g A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique on 19 students and observed that they had a mean of 10.4 hours with a variance of 1.44. Is there evidence at the 0.025 level that the technique lengthens the training time

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

5(-9w) put expression in distributive property

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.