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2 years ago

5

Hi there, can anyone please help me? I need this soon. The question is: Tell whether the angles are adjacent or vertical then fi

nd the value of X. I already know that it's vertical but I need help on finding X.

1 answer:

mihalych1998 [28]2 years ago

4 0

Answer:

Step-by-step explanation:

4x - 25 = 75° (opposite angles)

4x= 75+25

4x= 100

x= 100/4= 25°

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2 years ago

Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.

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Suppose that the height (in centimeters) of a candle is a linear function of

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The two points are then as (9,24.5) and (23,17.5).

$\mathrm{Find\:the\:line\:}\mathbf{y=mx+b}\mathrm{\:passing\:through\:}\left(9,\:24.5\right)\mathrm{,\:}\left(23,\:17.5\right)$

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$m=\frac{17.5-24.5}{23-9}$

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$\mathrm{Plug\:the\:slope\:}-0.5\mathrm{\:into\:}y=mx+b$

$y=\left(-0.5\right)x+b$

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$24.5=\left(-0.5\right)\cdot \:9+b$

$24.5=\left(-0.5\right)\cdot \:9+b$

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$b=29$

$\mathrm{Construct\:the\:line\:equation\:}\mathbf{y=mx+b}\mathrm{\:where\:}\mathbf{m}=-0.5\mathrm{\:and\:}\mathbf{b}=29$

$y=-0.5x+29$

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$y=-0.5*21+29=18.5$

Thus the height of the candle after 21 hours is 18.5 centimeters.

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