F(x)=-4x-2
F(x)=-4(-1)-2
F(x)=4-2
F(x)=2
F(x)=-4x-2
F(x)=-4(0)-2
F(x)=0-2
F(x)=-2
F(x)=-4x-2
F(x)=-4(1/2)-2
F(x)=-8-2
F(x)=-10
I hope this helps!!
Step-by-step explanation:
so let's say that the width is x then the length is x+15
and the area of a square is length times width
x(x+15)=100
x^2+15x-100=0
(x+20)(x-5)=0
x=5 or x=-20 but a side length can't be negative so x would equal 5
Length=x+15 with 5 as x
Length=20
Width=5
Hope that helps :)
The denominator. Say for instance, you have 4/12 and 1/6. They are equivalent.
Answer:
(x, y) = (4, -2)
Step-by-step explanation:
The coefficient of y in the second equation is double the coefficient of y in the first. We can subtract twice the first equation from the second to eliminate y.
(3x +4) -2(x +2y) = (4) -2(0)
x = 4 . . . . . . . . . simplify
Substituting into the first equation, we have ...
4 +2y = 0
2 +y = 0 . . . . . . divide by 2
y = -2 . . . . . . . . subtract 2
The solution is (x, y) = (4, -2).
