55(t-2) =45t
55t-110 = 45t
-110 = -10t
t = 11 hours
2 pm plus 11 hours = 1 am
Answer: answer is (0,3.5) and (0,-7)
Step-by-step explanation:
Answer:
3√
5
Step-by-step explanation:
Answer:
∠ 4 = 130°
Step-by-step explanation:
∠ 3 and ∠ 4 are adjacent angles and supplementary, thus
∠ 3 + ∠ 4 = 180°, that is
50° + ∠ 4 = 180° ( subtract 50° from both sides )
∠ 4 = 130°