Answer:
Option ( 2 ) g ( x ) = 2x² + 1
Step-by-step explanation:
[ Refer to the attachment ]
The methods of solving quadratic equations
1 answer:
There are three main ways of solving quadratic equations. The quadratic formula, factoring, and completing the square.
[1] using the quadratic formula
When the equation is in the form of ax² + bx + c = 0.
<em>Read more about the </em><em>quadratic formula</em><em> here:</em>
<em>brainly.com/question/27750885</em>
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[2] factoring
<em>Read more about how to solve with </em><em>factoring</em><em> here:</em>
<em>brainly.com/question/25829061</em>
[3] completing the square
To start out with completing the square, make sure your constant is isolated on one side. The equation will be as ax² + bx = -c
<em>Read more about </em><em>completing the square</em><em> here:</em>
<em>brainly.com/question/4822356</em>
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Answer:
About 0.559 seconds
Step-by-step explanation:
The height equation is:
Where is the initial height of the book, which is 5, so we can write:
Now, we want time it took for the book to reach ground (h = 0)
So, we substitute h = 0 and solve for t:
It took about 0.559 seconds for the book to reach the ground