(4x + 134) + (3x + 32) = 180
7x + 166 = 180
7x = 14
x = 2
(3x + 22) + (3x + 128) = 180
6x + 150 = 180
6x = 30
x = 5
The answer is D
A
This is one of those questions that is hard to explain, because I don't know what you know. I'll start with the most obvious reason I know. At x = -1 the top and bottom of the function is 0/0. zero/zero can give indeterminate results and you must look for other ways of explaining what is going on. Here's another thought which is less reliable.
The fraction factors.
(x + 1)*(x - 1)
============
(x + 1)
The two common factors cancel and you are left with f(x) = x - 1
If you have a graphing calculation you can put this in as y = x - 1 and you see that it is a straight line.
Question B is much nicer
when you put x = 1 into the fraction, you get 0 /2 which gives you 0. That's much easier to handle because the answer is 0.
you are still graphing y = x - 1, but this time the graph is much more well behaved.
Answer:
it would be 10.6 ounces.
Step-by-step explanation:
Answer:
The lines are parallel to each other.
To figure this out you need to use the formula: m = y2 - y1 / x2 - x1
m represents the slope of the line.
So for the first line:
m = 4 - 2 ÷ -5 - (-9)
m = 2 / 4
Simplify: m = 1 / 2
The slope of the first line is 1 / 2.
For the second line:
m = 6 - 4 ÷ 1 - (-3)
m = 2 / 4
Simplify: m = 1 / 2
So, you can see that the slopes of both lines are the same. When the slopes are the same, that means that the lines are parallel to each other. When the coordinates are the same, that means that the lines are the same. When the slopes are flipped to each other and have are the opposite sign (positive or negative), then the lines are perpendicular.
Answer:
Step-by-step explanation:
2x + 5y = 3
y = x + 2
2x + 5(x + 2) = 3
2x + 5x + 10 = 3
7x + 10 = 3
7x = -7
x = -1
y = -1 + 2
y = 1
(-1, 1)
