Answer:
For this case, we have the following equation (according to the comments):
First, we factor the quadratic expression in the denominator:
Then, we multiply both sides of the equation by (a-2) (a + 2):
Later, canceling similar terms we have:
We do distributive property on the left side of the equation:
By grouping variables and constant terms we have:
Rewriting we have:
Finally, by clearing "a" we have:
Note: the value of a is a extraneous solution because it makes the denominator of the original equation equal to zero.
Answer:
the student correct, but the value of a= -2 is an extraneous solution
Answer:
1/2
Step-by-step explanation:
There are 16 people in total.
Cashiers and managers together total 8 people.
8/16 people are cashiers and managers, which equates to 1/2.
Answer:
B
Step-by-step explanation:
The slope of the line given is -3/4
That means that the coefficient of x divided by the coefficient of y has to be -4/3, in the perpendicular line.
The only line that demonstrates that is B
