If f(x) and r1(x) are inverse functions of each other and f(x)=2x+5 , what is f^-1(8) ?

PLEASE HELP!!

Answers

Answer 1

Answer:

3/2

Step-by-step explanation:

Given y = 2x + 5, let's rewrite the equation in terms of x;

y = 2x + 5 => Bring 5 to the other side

2x = y - 5 => Divide either side by 2

x = (y - 5)/2

If we want to take the inverse, simply swap the variable's positions...

We have y = (x - 5)/2

Now let's determine f^-1(8), substituting for "y" provided y is our inverse, f^-1

f^-1(8) = (8 - 5)/2 = 3/2

Solution: 3/2


Related Questions

2. Hanna made 5 hit out of 13 during her first baseball game. What percentage of hits did she make?
A. 50% B. 38% C. 18% D. 31%

Answers

Answer:

B. 38%

Explanation:

Given parameters:

Number of hits = 5hit

Total hits = 13

Unknown:

Percentage of hits shed made = ?

Solution;

The percentage of hit made = [tex]\frac{number of hits }{Total hits}[/tex] x 100

input the parameters and solve;

        Percentage of hit made = [tex]\frac{5}{13} x 100[/tex]

       Percentage of hit = 38%

Percentage of hit = 38%

below will be 8 questions identifying like terms please help


identify the like terms -3a 2b 6ab 1 a

A. 1,a

B.-3a 2b 6ab

C.-3a 2b

D.-3a a

combine the like terms -3c +5c

A. 8c

B.-2c

C.-8c

D.2c

combine the like terms 3y - y + 6y

A.10y

B.8y

C.9y - y

D.2y

simplify the expression by combining any like terms 2a + 3 - 5a +8b

A.8b

B. 7a + 3 +8b

C.-3a + 3 +8b

D.5a +13b

simplify the expression by combining any like terms 6a + rs -4a + 6rs

A.2a +7rs

B.9rs

C.10a + 7rs

D.2a + 6rs

simplify using distributive property3(x+2) =

A.3x + 3

B.3x +6

C.3x +2

D.x +6

simplify using distributive property 6 (y-8) =

A.6y + 48

B.6y - 48

C.6y - 8

D.y - 48

simplify using distributive property 2a + 4 (a+5) - 7

A. 4a + 20

B.6a - 2

C.4a -13

D.6a +13

please help

Answers

like terms are things that are the same such as 1a and 2a, they share the same variable. so for question 1, the like terms would be B.

the second one is basically just adding them, so it’s kinda just -3+5. so your answer for number two is 2c.

the third one is very similar to the second one, it’s basically just 3-1+6. the answer to the third one is 8y.

the fourth one is also similar, you need to add like terms. so you need to look at the problem and add the a’s together since there are no other like terms found in the expression. so the simplified problem is -3a+3+8b.

same thing like 4 you need to look for like terms so the simplified expression is 2a+7rs

just distribute the 3 to all of them so like 3 times x and 3 times 2 so it’s 3x+6

same thing 6y-48

ok this one is a little different but mostly the same concept so 2a+4a+20-7 6a+13

there you go hope i helped

how can you find the number halfway between 123 and 321? ​

Answers

Add them togetherr then divide it

Answer:

222

Step-by-step explanation:

Find the average of the 2 numbers , that is

average = [tex]\frac{sum}{count}[/tex] = [tex]\frac{123+321}{2}[/tex] = [tex]\frac{444}{2}[/tex] = 222

The school store marks up the price of all items by 30% before selling to
the community. If the store purchases sandals for $50.25, what will be th
price of the sandals after markup? Use a proportion to solve this problem

Answers

Answer:

$65.325 or $65.33

Step-by-step explanation:

When looking for a percentage in a number, you want to multiply that number by the percentage. Remember that all percentages are to the hundreth power, or 0.00. So if you want to find 30% of 50.25, you multiply it by 0.30 or 0.3. After calculating that you will come up with 15.075 as the percentage. Since the store is marking the price up, you add it to the original price. So your equation is 50.25 + 15.075 =?. After calculating that, you get the answer 65.325. That is only half of your answer though because, when dealing with money, you always round to the nearest hundredth. So when you round 65.325, you get 65.33 which should be the correct answer.

Drag each label to the correct location on the graph.Not all labels will be used.

I’ll cashapp whoever knows the right answer 30 dollars .

