Ask question

Ask question

All categories

3 years ago

7

Suppose y varies inversely with x and that y=2 when x=8 What is an equation for this inverse variation?

1 answer:

bearhunter [10]3 years ago

3 0

Suppose y varies inversely with x and that y=2 when x=8 What is an equation for this inverse variation?

B. y= 2/8x

You might be interested in

3<br><img src="https://tex.z-dn.net/?f=3%20%2B%204%20%3D%20x%20-%201%20" id="TexFormula1" title="3 + 4 = x - 1 " alt="3 + 4 = x

Nostrana [21]

8 is the answer I got when I did the equation

5 0

2 years ago

Read 2 more answers

A cylindrical grain bin has a radius of 9 feet and a height of 30 feet. How many cubic feet of grain can the bin hold?

GarryVolchara [31]

Answer:1696.46

Step-by-step explanation:

V = π r 2 h

8 0

2 years ago

The polynomial x^2+3x-1 is a factor of x^4+3x^3-2x^2-3x+1 true or false?

pashok25 [27]

Answer:

Yes, it is true that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ .

Step-by-step explanation:

Let us try to factorize $x^4+3x^3-2x^2-3x+1$

$x^4+3x^3-2x^2-3x+1\\\Rightarrow x^4-2x^2+1-3x+3x^3$

Let us try to make a whole square of the given terms:

$\Rightarrow (x^2)^2-2\times x^2 \times 1+1^2+3x^3-3x\\\Rightarrow (x^2-1)^2+3x^3-3x\\$

--------------

Formula used above:

$a^{2} -2 \times a \times b +b^{2} = (a-b)^2$

In the above equation, we had $a = x, b = 1$ .

--------------

Further solving the above equation, taking $3x$ common out of $3x^3-3x$

$\Rightarrow (x^2-1)^2+3x(x^2-1)\\$

Taking $(x^{2} -1)$ common out of the above term:

$\Rightarrow (x^2-1)((x^2-1)+3x)\\\Rightarrow (x^2-1)(x^2+3x-1)$

So, the two factors are $(x^2-1)\ and\ (x^2+3x-1)$ .

$\therefore$ The statement that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ is <em>True.</em>

7 0

2 years ago

Which expression is equivalent to 16x4 – 64? and explain the answer plzz

GuDViN [60]

Answer:

4(4x1-16)

Hope this helps

Have a good day :)

PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64

Step-by-step explanation:

3 0

2 years ago

If 5,142 x 679= 3,491, then 51.42 x 67.9

nirvana33 [79]

Answer:

3.491

Step-by-step explanation:

move the decimal over 3 places.

5 0

3 years ago