Perimeter = lenght× 2 + width × 2
= 6 × 2 + 2 × 2
= 12 + 4
= 16
Let u=x^3
the original equation becomes: u^2-9u+8=0
factor this quadratic equation: (u-8)(u-1)=0
u=8, or u=1
that means x^3=8 or x^3=1
x=2 x=1
Answer:
s = 40/10
Step-by-step explanation:
s = speed, d = distance, t = time
d = 40m, t = 10s
s = 40m/10s
