A parabola can be drawn given a focus of(7,−8)(7,−8) and a directrix ofy=0y=0. Write the equation of the parabola in any form.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

i’m here for points.

i think the length is 12 and the width is 17

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true