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Natasha_Volkova [10]
2 years ago
7

WILL MARK BRAINLIEST IF ANSWERED CORRECTLY!

Mathematics
1 answer:
DanielleElmas [232]2 years ago
6 0
First question:

4(3x-5) + (2x -2)(4 + 3x-5)
Simplify -----> 12x - 20 + (2x-2)(3x-1)
Multiply the second part -----> 12x - 20 + 6x^2 -8x + 2
Combine like terms --------> 6x^2 + 4x - 18

Each side of the addition sign represents one of the rectangles above which is then added to get the area of the entire figure.

Second question:

The average is the summation of each data value divided by the number of data values. So it would be

(4 + 5 + 9)/ 3

Simplify ------> 18/3
Divide --------> 6
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We are given the following equation and want to find which value of x will make it true:

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Divide both sides by -6

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Thus, the value that will make 3-6x=21 is x=-3. Let me know if you need any clarifications, thanks!

~ Padoru

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A test with the greater than option is right tailed while that with the less than option is left tailed.

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What is the percent of the figure is shaded?
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