Which is the standard form of the equation of the parabola that has a vertex of (-4,-3) and a directrix of x = 2?
1 answer:
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350mi/5.25h = 66.66 mph
Answer:
<h3>-cos10°</h3>Step-by-step explanation:
cos is positive at first and fourth quadrant
so, cos (-x) = cos (x)
also, cos(180-x) = -cos x
cos (180+x) = -cos x
cos (-170°) = cos (170°)
cos(170°) = cos (180° - 10°)
= - cos 10°
