Answer:
Step-by-step explanation:
Ok but where is the question
This is a stupid question. The teacher who asked this needs to go back to school.
A = x⁴ - 9y²
That's going to be a number. As long as it's positive we can choose any length for our rectangle L and we can compute the width by W=A/L. So the correct answer is the dimensions are L by (x⁴ - 9y²)/L.
They don't want the correct answer. They want you to factor this expression. We'll do it, but don't believe for a second this factoring somehow constrains the possible dimensions of some rectangle.
We use the difference of two squares, a²-b² = (a+b)(a-b)
A = x⁴ - 9y² = (x²)² - (3y)² = (x²+3y)(x²-3y)
Answer: x²+3y by x²-3y
Answer:
Step-by-step explanation:
13.75+(-11.25)=13.75-11.25
13-11=2
0.75-0.25=.50
2.50
Answer:
y=2
Step-by-step explanation:
y+7=9(y-1)
y+7=9y-9
y-9y=-9-7
-8y=-16
y=2
We can find the answer by dividing the world population by the area of NYC in square feet.
There is 27,878,400 sq ft in a mile because 5280^2 is that value. So that means
7400000000 people in 27,878,400 sq ft. You can divide that into sqft/person which is 0.00376 sqft/person. Now multiply that by 305. you will get 1.149 sq/person in NYC.
Hope this helps!
ps that was a crazy problem
