Step-by-step explanation:
6а – 2а = -48
4a=-48
a=-12
Answer:
On the x-axis, plot to the left at -4.
From the point -4, go up 1 and to the LEFT 2.
When you draw yours line, it is a dashed line so leave a little space in it.
Then you should shade above the line.
Agree....There are 12 boys and every 2 = 6 groups 6x2
There are 24 girls and every 4 to the 2 =6 groups 6x4
Answer:
0.5
Step-by-step explanation:
Ok, so it's asking for what (1/(x-1) - 2/(x^2-1)) approaches as x approaches 1. Before we deal with the limit, let's simplify the inside.
We want to combine the two fractions into one fraction. Therefore, we need a common denominator.
1/(x-1) is equal to (x+1)/((x+1)(x-1) is equal to (x+1)/(x^2-1).
the inside expression is therefore (x+1)/(x^2-1) - 2/(x^2-1)
which simplifies to (x-1)/(x^2-1).
and that simplifies further to 1/(x+1).
Now this is a continuous function when x = 1, so to find the limit as x approaches 1 of this function, we can by definition just plug 1 in.
limx->1 (1/(x+1)) = 1/2.
The reason why we didn't just plug 1 in at the beginning is because the function wasn't continuous when x was 1.
