What is the most reasonable answer for PI squared?

Mathematics

1 answer:

Daniel [21]3 years ago

3 0

Answer:

9.87

Step-by-step explanation:

usually in math you never have to write down what pi squared is, you just have it incorporated into your equations. But here is the best written answer.

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Help me. The graph of a polynomial with unknown a is given. Write a polynomial

Xelga [282]

Answer:

$f(x)=\dfrac{7}{20}\left(x+2\right)^{2}\left(x-1\right)$ .

Step-by-step explanation:

If a graph touches the x-axis at x=c, then (x-c) is a factor of function.

From the given graph it is clear that the graph of function intersect x-axis at x=1 and touch the x-axis at x=-2.

It means (x-1) and (x+2) are not factors of given function but power of (x+2) must be 2.

So, the required function is

$f(x)=a(x+2)^2(x-1)$ ...(1)

where, a is a constant.

From the given figure it is clear that the graph passes through the point (-4,-7). So, substitute x=-4 and f(x)=-7 in the above function.

$-7=a(-4+2)^2(-4-1)$

$-7=a(-2)^2(-5)$

$-7=-20a$

$\dfrac{7}{20}=a$

Substitute $a=\dfrac{7}{20}$ in (1).

$f(x)=\dfrac{7}{20}(x+2)^2(x-1)$

Therefore, the required function is $f(x)=\dfrac{7}{20}(x+2)^2(x-1)$ .

6 0

3 years ago

Find the area of this shape

Lilit [14]

$9 \times 13 = 117 {cm}^{2}$

4 0

3 years ago

what transformation occurs(vertically stretched, vertically compressed, reflection, translation, rotation, etc) happens when a f

trasher [3.6K]

<h3>Answer: reflection over x axis</h3>

g(x) = -f(x) is the same as g(x) = -1*f(x)

Since y = f(x), we are really saying g(x) = -1*y. Whatever the y coordinate is on f(x), multiply it by -1. This turns something like y = 2 into y = -2, or something like y = -3 into y = 3, etc etc. Visually this reflects the point over the horizontal x axis. Do this to all points on f(x), and the entire curve reflects over the x axis.

I show an example of y = x^2 turn into y = -x^2 in the attached image below.