<h2>
Hello!</h2>
The answer is:
The range of the function is:
Range: y>2
or
Range: (2,∞+)
<h2>
Why?</h2>
To calculate the range of the following function (exponential function) we need to perform the following steps:
First: Find the value of "x"
So, finding "x" we have:
![y=2(5^{x}-1)\\\frac{y}{2}=5^{x}-1\\\\\frac{y}{2}-1=5^{x}\\\\Log_{5}(\frac{y}{2}-1)=Log_5(5^{x})\\\\x=Log_{5}(\frac{y}{2}-1)](https://tex.z-dn.net/?f=y%3D2%285%5E%7Bx%7D-1%29%5C%5C%5Cfrac%7By%7D%7B2%7D%3D5%5E%7Bx%7D-1%5C%5C%5C%5C%5Cfrac%7By%7D%7B2%7D-1%3D5%5E%7Bx%7D%5C%5C%5C%5CLog_%7B5%7D%28%5Cfrac%7By%7D%7B2%7D-1%29%3DLog_5%285%5E%7Bx%7D%29%5C%5C%5C%5Cx%3DLog_%7B5%7D%28%5Cfrac%7By%7D%7B2%7D-1%29)
Second: Interpret the restriction of the function:
Since we are working with logarithms, we know that the only restriction that we found is that the logarithmic functions exist only from 0 to the possitive infinite without considering the number 1.
So, we can see that if the variable "x" is a real number, "y" must be greater than 2 because if it's equal to 2 the expression inside the logarithm will tend to 0, and since the logarithm of 0 does not exist in the real numbers, the variable "x" would not be equal to a real number.
Hence, the range of the function is:
Range: y>2
or
Range: (2,∞+)
Note: I have attached a picture (the graph of the function) for better understanding.
Have a nice day!
Answer:
![\frac{15-3}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B15-3%7D%7B6%7D)
Step-by-step explanation:
You would start by writing the expression for “subtract 3 from 15", which would be
, then you would add on "then divided by 6", which would make it
Answer:
40
Step-by-step explanation:
Any solution x will mod 23 will also have x+23n as a solution, for some integer n. Since 900/23 = 39 3/23, we know there are 39 or 40 three-digit integers of this form.
As it happens, 100 is the smallest 3-digit solution. So, there are 40 three-digit numbers that are of the form 100 +23n, hence 40 solutions to the equation.
_____
The equation reduces, mod 23, to ...
10x = 11
Its solutions are x = 23n +8.
Answer;
1: when shawn woke up
2: the temperature change is 27
Step-by-step explanation: