A geological study indicates that an exploratory oil well should strike oil with probability . a. What is the probability that the first strike comes on the third well drilled?
b. What is the probability that the third strike comes on the seventh well drilled?
c. What assumptions did you make to obtain the answers to parts (a) and (b)?
d. Find the mean and variance of the number of wells that must be drilled if the company wants to set up three producing wells.

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

f(x)=4

step-by-step explanation:

the answer is b to that quesiton

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