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horrorfan [7]
3 years ago
5

I have solved that the slope is 2, please please please help - it would make my Hanukkah :)

Mathematics
1 answer:
Sergio [31]3 years ago
5 0

Answer:

y-7 = 2 (x-1)

Step-by-step explanation:

slope = (y2-y1)/(x2-x1)

    (7-3)/ (1--1)

  =(4)/(1+1)

  = 4/2

 = 2


point slope form

y-y1 = m(x-x1)

y-3 = 2 (x--1)

y-3 = 2(x+1)


we can also pick the other point

y-y1 = m(x-x1)

y-7 = 2 (x-1)

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Identify the percent, amount, and base in this problem.<br> What percent of 80 is 40?
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Answer:

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Step-by-step explanation:

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3 years ago
the hoover dam is 725 feet tall. how long would it take an object to fall from the top to the base of the dam? round the answer
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Answer:

45.05 seconds

Step-by-step explanation:

Use the formula: d = vi t + \frac{1}{2} at^{2}

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m is meters and s is seconds. They are units of measurement so leave them be.

Assuming the object is simply dropped, the initial velocity is 0 since the object was not moving before it was dropped.

The distance is 725 feet, which is 220.98 meters.

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Time is what we are trying to find so just leave it as the variable t.

So plug the values into the equation:

220.98m = (0)(t) + \frac{1}{2} (9.81m/s^{2})(t)

220.98m = (4.905m/s^{2})(t)

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Remember to pay attention to units because your answer will be wrong otherwise

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