The distance between two cities is 400 miles. The
function
400
Which best compares the mathematical domain and
range with the reasonable domain and range?
represents the average speed a person must travel over
x hours to cover the distance.
mathematical: {x € R} {y E R}
reasonable: x > 0, y = 0
mathematical: {x ER|x 0} {Y ERTY # 0}
reasonable: x >0, y > 0
mathematical: {x € R} {y E R}
reasonable: x 20, y = 0
mathematical: {x ER | x0} {Y E R y 0}
reasonable: x 20, y 2 0

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

answer: what statements

step-by-step explanation if you write the statements down then i could you.

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