Answer:
Step-by-step explanation:
Cosine is the ratio of the side adjacent to the angle and the right triangle hypotenuse.
B = =
The equation for a parabola with directrix y = –p and focus (0, p)
The distance between vertex and directrix is P
Also the distance between vertex and focus is also P
Focus (0,p) so focus lies on y axis
Directrix line is paralled to focus point
So Directex crosses the x axis .
Hence line of symmetry lies is the y-axis.
The graph is attached below.
Answer:
C. 35/4
Step-by-step explanation:
Since the measure of angle is
The measure of its reference angle =
=
Now we have to compute the value of
The value of () lies in the fourth quadrant. In fourth quadrant, the value of tan is always negative.
So,
= -1.
Answer:
Answer is tan(20 degrees) so, D.
Step-by-step explanation: