Which number line correctly shows 1. 5 + 2. 5? A number line going from 0 to 6. 5 in increments of 0. 5. An arrow goes from 0 to 1. 5 and from 1. 5 to 4. A number line going from 0 to 6. 5 in increments of 0. 5. An arrow goes from 0 to 1. 5 and from 1. 5 to 3. A number line going from 0 to 6. 5 in increments of 0. 5. An arrow goes from 0 to 2. 5 and from 2. 5 to 5. A number line going from 0 to 6. 5 in increments of 0. 5. An arrow goes from 1. 5 to 3 and from 3 to 5. 5.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

just sum

10 + 10 = 20

2x + 8

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)