2 years ago

Which of the following are solutions to the quadratic equation? Check all that

1 answer:

Ket [755]2 years ago

3 0

Answer:

x=-2

Step-by-step explanation:

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Andrej [43]

Recall the double angle identity:

$\sin2\theta=2\sin\theta\cos\theta$

With $\theta$ measuring between 0º and 90º, we know $\cos\theta>0$ . So from the Pythagorean identity, we get

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Then

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3 years ago

vekshin1

Answer:

d=8km

Step-by-step explanation:

explanation is in the image above

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