Solve the system by Elimination −7x−20y=−8

−9x−10y=−26

(2, 4)

(-2, -4)

(-2, 4)

(4, -1)

please hurry like really fast

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

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