Verify that parallelogram wxyz with vertices w(-10, -2), x(-18,12), y(-2,10), and z (6,-4) is a rhombus by showing that it is a parallelogram with perpendicular diagonals.

Achel bought 12 rolls of packing tape and paid a total of $33.60. kevin also bought rolls of packing tape. the table shows the total amount he is paid for different numbers of packing tape. number of rolls of packing tape total amount paid 2 $6.40 5 $16.00 8 $25.60 how do the unit rates compare? select from the drop-down menus to correctly complete the statement. rachel's unit rate is than kevin's because is greater than .

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.