For a standard normal distribution, which of the following expressions must always be equal to 1?
pzs-a) - p(-aszsa) - p(z2a)
pizs-a) - p(-aszsa)+ p(z? a)
o p(zs-a)+ p(-aszsa)- p(zea)
p(zs-a)+p(-aszka)+p(728)

ab will be equal to

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

the answer is 1/4

step-by-step explanation: