2 years ago

The answer choices are

Mathematics

1 answer:

Yuliya22 [10]2 years ago

7 0

I believe it’s C because none of the others are even close and the 3 and 7 add up correctly

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Use the quadratic formula to solve 9x2 + 6x – 17 = 0. A. B. x = –1, –5 C. D.

Taya2010 [7]

Answer:

$x_{1} = -\frac{1}{3} +\sqrt{2} ; x_{2} = -\frac{1}{3}-\sqrt{2}$

Step-by-step explanation:

9x² + 6x – 17 = 0

Apply the quadratic formula

$x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

a = 9; b = 6; y = -17

$x = \frac{-6\pm\sqrt{6^2 - 4\times 9 \times(-17)}}{2\times 9}$

$x = \frac{-6\pm\sqrt{36+36\times17}}{18}$

$x = \frac{-6\pm\sqrt{36(1+17)}}{18}$

$x = \frac{-6\pm 6 \sqrt{18}}{18}$

$x = \frac{-1\pm \sqrt{9\times2}}{3}$

$x = \frac{-1\pm 3\sqrt{2}}{3}$

$x_{1} = -\frac{1}{3} +\sqrt{2} ; x_{2} = -\frac{1}{3}-\sqrt{2}$

The graph below shows the roots at x₁ =1.081 and x₂ = -1.748.

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2 years ago

I need answer Immediately!!!!!!!!!

dybincka [34]

Uhh I think something like y=x+5

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2 years ago

Emanuel surveyed a random sample of 50 subscribers to Auto Wheel magazine about the number of cars that they own. Of the subscri

blondinia [14]

102 would be the most reasonable estimate.

The experimental probability of owning fewer than 2 vehicles, based on the survey, is 15/50. We multiply this probability by the number of subscribers to the magazine:

15/50(340) = 102

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Hi there! The answer to this problem is TRUE.

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Fynjy0 [20]

20 that is the answer

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2 years ago