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Complete the missing parts of the paragraph proof. Proof: We know that central angles are congruent, because it is given. We can say that segments AO, CO, BO, and DO are congruent because . Then by the congruency theorem, we know that triangle AOC is congruent to triangle BOD. Finally, we can conclude that chord AC is congruent to chord BD because
General
4 months ago
Maria drove from chicago, illinois, to milwaukee, wisconsin, a distance of 90 miles, at a mean speed of 56 miles per hour. on her return trip, the traffic was much heavier, and her mean speed was 49 miles per hour. find maria's mean speed for the round trip. hint: divide the total distance by the total time. (round the answer to one decimal place.)
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4 months ago
Please help ! Find the value of x
General
4 months ago
Truncate the decimal expansion of 15 to find the best approximation. A) 2.4 < 15 < 2.5 B) 2.46 < 15 < 2.47 C) 2.46 < 15 < 2.50 D) 2.47 < 15 < 2.50
General
4 months ago
PLEASE HELP ASAPa rectangular garden has length three times as great as its width a second rectangular garden has the same width as the first garden and length that is 3 meters greater than the length of the first garden the second garden has area of 90 square meters what is the width of the two gardens?
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4 months ago
An algebra test contains 38 problems. Some of the problems are worth 2 points each. The rest of the questions are worth 3 points each. A perfect score is 100 points.How many problems are worth 2 points? How many problems are worth 3 points?
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4 months ago
Please solve this ASAP
General
4 months ago
PLZ HELP ASAP DIVIDE LINE SEGMENTS LAST ONE
General
4 months ago
Is there an association between the use of computerized system and hospital mortality? In a large-scale hospital study, the study investigator randomly sampled 35 hospitals from all hospitals in Texas. Within each of the sampled hospitals, 500 patients who were hospitalized during the past year were randomly chosen. Their medical records were retrieved and whether they died while hospitalized was noted. It was found that on average, hospitals (26 of them) in which health care information is gathered and stored on computers had a lower patient death rate than hospitals (9 of them) that still rely on the "paper" system (using paper forms and handwritten notes). Part I What kind of study is this? A. An observational study. B. An experiment. C. None of the above. Part II What sampling method was employed in selecting the 17500 patients? A. Simple random sampling. B. Stratified random sampling. C. Multistage sampling. D. Systematic sampling. Part III Which of the following is the population of interest to the study investigator? Choose the most appropriate answer. A. All hospitals in Texas. B. All patients who were admitted to the 35 selected hospitals in Texas. C. The 35 Texas hospitals that were selected in the study. D. The 17500 patients whose medical records were retrieved in the study. Part IV Which of the following statements is correct about the average patient death rate of the 26 hospitals in which health care information is gathered and stored on computers? A. It is a variable of interest. B. It is a statistic. C. It is a parameter. Part V What graphical display is appropriate for comparing the distribution of patient death rates between hospitals that use computer systems and those that rely on the paper system? A. A scatterplot. B. A bar chart. C. A stem-and-leaf display. D. Side-by-side boxplots. Part VI Mr. Prudence read about the study results and concluded from there that hospitals should adopt computerized automation of notes and records because it increases patients chance of survival. Which of the following is a correct statement about Mr. Prudence's conclusion? A. It is a valid conclusion because the study was based on a very large number of patients. B. It is a valid conclusion because the study results showed that hospitals which use computerized systems have a lower patient death rate. C. It is an invalid conclusion because this study does not necessarily prove a causal relationship between the use of computerized system and hospital mortality. D. Both A) and B).
General
4 months ago
Simplify the expression square root of -1 over (3+8i)-(2+5i)
General
4 months ago
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