Hey! This may not be the answer you are looking for obviously. But go on KhanAcademy, they helped me with this when I was in Algebra!
First you express it as a fraction so that would be 2475/1000 which can be simplified to 99/40
Answer:
It's a perfect cube, but not a perfect square.
Step-by-step explanation:
2^3 = 8, meaning 8 is a perfect cube. But since 2^2 = 4 and 3^2 = 9, and 8 is in between, 8 is not a perfect square.
I hope this helped.
[((2 / 75.5) - 3) * 2]3 (make 3 an exponent.)
We break all the bracket out :
-0.75 + 2/5 + 0.4 - 3/4
2/5 = 0.4
-3/4 = -0.75
So, we have : -0.75 + 0.4 + 0.4 - 0.75
= (-0.75 - 0.75) + (0.4 + 0.4) = -1.5 + 0.8 = -0.7
