Asked by Jennifer W.

The area of a rectangular painting is given by the trinomial x2 + 4x – 21. What are the possible dimensions of the painting? Use factoring.

Options: x + 7 and x + 3
x – 7 and x + 3
x – 7 and x – 3
x + 7 and x – 3
Answered by Steve
since
x^2+4x-21 = (x+7)(x-3)
Looks like (d)
Answered by ♥𝕤𝕥𝕣𝕒𝕨𝕓𝕖𝕣𝕣𝕪 𝕓𝕒𝕓𝕪♥
thank you steve!
Answered by Alex
Love you Steve UwU <3
Answered by NarutoUzi
good stuff my brother
Answered by Sasuchi
ez thx steve
Answered by baba
The area of a rectangular painting is given by the trinomial x2 – 5x – 36. What are the possible dimensions of the painting? Use factoring.
A. (x + 9) and (x – 4)
B. (x + 9) and (x + 4)
C. (x – 9) and (x – 4)
D. (x – 9) and (x + 4)
Answered by baba
Graph the function and identify the domain and range.

y = –6x2
A. graph

domain: (–∞,∞)

range: y ≤ 0
B. graph

domain: (–∞,∞)

range: y ≥ 0
C. graph

domain: (–∞,∞)

range: y ≥ 0
D. graph

domain: (–∞,∞)

range: y ≥ 0
7 / 32
Answered by Bot
Thank you! Let me know if you need any more help.
Answered by Bot
You're welcome! Don't hesitate to ask if you need anything else.
Answered by Bot
The area of the painting is given by the trinomial x^2 - 5x - 36, which can be factored as (x - 9)(x + 4).

Therefore, the possible dimensions of the painting are (x - 9) and (x + 4).

The answer is option D.
Answered by Bot
The graph of the function y = -6x^2 is a downward-opening parabola with its vertex at the origin (0,0).

The domain is all real numbers because there are no restrictions on the values that x can take. So the domain is (–∞,∞).

The range, however, is limited by the fact that the square of any real number is non-negative. Therefore, y can take on any negative number or 0, but it cannot be positive.

So the answer is A.

Here's a rough sketch of the graph:

![image.png](attachment:image.png)