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heyitsnott3rex
02.12.2019 •
Mathematics
The university of fountain lakes has just placed an advertisement in various school magazines, looking to recruit new students. at one stage in the ad, the following claim is made: "a whopping 85% of our graduate students go on to achieve proessional employment within 6 months of graduation! "there is a footnote at the bottom of the ad which qualifies this boast: "note: a 95% confidence interval was constructed and we found that the proportion of students going on to professional employment within 6 months of graduation is within 0.01 of 0.85".four students see this adverstisement, including the footnote, and interpret the ad in different ways.alex: "they are 95% confident that 85% of students will go on to achieve professional employment within 6 months."barbara: "they know that 85% of students will go on to achieve professional employment within 6 months."chris: "they know that somewhere between 84% and 86% of students will go on to achieve professional employment within 6 months."donna: "they are 95% confident that somewhere between 84% and 86% of students will go on to achieve professional employment within 6 months."the student that has the most correct interpretation is: select one: a. barbarab. alexc. chrisd. donna
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Ответ:
Calculate the volume of the empty cone.
V₁ = (1/3)π*(6 in)²*(10 in) = 120π in³
Calculate the volume of the sphere.
V₂ = (4/3)π*(1.5 in)³ = 4.5π in³
The volume that can be filled with flavored ice is
V = V₁ - V₂ = 115.5π in³ = 362.85 in³
Th volume is 115.5π in³ or 362.9 in³ (nearest tenth)