Step-by-step explanation:
Let edge length of cube be x units.

Hence, length of edge of cube = 0.75 units
Answer:
Following are the responses to the given points:
Step-by-step explanation:
Given:

Using formula:
For point a:

For point b:

For point c:

For point d:
Hence, the correct choice is "i".
For point e:

Answer:
Brien is incorrect because he skipped step 2
Step-by-step explanation:
Answer:
192
Step-by-step explanation:
To find how many phones are expected to be defective, we need to represent the values in a fraction.

x = number of defective phones
Now we can solve this using algebra.
To get the value of x we need to multiply both sides by 8000 to leave x alone.



So around 192 cell phones are expected to be defective out of 8000 phones.