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Aleksandr-060686 [28]
2 years ago
8

Find the value of x. If necessary, round your answer to the nearest tenth. The figures are not drawn to scale.

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
6 0
10•24=240
240=9•x
240=9x
240/9=x
x=26 2/3
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For each of these problems, remember SOH-CAH-TOA.

Sine = opposite/hypotenuse

Cosine = adjacent/hypotenuse

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5) Here we are looking for the cosine of the 30 degree angle. Cosine uses the adjacent side to the angle over the hypotenuse. Therefore, cos(30) = 43/50.

6) We have an unknown side length, of which is adjacent to 22 degrees, and the length of the hypotenuse. Since we know the adjacent side and the hypotenuse, we should use Cosine. Therefore, our equation to find the missing side length is cos(22) = x / 15.

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8) We are again using an inverse trigonometry function here. We know the hypotenuse, as well as the side adjacent to the angle. Therefore, we should use the inverse cosine function. Using the inverse cosine function gives us cos^-1 (9/13) = 46 degrees.

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How to find minimum and maximum of this equation.
Westkost [7]

Using it's vertex, the maximum value of the quadratic function is -3.19.

<h3>What is the vertex of a quadratic equation?</h3>

A quadratic equation is modeled by:

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The vertex is given by:

(x_v, y_v)

In which:

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In this problem, the equation is:

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In standard format:

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More can be learned about the vertex of a quadratic function at brainly.com/question/24737967

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<span>The Empirical Rule is used when data distribution is bell shaped, whereas Chebyshev's theorem is used for all distribution shapes</span>
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