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Feliz [49]
3 years ago
14

Tell whether the lines through the given points are parallel, perpendicular, or neither.

Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0

Step-by-step explanation:

The slope of a line connecting two points is:

m = (y₂ − y₁) / (x₂ − x₁)

The slope of line 1 is:

m = (4 − 0) / (7 − 1)

m = 2/3

The slope of line 2 is:

m = (6 − 0) / (3 − 7)

m = -3/2

Parallel lines have equal slopes.

Perpendicular lines have opposite inverse slopes.

2/3 and -3/2 are opposite inverses, so the lines are perpendicular.

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lora16 [44]

z-score of a company is 5.

What is z- test?

A z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard deviation of $4,000.

Now, using z- score

z= (x-\mu)/\sigma

z= 54000- 34000/ 4000

z= 20000/4000

z=5.

Hence, z-score of a company is 5.

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8 0
2 years ago
Which situation is best represented by the following equation?
tankabanditka [31]

Answer:

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3 years ago
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lisov135 [29]
You essentially have four triangles.  The area of a triangle is:  A=bh/2  (b=base length and h=height)

So the area is simply the sum of the four triangle areas...

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A=20 ft^2
7 0
3 years ago
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Steve has received $200 in the form of a dividend. What type of income is this.
blagie [28]

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2 years ago
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How many miles equals 26 km
Sliva [168]

Given data:

The given distance is d=26 km.

We know 1 kilometer is equal to approx 0.621 miles.

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26(1 km)= 26(0.621 miles)

26 km= 16.146 miles.

Thus, 26 kilometer is equal to 16.146 miles

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