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Anton [14]
2 years ago
7

PLEASE HELP PLEASE SOLVE ALL!!!

Mathematics
1 answer:
VARVARA [1.3K]2 years ago
4 0

Answer:

x= -6 | I only have an answer for #7 but you should use a website called Symbolab :)

Step-by-step explanation:

x+16+x+12+2x+15=19

<em>group like terms: </em>

4x+43=19

<em>subtract 43 from both sides:</em>

4x+43=19

   -43 -43

<em>simplify</em>:

4x=-24

<em>divided both sides by 4:</em>

x=-6

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tresset_1 [31]

The average rate of change of <em>g(x)</em> over the interval [2, 8] is given by

(<em>g</em> (8) - <em>g</em> (2)) / (8 - 2)

In other words, it's the slope of the line through the points (2, <em>g</em> (2)) and (8, <em>g</em> (8)).

Use the definition of the function to evaluate it at the points in the numerator:

• 8 ≥ 4, so using the second piece, <em>g</em> (8) = -0.5(8) + 8 = 4

• 2 < 4, so <em>g</em> (2) = 5(2) + 1 = 11

Then the average rate of change is

(<em>g</em> (8) - <em>g</em> (2)) / (8 - 2) = (4 - 11) / 6 = -7/6

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evablogger [386]
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Keith_Richards [23]

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Step-by-step explanation:

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