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galben [10]
3 years ago
5

Find the equation of the line that is perpendicular to y = – 1 4 x – 8 and passes though the point (2, –4).

Mathematics
2 answers:
bearhunter [10]3 years ago
7 0

Answer:

It's A. on USATestprep

Step-by-step explanation:

y = 4x - 12

damaskus [11]3 years ago
6 0
The answer would mostly be one hundred and eight
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3 0
3 years ago
Carbon has a half life of 5730 years. How much carbon would be left after 3 half life's with 56 grams
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Answer:

how much was originally?

Step-by-step explanation:

8 0
3 years ago
When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units
alexira [117]

Answer:

r=1/π

Step-by-step explanation:

Area of the circle is defined as:

Area = πr²

Derivating both sides

\frac{dA}{dr}=2πr

\frac{dA}{dt}  =  \frac{dA}{dr} x \frac{dr}{dt}  =  2πr\frac{dr}{dt}

If area of an expanding circle is increasing twice as fast as its radius in linear units. then we have : \frac{dA}{dt}  =2\frac{dr}{dt}

Therefore,

2πr \frac{dr}{dt}  =  2  \frac{dr}{dt}

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5 0
3 years ago
Read 2 more answers
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