Chord AB and CD in figure 7.22 intersect externally at Q. If AB=5cm, BQ=6cm, and DQ=4cm, calculate the length of chord CD.

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.