Allen found the volume of a number cube with an edge ledge of 1 1/2cm. He says the total volume is less than 1 cubic cm. What can you tell Allen about his work?

  He needs to recompute.

Step-by-step explanation:

The product of three numbers all greater than 1 will not be less than 1. It will be greater than any of them.

  1.5³ = 3.375 = 3 3/8 . . . . cubic cm

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5