Over the summer, Jackie played video games 3 hours per day. When school began in the fall, she was only allowed to play video ga
2 answers:
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Answer:
x ≈ 38.7°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx = =
, then
x = (
) ≈ 38.7° ( to 1 dec. place )
The slope of the tangent line to at
is given by the derivative of
at that point:
Factorize the numerator:
We have approaching -1; in particular, this means
, so that
Then
and the tangent line's equation is
check the picture below.
recall that a flat-line is always 180°, and the sum of all interior angles in a triangle is 180°.
