Question

find the cube of 1.3,-9,2/3​

Answer 1

2.197 is a cube of 1.3

-729 is a cube of -9

8/27 is a cube of 2/3

Answer 2

Answer:

cube of 1.3

(1.3)^3= 1.3* 1.3* 1.3 = 13/10* 13/10* 13/10 = 2197/1000= 2.197

cube of -9

(-9)^3 = - 9* -9* -9=  81* -9 =  -729

cube of 2/3

(2/3)^3 = 2/3* 2/3* 2/3= 8/27 = 0.2962