You flip a quarter 12 times and got heads five times. what is the probability you will get heads on the 13th flip?

1/2

Step-by-step explanation:

the 13 flip is independent of the 12 flips before it

getting heads on the 13th flip is 1/2

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

5/12, or 5: 12

step-by-step explanation: