Answer:
72x^7+24x^3 (finding the derivative using the chain and power rules)
Step-by-step explanation:
Answer:
x=5
Step-by-step explanation:
XY=5x and 25. Therefore, 5x and 25 have the same value. 5 times 5 is 25 so x=5
1760/40 = 44
He covered 44 ft^2 per lb.
2640/60 = 44
Again, he covered 44 ft^2 per lb.
In both cases, he covered 44 square feet per pound.
To cover 4480 sq ft, he needs:
4480/44 = 101.818181... = 101 9/11 pounds