Solve each equation for the indicated variable. u = -3a - 3 , for a
1 answer:
Answer:
Step-by-step explanation:
Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, add 3 to both sides of the equation:
u = -3a - 3
u (+3) = -3a - 3 (+3)
u + 3 = -3a
Next, divide -3 from both sides of the equation:
(u + 3)/-3 = (-3a)/-3
a = (u + 3)/-3
is your answer.
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Answer:
Cross probability
Step-by-step explanation:
The type of probabilities remains to be determined. That is the question itself. The same problem is found in the book "Understanding basic statistics 7th edition of Brase".
I will assume that the three probabilities to find are:
a) p (woman asked for a raise)
b) p (received raise | asked for one)
c) p (received raise and asked for one)
So,
a) p(woman asked for a raise)
It is given in the statement, so it is simple statistics:
b) p(received raise | asked for one)
It is also found in the statement, however, now the formula would be given by:
<em>p(received raise | asked for one) = p(received raise and asked for one) / p(asked for one)</em>
c) p(received raise and asked for one)
For this case the formula is given differently and it is necessary to re-adjust formula B, as follows:
<em>p(received raise and asked for one) = p(received raise | asked for one) * p(asked for one)</em>
So,
p(received raise and asked for one) = 11.5%