Mathematics, 01.07.2019 01:30 keananashville
Find the domain of the ration function r(x)=7-2x/x^3-8x^2+7x
Answers: 1
![R(x)=\dfrac{7-2x}{x^3-8x^2+7x}\\\\The\ domain:\\\\x^3-8x^2+7x\neq0\\\\x(x^2-8x+7)\neq0\\\\x(x^2-x-7x+7)\neq0\\\\x[x(x-1)-7(x-1)]\neq0\\\\x(x-1)(x-7)\neq0\iff x\neq0\ \wedge\ x-1\neq0\ \wedge\ x-7\neq0\\\\\boxed{x\neq0\ \wedge\ x\neq1\ \wedge\ x\neq7}\to\boxed{x\in\mathbb{R}-\{0,\ 1,\ 7\}}](/tpl/images/0036/9468/323af.png)
Another question on Mathematics
Mathematics, 21.06.2019 18:30
Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?
Answers: 2
Mathematics, 21.06.2019 20:00
Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.
Answers: 2
Mathematics, 21.06.2019 23:00
Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?
Answers: 1
You know the right answer?
Find the domain of the ration function r(x)=7-2x/x^3-8x^2+7x...
Questions
English, 22.10.2019 16:00
Mathematics, 22.10.2019 16:00
Spanish, 22.10.2019 16:00
English, 22.10.2019 16:00
Mathematics, 22.10.2019 16:00
History, 22.10.2019 16:00
Mathematics, 22.10.2019 16:00
Social Studies, 22.10.2019 16:00
