Lonnie is drinking a bottle of water. He drinks 13 liter of water throughout the day. If this amount was 45 of the water in the bottle, how much water was originally in the water bottle?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm