Answer:
idk
Step-by-step explanation:
1 + 1 + 1 + 2 = 5
5 x 9 = 45
Therefore, the total number of km is 45.
Answer:
54
Step-by-step explanation:
18(3) = 18+18+18 = 54
But remember that we have two negatives
When you multiply two negative numbers, they become positive, therefore your answer is 54
Answer:
41.4
Step-by-step explanation: Since this isn't a right triangle and you're given side side side (SSS), you need the Law of Cosines.
cos(c) = (a^2 + b^2 - c^2)/2ab
(100+144-64)/2*12*10
cos(c) = 180/240
multiply both sides of the equation by cos^-1 to get ride of cos:
cos^-1(cos(c)) = cos^-1(180/240)
c = 41.4
Answer:
True
Step-by-step explanation:
