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Colt1911 [192]
3 years ago
5

Which statement describes the first step to solve the equation by completing the square?

Mathematics
2 answers:
neonofarm [45]3 years ago
7 0
The first step I would take is
.. Multiply both sides of the equation by 1/4.

_____
You could start by adding 16 to both sides of the equation, to make the left side the square (2x +4)^2.
Viefleur [7K]3 years ago
3 0

Answer:


Step-by-step explanation:


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Find the area between the graph of the function and the x-axis over the given interval, if possible.
vodomira [7]

Answer:

A= -\frac{5}{-1} - \lim_{x\to\infty} \frac{5}{x-2} = 5-0 = 5

So then the integral converges and the area below the curve and the x axis would be 5.

Step-by-step explanation:

In order to calculate the area between the function and the x axis we need to solve the following integral:

A = \int_{-\infty}^1 \frac{5}{(x-2)^2}

For this case we can use the following substitution u = x-2 and we have dx = du

A = \int_{a}^b \frac{5}{u^2} du = 5\int_{a}^b u^{-2}du

And if we solve the integral we got:

A= -\frac{5}{u} \Big|_a^b

And we can rewrite the expression again in terms of x and we got:

A = -\frac{5}{x-2} \Big|_{-\infty}^1

And we can solve this using the fundamental theorem of calculus like this:

A= -\frac{5}{-1} - \lim_{x\to\infty} \frac{5}{x-2} = 5-0 = 5

So then the integral converges and the area below the curve and the x axis would be 5.

7 0
3 years ago
Use the rectangle below to answer both parts of the question.
trasher [3.6K]

Answer:

part 1= "72=(2w)+(w-15)"

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I'm not sure if they want "w = abc"

I used that equation to solve part 2

Hope this helps you, I've been where you are

6 0
2 years ago
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