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sergeinik [125]
4 years ago
13

If an object fell to the ground from the top of a 1,600-foot-tall building at an average speed of 160 feet per second, how long

did it take to fall?
Mathematics
2 answers:
Rufina [12.5K]4 years ago
5 0
The answer is 10 seconds.
anzhelika [568]4 years ago
3 0
Well 1,600/160= 10
so it will take 10 seconds to reach the ground not taking in any variables such as wind carrying it to the side and suspending in the air any longer so
=10 seconds
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Step-by-step explanation:

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Convert the improper fraction to a mixed number​
alex41 [277]
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4 0
3 years ago
Read 2 more answers
Help plz!!!
lara [203]

Answer with explanation:

→→→Function 1

f(x)= - x²+ 8 x -15

Differentiating once , to obtain Maximum or minimum of the function

f'(x)= - 2 x + 8

Put,f'(x)=0

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2 x=8

Dividing both sides by , 2, we get

x=4

Double differentiating the function

f"(x)= -2, which is negative.

Showing that function attains maximum at ,x=4.

Now,f(4)=-4²+ 8× 4-15

           = -16 +32 -15

          = -31 +32

          =1

→→→Function 2:

f(x) = −x² + 2 x − 3

Differentiating once , to obtain Maximum or minimum of the function

f'(x)= -2 x +2

Put,f'(x)=0

-2 x +2=0

2 x=2

Dividing both sides by , 2, we get

x=1

Double differentiating the function,gives

f"(x)= -2 ,which is negative.

Showing that function attains maximum at ,x=1.

f(1)= -1²+2 ×1 -3

   = -1 +2 -3

  = -4 +2

 = -2

⇒⇒⇒Function 1  has the larger maximum.

6 0
3 years ago
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3 years ago
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Answer:

$6

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Divide 1.80 by 3, then multiply that answer by 10.

6 0
3 years ago
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