Answer: the blue and the pink
Answer:
The actual mass is either 453 or 447
Step-by-step explanation:
7 percent of 450
= (7/100) * 45
= 3.15
error = 3.15 g
hence actual mass
= 450 + 3.15
= 453.15
or
= 450 - 3.15
= 446.85
The second and fourth one are rational. They are perfect squares and are terminating or are fractions
Answer:
the roots are 5 and -3
Step-by-step explanation:
factorise and you should get (n+3)(n-5)
