Answer:
the firat one in the top left, ot looks like a v
Step-by-step explanation:
The x axis cannoy be repeated
I really wished I knew but I haven’t learned that yet:(
Factoring a trinomial is a tedious process, sometimes involving a trial-and-error process. The best approach would be to try out all the choices, replace them with x, and see if it satisfies the equation to be equal to zero. Since no choice are given, we use another technique: by using the scientific calculator under mode EQN (equation).
Once you're in mode EQN, choose the trinomial (ax^3 + bx^2 +cx +d =0).Then, all you have to do is substitute the coefficients (a=3, b = 8, c = -87, d = 28). Press equals, then the three roots would appear.
The roots, and therefore factors, are -7, 4 and 1/3. Any of those are factors of the given equation.
Answer: 
Step-by-step explanation:
The surface area of a rectangular prism can be calculated with the following formula:
Where "l" is the length of the rectangular prism, "w" is the width and "h" is the height.
In this case you can say that the length, the width and the heigth of this rectangular prism, are the following:
Knowing these values, you can substitute them into the formula shown before:
Finally, you must evaluate in order to calculate the surface area of the rectangular prism.
You get that this is:
