To find the side lengths, you have to factor 4x^2 + 28x + 49. This equation factored is (2x+7)(2x+7), so each side length is (2x+7) feet.
Answer:
The y-coordinate is changing by the rate of -70 cm per sec.
Step-by-step explanation:
Given equation,

Differentiating with respect to time (t),

We have,


plz put value from 1 and try other number also