![sanchezp0821](/avatars/43996.jpg)
sanchezp0821
06.05.2021 •
Mathematics
Helpppppp please URGENTT!!
Solved
Show answers
More tips
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- C Computers and Internet How to Download Videos from YouTube? Simple Steps to Download Any Content...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine 10 Simple and Effective Tips on How to Lose Weight in a Week...
- F Food and Cooking What s the Best Rice for Cooking Plov?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
Answers on questions: Mathematics
- M Mathematics Can someone help meeee plz and no link plz is due in 9 minutes...
- M Mathematics HELP PLEASE THIS IS DUE IN 15 MIN look at the picture...
- M Mathematics Resuelva los siguientes problemas: a. Si una tabla tiene 28 pulgadas de ancho, ¿ Cuantos cm son? b. Si un árbol tiene 9 varas de ALTO, cuantos metros...
- M Mathematics Good afternoon!!! Here are some points...
- M Mathematics Nance I need help hihihihihihihi...
- M Mathematics Which value of x makes the following equation true? -3x - 32 = -2(5 – 4x)...
- M Mathematics An observer is standing 30 feet from a flagpole. She is looking at the top of the flagpole. How tall is the flagpole? Round to the nearest tenth if necessary....
- M Mathematics The tires on a mining truck are 14 ft tall. Which measurement is it (diameter, radius, or circumference)...
- M Mathematics ILL GIVE BRAINLIEST AND THANKS HELP...
- M Mathematics Use the information given in the diagram. Why segment AD congruent to segment BC, and angle BCA congruent to angle DAC?* (5 Points) B N C...
Ответ:
Given f(x)= 2^x +1
g(x)= -x +4
We have to find the value of x which satisfy the condetion : f(x)= g(x)
Solution : let us place expression given for f(x) and g(x) equal to each other
This gives us : 2^x + 1 = -x+ 4
Let us bring all x terms on left side only
we add x on both sides this makes : 2^x +1 +x = -x+ 4 +x
on the right side -x and +x becomes a "0"
we get : 2^x + 1 + x = 4
* let us nopw bring all the numeric terms on left side only
subtract 1 from both sides : 2^x + 1 + x - 1 = 4- 1
on the left side +1 and -1 becomes a "0"
on the rigth side 4-1 becomes a "3"
equation look like : 2^x + x = 3
We can see the right side is an odd number
on the left side there is sum of two terms one of them is 2^x which is an even number always .
we know that sum of an even number with an even number result out an even number
but we want a result as an odd number (3)
this suggest that x should be an odd number .
Also the sum of 2^x and x is 3 so 2^x should be smaller than 3
the smallest value ( x being an integer )
2^x can have is : 2^1= 2 which is for x=1
let us check plugging x= 1 . 2^1 + 1 = 3 which is TRUE
Hence answer is x= 1