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4 years ago

Which table shows the same relationship as y = -x + 3x?

Mathematics

1 answer:

Sav [38]4 years ago

7 0

Answer:

The answer is C

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The circumference of a pool is 47 feet. Which formula can you use if you know that C =2 pie r

Slav-nsk [51]

Answer:

We use formula, circumference= $2\pi r$ to get r= 7.48

Step-by-step explanation:

Here is the complete question: The circumference of a pool is 47 feet. Which formula can you use to find Radius (r), if you know that C =2πr.

Given: Circumference= 47 feet.

We will use formula of circumference to find radius (r) as given.

Circumference = $2\pi r$

⇒ $47\ feet= 2\times 3.14\times r$ (∵ we know π=3.14)

Cross multiplying both side to get r.

⇒ r= $\frac{37}{2\times 3.14} = 7.48$

∴ radius (r)= 7.48

∴ We will use circumference formula $2\pi r$ to find Radius (r).

4 0

4 years ago

Consider the function <br>f(x) = 8x^3 +1.<br><br> If f(g(x)) = x and g(f(x)) = x , find g(x) ?

Elena L [17]

$g( \: f(x) \: ) = x$

And

$f( \: g(x) \: ) = x$ _________________________________

So :

$g(x) = {f}^{ - 1}(x)$

And

$f(x) = {g}^{ - 1}(x)$

_________________________________

So to find g(x) , we must find the inverse of f(x) .

Let's do it .....

$f(x) = 8 {x}^{3} + 1$

$y = 8 {x}^{3} + 1$

Subtract the sides of the equation minus 1

$y - 1 = 8 {x}^{3}$

Divided the sides of the equation by 8

$\frac{y - 1}{8} = {x}^{3} \\$

From the sides of the equation, we take the radical with interval 3

$\sqrt[3]{ \frac{y - 1}{8} } = x \\$

$\sqrt[3]{ \frac{1}{8}(y - 1) } = x \\$

$\frac{1}{2} \sqrt[3]{y - 1} = x \\$

$\frac{ \sqrt[3]{y - 1} }{2} = x \\$

So ;

${f}^{ - 1}(x) = \frac{ \sqrt[3]{x - 1} }{2} \\$

Now we find g(x) which is :

$g(x) = \frac{ \sqrt[3]{x - 1} }{2} \\$

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

7 0

3 years ago

Six more than the quotient of four and a number xxx.

Shalnov [3]

Answer:

$\large\boxed{\dfrac{4}{x}+6}$

Step-by-step explanation:

Six more than the quotient of four and a number x:

$\dfrac{4}{x}+6$

7 0

3 years ago

Read 2 more answers

2. Dado un número, la suma de su mitad, su doble y su triple es 55. ¿Qué número es?

pogonyaev

Answer:

English

Step-by-step explanation:

can you speak English plzzz

we need that

7 0

3 years ago

Read 2 more answers

ABC and def are parallel lines

Ahat [919]

Answer:...

Step-by-step explanation:

4 0

3 years ago