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Studentka2010 [4]
2 years ago
8

a dime is dropped from a building at 1.024 ft . if the equation for height as a function of time is h(t)=-16t^2+ initial height

where is t is time in seconds and h(t) is height in feet, how many seconds will it take for the dime to hit the ground?
Mathematics
1 answer:
babunello [35]2 years ago
7 0

Answer:

The dime hits the ground after 8 sec.

Step-by-step explanation:

Set h(t) = -16t^2 + h(0) equal to 0:  -16t^2 + 1,024 ft = 0, or:

16t^2 = 1,024 ft, or:

 t^2 =  64 ft^2

Then t = +8 sec

The dime hits the ground after 8 sec.

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Zanzabum

Answer:

x intercept: 5

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Step-by-step explanation:

  • let us plot the graph for better understanding.
  • we will represent f(x) on y-axis so, the equation will become: y= 50-10x
  • the equation is of the form : y=mx+c

[where, m: slope of the line

c : y-intercept ]

  • meaning of x intercept:  the x-coordinate of the point where the line meets x-axis
  • meaning of y intercept:  the y-coordinate of the point where the line meets y-axis
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[ (0,50) lies on the line only. substitute and check if the point satisfies the above line equation]

  • by seeing the graph in the attachment and by the definitions given above, we can say that,

x intercept:  5

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