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Andreas93 [3]
3 years ago
15

I need help please someone help me

Mathematics
1 answer:
Olenka [21]3 years ago
4 0

Yes you can assume the statement because the panel is 180° and supplementary is 180°.

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Help again...its for math offering 15 points
Anettt [7]

Answer:

\tan \dfrac{\theta}2 = \dfrac{1}2

Step by step Explanation:

\sin \theta = \dfrac{\text{Perpendicular} }{\text{Hypotenuse}} = \dfrac{12}{15}\\\\\\\cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}= \dfrac{9}{15}\\\\\text{Now,}\\\\\tan \dfrac{\theta}2 = \dfrac{\sin \tfrac{\theta}2}{\cos \tfrac{\theta}2}\\\\\\~~~~~~~~=\dfrac{2\cos \tfrac{\theta}2 \sin \tfrac{\theta}2 }{2\cos^2 \tfrac{\theta}2}~~~~~~;\left[\text{Multiply by}~ 2\cos\tfrac{\theta}2 \right]

         =\dfrac{\sin \theta}{1+ \cos \theta}~~~~~~~~~~~~;[2 \sin x \cos x = \sin 2x ~ \text{and}~ 2\cos^2 x =1+\cos 2x]\\\\\\=\dfrac{\tfrac{12}{15}}{1+ \tfrac{9}{15}}\\\\\\=\dfrac{\tfrac{12}{15}}{\tfrac{24}{15}}\\\\\\=\dfrac{12}{15}\times \dfrac{15}{24}\\\\\\=\dfrac{12}{24}\\\\\\=\dfrac{1}2

4 0
1 year ago
Solve the formula please!!!!!!!!
Rashid [163]

Answer:

Option A. is the right choice.

Step-by-step explanation:

\frac{1}{3}b^2h=V\\\\hb^2=3V\\\\b^2=\frac{3V}{h}\\\\b=\sqrt{\frac{3V}{h}}

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Answer:

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Step-by-step explanation:

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A rate of change is a rate that describes how one quantity changes in relation to another quantity.

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