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Sonja [21]
4 years ago
7

Find the sum and express it in simplest form. (2x - 8C + 5) + (-x + C - 8)

Mathematics
2 answers:
pashok25 [27]4 years ago
5 0
X - 7C - 3 (add the like terms)
Kisachek [45]4 years ago
5 0

<em><u>Look</u></em><em><u> </u></em><em><u>at</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>attached</u></em><em><u> </u></em><em><u>picture</u></em>

<em><u>H</u></em><em><u>ope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

<em><u>G</u></em><em><u>ood</u></em><em><u> </u></em><em><u>luck</u></em><em><u> </u></em><em><u>on</u></em><em><u> </u></em><em><u>your</u></em><em><u> </u></em><em><u>assignment</u></em>

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\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ X(\stackrel{x_1}{x}~,~\stackrel{y_1}{y})\qquad Z(\stackrel{x_2}{11}~,~\stackrel{y_2}{-5}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{11+x}{2}~~,~~\cfrac{-5+y}{2} \right)=\stackrel{\stackrel{midpoint}{y}}{(3,-1)}\implies \begin{cases} \cfrac{11+x}{2}=3\\[1em] 11+x=6\\ \boxed{x=-5}\\ \cline{1-1} \cfrac{-5+y}{2}=-1\\[1em] -5+y=-2\\ \boxed{y=3} \end{cases}

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the angle of elevation of a top of a tree from a certain point on the ground is 45 degree. if the tree is 15 meters high,how is
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