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2 years ago

For which function is f(x) not equal to f-1(x)? (NEED THIS TO GRADUATE)

1 answer:

6 0

The answer would be: D. f(x)=2x
The f-1(x) is also called as an inverse function. To find the inverse function, you just need to switch the y variable with the x variable. The inverse function of f(x)=2x would be
y=2x
x'=2y'
y'= 1/2 x'

The inverse function is different with f(x)

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#7. What are the values/ how do I do it

Tasya [4]

Answer:

x =2

SK = 21

KY = 13

SY = 34

Step-by-step explanation:

we can see from the picture the following:

SK + KY = SY equation 1

SK=13x-5 equation 2

KY = 2x+9 equation 3

SY = 36-x equation 4

using equation 2, equation 3 and equation 4 in equation 1 we have:

13x - 5 + 2x + 9 = 36-x

15x +4 = 36 - x

15x +x = 36-4

16x = 32

x = 32/16

x= 2

using x as 2 we evaluate it in equation 2, equation 3 and equation 4:

SK=13(2)-5 = 21

KY= 2(2) +9 = 13

SY = 36-2 = 34

5 0

3 years ago

Each person will eat 2/3 of a pound of Turkey and 8 people will be at party how many pounds of turkey will be needed

Lelechka [254]

Each person 2/3 pounds of turkey

Since you need the amount for 8 people you multiply 8 times 2/3

8/ 2/. =. 16/ = 5 with 1/3
1. Times 3 3

5 with 1/3 pounds of turkey will be needed

8 0

3 years ago

Jack received $300 for his 13th birthday. If he saves it in a bank account with 8% interest compounded yearly, how much money wi

kari74 [83]

300(1.08)^5

440.798423

7 0

3 years ago

Expand and simplify these 6 questions

zhuklara [117]

First one: divide multiply 2(1x) which would equal 2x then do 2*3 then u would subtract 5 which should get you to the simplified form 2x+1

Second one: do 3(1x) which would equal 3x then do 7*3 which would equal 21 than do plus 3x which should get you to the simplified form of 6x+21

Third one: Do 4(1x) which equals 4x than do 4*2 which equals 8 than plus eight which should get you to the simplest form of 4x+16

Fourth one: do 4(1x) which would equal 4x then do 4*1 which equals 4 than subtract 6 which should get you to the simplest form of 4x-2

Fifth one: do 2(3x) which equals 6x then do 2*2 which equals 4 than subtract 5x which should get you to the simplest form of x+4

Sixth one: do 5(1x) which equals 5x than do 5*-4 which equals -20 than add 10 which gets you to the simplest form of 5x-10

3 0

2 years ago

The value of sqroot -4 is not -2 because

masha68 [24]

I’m pretty sure the answer is b! hope this helps!!

4 0

2 years ago