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marishachu [46]
3 years ago
7

Solve x^2 – 8x + 41 = 0 for x.

Mathematics
1 answer:
icang [17]3 years ago
5 0
<span>\displaystyle x^2 - 8x + 41 = 0 \\\\ \Delta=b^2-4ac \\ \Delta=(-8)^2-4\cdot1\cdot41 \\ \Delta=64-164 \\ \Delta=-100 \\ \\ X_{1,2}= \frac{-b\pm i \sqrt{-\Delta} }{2a} = \frac{8 \pm 10i}{2} \\ \\ X1=4-5i \\ \\ X2=4+5i</span>
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A bicycle helmet has a selling price of $50. The helmet is discounted 30% off the selling price. The sales tax rate is 6%. What
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Convert 30% to a decimal by dividing by 100 = 0.30

Multiply by the cost of the helmet, $50
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50-15 = $35, the sale price of the helmet.

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dolphi86 [110]
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harina [27]

Answer:

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Here, we can see a triangle that has the hypotenuse as the diameter of the circumscribed circle. We can infer that the triangle is a right triangle.

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Answer:

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