In 2020, Arizona's second wave of Covid-19 infec- ions grew at 3% a day; that is, the number of confirmed cases grew by a factor of (1.03)' over 1 days. Covid-19 confirmed cases in West Virginia in 2020 grew at 1.75% a day; that is, by a factor of (1.0175)' over t days.³ (a) By what factor did Arizona's cases grow over four months? How about West Virginia's cases? (b) Notice that Arizona's daily percent growth rate is nearly double the daily percent growth rate in West Virginia. Is the 4-month growth factor for Arizona approximately double the 4-month growth factor for West Virginia?

The exponential function f(x) = 40.55(1.025)* describes the population of a certain country, y, in millions, in year X. a) Substitute O for × and, without using a calculator, find the country's population in year O. b Find the country's population in year 25 as predicted by this function.

The number of cases within 3 days due to coronavirus is as follows: 21 May 2020: 961 New Case 22 May 2020: 952 New Case 23 May 2020: 1186 New Case 1a) Calculate the growth rate according to this information and express this variable as X = Aert. 2a) Using the answer 1a, Make a prediction for the previous and next day of the end date you use in your calculations.

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 1.8 1.9 1.8 2.2 2 1.5 2.4 1.5 2.5 4 1.5 2.7 1.3 1.9 10 1.3 1.5 1.4 2.6 24 1.8 1.3 2.3 1.8   Construct an ANOVA table. Round your answers to four decimal places. One-way ANOVA: Pesticide Amount…

43) If $15,000 is placed into an account that earns 7.5% interest per year, find the total amount in the account after 10 years for the following compound methods. a. Yearly b. Quarterly P=15.000 10x3 15cdo (1+0.075) (16) 15000 (8.5) 127,500 c. Monthly = 12 15000 (146-15/12) d. Continuously 1 A P

Suppose that the time in minutes, Y , that an insect spends on a plant is exponentiallydistributed such that Y ∼Exp( 1/3)(a) Evaluate P(Y > 4)(b) Evaluate P(2 < Y < 6)(c) What is the mean length of time that this insect spends on a plant?

14/13 = x/13