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2 years ago

Calculate the mean of the following. 3,5,6,4,7,3,9,8

Mathematics

2 answers:

madam [21]2 years ago

5 0

Step-by-step explanation:

mean = sum of observation/ no. of observation

mean = 3+5+6+4+7+3+9+8/ 8

weqwewe [10]2 years ago

4 0

Answer:

3+5+6+4+7+3+9+8/8

45/8

5.625

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In a right triangle ABC, CD is an altitude, such that AD=BC. Find AC, if AB=3 cm, and CD= 2 cm.

konstantin123 [22]

Consider right triangle ΔABC with legs AC and BC and hypotenuse AB. Draw the altitude CD.

1. Theorem: The length of each leg of a right triangle is the geometric mean of the length of the hypotenuse and the length of the segment of the hypotenuse adjacent to that leg.

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Answer: $AC=\sqrt{\dfrac{-9+9\sqrt{5} }{2}}\ cm.$

This solution doesn't need CD=2 cm. Note that if AB=3cm and CD=2cm, then

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Calculate the mean of the following. 3,5,6,4,7,3,9,8​

Calculate the mean of the following. 3,5,6,4,7,3,9,8