When 3 is substituted for x, in the equation y=x2-4 what is y.

y = 2

Step-by-step explanation:

plug in the x value given, y = 3(2) - 4

simplify, y = 6 - 4

y = 2

y=5

Step-by-step explanation:

Substitute 3 in for x

y=x^2-4

y=(3^2)-4

Find the exponent first

y=9-4

Subtract

y=5

Hope this helps! :)

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

step-by-step explanation: