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Sati [7]
4 years ago
15

What is the lower quartile of the given data set

Mathematics
1 answer:
rodikova [14]4 years ago
4 0

The median of the data would be (20+25)/2, which is 45/2 = 22.5.

The first quartile (Q1), the middle number between the smallest number and the median of the data set, is 9.

The second quartile (Q2) is the median of the data. (22.5)

The third quartile (Q3) the middle value between the median and the highest value of the data, is 35.

Hope this helped!

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Consider the 30°-60° right triangle shown whose hypotenuse is equal to one. Clearly this triangle is half of an equilateral tria
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Answer:

Step-by-step explanation:

Given triangle ABC is a right triangle.

m∠ACB = 60°

m∠CAB = 30°

m(AC) = 1 unit

A). Shorter side of the given triangle = Side BC

By applying cosine rule,

cos(∠C) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

cos(60°) = \frac{BC}{AC}

BC = \frac{1}{2}(AC)

BC = \frac{1}{2}

Length of the shorter side = 0.5 units

B). Longer side of the given triangle = side AB

By applying Pythagoras theorem in the given triangle,

AC² = AB² + BC²

1² = AB² + (\frac{1}{2})^2

1 = AB² + \frac{1}{4}

AB = \sqrt{1-\frac{1}{4}}

AB = \sqrt{\frac{3}{4}}

AB = \frac{\sqrt{3} }{2}

Length of the longer side = \frac{\sqrt{3}}{2}

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the equation 7x - 3y = 42 relates to x and y. find three pairs of points (x,y) that make the equation true.
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Answer:

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Step-by-step explanation:

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