Answer:
is your average rate of change,
Step-by-step explanation:
average rate of change is
, by slope formula
simplify this to get 
, which is the definition of the derivative as h goes to 0
since you defined x=a, we can substitute a for x and vice versa to find our derivative.
simplifying
(your average rate of change)
Answer:
2m
Step-by-step explanation:
(2 slices/sandwich) × (1 sandwich/hiker) × (m hikers) = 2m slices
_____
"Unit analysis" can be helpful keeping the numbers straight.
Answer:
11/50
Step-by-step explanation:
In draw 1,
Favourable outcome / Total number of possibilities = 12/25
In draw 2,
Favourable outcome / Total number of possibilities = 11/24
Total chance of getting 2 even numbered cards = 12/25 * 11/24 = 11/50
Theres one way i know its to divide 25 into 300 and the answer is 12
