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Neko [114]
2 years ago
10

Solve x^2+12x=-11by completing the square which is the solution set of the equation A={-11,-1} B={-11,1} C={11,-1} D={11,1}

Mathematics
2 answers:
harkovskaia [24]2 years ago
8 0

Answer:

-11 and -1

Step-by-step explanation:

x² + 12x = -11

x² + 12x + 36 = -11 + 36

(x+6)² = 25

x + 6 = √25

x + 6 = 5

x = 5 - 6

x = -1

x+6 = -5

x = -11

Musya8 [376]2 years ago
4 0

Answer:B

Step-by-step explanation:

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My brother told me he will give me $.25 per day for 10 days OR he will give me $.01 then give me double the following day for 10
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Answer:

you will get more money if he gives you 1 cent per day then doubles it

Step-by-step explanation:

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2 years ago
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3 0
3 years ago
The answer to the problem i asked
guapka [62]
8(4x+5)=136
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8 0
3 years ago
An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes to the nearest
Anit [1.1K]
Step 1
Formulate a recursive sequence modeling the number of grams after n  minutes.
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a(n) = 780*[0.829<span>^n]
</span>
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6 0
3 years ago
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