2. Determine whether the two functions are inverses.
f (x) = 1/2 x-3
g(x)= 2x+6

please help

2. Determine Whether The Two Functions Are Inverses.f (x) = 1/2 X-3g(x)= 2x+6please Help

Answers

Answer 1

Answer:

The two functions are inverses.

Step-by-step explanation:

Recall what an inverse is:

When you inverse an equation, like y = 2x for example, you switch, the y and x values. So you'd now have x = 2y, then x/2 = y.

In a case like that we'd say that, y = 2x, and y = x/2 are inverses of each other.

Now looking at your question, all we'd need to do is take the inverse of 1, and see if it matches up with the other one. So pick a function. I'll choose g(x) and I'll inverse it.

[tex]g(x) = y = 2x + 6[/tex]

get rid of the g(x), as it doesn't help you anymore.

[tex]y = 2x + 6[/tex]

then, switch the x and the y.

[tex]x = 2y + 6[/tex]

then isolate for y.

[tex]x - 6 = 2y[/tex]

[tex]\frac{x-6}{2} = y[/tex]

Now let's see, does [tex]f(x) = \frac{1}{2}x - 3[/tex] equal [tex]\frac{x-6}{2}[/tex] ? Well actually yes.

We just didn't simplify all the way.

[tex]\frac{x-6}{2} = y\\[/tex]

divide each term by 2

[tex]\frac{x}{2} - 3 = y[/tex]

[tex]\frac{x}{2}[/tex] can be written as [tex]\frac{1}{2}x[/tex] so we get

[tex]\frac{1}{2}x - 3[/tex] which is equal to f(x)

Therefore the 2 functions are inverses.

Q.E.D


Related Questions

Please answer ASAP! I am very confused. Please explain steps if possible.

Answers

Answer:

943 exponent 14

Step-by-step explanation:

The question deals with indices(exponents). Therefore,all laws of indices related to the question must be applied to clearly solve and understand the question.

so,(943 exponent 78 · 943 exponent 1)/943 exponent 65

· means multiplication so simply,(943 exponent 78 × 943 exponent 1)/943 exponent 65

The laws of indices clearly state that, when two indices of the same base are multiplying, you add their exponents and when dividing,you subtract their exponents.

As all the indices have the same base which is "943", we can quickly add & subtract the exponents.

(Leaving base out of calculation now to make it easier to directly deal with exponents)

(78+1)-65(From the rules)

79-65=14,which means 943 exponent 14

∴The answer is 943 exponent 14

Find the measure of the arc or angle indicated

Answers

Answer:

D) 130

Step-by-step explanation:

So there are three arc sections in this problem,

The first one is given: 158

To find the arc between S and R, you can use the angle of point T and double it.

So:

36 * 2 = 72

The second arc is 72

Now for the one that they want you to find, you have to add the two arcs that you have and substract it from 360, which is the angle of a whole circle

Like so:

360 - (158 + 72) = 130

Answer:

130

Step-by-step explanation:

Luz borrowed
money from her bank for home repairs, the principal was $25,000, the rate
was 15% the time was 6 years. How
much interest will she pay and what is the total amount she will have to
pay back? (Principal and interest).

Answers

The total amount accrued, principal plus interest, from simple interest on a principal of $25,000.00 at a rate of 15% per year for 6 years is $47,500.00.

Answer:

I =  $22,500.00

A = $47,500.00

Simple interest

Given Data

Principal = $25000

Rate = 15%

Time = 6 years

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 15%/100 = 0.15 per year.

Solving our equation:

A = 25000(1 + (0.15 × 6)) = 47500

A = $47,500.00

I = A - P = $22,500.00

Learn more about simple interest here:

https://brainly.com/question/20690803

Model this equation using a visual model.
4x + 8.46 = 2x + 15.62

Answers

I will clarify you
Soln:-
Or,4x-2x=15.62-8.46
Or,2x=7.16
Or,x=7.16/2
Or,x=3.58

help me!!Write a function using correct notation that models the value of each car.

Answers

Answer:

[tex]f(x) = 2000 * 1.05^x[/tex]

Step-by-step explanation:

The key to this question is interpreting the graph and then modelling it into an exponential function.

You are given 2 key characteristics of this graph. 1 characteristic being that it intercepts the y-axis at (0,2000), and another characteristic being that it goes through the point (1,2100)

Now refer to the standard form of an exponential function.

[tex]y = a * b^x[/tex]

Since you know that when x = 0, y = 2000, a must be 2000. Because [tex]b^0 = 1[/tex], 2000 * 1 = 2000

So you got your a value. Sub it into the equation and now you got.

[tex]y = 2000 * b^x[/tex]

You still need to solve for b, so this is where you do some algebra. Pick your key point, (1,2100), sub in those values for x and y, and solve for b.

