Which of the following is a area of the special trepezoid if ab=19,cd=19 and the height is 14

What is the lcm of 16 and 40 ? 24 and 40 ?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Solve -.016x= -16. need solving this