If 4.2km is 42cm on a map, what was the scale of the map?
2 answers:
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In 22, you're looking for the vertical height of the triangle. You're given the angle opposite the side you want to find (which I'll call 
) and the length of the hypotenuse. This sets you up with the relation
In 23, you're given a similar situation, except now you're looking for the angle (I'll call it
) in the triangle opposite the side denoting the height of the airplane. So this time,
In 23, you're given a similar situation, except now you're looking for the angle (I'll call it
The domain is equal all real numbers
The degrees of the polynomial is odd (3x^7, 7 is odd), therefore the range is equal all real numbers
The degrees of the polynomial is odd (3x^7, 7 is odd), therefore the range is equal all real numbers
we have
The solution is the shaded area above the dotted line
therefore
The answer in the attached figure
