Answer:
Final answer is
.
Step-by-step explanation:
Given that P(A)= .50, P(B)=.80 , and P(A and B)=.20.
Now we need to find about what is the value of P(B/A).
So apply the formula of compound probability :
P(A and B) = P(A)*P(B/A)
Plug the given values into above formula
0.20 = 0.50*P(B/A)
0.50*P(B/A) = 0.20


Hence final answer is
.
She will need to sell 18 necklaces a month to reach 1650
Answer:
2*3*a*a*a*b*b*b
Step-by-step explanation:
Factor by breaking the term into the components which multiply to make it.

42 factors into 6*7 and 6 factors into 2*3. So 42 = 2*3*7.
i believe the answer is the last one
Answer:
Step-by-step explanation:
hello :
(x + 5) ( x -3 )= x²-3x+5x-15
(x + 5) ( x -3 )= x²+2x-15