Answer:
There are only 6 numbers that fit that description. (4,12,24,32,44,52)
Answer:
choosing 1 blue marble, choosing one white marble not replacing it and choosing a blue and lastly choosing one white marble.
Step-by-step explanation:
From cosine law
c^2 = a^2 + b^2 -2abcos(C)
cos(C) = (a^2 + b^2 - c^2)/2ab
this formula will solve your problem
In order to rationalize the denominator of each expression, we need to multiply the expression by the same radical in the denominator, this way we can remove the radical from the denominator.
9)

10)

11)

12)
The first two terms are given,

and

.
The third term, according to the formula, is

and the next two terms are
