if the -8-13 are both in the denominator
-24/(-8-13)
-24/-21
divide both sides by -3
[-24/-3] / [-21/-3]
8 / 7
if the -13 comes after the division
(-24/-8) -13
3 - 13
-10
ANSWER
The solution is where the two graphs intersect, which is
EXPLANATION
The given system of equations are
and
We need to graph the two equations.
Let us graph
first.
We need at least two points.
You can choose any appropriate value for x and solve for y. Choosing zero makes our working easier. So let us plot the intercepts.
When
So this gives us the ordered pair,
When
we get,
This also gives the ordered pair
We plot these two points and draw a straight line through them to obtain the blue graph in the attachment.
For the second line
We again find the intercepts and plot them.
When
This gives the ordered pair
Also, when
then we have,
Then we again have the ordered pair,
We plot these two points on the same graph sheet to obtain the red graph above.
The intersection of the two lines is
You will get good grades so don't worry much.
The greatest common factor is 3x². The rest doesn't factor.
21x³y² -3x²y +75x⁴ = 3x²(7xy² -y +25x²)
Decimals from 7.0 to 8.4 with an interval of 0.2 between each pair of decimals
We start with 7.0 and keep adding 0.2 till we get 8.4
7.0 + 0.2 = 7.2
7.2 + 0.2 = 7.4
7.4 + 0.2 = 7.6
7.6 + 0.2 = 7.8
7.8 + 0.2 = 8.0
8.0 + 0.2 = 8.2
8.2 + 0.2 = 8.4
So, the decimals from 7.0 to 8.4 with an interval of 0.2 are
7.2, 7.4, 7.6, 7.8, 8.0, 8.2