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guapka [62]
2 years ago
5

If there are 44 successful outcomes in a sample with a size of 80, what is the

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
7 0

Answer:

The sample proportion is 0.55

Step-by-step explanation:

Given that:

Successful outcomes = 44

Size of sample = 80

We will divide the number of successful outcomes by size of sample to find the sample proportion.

Sample proportion = \frac{Successful\ outcomes}{Size\ of\ sample}

Sample proportion = \frac{44}{80}\\

Sample proportion = 0.55

Hence,

The sample proportion is 0.55

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Answer:

22.5 1/2

Step-by-step explanation:

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3 years ago
Determine whether a figure with the given vertices is a parallelogram. Use the method indicated.
aliya0001 [1]

Answer with explanation:

The coordinates of four points of Quadrilateral ABCD are

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Slope between two points is given by

 m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\m_{1}=\frac{-10-5}{-7-4}\\\\=\frac{-15}{-11}\\\\m_{1}=\frac{15}{11}\\\\m_{2}=\frac{-9+10}{-4+7}\\\\m_{2}=\frac{1}{3}\\\\m_{3}=\frac{6+9}{7+4}\\\\m_{3}=\frac{15}{11}\\\\m_{4}=\frac{6-5}{7-4}\\\\m_{4}=\frac{1}{3}

As slope of opposite sides are equal and length of Opposite sides are equal.So,the given Quadrilateral is a Parallelogram.

Option A

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3 years ago
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x = -13/3, 8/3


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tan theta = perpendicular / base

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so option D is answer

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