Will give brainliest to person who answers! a roller coaster car follows a parabolic path over the first hill on its track. the height of the car, in feet, t seconds after the ride starts can be shown by the function given below. h ( t ) = -3t^2 + 15t + 18 which of the statements is true? * the domain of the function is [0, 6], and it represents the car's time to reach maximum height. * the domain of the function is [-1, 6], and it represents the car's time to reach maximum height. * the domain of the function is [0, 6], and it represents the car's time to complete the hill. * the domain of the function is [-1, 6], and it represents the car's time to complete the hill.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

what graph

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -