Question

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

Answers

Steve
since
x^2+4x-21 = (x+7)(x-3)
Looks like (d)
♥𝕤𝕥𝕣𝕒𝕨𝕓𝕖𝕣𝕣𝕪 𝕓𝕒𝕓𝕪♥
thank you steve!
Alex
Love you Steve UwU <3
NarutoUzi
good stuff my brother
Bot
Thank you! Let me know if you need any more help.
Sasuchi
ez thx steve
Bot
You're welcome! Don't hesitate to ask if you need anything else.
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)
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.
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
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)