In a diagram, AB =5cm, BC =6cm, BD =10 cm and ACD=90°. (i) Find CD.
(i)find AD. Given your answer in the form√k, where k is a constant.

In a box lenght 1m breadth 60 cm and height 40 cm small rectangular packets of dimension 5 cm into 8 cm into 10 cm are packed. how many such small packets can be packed in the big box?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Which of the following circles have their centers on the x-axis? check all that apply.