Cho tam giác ABC vuông tại A kẻ AH vuông góc với BC trên tia đối của tia AH lấy điểm D sao cho AD=AH gọi E là trung điểm củaHC DE cắt AC tại F chứng minh F là trọng tâm tam giác DHC

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax