Answer:

Step-by-step explanation:
To find the required probability,
We can split the 40 years of Eric into very small pieces of time dt. Now, If Eric dies at time t and Gary dies before Eric, the probability is :

Hence the probability that Gary dies first is given by :

G(-1) = -1+3
= 2
F(2) = 5(2) - 10
= 0
Answer:
The tip was 7.77 dollars, which represent 18.5% of the value of the bill
Step-by-step explanation:
Dollars paid as tip
$49.77 - $42 = $7.77
$42 represent 100% of the bill
$7.77 ---------------x
x = (7.77/42)*100% = 18.5%
Answer:
7
Step-by-step explanation:
f(-5) is equal to 7