Asked by Daniel
a rectangle has sides of length (2x+3)cm and (x+1)cm. what is the domain of x if the area of the rectangle is greater or equal to 10cm^2
Answers
Answered by
oobleck
(2x+3)(x+1) >= 10
2x^2 + 5x - 7 >= 0
(2x+7)(x-1) >= 0
since the parabola opens upward, y < 0 between the roots. So, the domain is
x <= -7/2 OR x >= 1
2x^2 + 5x - 7 >= 0
(2x+7)(x-1) >= 0
since the parabola opens upward, y < 0 between the roots. So, the domain is
x <= -7/2 OR x >= 1
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.