I think false.
.
Velocity the speed AND direction of something.
.
you run AROUND a track, so the direction changes. Thus velocity changes.
Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
2.11 pints = 1 litre
7 pints = 7/2.11
= 3.32 litre
1 pound =0.45 kg
2 pound = o.45*2 kg
= 0.9 kg
So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water
Marcia is dissolving 1 kg of salt in 3 litres of water.
So it can be said that Marcia made a more concentrated salt solution.
Answer:
I got 5ft
Step-by-step explanation:
2ft+2ft+1ft=5ft
Answer:
38.7
Step-by-step explanation:

A, B and C are the sides of the triangle and sinA, sinB and sinC are the opposing angles


Answer:
cos X = 
Step-by-step explanation:
simplify 15/39