Ahealth survey determined the mean weight of a sample of 762 men between the ages of 26 and 31 to be 173 pounds, while the mean weight of a sample of 1,561 men between the ages of 67 and 72 was 162 pounds. the difference between the mean weights is significant at the 0.05 level. determine the meaning of this significance level.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Tan198=asin164=? how to solve this? ?