Eliminate "x" from equation x-1/x=a/2, x2 + 1/x2 = b2

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3