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Vesnalui [34]
2 years ago
6

Exact value of cos 60° x sin 30°

Mathematics
2 answers:
nalin [4]2 years ago
8 0

Answer:

0.25

Step-by-step explanation:

cos 60° = 0.5

sin 30° = 0.5

cos 60° x sin 30° = 0.5 x 0.5 = 0.25

denis23 [38]2 years ago
7 0

Answer:

the exact value is 1/4

Step-by-step explanation:

Mark as brainllest if helps!!!

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Answer:

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Step-by-step explanation:

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Here are two patterns made using identical rhombuses. Without using a protractor, determine the value of a and b.
satela [25.4K]

Answer:

<em>a = </em>60°

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Step-by-step explanation:

First, you can find measure <em>a </em>by using the first shape. There are six rhombuses, and you can use the innermost <em>a </em>of each one to form a circle. A full circle is 360°, so divide 360 by six. The answer is sixty. So on the next shape, the <em>a</em> measurements add up to 120°. Subtract that from the circle: 360 - 120 = 240. And since there are two measurements for <em>b</em>, you would divide 240 by two. The answer is 120.

To check your work, use the knowledge that circles are 360° (the four interior corners of a rhombus will also add up to 360°. 2(120) + 2(60) = 360. Hope this helps! Feel free to ask any questions!

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2 years ago
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kondor19780726 [428]

Answer:

What is the exact value of tan(−π4)? is 20

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2 years ago
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El mínimo común múltiplo de 20 14 y 17 es <u>1</u>.

17 es un número primo, y su únicos múltiplos son 17 y 1.

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26 meters

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