Explanation:
In order to prove that f is one-to-one and surjective, we can prove directly that f is bijective by findng .
To calculate the inverse of f, first we swap the variables x and y. Then we write y in values of x.
On this step it is important to separate what terms contain y and what terms do not. After that we can separate y as a factor
Thus, . Note that is well defined en every element of B, because it can be defined on any element different from 1, where the divider is zero.
An element of the form , for some x, is an element of A because it is different from -2. Lets suppose that there exist an x such as , thus 2x-1 = -2(1-x) = -2+2x, from where we conclude that 0 = -1, that is a contradiction. As a result, cant be equal to -2.
I hope this works for you!
Answer:
54 cm²
Step-by-step explanation:
Area of Parrelogram= Length×Breadth
You see, if u move the triangles to he other side, you'll get a rectangle. So you can just take the length multiply by the breadth.
Area=9×6=54 cm²
I did not use meters to find the area. I did not use it as the questions already shows the measurement as centimeters, so if I use meters, I will have to convert it to centimeters.
The equation of the line in this graph is y = 3/2x + 3.
Explanation:
In slope intercept form equations, the initial value is where everything begins. In this equation, that would be at the point (0,3). From there, because it is going up toward the right side, there is a positive slope. The formula for slope is rise over run, so to get our slope, we have to go up 3 units and over 2 units.
He would have to use 104 pages because 591+234=825 and 825÷8=103.125 but if you round it, it would go to 104.
(f+g)(x) is basically equal to f(x)+g(x), so you're just adding the two functions together.