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svp [43]
3 years ago
14

Which value must be added to the expression x^2+12x to make it a perfect square trinomial

Mathematics
1 answer:
dedylja [7]3 years ago
4 0
The answer is D.144
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What is the value of x in the equation x3=27125 ?
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Answer:

x = 30.0462

Step-by-step explanation:

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I hope this helps!

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The length of a rectangle is 5 centimeters less than twice it’s width. The perimeter of the rectangle is 80 cm. What are the dim
algol [13]
<h3><u>The length is equal to 25.</u></h3><h3><u>The width is equal to 15.</u></h3>

l = 2w - 5

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2(2w - 5) + 2w = 80

Distributive property.

4w - 10 + 2w = 80

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6w - 10 = 80

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Now that we have a value for w, we can plug it into the original equation to solve for l.

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