Step-by-step explanation:
RS = 8 × cos(61°) = 2.9 [1 dp] = 3cm
Answer:
x=0, x=5
x²-5x+8=8
x²-5x=0
x(x-5)=0
x=0 , x-5=0
x=5
15
1/3*3=1*5=5
so
3*5=15
