Answer:

Step-by-step explanation:
An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.
The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:
b = 357 km + 959 km = 1316 km
a = 710 km + 959 km = 1669 km
Therefore the equation of the ellipse is:

Step-by-step explanation:
we know ,
area of circle =πr^2
hence we get from the figure that the diameter of circle is 19 cm and we can find radius
r=d/2
r=18/2=9cm
area of semicircle =πr^2/2
area of Semi circle equals to =22*(9)^2/7/2
=127.2857143
Answer:
36 mph.
Step-by-step explanation:
Let x be the distance to the town hall.
Trip there:
speed (s) = distance / time
s = x / 1.5 so x = 1-5s
Trip back:
s - 12 = x / 2 so x = 2s - 24
AS they are both = to x:
1.5s = 2s - 24
0.5s = 24
s = 48.
Average speed on the way back = 48-12 = 36 mph.
12.6 lb = 100.8 oz.Because you need to show your work, on the side put the expression 12.6 * 8 = 100.8 but replace the * with the times sign.