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SashulF [63]
2 years ago
8

Find the inverse f(x)=6x+7

Mathematics
1 answer:
Lorico [155]2 years ago
7 0

Answer:

f^{-1} (x) = \frac{x-7}{6}

Step-by-step explanation:

let y = f(x) , then rearrange making x the subject

y = 6x + 7 ( subtract 7 from both sides )

y - 7 = 6x ( divide both sides by 6 )

\frac{y-7}{6} = x

Change y back into terms of x with x = f^{-1} (x) , then

f^{-1} (x) = \frac{x-7}{6}

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Look how he has proved that
Advocard [28]

Answer:

false

Step-by-step explanation:

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infinity - infinity is not 0.

0÷0 is undefined. so you cant just equate it to ( 2 × infinity)

to sum up this proof is entirely false.

if you still have any doubts make sure to ask.

5 0
2 years ago
Read 2 more answers
RS = 3x + 17, MN = 7x - 15
Fofino [41]

Answer:

Step-by-step explanation:

RS ≡ MN

 3x + 17 = 7x - 15

- 3x          - 3x

         17 = 4x - 15

      + 15        + 15

         32 = 4x

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3 0
3 years ago
75% of the whole is 180. What's the whole?<br> .
Veronika [31]
Solution for What is 75 percent of 180:

75 percent *180 =

( 75:100)*180 =

( 75*180):100 =

13500:100 = 135

Now we have: 75 percent of 180 = 135

Question: What is 75 percent of 180?

Percentage solution with steps:

Step 1: Our output value is 180.

Step 2: We represent the unknown value with $x$x​.

Step 3: From step 1 above,$180=100\%$180=100%​.

Step 4: Similarly, $x=75\%$x=75%​.

Step 5: This results in a pair of simple equations:

$180=100\%(1)$180=100%(1)​.

$x=75\%(2)$x=75%(2)​.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

$\frac{180}{x}=\frac{100\%}{75\%}$
180
x​=
100%
75%​​

Step 7: Again, the reciprocal of both sides gives

$\frac{x}{180}=\frac{75}{100}$
x
180​=
75
100​​

$\Rightarrow x=135$⇒x=135​

Therefore, $75\%$75%​ of $180$180​ is $135$
8 0
3 years ago
Which of the following could be the areas of the three squares shown?
matrenka [14]

Answer:

its c because ti's kinda same as the oa

Step-by-step explanation:

3 0
2 years ago
0.2222 as a simplified fraction
enot [183]

Hello!

If there is only one repeating digit, you will put it out of 9. This gives us 2/9.

Therefore, our fractions is \boxed {\frac{2}{9}}.

I hope this helps!

3 0
3 years ago
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