Answer:
i think the third one and the last box is rational and the other one are not
Step-by-step explanation:
8 percent because 8 percent of 4.5 is 0.36 and you just add and you get 4.86
Answer:
9² = 40² + 41² - 2(40)(41) cos(C)
81 = 1600 + 1681 - 3280 cos(C)
81 = 3281 - 3280 cos(C)
-3200 = -3280 cos(C)
cos(C) = 3200 / 3280
cos(C) = 40 / 41
Step-by-step explanation:
