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leva [86]
3 years ago
14

Jonathan math test scores where 87 93 85 62 and 95 what was his mean score answer

Mathematics
2 answers:
Ivenika [448]3 years ago
4 0
87 + 93 + 85 + 62 + 95 = 422
422 / 5 = 84.4
mean = 84.4
Lilit [14]3 years ago
4 0

Answer:

Add all the numbers and your answer would be 422. You then divide by the amount of numbers you have so 422/5=84.4 so your mean would be 84.4!! Hope this helps!!!!!!!!!!!

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aalyn [17]

Answer:

EF=4\sqrt{3}

Step-by-step explanation:

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ΔDEF is one-fourth the area of rectangle ABCD.

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First, we can find the area of the rectangle. Since the length AB and width BC measures 6 by 8, the area of the rectangle is:

A_{\text{rect}}=8(6)=48\text{ cm}^2

The area of the triangle is 1/4 of this. Therefore:

\displaystyle A_{\text{tri}}=\frac{1}{4}(48)=12\text{ cm}^2

The area of a triangle is half of its base times its height. The base and height of the triangle is DE and DF. Therefore:

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Since DE = DF:

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Since ABCD is a rectangle, ∠D is a right angle. Then by the Pythagorean Theorem:

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