A man drove 280 miles in 3.5 hours. If the posted speed limit was 65 mph 10 points (miles per hour) the entire way, how many miles was he driving?*
O 75 mph
O 68 mph
O 80 mph
077 mph

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

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