Well I don't know !
Let's get together and solve that thing for 'y' .
2x + 3y = 1,470
Subtract 2x from each side: 3y = -2 x + 1,470
Divide each side by 3 : y = -2/3 x + 490
There you are.
If you graph that equation, the slope is -2/3
and the y-intercept is 490 .
I believe it is the first one
Let length=x, witdth=x-9
Perimeter=130
2 length+2 width=130
2x+2(x-9)=130
2x+2x-18=130
4x=130+18
4x=148
X=37 cm
Length=37cm; width=37-9=28cm
Hope this can help.
Answer:
they got -21 when they were supposted to get +21
and they also got +6x when they were supposted to get -6x
Step-by-step explanation:
that's because -3 and 2x are multiplied together and when you are multiplying negative and positive number you need to get negative result.
when you are multiplying negative with negative number, you will get positive number.
Answer: f(x)= -x
Step-by-step explanation:
-x is a reflection of x and I used my graphing calculator and it checks out
