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2 years ago

Given f(x) = 5x - 7 and g(x) = x² - 3, find f(f(2)).

Mathematics

1 answer:

sveta [45]2 years ago

4 0

Step-by-step explanation:

Given f(x) = 5x - 7 and g(x) = x² - 3, find f(f(2))

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If (fx)=5x, what is f^-1(x)

zysi [14]

Answer:

x/5

Step-by-step explanation:

To get the inverse function you need to leave the x alone and then switch variables ( f(x) = y)

f(x) = 5x

y = 5x

y/5 = x

Now that x is alone you switch the x for y and the y for x and you get:

x/5 = y

And this new y is the inverse function of f(x) ( f^-1(x))

f^-1(x) = x/5

6 0

3 years ago

B. The school prom committee sold presale tickets for

Ivan

Answer:

218 students purchased tickets at the dance.

Step-by-step explanation:

Let,

x be the number of presale tickets

y be the number of tickets sold at the dance

According to given statement;

x+y=334 Eqn 1

18x+24y=7320 Eqn 2

Multiplying Eqn 1 by 18

18(x+y=334)

18x+18y=6012 Eqn 3

Subtracting Eqn 3 from Eqn 2

(18x+24y)-(18x+18y)=7320-6012

18x+24y-18x-18y=1308

6y=1308

$\frac{6y}{6}=\frac{1308}{6}\\y=218$

Therefore,

218 students purchased tickets at the dance.

5 0

2 years ago

I NEED AN ANSWER NOW ASAP

babunello [35]

Answer:

Apparently i cant see the photo im am so sorry but do need pints.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What value or values of x satisfy 2|x+5.3|=4.2

exis [7]

We have, /x+5.3/ = 2.1;
Then, x + 5.3 = 2.1 or x + 5.3 = -2.1;
x = 2.1 - 5.3; x = -3.2;
x = -2.1-5.3; x = -7.4;
The correct answer is c.

4 0

2 years ago

Read 2 more answers

It is greater than 43 and less then 52 if you add the digits the sum is 8

Ksenya-84 [330]

44 is the answer 4+4=8

3 0

3 years ago