(The choices for the first one is 90 or 180)

Mathematics

2 answers:

kakasveta [241]3 years ago

5 0

1. 180
2. 1 & 4
3. 1
the answer to the question

sammy [17]3 years ago

4 0

The first one is 180 because the angles of a triangle add up to 180

angles 1 and 4

And finally, the last one is 1

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Flura [38]

5)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 5}}\quad ,&{{ -3}})\quad 
% (c,d)
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies -1
\\\\\\
% point-slope intercept
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\left. \qquad \right. \uparrow\\
\textit{point-slope form}
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6)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 2}}\quad ,&{{ 1}})\quad 
% (c,d)
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\textit{point-slope form}
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7)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
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% (c,d)
\end{array}
\\\\\\
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\\
\left. \qquad \right. \uparrow\\
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8)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ -2}}\quad ,&{{ 0}})\quad 
% (c,d)
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{5}{2}
\\\\\\
% point-slope intercept
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\\
\left. \qquad \right. \uparrow\\
\textit{point-slope form}
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9)

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ -2}}\quad ,&{{ 0}})\quad 
% (c,d)
\end{array}
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% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{5}{2}
\\\\\\
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y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-0=\cfrac{5}{2}(x-(-2))
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$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{-2}}\quad ,&{{ -2}})\quad 
% (c,d)
\end{array}
\\\\\\
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slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{2}
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\left. \qquad \right. \uparrow\\
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