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2 years ago

Find the slope of the line that contains points (a,c) and (m,c)

1 answer:

5 0

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~{{ a}} &,&{{ c}}~) 
% (c,d)
&&(~{{ m}} &,&{{ c}}~)
\end{array}
\\\\\\
% slope = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{c-c}{m-a}\implies \cfrac{0}{m-a}\implies 0$

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Esmerelda is five times as old as Ruth. Four years ago, the sum of their ages was 22 years. How old is each now?

Lina20 [59]

Answer:

Ruth is x+4=7/3+4, esmerelda is 5x+4=35/3+4

Step-by-step explanation:

if Ruth is x, esmerelda is 5x,

four years ago,

Ruth is x+4, esmerelda is 5x+4, depend on the sum, we get:

x+4+5x+4=22, x=7/3

so:

Ruth is x+4=7/3+4, esmerelda is 5x+4=35/3+4

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2 years ago

Someone please help! find x round to the nearest tenth! trigonometry!

TEA [102]

Answer:

Step-by-step explanation:

Look at the picture.

Use sine:

$sine=\dfrac{opposite}{hypotenuse}$

We have a measure of the angle and length of the opposite:

$\alpha=28^o,\ opposite=350\ ft$

$\sin28^o\approx0.4695$

Substitute:

$\dfrac{350}{x}=0.4695$

$\dfrac{350}{x}=\dfrac{4695}{10000}$ <em>cross multiply</em>

$4695x=3500000$ <em>divide both sides by 4695</em>

$x=\dfrac{3500000}{4695}\to x\approx745.5$

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2 years ago

Simplify the picture below

podryga [215]

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((x-6)(x+3))/(x+3)
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x-6

Hope I didn't mess up for your sake!

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2 years ago

will mark brailiest if you take 20 steps north then 20 west then 20 south then east were would you end up at

Dmitriy789 [7]

Answer:

The same spot as you started in :0

Step-by-step explanation:

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