Tam giác ABC cân tại A, BC=120cm, AB=100cm. Các đường cao AD và BE gặp nhau ở H a, Tính độ dài AD?
b, Tính độ dài HD, BH
c, Tính độ dài HE

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

Identify the graph of y = ln x + 1.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?