(f+g)(x) is 3x^2 + 3x/2 - 9
(f+g)(x)=f(x)+g(x)=x/2-3+3x^2+x-6= 3x^2 + 3x/2- 9
Answer:
Hi There the correct answer is {x,y} = {-1,-10}
System of Linear Equations entered :
[1] 3x - y = 7
[2] 4x - 2y = 16
Graphic Representation of the Equations :
y + 3x = 7 -2y + 4x = 16
Solve by Substitution :
// Solve equation [1] for the variable y
[1] y = 3x - 7
// Plug this in for variable y in equation [2]
[2] 4x - 2•(3x-7) = 16
[2] -2x = 2
// Solve equation [2] for the variable x
[2] 2x = - 2
[2] x = - 1
// By now we know this much :
x = -1
y = 3x-7
// Use the x value to solve for y
y = 3(-1)-7 = -10
Solution :
{x,y} = {-1,-10}
Hope it helps!
<span>4x − 2(5x − 1)
= 4x - 10x + 2
= -6x + 2
= 2 - 6x
answer is TRUE
</span><span>The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x</span>
11 QUIZ
Back Next
Question 1
Use the graph below to determine whether each system is consistent or inconsistent and if it is independent or dependent.
x + 3y=3
|2x - y=-3
y=3
| 4x - 2y = -6
x
+ y=-
x+y=3
x+y=-3
a consistent and dependent
b. consistent and independent
e inconsistent
