Answer: y = (5x)^2
Step-by-step explanation: You're finding the inverse.
- f(x) = /5 --> y = /5 (they mean the same thing)
- x = /5 (switch x and y)
- 5x = (multiple both sides by 5)
- (5x)^2 = y (square both sides) --> the first answer choice
25.50/3= 8.50
34/4= 8.50
They charge the same. $8.50 an hour
From the graph shown, you can see that the point of intersection is -3.464 and ≈ 3.464.
<h3>Functions and values</h3>
Given the following functions
f(x)= log (x-1)
g(x)= 1/2x^2 - 4
If both functions are equal then;
log(x+1) = 1/2x^2-4
In order to determine the solution, we will plot both equations on a graph and locate the point where both curves meet
From the graph shown, you can see that the point of intersection is -3.464 and ≈ 3.464.
Learn more on functions and values here; brainly.com/question/2284360
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The amount invested by Mr.Smith in 5% is $240 .
<u>Step-by-step explanation:</u>
We have , Mr. Smith invests a certain amount of money at 8% and twice as much at 5%. If his annual income from the two investments is $720 . Let us suppose that Mr.Smith invest $x so :
Amount of money invested in 5% is . And, amount of money invested in 8% is twice that of 5% i.e. .
Now, total investment is $720 so,
+( ) = $720
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The amount invested by Mr.Smith in 5% is i.e.. ∴ The amount invested by Mr.Smith in 5% is $240 .