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Dimas [21]
3 years ago
5

3x(x−2), when x=7

Mathematics
2 answers:
gtnhenbr [62]3 years ago
7 0

Answer:

105

Step-by-step explanation:

subbing x for 7:

3*7(7-2)=21*5=105

raketka [301]3 years ago
3 0
105 right? because 3(7)((7)-2) 21(5) =105
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Step-by-step explanation:

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snow_lady [41]

Answer:

x = 30°

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Step-by-step explanation:

Hello!

The sum of all the angles in a triangle is 180°. So we can set up an equation for this question.

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4 0
1 year ago
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hope it helps!!!

6 0
2 years ago
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