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kirza4 [7]
3 years ago
10

Aliyah marks a line on her driveway with a piece of chalk and another line 50ft away Then she stands with both feet at the line

and runs to the opposite line While she runs she times how long it takes her to get to the other line What is she trying to find with the distance and time
Chemistry
1 answer:
Mariulka [41]3 years ago
3 0

Answer:

Speed

Explanation:

Aliyah must have been trying to find her speed.

The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,

  speed = \frac{distance}{time} with a unit of m/s.

<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>

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djyliett [7]
F(x)=-1/x
g(x)=√(3x-9)

Domain of (f/g)(x):  ??

1We find out the domain of f(x):
f(x) is a rational function, therefore can take real values if the denominator is not ("0"), therefore the domain of f, will be all values excpet "0"
Domain of  f: (-∞,0)U(0,+∞); 


                                                          o
----------------------------------------------O-------------------------------------------
←-------- -∞                                                               +∞           ----------→


g(x) is a radical square root  function, therefore the radicand have to be greater than o equal to "0"
3x-9≥0
3x≥9
x≥3

                                                         3
.........................................................Ф--------------------------------
←--------- - ∞                                                        +∞ -----------→
          
(f/g)(x) = (-1/x) / (√(3x-9)) is a rational function with a square root in the denominator,also the square root don´t take the value of "0";
Therefore:
3x-9>0
3x>9
x>3

The domain of the function (f/g)(x) only can take the values found in all three domains at once.
                                                            3
............................................................0---------------------------------
←--------- -∞                                                          +∞-------------→

Answer: (3,+∞)
7 0
3 years ago
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trapecia [35]

Answer:

See explaination

Explanation:

Chlorine’s disinfection properties have helped improve the lives of billions of people around the world. Chlorine also is an essential chemical building block, used to make many products that contribute to public health and safety, advanced technology, nutrition, security and transportation.

Please kindly check attachment for the step by step solution of the given problem.

4 0
3 years ago
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UkoKoshka [18]

Answer:

1. 25%

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