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stiv31 [10]
4 years ago
7

Solve x^2=12x-15 by completing the square. which is the solution set of the equation?​

Mathematics
1 answer:
svlad2 [7]4 years ago
6 0

Use the formula  (b/2)^2 in order to create a new term. Solve for  x  by using this term to complete the square.

Exact Form:

x  =  ±√21  +  6

Decimal Form:

x  =  10.58257569…, 1.41742430…

____

I hope this helps, as always. I wish you the best of luck and have a nice day, friend..

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Klio2033 [76]

Answer:

I am pretty sure there are 10 people in line.

Since Ashley is the seventh person in line, we can deduce that <u><em>there are 6 people in front of her</em></u>.

Since the amount of people in front of her is "twice as many people as there are behind her," we can divide the value of the people in front of her in half to get the value of people behind her.

6/2 is 3, so <em>there are </em><u><em>3 people behind Ashley</em></u><em>. </em>

Now, lets add the amount of people in front of Ashley to the amount of people behind her. 3 + 6 = 9, and since Ashley is also in the line, we should add 1 to the sum.

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3 years ago
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Vaselesa [24]

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