The answer is B
The formula of the function is
f(X) = - (X+1)^2
Assume that the angle is at the rear of the truck bed, and that the length of the truck bed is 12'. Then:
opp side
tan theta = --------------
adj side
becomes:
8 ft
tan theta = --------- = 2/3 = approx. 0.667
12 ft
Then tan theta = 2/3, and arctan (2/3) = 0.589 radian, or 33.7 degrees.
This is less than 45 deg, so the answer is NO, the clay will not pour out easily.
<span>ًWe should use the compass at one endpoint of line segment.
</span><span>Adjusting the compass to slightly longer than half the line length
</span><span>Drawing arcs above and below the segment line.
</span>Keeping the same compass width, draw arcs from other endpoint connecting the arcs cross, and draw the line segment.The inter section between the two lines represents the mid point of the line segment.
Therefore the correct answer is option C
<span>C Use the compass to copy the line segment on two arcs at equal distance from the endpoints if the segment</span>