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ELEN [110]
2 years ago
7

Helpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Mathematics
1 answer:
Citrus2011 [14]2 years ago
8 0

Answer:

76

Step-by-step explanation:

I D K this is a puzzle

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11. The completion of a chemical reaction is expressed by the equation y = 300 - 4x - XP, where y is
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Answer:

The reaction ca occur at 10 degree Celsius or -14 degree Celsius.                                          

Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

y = 300 - 4x -x^2

where y is  the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius  at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

160 = 300 - 4x -x^2\\x^2 + 4x  - 140 = 0\\x^2 + 14x -10x -140 = 0\\x(x+14)-10(x+14)=0\\(x-10)(x+14) = 0\\(x-10) =0, (x+14) =0\\x = 10, x = -14

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.

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3 years ago
Least common denominator of 6and4 are____.
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QveST [7]
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Regular pentagonal tiles and triangular tiles are arranged in the pattern shown. The pentagonal tiles are all the same size and
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First of all you have to find the missing measurements. The actual measurements for the angles in the hexagon are not given, but they give you an expression. You have to solve for x first so that you can plug it in and find the angle measurement. You have to equal the two sides that are given to you like this: 20x+48=33x+9. You solve for x and then plug it into each angle measurement. This should give you 108. Since it is a regular hexagon all of the sides are equal. If you look at the angle at the top of the hexagon you'll see two triangles and the angle. Since it lies on a straight line, it is all equal to 180. You already have the angle measurement of the hexagon and are missing the triangles. So 180-108=72. 72 is the missing part of the angle. You divide this by 2 in order to find each triangle angle measurements. the answer is 36 degrees. 
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What does that symbolize?
abruzzese [7]

Answer:

I don't know if im right but t

o clarify, the m is sometimes used to distinguish between the measure of the angle (m∠ABC = a number, in degrees/radians) and the actual angle itself (the geometric object ∠ABC).

Step-by-step explanation:

4 0
3 years ago
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