Answer:
a=-30
Step-by-step explanation:
Answer:
Z: n = 1 P: n =80
Step-by-step explanation:
cross multiple what you can and divide it by the last number left to find n
Answer:

Step-by-step explanation:
The formula of an area of a elipse:

We have:

Substitute:

Answer:
5 10ths
Step-by-step explanation:
C
A line with undefined slope is a vertical line parallel to the y-axis, passing through all points with the same x-coordinate.
For this reason it's equation is x = c
where c is the value of the x-coordinate the line passes through
For (- 3, 5 ) the x-coordinate is - 3, hence
x = - 3 → is the equation of the line