The function h(t)=-4.87t^2+18.75 is used to model the hieght of an object projected in the air, where h(t) is the height in meters and t is the time in seconds. What are the domain and range of the funtion h(t)? Round values to the bearest hundreth.

a) 7x=7

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb

the one below it is a function