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damaskus [11]
3 years ago
13

If fx) and f^-1(x) and inverse functions of each other and f(x) =2x+5, what is f^-1(8)?

Mathematics
1 answer:
Dvinal [7]3 years ago
6 0
I’m guessing he answer is a
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Fill in the blanks below in order to justify whether or not the mapping shown
Fantom [35]

Let's start with the fact that this is a function.  Each element of Set A is paired with exactly one element of Set B.

This makes Set A the set of inputs and Set B the set of outputs.

There are a lot of other boxes to pick from, so I'm not sure what else you'd need to pick to make your answer correct.

6 0
3 years ago
Without solving, NO SOLUTION describes which equation?
CaHeK987 [17]

Answer:

The equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

Step-by-step explanation:

a)

6a = 9a

subtract 9a from both sides

6a - 9a = 9a - 9a

-3a = 0

divide both sides by -3

-3a / -3 = 0/-3

Simplify

a = 0

b)

5x = 28

divide both sides by 5

5x/5 = 28/5

x = 28/5

c)

y = y + 1

subtract y from both sides

y - y = y+1-y

0 = 1

These sides are not equal, so

NO SOLUTION!

d)

y + 5 = 12

subtract 5 from both sides

y + 5 - 5 = 12 - 5

y = 7

Conclusion:

Therefore, the equation 'y = y + 1' represents NO SOLUTION.

Hence, option 'C' is true.

5 0
3 years ago
Read 2 more answers
40% of the children in a sports club play badminton. 25% of the children who play badminton also play squash. There are 11 child
Keith_Richards [23]

Answer:

There are 110 children total in the sports club

Step-by-step explanation:

To get this answer, its actually easier than it seems. You might need a calculator however.

First you start with the 11 children who play both badminton and squash, then, you divide that by 0.25 (25%) to get 44.

Next you take 44 and divide it by 0.4 (40%) to get 110.

And there you go! If you want to make sure you got it right simply start with 110 and multiply it by 0.4 then multiply the number/decimal you get by 0.25. You should get 11 to confirm your answer :)

6 0
4 years ago
How to didvide6 divided by 8,654
Lelechka [254]

Answer: 0.0007

Step-by-step explanation:

6/8654

3 0
3 years ago
Three companies sell their apple juice in different sized bottles jada is calculating the unit prices of each bottle and will co
kati45 [8]
The answer is dividing each bottle size by its cost I took the test and I got it right <span>
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4 0
3 years ago
Read 3 more answers
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