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3 years ago

Find the slope of each line.

Mathematics

2 answers:

NISA [10]3 years ago

5 0

The slope equation is y=mx+b.

b is where the line crosses on the y axis, also known as the y-intercept.

m is the slope, which you are trying to find.

y and x are the points on the graph.

The slope is 3/3, which can be turned into 1, so the answer is c.

DedPeter [7]3 years ago

4 0

Answer:

C) 1

Step-by-step explanation:

Slope = change in y over change in x

In the graph shown as y goes up 1 x goes up 1

so slope = 1/1 or 1

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Step-by-step explanation:

a. we simply subtract 3. from 2.

x + 2y + z = 15

- -3x + y + z = 2

--------------------------

4x + y 0 = 13

b. we multiply 3. by 3 and then subtract from 1.

2x - 4y + 3z = -7

- -9x + 3y + 3z = 6

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11x - 7y 0 = -13

c. we multiply the result of a. by 7, and then simply add a. and b., because the y terms have different signs already.

28x + 7y = 91

+ 11x - 7y = -13

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39x 0 = 78

39x = 78

x = 2

d. we use this x = 2 in the result of a.

4×2 + y = 13

8 + y = 13

y = 5

e. using x = 2 and y = 5 in 2.

2 + 2×5 + z = 15

2 + 10 + z = 15

12 + z = 15

z = 3

the solution is therefore (2, 5, 3).

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A Ski resort tracks the proportion of seasonal employees who are rehired each season. Rehiring a seasonal employee is beneficial

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Given sample sizes of 833 and 386 and result of samples 434 and 189.

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Proportion of full time=434/833=0.52

Proportion of part time=189/386=0.49.

Difference in proportion =0.52-0.49

$H_{0}:$ TTF- i∈ rho=0

$H_{1}:$ TTF+i∈ rho≠0.

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Z=(X-μ)/σ

σ= $\sqrt{0.4517/447}$

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σ=0.0317

z=(0-0.03)/0.0317

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