Answer:
9. (c)
10. (a)
11. (a)
................
9) C: x=4, y=2rt3
10) A: XY/YZ
11) A: XY/XZ
Step-by-step explanation:
9 - that is a 30, 60, 90 triangle so the ratios will be a, root3a, 2a
10 - tan = opposite / adjacent
11 - cos = adjacent/hypotenuse
6 + 4 × -2/4 = 4
hi hope u understand
b=19
2x(3x+5)+3(3x+5)=ax2 +bx+c
by expansion,
6x2 +10x +9x+15=6x2 +19x +15
1800 liters
150*150*80=1800000 cubic cm
1800000/1000= 1800 liters
Might seem like a lot but really isn't.
