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2 years ago

What is D equals R 2 for math

Mathematics

2 answers:

umka21 [38]2 years ago

6 0

D=r^2 means diameter equals radius squared

egoroff_w [7]2 years ago

3 0

The equation d=2r is used in geometry to find the diameter of a circle when its radius is know. d represents, and r represents the radius. This formula is explained by the fact that the diameter of a circle is equal to 2 times the length of its radius.
For example, if we have a circle with a radius of 4, and we need to find its diameter we can use the formula d = 2r:
d = 2r = 2*4 = 8

Hope this Helps! :)

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What is the solution for the equation?

Vesnalui [34]

Answer:

The soultion is the answer.

Step-by-step explanation:

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denis-greek [22]

Answer:

______________________________________________________

TRIGONOMETRY IDENTITIES TO BE USED IN THE QUESTION :-

For any right angled triangle with one angle α ,

$\cos (90 - \alpha ) = \sin \alpha$ or $\sin(90 - \alpha ) = \cos\alpha$

$cosec \: (90 - \alpha ) = \sec\alpha$ or $\sec(90 - \alpha ) = cosec\:\alpha$

SOME GENERAL TRIGNOMETRIC FORMULAS :-

$\sin \alpha = \frac{1}{cosec \: \alpha }$ or $cosec \: \alpha = \frac{1}{\sin \alpha }$

$\cos \alpha = \frac{1}{\sec \alpha }$ or $\sec \alpha = \frac{1}{\cos \alpha }$

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Now , lets come to the question.

In a right angled triangle , let one angle be α (in place of theta) .

So , lets solve L.H.S.

$\cos (90 - \alpha ) \times cosec(90 - \alpha )$

$=> sin\alpha \times \sec\alpha$

$=> \sin\alpha \times \frac{1}{\cos\alpha }$

$=> \frac{\sin\alpha }{\cos\alpha }$

$=> \tan\alpha$ = R.H.S.

∴ L.H.S. = R.H.S. (Proved)

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2 years ago

Can someone do eight nine one and two ?

Sergeeva-Olga [200]

Answer: hello there here are your answers:

8) B multiplication property of zero

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Step-by-step explanation:

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2 years ago

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dezoksy [38]

Hey there,

Answer: Tomatoes

If you multiply 10 x 0.69 (for onions) it would be 6.9
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Lastly, if you multiply 100 x 0.69 (for lettuce) if would be 69

Which are the most? Tomatoes.

~ Hope this helps, and if you have any questions or concerns, feel free to pm me or comment down below :)

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2 years ago

An angle measures 16° more than the measure of its supplementary angle. What is the measure of each angle?

Olenka [21]

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Then, you can use the division property of equality to find the value of x

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1 year ago