Area of the yard is 40 .20 = 800sq ft
time taken = 25 mins
time taken to mow 1sq ft = 25/800 mins
time taken to mow 40 .30 =1200sq ft = ( 25 .1200)/800 = 371/2 mins
thus the extra time taken will be 371/2-25 = 121/2 mins
Answer with Step-by-step explanation:
We are given that

Point=(x,y)=(0,2)
We have to find the maximum rate of change of f at given point.





Maximum rate of change of f at point (0,2)=
Where x=Coefficient of i
y=Coefficient of j
By using the formula
Maximum rate of change of f at point (0,2)=
Direction of maximum rate of change of f=
Answer: 44
Step-by-step explanation:
Let your age be x.
Then your mother's age will be 2x + 12.
After 8 years,
Your age will be x + 8.
Your mother's age will be 3(x + 8) - 20 = 3x + 24 - 20 = 3x + 4.
This is equal to 2x + 12 + 8 = 2x + 20
2x + 20 = 3x + 4
3x - 2x = 20 - 4
= x = 16
Answer:linear
Step-by-step explanation:
it is a straight line