Use cramer’s rule to solve the following system.

x + y = 7
x - y = 3

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Which of the following vectors are orthogonal to (2,1)? check all that apply

Can anyone explain to me how to do this? anything will .