That expression can’t be simplified and the answer is unknown. Finding what 3x+4y is impossible unless more information is provided.
Addition because it asks how much
Answer: 9 mm
Explanation:
a² + b² = c²
8² + 5² = c²
c² = 64 + 25
c² = 89
c= √89
c = 9 mm (nearest whole number)
Cos 270 = 0 and sin 270 =-1
so -5i from a part.
Because time flies when your having fun...lol