Answer:
Step-by-step explanation:
The slope of line AB is

The slope of line CD is

Since the slopes multiply to
, these lines are perpendicular to one another.
Actually, bot are equal. Because 3 feet make a yard and there 2 yard so 6 feet made 2 yards.
25 because 5 (the number of sticks) times 5 (the number of houses) equals 25
<span>So we want to know in which point do light rays that are incident on a lens and parallel to the principal axis converge. Rays parallel to the principal axis and are incident on a lens converge in the focal point of the lens. So the correct answer is focal point.</span>
90 ? Because it's rounding to the nearest tenth so .... it must be 90