Net change of wrestlers
Average rate of change = ---------------------------------
number of rounds
9 - 64 wrestlers - 55 wrestlers
Average rate of change = --------------------- = ------------------
4 rounds 4 rounds
Answer: there were 55 fewer wrestlers between rounds 1 and 4.
Answer:
C because the y-intercept is 2
Step-by-step explanation:
Hope this Helped
Step-by-step explanation:
The factorisation of 49b^2 - 81 is (7b - 9)(7b + 9). This is because 49 and 81 are the squares of 7 and 9 respectively, so these must be multiplied together. b^2 is b x b. Finally, it must be -9 and +9 to make -81, because when the signs are the same the result is a positive number
