PLEASE HELP An architectural engineer is designing a parabolic dome that will be 200 feet in diameter with a maximum height of 50 feet. Find the equation of the cross–sectional parabola of the dome.
A. (-x^2)/(400) - 5,000/400
B. (-x^2)/(200) - 10,000/200
C. (-x^2)/(400) - 5,000/50
D. (-x^2)/(400) - 5,000/2,000

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Step-by-step explanation:

what graph

step-by-step explanation:

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