Answers

Step-by-step explanation:

I'd 5603642259 password is 123456 join meeting on zoom

Help help help help help

Answers

Answer:

how how how how how how how

The black graph is the graph of y = f(x). Choose the equation for the red graph. A. y + 4 = f(x) B. y - 4 = f(x) C. y = f(x - 4) D. y = f(x + 4)​

Answers

The equation is m4-m77=m99

The right equation of the red line will be f(x)=y-4 if the equation of the black line is f(x)=y

What is the equation?

The equation is like a relationship between variables.

What is a variable?

A variable is anything which have a value.

How to form an equation?

If we see the points of red line and the lack line we can see the value of x in black line is 4 greater than red line so the equation will be

f(x)=y-4 for the red line for the given equation of the lack line which is f(x)=y

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I need help like rn plzzzz Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie. c(x) = 2.00x + 0.50 c(x) = 2.00 + 0.50x c(x) = 2.50x c(x) = (2.00 + 0.50)x

Answers

Answer: c(x) = 2.00 + 0.50x

Step-by-step explanation:

Since they already charged her $2.00 leave that alone. They charge her .50 per night, x represents the number of nights she rented the movie. thus the answer is c(x) = 2.00 + 0.50x.

What is 3 y + 5 x = negative 15 written in slope-intercept form?

Answers

Answer:

The answer would be y=-5/3x-5!

Step-by-step explanation:

You want to make the equation to y=mx+b, so you have to make y by its self. Subtract 5x from both sides and you'll get 3y=-5x-15. Now divide 3 by both sides and you'll get y=-5/3x-5 which would be the answer!

Answer:

y=(-5/3)x-5

Step-by-step explanation:

so the slope intersect form is y=mx+b

3y+5x=-15

subtract 5x from both sides

3y= -5x-15

divide both sides by 3

y= (-5/3)x - 5

Solve the equation. 1 2 = 11 2​

Answers

No solution because they don’t equal eachother

Mario walked 7422 steps one day then he walks 5570 stops the next day. which calculation can be used to find the total number of steps Mario walked two days

Answers

Answer:

A caucluation he can use is adding, just add 7422 and  5570 and you should get your answer.

Step-by-step explanation:

Mario walked total 12992 steps.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Mario walked 7422 steps one day

and, he walks 5570 stops the next day.

So, the total number of steps

= 7422 + 5570

= 12992 steps

Hence, Mario walked total 12992 steps.

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Combine the following and write in standard form.
(7 + 5) + (-6 - 81)

Answers

Answer:

without exponents its -75 since i thought those last 2 were exponents.

What is the value of the expression 12 x (-1.6)

Answers

Answer: -19.2

Step-by-step explanation:

Which fraction is equivalent to this decimal?
0.16 repeating
A. 1/16
B. 16/100
C. 1/6
D. 1/3

Answers

Answer: B

16/100 = 0.16

0.16 is 16/100 exactly.

1/16 = 0.000625

1/6 = 16.666...

1/3 = 33.33...

So, the answer is 16/100.

Hope this helps!

The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.

What is an equivalent expression?

The equivalent is the expression that is in different forms but is equal to the same value.

The decimal number is the sum of a whole number and part of the fraction number. The fraction number is greater than zero but less than one.

The decimal number is given below.

⇒ 0.16

The fraction is equivalent to the decimal number 0.16 will be

Multiply and divide the number by 100. Then the fraction number will be

⇒ 0.16 x 100 / 100

⇒ 16 / 100

The fraction is equivalent to the decimal number 0.16 will be 16/100. Then the correct option is B.

More about the equivalent link is given below.

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Select the equivalent expression.

Answers

Answer:

B

Step by step explanation:

Y3 becomes y×3=u3

25 becomes 2×5=10=

Y3-10 squared=

Y3-210

The value of 26 – 16 divided by 2+3•4 is
30
32
06
22
PLEASE HELP!!!!!!

Answers

Answer:

30.

Step-by-step explanation:

The least common multiple of two numbers is 24. Which could be the two numbers?
6 and 8
4 and 6
8 and 16
4 and 12

Answers

Answer:

a

Step-by-step explanation:

Answer:

A=6 and 8

Step-by-step explanation:

Hope it is correct

3. Each month, Arnold receives $1,050 for working part-time at his uncle's camera store.
For each camera that he sells, he earns a $125 bonus. Which equation can be used to
find Arnold's total monthly paycheck, P(x), based on the number of cameras that he
sells, x?

Answers

Answer:

$1,050*125x=P(x). I just need more characters.

Step-by-step explanation:

The equation that represents Arnold's total monthly paycheck is

P(x) = 125x + 1050.

What is a function?

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, Each month, Arnold receives $1,050 for working part-time at his uncle's camera store so it is a constant income.

For each camera that he sells, he earns a $125 bonus.

