Which of the following statements is true?
a.
the angle of elevation is always greater than the angle of depression.
b.
the angle of elevation is always the line of sight above the horizontal.
c.
the angle of elevation is always less than the angle of depression.
d.
the angle of depression is always the line of sight above the horizontal.

The answer is that the angle of elevation is always the line of sight above the horizontal.

This is because the angle of elevation of an object as seen by an observer is the angle between the horizontal and the line of sight which is from the object to the observer's eye.

And we can see the other options are all false as it is not necessary for the angle of elevation to be always greater than the angle of depression.

Similarly the rest are also false.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

answer for #1 is c

answer for #2 is d

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