Awhispering gallery is being designed with an elliptical ceiling in a hall that is 130 feet long. if the foci are placed 63 feet from the center, how high will the ceiling be at the center of the room?
a
18 feet

b
15 feet

c
17 feet

d
16 feet

What is the rotational symmetry of a wheel

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55