which of the following is not a perfect cube? 1: 2197 2: 512 3: 2916 4: 343 Which of the following numbers is a perfect cube? * 1: 1525 2: 1728 3: 1458 4: 3993

no 4 is not perfect cube and no 2 is perfect cube

3. 2916

2. 1728

Step-by-step explanation:

1: 2197 = 13³

2: 512 = 8³

3: 2916 = 2² × 3² × 61

4: 343= 7³

1: 1525 = 5² × 61

2: 1728 = 12³

3: 1458 = 2 × 9³

4: 3993= 3 × 11³

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.