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Ksenya-84 [330]
3 years ago
11

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

Mathematics
2 answers:
Vsevolod [243]3 years ago
5 0

The correct answer for this is D) g(x) = 1/2x + 2

Because f(x) is one to one,  its inverse is a function.

irga5000 [103]3 years ago
4 0
Replace <span><span>f<span>(x)</span></span><span>fx</span></span> with <span>yy</span>.<span><span>y=<span><span>2x</span><span>−4</span></span></span><span>y=<span><span>2x</span><span>-4</span></span></span></span>Interchange the variables.<span><span>x=<span><span>2y</span><span>−4</span></span></span><span>x=<span><span>2y</span><span>-4</span></span></span></span>Solve for <span>yy</span>.Tap for more steps...<span><span>y=<span>2+<span>x2</span></span></span><span>y=<span>2+<span>x2</span></span></span></span>Solve for <span>yy</span> and replace with <span><span><span>f<span>−1</span></span><span>(x)</span></span><span><span>f<span>-1</span></span>x</span></span>.
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Fynjy0 [20]

Answer:

x=12 y=3

Step-by-step explanation:

Since the scale factor is 1:3, that means that the length and width of Q multiplied by 3 gives the corresponding length and width of P.

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3 years ago
A sinusoidal carrier wave has an amplitude of 5 volts, a frequency of 1MHz, and zero phase angle. Select the correct carrier wav
Vedmedyk [2.9K]

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The correct answer is b.

Step-by-step explanation:

The wave equation is given generally as:

c(x, t) = Acos(kx - wt)

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x = horizontal distance moves by the wave.

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The options show to us that the wave depends only on t and not (x, t).

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6 0
3 years ago
Each month for 7 months, Samuel mows 3 lawns . How many more lawns does he need to mow before he has mowed 29 lawns
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Adair suggests that they package together the fries and soda in a combo for a $0.75 discount. lf the student council pays $0.85
Ira Lisetskai [31]

Answer:

$58.50

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Total revenue for 45 combo = 45 × $1.30 = $58.50

Therefore, they will make $58.50 if they sell 45 combos.

5 0
3 years ago
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