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NNADVOKAT [17]
2 years ago
6

How do I find the surface area of a cone

Mathematics
1 answer:
katen-ka-za [31]2 years ago
8 0
Find circumference and height of cone and multiply
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Find x. Round to the nearest degree.
jeka94

The Law of Cosines features the 3 side lengths of a triangle, plus the measure of the angle opposite one of those sides.


We want angle x, which is opposite the side of length 39.


Then: a^2 = b^2 - 2ab cos C becomes 39^2 = 36^2 + 59^2 - 2(36)(59)cos x


or 1521 = 3481 + 1296 - 2(36)(59) cos x


Subtract (3481+1296) from both sides: 1521 - 4777 = -4248cos x

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Then: cosx = --------------- = 0.766

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Solving for x: x = arccos -0.766 = 0.698 radian, or 40 degrees (answer)

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What is 720° converted to radians?
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Answer: The correct answer is D

Step-by-step explanation:

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-8y it should be right
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who was often called the father of modern mathematics because he created analytic geometry and the cartesian coordinate system?
valentina_108 [34]

René Descartes was the person who created analytic geometry and the Cartesian coordinate system

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2 years ago
A rectangle is 2/5 inches long and 1/3 inches wide. What is the area of the rectangle?
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2/5 x 1/3 = 2/15 inches squared

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