Mathematics, 03.07.2019 18:30 brandonleekenyon
Let r be a communtative ring and a, b elements in r. prove that if a and b are units, then so is ab. what can we say about ab when a is a unit and b is a zero divisor? prove your claim.
Answers: 1
Mathematics, 21.06.2019 13:30
Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.
Answers: 1
Mathematics, 21.06.2019 18:40
Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.
Answers: 1
Mathematics, 21.06.2019 19:30
Aline passes through 3,7 and 6,9 what equation represents the line
Answers: 2
Let r be a communtative ring and a, b elements in r. prove that if a and b are units, then so is ab....
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