The lengths of the sides of a triangle are in the extended ratio 44 : 55 : 77. the perimeter of the triangle is 6464 cm. what are the lengths of the sides?

2-digit numbers less than 91 which are 1 less than a multiple of 10

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

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