Answer:
Step-by-step explanation:
Rate = (20½ pounds)/(4 hours) = (5⅛ pounds)/hour
9 hours × (5⅛ pounds)/hour = 46⅛ pounds
Answer:
the second one
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
option 4
Step-by-step explanation:
(f*g)(x) =(x² + x+ 1)*(x² - x -1)
= x²*(x² - x -1) + x(x² - x -1) + 1*( x² - x -1)
= x²*x² - x²*x -x²*1 + x*x² - x*x -x*1 + x² - x -1
= x⁴ - x³ - x² +x³ - x² - x + x² - x -1
= x⁴ - x³ + x³ - x² - x² + x² - x - x - 1
= x⁴ - x² - 2x - 1
