Explain the distance formula. then use it to calculate the distance between a(1,1) and b(7,-7).

It says factor each expression 49x-28?

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck

If the scale factor between two circles is 2x/5y what is the ratio of their areas?