Is it 4 times x or 4 to the power of x, if the first one then, 8x-24x. if the second then 8^-6x
Answer:
Option A (2197 cm³)
Step-by-step explanation:
For a cube with length of each side "a" , it's
- Total Surface Area = 6a²
- Volume = a³
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According to the question ,
Total Surface Area = 1014 cm²
Let the length of each side of cube be 'a'.
Using the formula ,



But length can't be negative . So , length of each side = 13 cm
∴ Volume of cube = 13³ = 2197 cm³
Im pretty sure the number of books is your x and the cost is your y
(i) The mean is

The variance is

Compute the second moment
:

Then the variance is

(ii) For a random variable
, where
are constants, we have

and

Then for
, we have

