We have to know the angle that is not labelled. (lets call it y)
9x + y= 180
and the sum of the angles of a triangle is 180
5x + (9+x) + y=180
2 simultaneous equations
Answer:
1/48
Step-by-step explanation:
1/4 of the cookies were Kim's
1/3 of that ( 1/3 x 1/4) were chocolate chips which is 1/12 of the total
1/4 of that ( 1/12 x 1/4) had nuts . which is 1/48 of the total
The fraction is 1/48
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-Chetan K
These lines are perpendicular because y = -6 is a horizontal line with a slope of 0 and x = 6 is a vertical line with an undefined slope
Use the following identities:

Also because the angle is in quadrant 3, sin must be negative.
Therefore

Subbing in tan = 0.958
USING PYTHAGORAS THEORAM,
x²+3²= 5²
x²+9= 25
x²= 25-9 = 16
x= √16
x= 4
OPTION D