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3 years ago

Use the diagram to help you answer what is the value of x

Mathematics

1 answer:

AVprozaik [17]3 years ago

8 0

Answer:

D I think

Explanation:

Sorry if it is wrong

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Rashid [163]

Answer:

this isnt spanish

Step-by-step explanation:

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3 years ago

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Look at the image. (calculus)

mash [69]

<h3>Answer: Choice H) 2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is $\sin^2 x + \cos^2x = 1$

If we were to isolate sine, then,

$\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\$

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, $\cos x = \sqrt{1-\sin^2x}\\\\$

Cosine is also positive in this quadrant.

-------------

So,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2$

Therefore,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2$

is an identity as long as 0 < x < pi/2

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2 years ago

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How can you classify a trapezoid in other terms?

Harrizon [31]

<span>The sections that it is in are Classifying Quadrilaterals Properties of Parallelograms Special Parallelograms Trapezoids and Kites Placing Figures in the Coordinate Plane</span>

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3 years ago

I need help again please

babymother [125]

There are 8 pints in a gallon. It will take 10 days to drink 1 5-gallon container.
30 / 10 = 3
He will drink 3 containers. Hope this helped :)

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3 years ago

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Solve the equation: 3 (x + 4) = 2x -- 8

kotegsom [21]

Answer:

x = -20

Step-by-step explanation:

Let me know if you need the work.

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3 years ago