Let P(x) be the monthly check and no. of cameras sold be x.

∴  Arnold's total monthly paycheck P(x) selling x cameras is,

P(x) = 125x + 1050.

learn more about functions here :

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There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4. There are 180 students at Winthrop Middle School, where the ratio of boys to girls is 4:5. The two schools hold a dance and all students from both schools attend. What fraction of the students at the dance are girls?

Answers

Given:

Total number of students at Colfax Middle School = 270

Ratio of boys to girls is 5:4.

Total number of students at Winthrop Middle School = 180

Ratio of boys to girls is 4:5.

The two schools hold a dance and all students from both schools attend.

To find:

The fraction of the students at the dance are girls

Solution:

There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4.

[tex]5+4=9[/tex]

Number of boys [tex]=270\times \dfrac{5}{9}=150[/tex]

Number of girls [tex]=270\times \dfrac{4}{9}=120[/tex]

There are 180 students at Winthrop Middle School, where the ratio of boys to girls is 4:5.

[tex]4+5=9[/tex]

Number of boys [tex]=180\times \dfrac{4}{9}=80[/tex]

Number of girls [tex]=180\times \dfrac{5}{9}=100[/tex]

Now,

Total number of students in both schools [tex]= 270+180[/tex]

                                                                [tex]= 450[/tex]

Total number of girls in both schools [tex]= 120+100[/tex]

                                                         [tex]= 220[/tex]

The fraction of the students at the dance are girls is

[tex]\text{Required fraction}=\dfrac{\text{Total number of girls in both schools}}{\text{Total number of students in both schools}}[/tex]

[tex]\text{Required fraction}=\dfrac{220}{450}[/tex]

[tex]\text{Required fraction}=\dfrac{22}{45}[/tex]

Therefore, the required fraction is [tex]\dfrac{22}{45}[/tex].                                

Name a Transversal.
Helpppp?

Answers

"I" is the transversal because a transversal is a line going through 2 lines in the same plane at two distinct points.

what is 7,200 increased by 22%

Answers

22% of 7,200 is 1,584
It is 8,784

√-90=ai√b what is the value of a and b?

Answers

Answer:

what is this topic in math?

Need help!

Classify the following numbers as rational
2/3
3.1415926535...
0
Squared 1
7.4(bar over 4)
15
Squared 3

Which numbers are rational? Select all that apply!

Also can you identify which are irrational too?
That would be a great help.
Select all that apply!

<3 ASAP if u can!

Answers

Rational numbers: B C D G
Irrational numbers: A E F
Irrational numbers are numbers that cannot be written as fractions, rational numbers are all other numbers

Which of the following points represents a number that is both rational and an integer?

Answers

Answer:

Where a and b are both integers. Example. The number 4 is an integer as well as a rational number. As it can ... Which of these rational numbers are integers?

Step-by-step explanation:

It costs a flat rate of $35 for you to rent the ovens for as many hours as you want. You charge $29 per birthday cake. Your total costs is $470. Write and solve an equation to find how many birthday cakes were made.

Answers

470 = 29x+35

(x is number of birthday cakes)

subtract 35 from both sides,

435 = 29x

divide both sides by 29 to get x by itself,

15 = x

15 birthday cakes were made!

Answer:

35+29x=470 x=15 cakes

Step-by-step explanation:

3 35 represents rate for the oven and then 29 dollars per cake is the 29. 470 is the total amount of money you spent you just have to solve the equation from then to get x equals 15

Solve. -7x + 29 = 6 (8+3x)

Answers

Answer:

Hi there

Your answer is

x = -.76 OR -19/25

Step-by-step explanation:

-7x +29 = 6(8+3x)

-7x +29 = 48 + 18x

-18x

-25x +29 = 48

-29

-25x = 19

/-25

x = -.76 OR -19/25

Answer:

x=-19/25 or x=-0.76

When making a batch of cookies, the recipe calls for 1 cup of sugar and 2 cups of flour. What is the
ratio of sugar to flour in the cookies? i need help ASAP !

Answers

Answer:

1/2

Step-by-step explanation:

x = y, If y=9, then x = 9

what property is this?

Answers

Answer:

The Transitive Property for x and y

Step-by-step explanation:

a student on cross country team runs 30 minutes a day as a part of her

Answers

Answer:

Part of her?

Step-by-step explanation:

What..-?

In the figure, m∠2 = 70. Find the measure of each angle.

Answers

Answer:

35 is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

1-     angle number 3 is 70

2-    angle number 5 is 110

3-    angle number 8 is 110

4-    angle number 1 is 110

5-    angle number 4 is 110

6-    anle number 6 is 70

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