Answer:
Part a: The coefficient of
is 
Part b: The number of terms are 23751.
Step-by-step explanation:
part a
From the given equation the

So the coefficient of any term
is given as

Similarly for the generic equation of coefficient of the term
in the equation of form
is given as

So now the coefficient of
is given as

The coefficient of
is 
Part b:
The number of terms is given as 
where m is the number of variables which are 5 here
n is the power which is 25 so the number of variables is given as

So the number of terms are 23751.
Answer:
0.278
Step-by-step explanation:
Given that Nuri joins a game for a car. The rule is that Nuri pick one key from box either A, B, or C. A box has two keys but only one can be used. B box has three keys but only one can be used. C box has two keys but none of them can be used.
Each box is equally likely to be selected.
In other words

If A is selected then probability of winning is using the correct key out of two keys i.e. 0.5
If B is selected then probability of winning is using the correct key out of three keys i.e. 0.333
If c is selected then probability of winning is using the correct key out of two keys i.e. 0.00
So the probability that Nuri can win the car
= 
Ok I’m not sure this is right but I did 150x 3% and got 4.5!
For the answer to the question above asking to f<span>ind the coordinates of Z without using any new variables.
</span>
Vector WZ equals vector VP, which is (p, -q)
So Z is (-p - r + p, q - q) which is (-r, 0)
I hope my answer helped you.