Answer:

Step-by-step explanation:
we know that
The volume of a cube is equal to

where
s is the side length of the cube
we have

substitute in the formula


Remember the power rule
----> multiply the exponents
so

Z score = (x -mean) / standard deviation.
For this problem X = 50 cm.
Z-score = (50 - 49.2) / 1.8
Z score = 0.8 / 1.8
Z score = 0.44
Look up 0.44 on a z-score table.
0.44 = 0.6700
0.67 x 100 = 67% will be 50 cm or longer.
Answer:
.999...
Step-by-step explanation:
99>64 just put a decimal
Answer:
No
Step-by-step explanation:
No it is not a perfect square because you can not factor it.