36) 308 ft^2. This can be determined by multiplying the three side lengths.
35) 85 ft^2
Answer:
-11xy
Step-by-step explanation:
-14xy -(-3xy)
multiply the bract first - sign * minus sign is plus sign
-14xy+3xy
since they are like terms u can subtract them.u should subtract them because minus and plus means subtract and we should put minus sign in front of the answer because 14 is the highest number and it's sign is negative .
-11xy
the average rate of change in the closed interval [ a , b ] is
( f(b) - f(a)))/(b - a)
f(b) = f(3) = 3² + 3(3) = 9 + 9 = 18
f(a) = f(-2) =(-2)² + 3(-2) = 4 - 6 = - 2
= (18 - (-2))/(3 - (-2)) =20/5 = 4
