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Ad libitum [116K]
3 years ago
14

For an angle 0 with the point (-20,-21) on its terminating side, what is the value of cosine ?

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

check the picture below.


\bf (\stackrel{a}{-20},\stackrel{b}{-21})\impliedby \textit{let's find the \underline{hypotenuse}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c=\sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=\stackrel{adjacent}{-20}\\ b=\stackrel{opposite}{-21}\\ \end{cases} \\\\\\ c=\sqrt{(-20)^2+(-21)^2}\implies c=\sqrt{841}\implies c=29 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill cos(\theta )=\cfrac{\stackrel{adjacent}{-20}}{\stackrel{hypotenuse}{29}}~\hfill

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The solution to given inequality is:

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Step-by-step explanation:

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3 years ago
37
olganol [36]

Correct Option is D.  Lines 72-75 ("Consider . . . happiness")

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<h3>The lines from passage are - </h3>

Consider—I address you as a legislator—

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<h3>This question is based on paragraph from Mary Wollstonecraft, A Vindication of the Rights of Woman. Originally published in 1792, which is given below -</h3>

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"Contending for the rights of woman, my main argument is built on this simple principle, that if she be not prepared by education to become the companion of man, she will stop the progress of 45 knowledge and virtue; for truth must be common to all, or it will be inefficacious with respect to its influence on general practice.

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2 years ago
7. What is the area of the following circle. Use 3.14 for pi<br> Radius is 11cm
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3 years ago
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