Answer:
12
Step-by-step explanation:
hope it helps you on what ur doing
They are not equivalent because 27-(63-8) is equal to -28 and (72-63)-8 is equal to 1.<span />
Yes because 4 to 7 is the same as 7 x 4 which equals 28. 7 to 4 is the same as 7 x 4 which also equals 28.
Answer:
m-7
Step-by-step explanation:
The volume of a box with dimensions x by x by x is

.
So if we are given the volume V of a cube-shaped box, the side length of thit is
![\sqrt[3]{V}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7BV%7D%20)
.
So we calculate the cubic roots of the volumes we have, and we add their heights.
To calculate the cubic root of 729, we can factorize it, and group the perfect cubes together, as follows:


, which we recognize as

so

similarly 1,331 can be found to be

.
Thus we have 2 boxes with side length equal to 11 m and one with side length equal to 9 m.
Answer: h= 11+11+9 = 31 (meters)