For what value of n are the lines 7x+3y=8 and no+3y=8 perpendicular?

Which of the following represents the length of a diagonal of this trapezoid?

Jim had 3,067.48 in his checking account he wrote a check to pay for two airplane tickets. his account now has 1,845.24.

C. using a standard deck of 52 cards, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually exclusive event. true of false