Solve the first for y
y=13x-90 and the second is y=x^2-x-42
When there is/are solutions y=y so we can say:
x^2-x-42=13x-90 subtract 13x from both sides
x^2-14x-42=-90 add 90 to both sides
x^2-14x+48=0 expand so that it is easy to factor...
x^2-6x-8x+48=0 now factor 1st and 2nd pair of terms
x(x-6)-8(x-6)=0
(x-8)(x-6)=0
So there are two solutions, when x=6 and 8.
Using either original equation we can find the corresponding values for y. I'll use y=13x-90 because it is easier...
y(6)=-12, y(8)=14 so the two solutions are the points:
(6,-12) and (8,14)
First, let's simplify these fractions so we can properly compare!
1/5 = 1/5
5/5= 1
5/1 = 5
Now, looking at our numbers we can conclude that 1/5, 5/5 and 5/1 are NOT equivalent to each other.
Hope this helps!
Answer:
c
Step-by-step explanation:
3 times c which is the number of cousins + 8 which she got from her mom
=
Answer:
When graphing a linear inequality on a number line, use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to".
Answer:
fourth degree.
trinomial
Step-by-step explanation:
