![arpita111](/avatars/10130.jpg)
arpita111
20.11.2019 •
Mathematics
Find the range of the function f(x)=x2-6x.
if the domain is(-7,-2,1)
Solved
Show answers
More tips
- C Computers and Internet Clearing Cache: How to Speed Up Your Browser...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty Secrets of Tying a Pareo: 5 Ways...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Exponential function, growth, and decay...
- E English 7. In lines 62-72, how has word of Grendel s attacks gotten to other people including Beowulf?...
- H History How did the election of ulysses s. grant affect the voting rights of african americans? (5 points) grant received fewer votes in the south, so the fifteenth amendment was passed...
- S Social Studies What was at first known as the Great War soon became known as World War 1. Which sentence from the text explains the event that caused the name to be changed from the Great...
Ответ:
1) x²-6x = -2
x²-6x+2=0
x²-2(3)x+9-9+2 =0
(x-3)² -7 = 0
(x-3)²=(√7)²
x-3 =√7 or x-3 = - √2
x=3+√2 or x= 3-√2
2) x²-6x = -7
x²-6x+7=0
x²-2(3)x+9-9+7 =0
(x-3)² -7 = 0
(x-3)²=(√7)²
x-3 =√7 or x-3 = - √7
x=3+√7 or x= 3-√7
3 )
x²-6x = 1
x²-6x-1=0
x²-2(3)x+9-9-1 =0
(x-3)² -10 = 0
(x-3)²=(√10)²
x-3 = √10 or x-3 = - √10
x=3+ √10 or x= 3- √10
the range is : {3+√2,3-√2 ,3+√7,3-√7 ,3+ √10 , 3- √10 }
Ответ:
x= -3
Step-by-step explanation:
(-6-1)/(x-4) = 1
Then solve for x
-6-1 = x-4
x-4 = -7
x= -7+4
x= -3