During a nationwide program to immunize the population against a new strain of the flu, public health officials determined that the cost of inoculating x% of the susceptible population would be approximately C (x) = 1.85 x / 100-x  What would it cost to provide immunization to the next 30% of the susceptible population?

14) The total health expenditure per capita is modeled by H(1) 67e00 where f is the number of years. The predicted health expenditures (in dollar) after 13 years is

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lodine-131, with a half-life of 8.04 days, is used in the treatment of thyroid disorders. Assuming that none of the material is excreted from the body, what percentage of iodine-131 still will be present in the body one week after ingesting a small amount of material? 53.7% 54.7% 55.7% 56.7% What percentage of iodine-131 still will be present in the body 30 days after ingesting a small amount of material? 7.5% 8.0% 8.5% 9.0%

Q1. Assume that the rate at which radioactive nuclei decay is proportional to the number of such nuclei that are present in a given sample. In certain sample 10% of the original number of radioactive nuclei have undergone disintegration in a period of 100 years. a) What percentage of the original radioactive nuclei will remain after 1000 years? b) In how many years will only one-fourth (1/4) of the original number remain?

The rate of increase of COVID-19 infection is directly proportional to the number of people infected and to the number people not yet infected. An isolated remote barangay of population 10,000 records its first case on June 15, 2020. After two days, 100 people are infected. Develop a model that predicts the number of COVID-19 cases in the barangay. How long will it take for 90% of the population to be infected? Assume that the virus persists in the person infected.

Pesticide danger: One of the factors that determines the degree of risk a pesticide poses to human health is the rate at which a pesticide is absorbed into skin after contact. An important question is whether the amount in the skin continues to increase with the length of the contact, or whether it increases for only a short time before leveling off. To investigate this, measured amounts of a certain pesticide were applied to 20 samples of rat skin. Four skins were analyzed at each of the time intervals 1, 2, 4, 10, and 24 hours. The amounts of the chemical (in micrograms) that were in the skin are given in the following table. Duration Amounts Absorbed 1 1.5 2.7 1.6 1.6 2 1.7 1.7 2.4 2.3 4 1.4 2.1 1.6 1.2 10 2.4 1.2 2.1 2.6 24 2.2 1.8 1.7 1.3 Send data to Excel Part: 0 / 2 Part 1 of 2 (a) Construct an ANOVA table. Round your answers to four decimal places. One-way ANOVA: Pesticide Amount Source DF SS MS F Duration Error Total

In 1980 the population of alligators in a particular region was estimated to be 1700. In 2008 the population had grown to an estimated 5500. Using the Malthusian law for population growth, estimate the alligator population in this region in the year 2020.