Answer:
b
Step-by-step explanation:
7 times 7 = 49 minus 3 = 46
Answer:
-13=5+x, rearrange the terms.
-x=5+13, add.
-x=18, invert the sign.
x=-18
12^2 pigreco calcoli e lo trovi
Answer:

Step-by-step explanation:
In this problem we have a horizontal ellipse, because the major axis is the x-axis
The equation of a horizontal ellipse is equal to

where
(h,k) is the center of the ellipse
a and b are the respective vertices distances from center
we have
vertices at (7, 0) and (-7, 0)
co-vertices at (0, 1) and (0, -1)
so
The center is the origin (0.0) (The center is the midpoint of the vertices)
a=7
b=1
substitute

