Cho tam giác ABC vuông tại A,đường cao AH=6 cm. HC=8 cm a) Tính độ dài HB. BC. AB. AC
b) Kẻ HD vuông góc AC (D thuộc AC) .Tính độ dài HD và diện tích tam giác AHD

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)