Find a polynomial which, when added to the polynomial 3x^2+3x-1 is equivalent to the following expressions:
1 answer:
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The first thing we are going to do for this case is define variables.
We have then:
x: number of days
y: number of pages remaining.
We write the linear equation that models the problem:
The intersection with the vertical axis is:
We evaluate x = 0:
We get the point:
The intersection with the horizontal axis is:
We evaluate y = 0:
We get the point:
Answer:
The graph is:
Graph located in the bottom left.
Answer:
Step-by-step explanation:
We know that:
: The number of vibrations per second of the nylon guitar string.
: Tension.
: The length of the string.
Since varies directly with the square root of the
and inversely with
, the equation has the following form:
Where "k" is the constant of variation.
Knowing that when and
,
, we can find the value of "k":
Finally, in order to find the tension when the length is 0.3 meters and the number of vibrations is 12, you need to substitute these values and the value of "k" into and solve for
: