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Zinaida [17]
4 years ago
8

Factor the following trinomial completely 3x^2+12x+12

Mathematics
1 answer:
Dmitry_Shevchenko [17]4 years ago
8 0
Factor the following:
3 x^2 + 12 x + 12
Factor 3 out of 3 x^2 + 12 x + 12:
3 (x^2 + 4 x + 4)
The factors of 4 that sum to 4 are 2 and 2. So, x^2 + 4 x + 4 = (x + 2) (x + 2):
3 (x + 2) (x + 2)
(x + 2) (x + 2) = (x + 2)^2:
Answer:  3 (x + 2)^2
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Answer:

Option D) B and C          

Step-by-step explanation:

we know that

To find out the percentage of high school teachers that have a second job, divide the number of teachers that have a second job by the total number of teachers

<em>Survey A</em>

\frac{28}{110}=0.2545

Convert to percentage

0.2545(100)=25.45\%

<em>Survey B</em>

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Convert to percentage

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<em>Survey C</em>

\frac{21}{70}=0.3

Convert to percentage

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<em>Survey D</em>

\frac{32}{80}=0.4

Convert to percentage

0.4(100)=40\%

Compare the percentages

Surveys B and C have the same percentage

therefore

Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Data provided in the question;

Treasury bond = $2000

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4 years ago
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