1) yes
2) x=-4,y=-7
3) x= -3, y=4
4) x= -1, y=2
5) x= -5, y=-8
Answer:
Answer:
AB = 20 metres
BC = 60 metres
Step-by-step explanation:
Cherry was picked the most which was 28 times out of 51
The probability of picking cherry is 28/51
Answer:
2712.96 mm³
Step-by-step explanation:
V = πr²h
= 3.14 x 12 x 12 x 6
= 37.68 x 72
= 2712.96 mm³
Answer:
![\large\boxed{(\sin42^o)(\cos38^o)-(\cos42^o)(\sin38^o)=\sin4^o}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%28%5Csin42%5Eo%29%28%5Ccos38%5Eo%29-%28%5Ccos42%5Eo%29%28%5Csin38%5Eo%29%3D%5Csin4%5Eo%7D)
Step-by-step explanation:
![(\sin42^o)(\cos38^o)-(\cos42^o)(\sin38^o)\\\\\text{use}\ \sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta\\\\\underbrace{(\sin42^o)}_{\sin\alpha}\underbrace{(\cos38^o)}_{\cos\beta}-\underbrace{(\cos42^o)}_{\cos\alpha}\underbrace{(\sin38^o)}_{\sin\beta}\\\\=\underbrace{\sin(42^o-38^o)}_{\sin(\alpha-\beta)}=\sin4^o](https://tex.z-dn.net/?f=%28%5Csin42%5Eo%29%28%5Ccos38%5Eo%29-%28%5Ccos42%5Eo%29%28%5Csin38%5Eo%29%5C%5C%5C%5C%5Ctext%7Buse%7D%5C%20%5Csin%28%5Calpha-%5Cbeta%29%3D%5Csin%5Calpha%5Ccos%5Cbeta-%5Ccos%5Calpha%5Csin%5Cbeta%5C%5C%5C%5C%5Cunderbrace%7B%28%5Csin42%5Eo%29%7D_%7B%5Csin%5Calpha%7D%5Cunderbrace%7B%28%5Ccos38%5Eo%29%7D_%7B%5Ccos%5Cbeta%7D-%5Cunderbrace%7B%28%5Ccos42%5Eo%29%7D_%7B%5Ccos%5Calpha%7D%5Cunderbrace%7B%28%5Csin38%5Eo%29%7D_%7B%5Csin%5Cbeta%7D%5C%5C%5C%5C%3D%5Cunderbrace%7B%5Csin%2842%5Eo-38%5Eo%29%7D_%7B%5Csin%28%5Calpha-%5Cbeta%29%7D%3D%5Csin4%5Eo)