How does music transfer to my ears from my phone and a wireless speaker?
1 answer:
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Answer:
Step-by-step explanation:
y=x^2-x+1
We want to solve for x.
I'm going to use completing the square.
Subtract 1 on both sides:
y-1=x^2-x
Add (-1/2)^2 on both sides:
y-1+(-1/2)^2=x^2-x+(-1/2)^2
This allows me to write the right hand side as a square.
y-1+1/4=(x-1/2)^2
y-3/4=(x-1/2)^2
Now remember we are solving for x so now we square root both sides:
The problem said the domain was 1/2 to infinity and the range was 3/4 to infinity.
This is only the right side of the parabola because of the domain restriction. We want x-1/2 to be positive.
That is we want:
Add 1/2 on both sides:
The last step is to switch x and y:
Answer:
<h3>The answer is 17.5 units</h3>Step-by-step explanation:
Using the distance formula
<h3>the distance between (-10, 12) and (5, 3) is
<h3>d = 17.492855
We have the final answer as
<h3>d = 17.5 units to the nearest tenth</h3>Hope this helps you