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BlackZzzverrR [31]
3 years ago
5

Which function has an inverse that’s also a function?

Mathematics
2 answers:
leva [86]3 years ago
7 0
Inverse of a function is also a function, if and only if the function is One - to - One. This means no y value occurs in the range of the function more than once. 

If we observe the given options, we can see option  B, C and D have some repeated values of y. Only the function in option A is one to one. Hence the inverse of function given in option A will also be a function.

So, the answer to this question is option A
alukav5142 [94]3 years ago
3 0

Answer:a

Step-by-step explanation:

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35,600 is 8.3% of what number
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This question can be solved by:
\frac{8.3}{100} =  \frac{35,600}{x}

Cross multiply to get: 8.3x = 3,560,000

To let the x stand along (since you are finding the x value), divide 8.3 to both sides of the equal sign.

\frac{8.3x}{8.3} =  \frac{3560000}{8.3}

Simplify to get the answer.
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4. The ratio of skateboards to bikes is 3:1.
vredina [299]

Answer:

D

Step-by-step explanation:

3 represents skateboards and 1 represents bikes. We need to get from 3 to 12 and 1 to the answer by using the same number you used to get from 3 to 12.

To get from 3 to 12 you multiply by 4

3*4=12

So let's go ahead and multiply 1 by 4 as well

1*4=4

Your ratio is now 12:4 and 4 stands for bikes so there are 4 bikes

8 0
3 years ago
Read 2 more answers
5x 2 +5x x 2 −1 ​ What is an equivalent expression in lowest terms?
arsen [322]

Answer:

Step-by-step explanation:

Explanation:

Start by writing out your starting expression

x

2

−

5

x

2

+

5

x

−

14

−

x

+

3

x

+

7

Next, factor the denominator of the first fraction

x

2

+

5

x

−

14

x

2

+

7

x

−

2

x

−

14

x

(

x

−

2

)

+

7

(

x

−

2

)

(

x

−

2

)

(

x

+

7

)

Your expression is thus equivalent to

x

2

−

5

(

x

−

2

)

⋅

(

x

+

7

)

−

x

+

3

x

+

7

Since you have to subtract two fractions, you need to find the commonon denominator first. To do that, multiply the second fraction by  

x

−

2

x

−

2

x

2

−

5

(

x

−

2

)

⋅

(

x

+

7

)

−

(

x

+

3

)

⋅

(

x

−

2

)

(

x

−

2

)

⋅

(

x

+

7

)

This will get you

x

2

−

5

−

(

x

+

3

)

(

x

−

2

)

(

x

−

2

)

(

x

+

7

)

x

2

−

5

−

x

2

−

x

+

6

(

x

−

2

)

(

x

+

7

)

=

1

−

x

(

x

−

2

)

(

x

+

7

)

5 0
2 years ago
How many different committees of 3 men and 4 women can be formed from 6 men and 8 women?
Mademuasel [1]
2 committees. 6 is divisible by 3 twice, 8 is divisible by 4 twice.
3 0
3 years ago
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