Which of the following is an important contribution of the greek thinker pythagoras? a. he invented a method for determining an object’s volume. b. he discovered an important mathematical formula. c. he created a new technique for making metal weapons. d. he developed a philosophy based on observation and logic.

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.