#6 -1 point if raw meat is allowed to thaw at 50°f, salmonella grows at a rate of 9% per hour. a. write a formula for the amount of salmonella present after t hours, if the initial amount is s a(t) a. health officials advise that the amount of salmonella initially present in meat should not be allowed to increase by more than 50%. how long can meat be left to thaw at 50° f? round your answer to the nearest tenth of an hour. hours
#7 1 point the concentration of a certain drug injected into the bloodstream decreases by 20% each hour as the drug is eliminated from the body. the initial dose creates a concentration of 0.9 milligrams per milliliter. a. write a function for the concentration of the drug as a function of time. c(t) the minimum effective concentration of the drug is 0.6 milligrams per milliliter. when should the second dose be administered? round your answe a. r to the nearest tenth of an hour hours verify your answer with a graph.
#7 1 point the concentration of a certain drug injected into the bloodstream decreases by 20% each hour as the drug is eliminated from the body. the initial dose creates a concentration of 0.9 milligrams per milliliter. a. write a function for the concentration of the drug as a function of time. c(t) the minimum effective concentration of the drug is 0.6 milligrams per milliliter. when should the second dose be administered? round your answe a. r to the nearest tenth of an hour hours verify your answer with a graph.

Listed below are time intervals (min) between eruptions of a geyser. assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. do not assume that the population standard deviations are equal. does it appear that the mean time interval has changed? is the conclusion affected by whether the significance level is 0.10 or 0.01? recent 78 90 90 79 57 101 62 87 71 87 81 84 57 80 74 103 62 past 88 89 93 94 65 85 85 92 87 91 89 91 follow the steps of hypothesis testing, including identifying the alternative and null hypothesis, calculating the test statistic, finding the p-value, and making a conclusions about the null hypothesis and a final conclusion that addresses the original claim. use a significance level of 0.10. is the conclusion affected by whether the significance level is 0.10 or 0.01? answer choices below: a) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.01 but is not rejected when the significance level is 0.10. b) no, the conclusion is not affected by the significance level because h0 is not rejected regardless of whether a significance level of 0.10 or 0.01 is used. c) yes, the conclusion is affected by the significance level because h0 is rejected when the significance level is 0.10 but is not rejected when the significance level is 0.01. d) no, the conclusion is not affected by the significance level because h0 is rejected regardless of whether a significance level of 0.10 or 0.01 is used.

In the diagram below,abc is congruent to dec what is the value of x

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21