if the degrees of a triangle are 60 degrees, 3x degrees, and (x+20) degrees, and the sum of the angle measures is 180 degrees, what is the value of X

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

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

Nine people are going to share a 128-ounces bottle of soda. how many ounces will each person get drink? choose the correct equation and answer for this situation