40 POINTS IF YOU GIVE ME THE FULL RIGHT ANSWERS

Mathematics

2 answers:

Lina20 [59]3 years ago

8 0

This is not possible because I can only type, I can't show you a scatter plot.

melisa1 [442]3 years ago

6 0

I cannot answer tou because i only can write and this question needs a data table and other things that are impossible to do here

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Step-by-step explanation:

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Find the number of sides when:

svp [43]

((n-2)×180)/n = 156
(n-2)×180=156n
24n =360
n =15

360/n =36
n = 10

a)15 b)10

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skelet666 [1.2K]

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Step-by-step explanation:

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4 years ago

This is my next Trigonometry question I am needed help on- I just want to be sure I've got it right, or if not, then the steps I

makkiz [27]

$\bf \textit{simmetry identities}\\\\
sin(-\theta)=-sin(\theta)\\\\
-------------------------------\\\\
sin(-\theta)=\cfrac{1}{5}\implies -sin(\theta)=\cfrac{1}{5}\implies sin(\theta)=\cfrac{-1}{5}\cfrac{\leftarrow opposite=b}{\leftarrow hypotenuse=c}
\\\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\implies \pm\sqrt{5^2-(-1)^2}=a
\\\\\\
\pm\sqrt{24}=a\implies \pm2\sqrt{6}=a$

so. hmm which is it? the +/- ? well, neverminding for a second, the value of tangent, just looking at the sign, the tangent is positive,

tangent = opposite/adjacent.... so that only happens, when both are the same sign, + or - both

now, we know the sine is -1/5.. if the sine is negative, the cosine also has t to be negative, so we'd use the -2√(6) = a

thus $\bf cos(\theta)=\cfrac{adjacent}{hypotenuse}\implies cos(\theta)=\cfrac{-2\sqrt{6}}{5}$

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3 years ago