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3 years ago

FindSin 2 (30degrees)

Mathematics

1 answer:

Vinvika [58]3 years ago

5 0

Answer:

Sin 2 (30)°= $\frac{\sqrt{3} }{2}$

Step-by-step explanation:

Explanation:-

Given that Sin 2 (30)°

we know that the formula sin2θ = 2sinθ cosθ

Given that θ = 30°

Now

sin2(30)° = 2sin30° cos30°

$= 2 ( \frac{1}{2} X \frac{\sqrt{3} }{2} )$

After cancellation, we get

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

Final answer:-

Sin 2 (30)° = $\frac{\sqrt{3} }{2}$

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Answer:

The probability that the next voter does not agree to the new amendment is 0.2584 or 316/1223

Step-by-step explanation:

First we have to calculate the number of voters who did not accept the amendment

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1223 - 907 = 316

To calculate the probability that someone will not vote in favor of the amendment we simply have to divide the number of negative votes by the number of total votes

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The probability that the next voter does not agree to the new amendment is 0.2584

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3 years ago

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3 years ago

Isabella uses the equation V = one-third (12) squared (9) pi to find the volume of the cone below.

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Isabella’s error is Isabella should have divided the product of 12π and 9 by 3 to get V = 12π(9)/3 option fourth is correct.

It is defined as a three-dimensional shape in which the base is a circular shape and the diameter of the circle decreases as we move from the circular base to the vertex.

$\rm V=\pi r^2\dfrac{h}{3}$

Isabella equation:

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The area of the base = 12π square cm

$\rm V = \dfrac{12\pi (9 )}{3}$

Thus, Isabella’s error is Isabella should have divided the product of 12π and 9 by 3 to get V = 12π(9)/3 option fourth is correct.

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Answer:

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3 years ago

FindSin 2 (30degrees)​

FindSin 2 (30degrees)