Determine if DEFG is a parallelogram given coordinates: D(-8,1), E(-3,6), F(7,4), G(2,-1). Use distance and/or slope formulas to support your answer.​

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

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

What is the sum of the first 8 terms of the geometric series