Answer:
-0.9231
Step-by-step explanation:
Given cos theta = 0.3846 within the range 3π/2<theta<2π
Costheta = 0.3846
Theta = arccos(0.3846)
Theta = 67.38°
Since 67.38° didn't fall within the range of theta, we will locate our theta using the quadrant.
Since cos is positive in the 4th quadrant,
Theta = 360-67.38°
Theta = 292.62°
Sin(theta) = sin(292.62°)
= -0.9231
<span>If the coordinates of a point are both negative, then the point is in Quadrant III.
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1> distributed
10x - 40 = 20
2 > move - 40 -- + 40
10x = 20 + 40
10x = 60
3 > divide 10
x = 6
the answer is 10! because 7*10= 70