3 years ago

Question 1 of 10

Mathematics

1 answer:

sergey [27]3 years ago

3 0

Answer:

The answer is 120, 80, 100, 180, 40, 0, 240

Step-by-step explanation:

In this situation, quadrupling means to times everything (everything which is 30, 20, 25, 45, 10, 0, 60) by 4, which will give you 120, 80 ,100 ,180, 40, 0, 240

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ivanzaharov [21]

Answer:

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Step-by-step explanation:

Since we have to use the complete the square method, we first need to rewrite the equation in the form $x^{2}+2ax+a^{2}=(x+a)^{2}$ .

This results in $x^{2} + 14x + 7^{2} = 15 + 7^{2}$ .

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Factoring the left side gives us $(x+7)^{2} = 64$ .

Finally we solve the equations: $x+7=\sqrt{64}$ and $x+7=-\sqrt{64}$ .

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Step-by-step explanation:

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Vilka [71]

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lakkis [162]

Answer:

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Step-by-step explanation:

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