Answer:
c) 2
Step-by-step explanation:
a prime number is a number which is only completely divisible by 1 and itself
Answer:

Step-by-step explanation:
Because we are told equivalent expressions for y and z we can plug those in to 2(y+z).

Then simplify by combining like terms of the expressions. Values ending in x^2 can be combined with each other.

Now we can distribute the 2 by multiplying each value in the parentheses by 2.

Answer:
Step-by-step explanation:
Total number of balls = 3 + 2 = 5
1)
a)

b)

c)
Probability of at least one black( means BB or BW or WB)

d)
Probability of at most one black ( means WW or WB or BW)

2)
a) Probability both black without replacement

b) Probability of one black and one white

c) Probability of at least one black ( BB or BW or WB)

d) Probability of at most one black ( BW or WW or WB)

Answer:
here you go mate. sorry I just calculated straight away since you needed it urgently.
but if you use the (x+10, y-6) you'll arrive at similar answers as mine