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bonufazy [111]
3 years ago
13

If an object is dropped from a height of 200 feet, the function h(t) = -16t^2 + 200 gives the height of the object after t secon

ds. Approximately, when will the object hit the ground?
Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer: The answer should be C.  3.54 seconds

Amiraneli [1.4K]3 years ago
3 0
200 feet = 200 * 0.3048 = 60.96 m
e = 0.5 * g * t ^2
e = 60.96
g = 9.8 m/s2
t = ?
t^2= 60.96 / 0.5 * 9.81 = 12.440
t = 3.5271 s
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2 years ago
How many solutions are there to this equation 3x(x-4)+5-x=2x-7
stich3 [128]

Answer:

  2 solutions

Step-by-step explanation:

I like to use a graphing calculator to find solutions for equations like these. The two solutions are ...

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To solve this algebraically, it is convenient to subtract 2x-7 from both sides of the equation:

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  3x^2 -12x +5 -x -2x +7 = 0 . . . . . eliminate parentheses

  3x^2 -15x +12 = 0 . . . . . . . . . . . . collect terms

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<em>Alternate method</em>

Once you get to the quadratic form, you can find the number of solutions without actually finding the solutions. The discriminant is ...

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2 years ago
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Answer:

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Step-by-step explanation:

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5 0
2 years ago
I’ll give brainliest!!!
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14a. =

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