Answer:
0.7755
Step-by-step explanation:
If 120 CDs are defective, the number of non-defective CDs in the batch is:
In order for the batch to be accepted, all of the 4 CDs in the sample must not be defective, the probability of that happening is:
The probability that the entire batch will be accepted is 0.7755.
Answer:
3150 feet for both
Step-by-step explanation:
correct?
Answer: (6x-3y)3 or maybe not possible to do
Step-by-step explanation
multiply 3x2 and get 6. Multiply 3x3 and get 9.
Here you have two unknowns, so you would need two equations (system of equations). By using w to represent walnuts and c to represent chocolate chips your equations would be 5w + 2c = 10 and 3w + 8c = 23, the coefficients being the amount of pounds of walnuts and chocolate chips and the right hand side of the equations being the total price. From there you can either solve for one variable in terms of the other and plug in to the other equation, or you could subtract one equation from the other ( I personally prefer solving for one variable in terms of the other and then plugging in to the other equation).
SA , 4 and pi are all constants so you can ignore them.
* edit: had r and h reversed..
1 = (3h)(r)^2
1/3 = h(r)^2
1/3 = (r)^2
√(1/3) = r
h and r are inversely related so tripling h will reduce r by 1/√(3)
