The answer is no, because the first two equations are right but the third equation equals -16 instead of -15. So the answer is no (2,-2,4) is not the solution to all the system of equations.
Answer:
.
Step-by-step explanation:
We want to convert the function into the form that let's us easily find the x-intercept, and it would be for the form 
because then we can find the x-intercept in the following manner:
We factor our function 
and get
Now this form let's us easily find the x-intercepts:
and so we pick the second choice: f(x)=(2x+1)(2x-1).
Answer:
18 women
Step-by-step explanation:
What we know:
5/8 of the orchestra are male player, and 3/8 are female.
5/8 is a 1/4 more than 3/8.
If 12 is 1/4 of x, then x is 48.
Multiply 48 by 3/8 to get your answer.
48*3/8 = 144/8 = 18 women
