Pythagorus 17 is the long side and one of the short sides is 12 how do I figure out the other side

When you answer this can you explain

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%