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3 years ago

If f(x) = 1/2x-14,then f^-1(x)=

Mathematics

2 answers:

Contact [7]3 years ago

5 0

The answer to your problem would be F ^-1 (x) = 2x + 28

Alik [6]3 years ago

4 0

Answer:

f ^-1 (x) = 2x+28

Step-by-step explanation:

f(x) = 1/2x-14

Replace f(x) with y

y = 1/2 x -14

Exchange x and y

x = 1/2 y -14

Solve for y

Add 14 to each side

x+14 = 1/2 y -14+14

x+14 = 1/2 y

Multiply each side by 2

2(x+14)= 1/2 y*2

2x+28 = y

The inverse function is

f ^-1 (x) = 2x+28

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Factor the polynomials 2x4+4x3+6x2?

Shalnov [3]

Answer:x^2+2x+3

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3 years ago

Which products result in a perfect square trinomial? Select three options.

Kazeer [188]

Answer:

Second option: $(xy+x)(xy+x)$

Third option: $(2x-3)(-3+2x)$

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Step-by-step explanation:

By definition, a perfect square trinomial can be obtained by squaring binomials.

Then:

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Knowing this, to obtain a perfect square trinomial, the binomials that you multiply must be equals.

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3 years ago

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The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew

Nesterboy [21]

Answer:

£910

Step-by-step explanation:

let 3x and 7x be the initial amounts in their accounts, then after alterations

Terry has 3x + 220

Faye has 7x - 300

After these changes the amounts are equal, hence

7x - 300 = 3x + 220 ( subtract 3x from both sides )

4x - 300 = 220 ( add 300 to both sides )

4x = 520 ( divide both sides by 4 )

x = 130

Faye initially had 7 × £130 = £910 in her account

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3 years ago