Answer:
The solution is x=4.75 and y = -22
Step-by-step explanation:
To find the solution to the system of equations, we will follow the steps below:
3.2x + 0.5y = 4.2 --------------------------------------------------------------------------(1)
-1.6x -0.5y = 3.4 ----------------------------------------------------------------------------(2)
add equation (1) and equation (2)
1.6x =7.6
Divide both-side of the equation by 1.6 to get the value of x
1.6x /1.6 =7.6/1.6
x =4.75
substitute x = 4.75 into equation (1) and solve for y
3.2(4.75) + 0.5y = 4.2
15.2 + 0.5y = 4.2
subtract 15.2 from both-side of the equation
15.2 - 15.2 + 0.5y = 4.2-15.2
0.5y = -11
Divide both-side of the equation by 0.5
0.5y/0.5 = -11/0.5
y = -22
The solution is x=4.75 and y = -22
<h3>
Answer: Choice D</h3>
- Domain: all real numbers
- Range:
===========================================
Explanation:
The domain is the set of allowed x inputs. We can plug in any x value we want as the graph stretches on forever to the left and to the right. There aren't any division by zero errors or any issues like that to worry about, so that's why we don't kick out any x values from the domain.
The domain being all real numbers translates to the interval notation 
which is basically saying 
-----------------------------------
The range is the set of y outputs possible. The graph shows that y = 1 is the smallest y output, so y = 1 or y can be greater than this.
In short, is the range which converts to the interval notation 
which is the same as saying 
-----------------------------------
Extra info:
The equation of this absolute value function is y = |x|+1
Answer:
r=21
Step-by-step explanation:
r-15=6
r=6+15
r=21
Answer:
Step-by-step explanation:
You are given four responses to a question and are to identify which of those four are correct.
The first one is FALSE, because the divisor -2 results in a non-zero remainder.
The second one is also FALSE. The y-intercept is (0, -4).
The third one is TRUE. Division by -2 results in a remainder of -6, which is the y-value of the function at -2.
The fourth is FALSE.
Negative six times x plus five times y equals nine
