P = 2x+2(450-x)=900
A = x(450 - x)
A = x(450 - x)
-x² + 450x = A
-x² +450x = A
A is going to be maximum, when x is a vertex.
-(x² - 450x) = A
-(x² - 2*225x+225²) - 225² =A
-(x-225)² -225² = A
Vertex when x=225
Largest are 225(450-225) = 225² = 50625 ft²
The square has a largest area.
Read directions carefully. Eliminate as many options possible, select the best answer. Answer questions you know first. Go over exam again and answer hard questions next. If you have enough time left review the questions and answers again.
The word freedom is the word that should be in the blank.
The correct answer is - 2. There's an increase in the number of snakes and insects, and the storks face increased competition for food.
The significant decrease in the number of eagles, because of the human activity, and of the rabbits, because of a virus, has been of great use for the populations of the snakes to increase, as well as the populations of the insects. That has happened because the snakes lost their predator, and the insects lost a competition for a food source, so their numbers rose.
On the other hand, because of the increase of the number of snakes, the storks had started to face increased competition, as both have the same food source, the frogs.