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tangare [24]
3 years ago
8

Find the inverse of the function f(x) = 2x – 4.

Mathematics
2 answers:
otez555 [7]3 years ago
6 0
<span>f(x) = 2x – 4
</span><span>inverse
x = 2y - 4
2y = x + 4
  y = x/2 + 2

answer
inverse
f-1(x) = </span>x/2 + 2
LuckyWell [14K]3 years ago
6 0
Hey there!

Your question states: <span>Find the inverse of the function f(x) = 2x – 4

</span>→ We need to remember that when finding the inverse of a function, this would mean that we would find the complete opposite of the whole expression listed above.


solve \ 2x-4= y \ for \ x&#10;&#10;
<span>
Substitute </span>y=x

Your correct answer would be \boxed{ \frac{x+2}{2} }   <span>✓</span>
<span>
Hope this helps.
~Jurgen</span>
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Andrews [41]
The 13 stripes alternate red and white: 7 red and 6 white.
Each of 13 stripes is (39 in. / 13) = 3 in. wide.
4 of the 7 red stripes are 39 in. long. The other 3 are 65 in. long.

The total area (l*w) of the flag is (65 in.)*(39 in.)=2535 sq. in.

The red stripes make up an area (l*w) that is:
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The fraction of the flag that is red is:
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4 0
3 years ago
Find the total surface area of the following cone. Leave your answer in terms of pi.
kramer

Answer:

90π cm²

Step-by-step explanation:

Given: Radius of circular base= 5 cm

           height= 12 cm

   

Now finding the surface of cone.

Formula; Surface area of cone= \pi rl+ B

Where; r= radius

l= slant height

B is the area of base, which is circle.

Area of circle (B)= πr²

Area of circle (B)= \pi \times 5^{2} = 25\pi

∴ Area of circle (B)= 25\pi

Finding slant height (l)

Formula; l= \sqrt{r^{2}+h^{2}  }

⇒l = \sqrt{5^{2}+12^{2}  } = \sqrt{25+144 }

∴ l= \sqrt{169} = 13\ cm

Next, using the formula for finding surface area of cone.

Surface area of cone= 5\times 13\times \pi + 25\pi

⇒ Surface area of cone= 65\pi +25\pi = 90\pi

∴ Surface area of cone= 90π cm²

6 0
3 years ago
Which is not a rational value
Maslowich
9/3
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-Joker7721
3 0
3 years ago
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Can someone tell me the answer to this question please?????
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
What is the solution to the expression Negative 2 minus 3 minus (negative 4)? A number line going from negative 10 to positive 1
beks73 [17]

The solution of the expression is -1 ⇒ 3rd answer

Step-by-step explanation:

Let us revise some important rules on the number line

  • If we add number to another number we move to right
  • If we subtract a number from another number we move to left

∵ The expression is negative 2 minus 3 minus (negative 4)

∵ negative 2 = (-2)

∵ minus means (-)

(-2) minus 3 means move 3 units from (-2) to left, so you will pass -3, -4, and stop at -5

∴ (-2) - 3 = -5

∵ minus (negative 4) = - (-4)

- Remember (-)(-) = (+)

∴ minus (negative 4) = + 4

That means move 4 units to the right from -5, then you will pass -4, -3, -2, and stop at -1

∴ -5 + 4 = -1

∴ The expression (-2) - 3 - (-4) = -1

The solution of the expression is -1

Learn more:

You can learn more about the directed numbers in brainly.com/question/10364988

#LearnwithBrainly

5 0
3 years ago
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