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2 years ago

Find the slope of the line

Mathematics

1 answer:

matrenka [14]2 years ago

8 0

Answer:

Step-by-step explanation:

To find the slope of the line, use the equation:

slope = $\frac{y_2-y_1}{x_2-x_1}$

Let's find 2 obvious points on the line

(5,5) and (10,10)

Since (10,10) comes after (5,5), this will be our $(x_2,y_2)$

(5,5) will be our $(x_1,y_1)$

Let's Solve!

$\frac{10-5}{10-5} =\frac{5}{5} =1$

Therefore, our slope is 1

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3 years ago

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

alina1380 [7]

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

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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

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

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3 years ago