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2 years ago

The function F is defined by f(x) = 3x-5 over x+6 find f(5x)

Mathematics

1 answer:

sergejj [24]2 years ago

7 0

Answer:

$\frac{15x-5}{5x+6}$

Step-by-step explanation:

Given

f(x) = $\frac{3x-5}{x+6}$

To evaluate f(5x) substitute x = 5x into f(x)

f(5x) = $\frac{3(5x)-5}{5x+6}$ = $\frac{16x-5}{5x+6}$

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An electrical power plant burns 285 barrels of oil each day to

frosja888 [35]

Answer:

11970 barrels of oil

Step-by-step explanation:

1 day use 285 barrels of oil

6 weeks = 6*7 = 42 days

42 days use: 42 * 285 = 11970 barrels of oil

Hope this help you :3

8 0

2 years ago

Using 45-in. fabric, Regan needs 2 and one fourth yd for a dress, one fourth yd of contrasting fabric for the band at the bot

Arte-miy333 [17]

Answer:

$7\dfrac14$ yards$

Step-by-step explanation:

Regan needs the following:

$2\dfrac{1}{4}$ yards for a dress

$\dfrac{1}{4}$ yards of contrasting fabric for the band at the bottom$\\4\dfrac{3}{4}$ yards for a coordinating jacket.$

Total Length of fabric needed

$= 2\dfrac{1}{4}+\dfrac{1}{4}+4\dfrac{3}{4}\\=2+4+\dfrac{1}{4}+\dfrac{3}{4}+\dfrac{1}{4}\\=6+1+\dfrac{1}{4}\\=7\dfrac{1}{4}$ yards$

The number of yards of 45-in. fabric needed is $7\dfrac14$ yards.$

4 0

2 years ago

Read 2 more answers

What the equation solved for the slope m?

nata0808 [166]

well i have to see the equation to know

8 0

2 years ago

Jeans are reduced from 28.00 to 18.20 during a sale at a department store. What percentage was the original price reduced?

Natali [406]

Answer:

The original price was reduced 35%

Step-by-step explanation:

we know that

Jeans are reduced from $28.00 to $18.20

In this problem

The original price of 28.00 represent 100%

using proportion

Find out what percentage represent the difference between the original price and the new price

$\frac{28}{100}=\frac{28-18.20}{x}\\\\x=100(9.8)/28\\\\x=35\%$

therefore

The original price was reduced 35%

6 0

2 years ago

If mx=x+5/x-1 and n(x) = x – 3, which function has the same domain as (m*n)(x)

Ne4ueva [31]

Answer:c

Step-by-step explanation:

Given

$m\left ( x\right )=x+\frac{5}{x-1}$

and $n\left ( x\right )=x-3$

m of n is given by replacing x in $m\left ( x\right )$ by x-3

$m\left ( n\left ( x\right )\right )=x-3+\frac{5}{x-3-1}=x-3+\frac{5}{x-4}$

$m\left ( n\left ( x\right )\right )$ can take any value of x except x=4 because at x=4 function is not defined

and $h\left ( x\right )=\frac{11}{x-4}$ is also not defined for x=4 and can take any value of x

7 0

2 years ago