Answer:
x = 2 and x = 2
Step-by-step explanation:
Simplify this problem by factoring out the coefficient 2:
y=2x^2-8x+8 => 2(x^2 - 4x + 4)
Note that x^2 - 4x + 4 is a perfect square: (x - 2)^2.
y=2x^2-8x+8 = 2(x - 2)^2
Setting this last result = to 0, we get y = 2(x - 2)^2 = 0, which has a repeated solution: x = 2 and x = 2.
The pH is the measure of hydrogen ion concentration in a solution. The hydrogen ion concentration at pH 1.25 is .
<h3>How to calculate hydrogen concentration?</h3>
The pH is the negative logarithmic value of the hydrogen ion concentration in the sample.
The pH can be expressed as:
The hydrogen ion concentration can be given as:
The given pH is 1.25 The hydrogen ion concentration is given as:
The hydrogen ion concentration in the solution is .
Learn more about pH, here:
brainly.com/question/491373
One pound = $3.50
You are solving for 2 1/4 (or 2.25)
Multiply the two numbers
2.25 x 3.50 = 7.875
2 1/4 pounds cost $7.875 or ~$7.88
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