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ElenaW [278]
3 years ago
5

Phineas is the lead research scientist in a lab and responsible for ordering supplies and equipment. The lab is out of petri dis

hes, so Phineas orders 185 of them. The lab uses 12 petri dishes each day.
Mathematics
2 answers:
IRINA_888 [86]3 years ago
5 0
Is the question how long would the 185 petri dishes last because if so it would be about 15 days
Hope this helped ;)
Kitty [74]3 years ago
3 0

Answer:

The relationship is between the days that have gone by and the number of petri dishes.  The point (0, 185) means that if 0 days have gone by there are 185 petri dishes.  The number of petri dishes decreases by 12 each day, so the slope is –12.   Use the slope-intercept form to write the equation y = –12x + 185.

Thats the actual answer from edge

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Answer:

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Step-by-step explanation:

we know that

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Remember that

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m=\frac{y2-y1}{x2-x1}

<em>Find the slope of the first line</em>

we have the points

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substitute in the formula

m_1=\frac{-9+1}{1+3}

m_1=\frac{-8}{4}

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<em>Find the slope of the second line</em>

we have the points

(1,4) and (5,6)

substitute in the formula

m_2=\frac{6-4}{5-1}

m_2=\frac{2}{4}

Simplify

m_2=\frac{1}{2}

<em>Compare the slopes</em>

m_1=-2

m_2=\frac{1}{2}

Find out the product

m_1*m_2=(-2)(\frac{1}{2})=-1

therefore

The lines are perpendicular

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3 years ago
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Answer:

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Step-by-step explanation:

Given;

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