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3 years ago

3x + (-2 + 4x) X = 5

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

7 0

3(5)+(-2+4(5))
15+(-2+20)
15+(18)
15+18
=33

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4 years ago

Whats the slope of (4,-1) and (-1,4)

Harman [31]

Answer:

<h2>The slope m = -1</h2>

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

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3 years ago

Determine the intercepts of the line

aleksklad [387]

Answer:

y-intercept: (0,5); x-intercept: (5/2, 0)

Step-by-step explanation:

The equation of the line is given: -4x + 7 = 2y - 3.

To find the x-intercept, set y = 0 and solve for x:

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To find the y-inercept, set x = 0 and solve for y:

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3 years ago

The following data give the annual salaries (in thousand dollars) of 20 randomly selected health care workers. 50 72 56 38 46 65

Afina-wow [57]

Answer:

So, the interquartile range is IQR=22.5.

Step-by-step explanation:

Let us write the numbers in ascending order:

34, 37, 38, 40, 44, | 46, 50, 51, 55, 56, |

57, 61, 62, 65, 65, | 68, 68, 72, 73, 76.

We calculate quartile 1:

$Q_1=\frac{44+46}{2}=45$

We calculate quartile 2:

$Q_2=\frac{56+57}{2}=56.5\\$

We calculate quartile 3:

$Q_3=\frac{65+68}{2}=67.5\\$

We calculate the interquartile range:

$IQR=Q_3-Q_1\\\\IQR=67.5-45\\\\IQR=22.5$

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3 years ago

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vichka [17]

Answer:

Step-by-step explanation:

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3 years ago