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3 years ago

What is the slope that passes through the lines (2.1,-4.2) and (2.5,-5)

Mathematics

1 answer:

Usimov [2.4K]3 years ago

7 0

slope = (y2-y1)/(x2-x1)

= (-5--4.2) /(2.5 -2.1)

(-5+4.2)/(2.5-2.1)

=-.8/.4

m=-2

the slope is -2

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2 years ago

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3 years ago

Read 2 more answers

Question 1

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Answer:

$M.A.D= 4.9$

Step-by-step explanation:

Given

12.7, 22, 23.5, 24, 11, 22

Required

Determine the M.A.D

Start by calculating the Mean

$Mean = \frac{\sum x}{n}$

In this case, n = 6

So:

$Mean = \frac{12.7 + 22 + 23.5 + 24 + 11 + 22}{6}$

$Mean = \frac{115.2}{6}$

$Mean = 19.2$

Subtract the mean from each element

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$23.5 - 19.2 = 4.3$

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$11 - 19.2 = -8.2$

$22 - 19.2 = 2.8$

Take absolute value of the results above

$|-6.5| = 6.5$

$|2.8| = 2.8$

$|4.3| = 4.3$

$|4.8| = 4.8$

$|-8.2| = 8.2$

$|2.8| = 2.8$

The mean of the above gives the MAD

$M.A.D= \frac{\sum |x - u|}{n}$

$M.A.D= \frac{6.5 + 2.8 + 4.3 + 4.8 + 8.2 + 2.8}{6}$

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3 years ago

Four lines are shown in the graph below.

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Answer:

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2 years ago

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Kruka [31]

Answer: $1179.75

Step-by-step explanation:

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= 5.5/100 × $21,450

= 0.055 × $21,450

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2 years ago