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Liono4ka [1.6K]
3 years ago
8

What is the simplified form of this expression? (8x − 7) + (-2x − 9) − (4x − 3)

Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
6 0
<h2>Answer:</h2>

The simplified form is 2 x-13

<h2>Given: </h2>

(8 x-7)+(-2 x-9)-(4 x-3)

<h2>Step-by-step explanation:</h2>

From question, we need to find the simplified form of the given expression which means we need to make the expression more understandable.

The expression contains ‘x’ which is a variable whose values will change according to the set of given conditions. The variable can be symbols or letters. The values of the variable will be calculated with the value of the constants whose value never changes with the problem.

Now, we need to multiply the signs within the brackets,

\Rightarrow 8 x-7-2 x-9-4 x+3

Now, on adding and subtracting,

\therefore 2 x-13

Murljashka [212]3 years ago
4 0

Answer:

The answer to your question is:         2x -13

Step-by-step explanation:

         Simplified                             (8x − 7) + (-2x − 9) − (4x − 3)

                                                       8x - 7 - 2x - 9 - 4x + 3

         Simplified like terms            8x - 2x - 4x - 7 - 9 + 3

                                                       2x -13                                                        

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Only p(x) has an average rate of change of -4 over [-2, 2].

Find the average rate of change of each given function over the interval [-2, 2]]:

The average rate of change of m(x) over [-2, 2]:

<h3>What is the average rate?</h3>

The average rate of change = \frac{m(b)-m(a)}{b-a}

Where, a = -2, m(a) = -12

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Plug the values into the equation

The average rate of change

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The average rate of change of n(x) over [-2, 2]:

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Where, a = -2, n(a) = -6

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Plug the values into the equation

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The average rate of change = \frac{q(b)-q(a)}{b-a}

Where, a = -2, q(a) = -4

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Plug the values into the

The average rate of change = \frac{-4-12}{2-(-2)}

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The average rate of change of p(x) over [-2, 2]:

The average rate of change = \frac{p(b)-p(a)}{b-a}

Where, a = -2, p(a) = 12

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Plug the values into the equation

The average rate of change = \frac{-4-12}{2-(-2)}

=\frac{-16}{4}

The average rate of change = -4

The answer is D.

Only p(x) has an average rate of change of -4 over [-2, 2].

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