Which numbers are perfect cubes? check all that apply. 3 64 81 125 999 3,000

64 and 125 are perfect cubes

Step-by-step explanation:

Let us see all numbers one by one

3: It cannot be written as a product of three same numbers so it is not a perfect cube.

64: It can be written as:

4*4*4 = 4^3

So 64 is a perfect cube

81: It cannot be written as a product of three same numbers so it is not a perfect cube.

125: It can be written as:

5*5*5 = 5^3

So 125 is a perfect cube

999: It cannot be written as a product of three same numbers so it is not a perfect cube.

3000: It cannot be written as a product of three same numbers so it is not a perfect cube ..

step-by-step explanation:

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step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.