4 years ago

Can you please help me with number 8 thank you

Mathematics

1 answer:

TEA [102]4 years ago

3 0

It does not give a second number but it could be 16x1

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vodomira [7]

Answer:

see below

Step-by-step explanation:

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3 years ago

A relationship that has a constant rate of change represented by a line.

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3 years ago

Please Help. <br><br> A solution to a system of equations is?

-BARSIC- [3]

Answer:

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3 years ago

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vova2212 [387]

Answer:

x = 51.05 feet

Step-by-step explanation:

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3 years ago

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The angle θ lies in Quadrant II .

Andreyy89

let's keep in mind that, in the II Quadrant, cosine is negative and sine, is positive.

cosine is adjacent/hypotenuse, however the hypotenuse is simply a radius unit, and thus is never negative, so in the -(2/3) the negative must be the numerator, -2.

$\bf cos(\theta )=\cfrac{\stackrel{adjacent}{-2}}{\stackrel{hypotenuse}{3}}\impliedby \textit{let's find the \underline{opposite side}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ \pm\sqrt{3^2-(-2)^2}=b\implies \pm\sqrt{5}=b\implies \stackrel{\textit{II Quadrant}}{+\sqrt{5}=b}~\hfill tan(\theta )=\cfrac{\stackrel{opposite}{\sqrt{5}}}{\stackrel{adjacent}{-2}} \\\\\\ ~\hspace{34em}$

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4 years ago