Answer:
The parametric equations represents an ellipse by the rectangular equation 
.
Step-by-step explanation:
We proceed to use the following trigonometric identity to derive an expression in rectangular form:
(1)
Where:
and 
Then, we expand the expression as follows:
(2)
The parametric equations represents an ellipse by the rectangular equation .
A Comment "If i know the measures of angles C and B, I can find the measures of A and D" is TRUE
Explanation :
If we know angles C and B we can find angles A and D as,
As from figure we know
A+B = 180°
∴ A = 180° - B ... we know B so we get A
Also,
B+C+D = 180° ... as BCD is a triangle
∴ D = 180° - (B+C) ... we know B and C so we get D
Answer:
hgshajshvaviahavhwuwhvwhhwzhzhhzvhappy
You have to use the quadratic formula to solve this. when you do, you get x values of 1.079 and -.5791. You did not provide choices but that's what it comes out to.
