Three students attempt to define what it means for \overleftrightarrow{AB}ABA, B, with, \overleftrightarrow, on top and \overleftrightarrow{CD}CDC, D, with, \over left right arrow, on top to be perpendicular. quadCan you match the teacher's comments to the definitions?Definition of perpendicular linesTeacher's comments

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.