I believe the correct answer is B
Answer:
27
Step-by-step explanation:
I'm sure there's an easier way of solving it than the way I did, but I'm not sure what it could be. Never dealt with a problem like this before.
Anyway, I just plugged in and tested. Chose random values for a, b, c, and d, which follow the rule 0 < a < b < c < d:
a = 1
b = 2
c = 3
d = 4


Simplify into standard form:



Use the quadratic formula to solve:

For functions in the form of

. So in this case:
a = 1
b = -4
c = 2
Plug them in:

Solve for 'x':




So the answer would be A.
Answer:



Step-by-step explanation:
Given

See comment for complete question
Required
The number of decimal places
To do this, we simply calculate the number of digits after the decimal points


The product is the sum of the digits above 2 + 1 = 3
Hence:
