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galben [10]
2 years ago
7

What equation is equivalent to x2 + 20x + 81 = -27? Can you show me how you got the answer please

Mathematics
1 answer:
Alla [95]2 years ago
4 0

The equivalent equation is x² + 20x = -102

<h3>Simplification of quadratic equation</h3>

The equivalent equation can be obtained by factorizing or simplifying the given quadratic equation as shown below;

x² + 20x + 81 = -21

<em>collect similar terms together</em>

x² + 20x + 81 + 21 = 0

x² + 20x + 102 = 0

The equation can also be written as x² + 20x = -102

Thus, the equivalent equation is x² + 20x = -102

Learn more about simplification of quadratic equation here: brainly.com/question/1214333

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The answer is 223.75 because you multiply 12.5 and 17.9
5 0
3 years ago
20 divided by 4 - 5+12
likoan [24]
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Hope I Helped :D




7 0
3 years ago
Read 2 more answers
A company’s stock was selling at $25 a share a month later it was selling at $30 a share what is the percent increase
rjkz [21]

Answer:

20% increase

Step-by-step explanation:

To find the percent increase, you can divide the increase value by the original: 30/25 = 1.2 --> 120%. Next, since they ask for the percent of increase, you can subtract 1 or 100% from your answer which would give you a final answer of 20% increase.

4 0
3 years ago
What equation represents a line that is parallel to y=3X +5
Lina20 [59]
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:)

8 0
3 years ago
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