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aksik [14]
3 years ago
6

Please answer see the image 30 points!

Mathematics
1 answer:
Nataly [62]3 years ago
8 0

Answer:

<h2>37.7 </h2><h2 />

Step-by-step explanation:

perimeter of semicircle = 1/2 π d

                                       = 1/2 π (6)

                                       = 9.425 x 4 semicircles

                                       = 37.7

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Use the discriminant, b2 - 4ac, to determine which equation has complex solutions.
ruslelena [56]

Using the discriminant, the quadratic equation that has complex solutions is given by:

x² + 2x + 5 = 0.

<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

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y = ax² + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

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In this problem, we want a negative discriminant, hence the equation is:

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As the coefficients are a = 1, b = 2, c = 5, hence:

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More can be learned about the discriminant of quadratic functions at brainly.com/question/19776811

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