there are two expressions that can represent the length of the rectangle, these two expressions are:
L = x
or
L = (4x + 12)
<h3>
Which expression could represent the length of the rectangle?</h3>
Remember that for a rectangle of length L and width W, the area is given by:
A = L*W
In this case, we know that the area is:
We can factorize that expression into:
So there are two expressions that can represent the length of the rectangle, these two expressions are:
L = x
or
L = (4x + 12)
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4x + 8 = 14
<u> -8 -8</u>
<u>4x</u> = <u>6</u>
4 4
x = 1 1/2
Answer:
i think ans is 16.52271164
From the half life equation, the remaining fraction 
where t = total time elapsed and T = Half life
Now, it is given that, 
And remaining fraction is
So, substituting these values in the above equation,
Taking log both sides,
Solving, we obtain that,
years
The graphed cosine function can either be:
cos(x + pi) or cos(x - pi).
<h3>
Which is the equation of the graphed function?</h3>
We know that this function is a cosine function with a phase shift, so the general form is:
f(x) = cos(x + P).
Where P is the phase shift.
In the graph we can see that when x = 0, f(0) = -1
And we know that cos(pi) = -1 = cos(-pi)
Then we must have that:
f(0) = cos(P) = -1
By what we wrote above, we know that P can be either -pi or pi (because of the parity of the cosine). Let's say that P = pi, then the cosine function is:
f(x) = cos(x + pi).
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