Answer:
Step-by-step explanation:
You know that the ratio of the television's screen is . This ratio can be also written as the following fraction:
The television shows an image with a ratio of which can be also written as a fraction:
Set up the following proportion and solve for "x":
Now, in order to find the percent of the screen area occupied make the following division:
Answer:
27/20
Step-by-step explanation:
The required steps are explained below to convert the quadratic function into a perfect square.
<h3>What is the parabola?</h3>It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.
Let the quadratic function be y = ax² + bx + c.
The first step is to take common the coefficient of x². We have
Add and subtract the half of the square the coefficient of x,
Then we have
These are the required step to get the perfect square of the quadratic function.
More about the parabola link is given below.
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