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Lorico [155]
3 years ago
13

What is the absolute value of |-20|+|30|

Mathematics
1 answer:
Marianna [84]3 years ago
5 0

Answer: 50

Step-by-step explanation:

|-20| = 20

|30| = 30

20 + 30 = 50

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What value for C will make the expression a perfect square trinomial x2-7x+c
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Answer:

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Step-by-step explanation:

we know that

A perfect square trinomial is of the form

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In this problem we have

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so

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x^{2}-7x+c=x^{2}-2ax+a^{2}

we have

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and

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<u>Solve the equation A</u>

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a=3.5

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therefore

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