The weights of bags of pet food are distributed normally about the mean, 50 lb. the standard deviation is 0.2 lb.

in a group of 20 bags, about how many would you expect to be within one standard deviation from the mean?
8 bags

5 bags

14 bags

3 bags

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

What is the factored form of the following expressions? d^2 – 13d + 36

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.