Alangs
01.07.2019 •
Mathematics
1. using the letters in the word fabric, find the number of permutations that can be formed using 2 letters at a time. show your work or explain how you got your answer. 2. the table shows the fat content and calories for the burgers at a fast food chain. write the best fit line that models the impact of fat content on calories. explain how you got your answer.
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Ответ:
1. Each letter is paired with each of the other letters to produce all the permutations of 2 letters. There are 6×5 = 30 of them.
FA FB FR FI FC .. A.F AB AR AI AC .. BF BA BR BI BC .. RF RA RB RI RC .. IF IA IB IR IC .. CF CA CB CR CI
2. The linear regression function of a graphing calculator can be used to find the line of best fit. Generally, this involves entering the given coordinates and invoking the appropriate regression calculation.
... calories ≈ 13.9×(fat grams) + 191.3
Ответ:
So, the ratio of their cost is 3:2.