EUR). Whi

Gelneren [198K]

<em> 1 euro equals 1.25 dollars</em>

<h2>Explanation:</h2><h2></h2>

In this problem we know that:

Christopher withdrew 30 United States dollars (USD) from an automatic teller machine in Germany.
He received 24 euros (EUR).

So we can solve this by using unitary method:

$1EUR=\frac{30EUR}{24USD} \\ \\ \boxed{1EUR=1.25USD}$

So<em> 1 euro equals 1.25 dollars</em>

<em />

<h2>Learn more:</h2>

Converting units: brainly.com/question/8426032

#LearnWithBrainly

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3 years ago

Solve the system by the elimination method.<br><br> 2a + 3b = 6<br> 5a + 2b - 4 = 0

mariarad [96]

2a + 3b = 6 --> Equation 1
5a + 2b = 4 --> Equation 2
Equation 1 * 5 --> 10a + 15b = 30
Equation 2 * 2 --> 10a + 4b = 8
Equation 1 - Equation 2 --> 11b = 22 --> b = 2
Sub b=2 in Equation 1 (or 2, either works):
2a + 3b = 6
2a + 3(2) = 6
2a + 6 = 6
2a = 0
a = 0

b = 2, a = 0

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3 years ago

Read 2 more answers