To solve this problem, you can make a proportion:
3/900 = x/2100
In this case, the x represents the pounds that will be needed to cover 2,100 feet.
The first step is to cross multiply like this:
3 * 2100 = 900 * x
Now you can simply the equation.
6300 = 900x
Now you divide both sides by 900 to cancel it out.
7 = x
So, your answer is 7 pounds.
Answer:

Step-by-step explanation:

To re-write the function by completing the square, the procedure is to first
(i)take the coefficient of x
(ii)Divide it by 2 and Square it
Coefficient of x=1
Divided by 2 = 1/2
Square of 1/2 = 
Next, we add it to the function and subtract same so that the equation remains balanced

Pick each of the squared term and square the sum


Answer:
Step-by-step explanation:
2×2×2×2+7×7−5×5×5 =2⁴ + 7² - 5³
Eighty two point thirty three ..?
Answer:
5x+3=2x+21
Step-by-step explanation:
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