[tex]2100 = 2000 * b^1\\\frac{2100}{2000} = b\\ 1.05 = b[/tex]

Now you have your a and b values. Now you can express using a function:

[tex]f(x) = 2000 * 1.05^x[/tex]

It is given that AB CD Identify the postulate that proves the triangles are congruent

Answers

Answer:

i can't see the multiple choice

Step-by-step explanation:

angle c and b are equal

angle a and d are equal

and you have a common angle o

and ab = cd

The triangles ΔAOB and ΔDOC are congruent to each other by SSS and SAS postulates. Then the correct option is A.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

The ratio of the matching sides will remain constant if two triangles are comparable to one another.

It is given that AB || CD. The side AB is congruent to the side CD.

The line AD and BC intersect at the mid-point. Then the line segment AO and OD will be congruent and the line segment CO and OB will be congruent.

And the angle ∠AOB and ∠COD will be congruent because they are vertically opposite angles.

The triangles ΔAOB and ΔDOC are congruent to each other by SSS and SAS postulates. Then the correct option is A.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ2

Which property can be used to solve the equation?

5 d = 75
addition property of equality
subtraction property of equality
multiplication property of equality
division property of equality

Answers

Answer:

Division property of equality

Step-by-step explanation:

If you have an equation with the variable not equal to one you want it to equal one so you would divide to get the variable to 1 so 5/5 and then you would do the same to the other side(75/5) d=15.

Answer:Division property of equality

Step-by-step explanation:If you have an equation with the variable not equal to one you want it to equal one so you would divide to get the variable to 1 so 5/5 and then you would do the same to the other side(75/5) d=15.

Determine the solution to each linear system by using the substitution method
3x+y=8
6x+2y=10

Answers

Answer:

No solution.

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

3x+y=8 and 6x+2y=10

3x+y=8

x=8-y/3

Solve.

Rewrite the problem down.

6*8-y/3+2y=10

Then, solve.

16=10

Therefore, the final answer is no solution.

I hope this helps you! Let me know if my answer is wrong or not.

There are 19 students in the class today 14 are absent. How many students are in class total? Draw a tape diagram that would represent this scenario. Solve X

Answers

Answer:

5

Step-by-step explanation:

19-14=5

for the Tape diagram just make 19 boxes and fill in 5.

Mike is building storage boxes. Each box will have a length of 5 feet, a width of 412 feet, and a height of 312 feet. A pint of paint covers 50 square feet.

How many pints of paint does Mike need to buy in order to paint 4 boxes?

9 pints
7 pints
6 pints
5 pints

Answers

The pints of paint that Mike needs to buy in order to paint 4 boxes is 9 pints.



How many pints is needed?


The first step is determine the total surface area of a box.


Total surface area of a cuboid = 2 (lw + wh + lh)


where:
l = length
w = width
h = height


2 x[ (5 x 9/2) + (9/2 x 7/2) + (5 x 7/2) ]
2 x ( 45/2 + 63/4 + 35/2) = 111.5ft


The second step is to determine the total surface area of 4 boxes:


111.5 x 4 = 446


Now, divide 446 by 50


446 / 50 = 9 pints

Answer:

Step-by-step explanation:

The question contains typos as I believe the boxes should be 5x4.2x3.2 in dimensions instead.

Assuming that and all 6 faces of each storage boxes will be painted, the surface area of each box is:

= (5*4.2*2) + (4.2*3.2*2) + (3.2*5*2)

= 100.88 square feet

4 boxes will have a total surface area of

100.88*4

= 403.52 square feet

Each pint of paint covers 50 square feet so a total of

403.52/50 = 8.07 or

9 pints is needed.

NEED ANSWERS QUICKLY! CORRECT ANSWER GETS BRAINLIEST
Write a division problem such that the quotient is the same as 3/7 divided by 5/14


.

Answers

Answer:

6 6

---- ÷ ---

16 10

Step-by-step explanation:

equals 5/8

help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Febuary 10th because on the left colom it showss the dates just look for the 10

Can someone solve this?

Answers

Step-by-step explanation:

First box =25

Second Box = 0.25

In which quadrant does θ lie given that sinθ < 0 and cosθ < 0? Thank You!

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

Answers

Answer:

Quadrant III.

Step-by-step explanation:

u said the answer :3

The quadrant that θ lies given that sinθ < 0 and cosθ > 0 will be Quadrant IV

What are trigonometric identities?

Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.

we need to first know the signs of the trigonometric functions in each of the 4 quadrants going in an anti-clockwise direction.

In the first quadrant, the cot, sin, cos and tan are all positive.

In the second quadrant going anti-clockwise, only sine is positive.

In the third quadrant going anti-clockwise, only tangent is positive.

In the fourth quadrant going anti-clockwise, only cosine is positive.

We are told that the

sinθ < 0 and cos θ > 0.

This means that sine is negative and cosine is positive.

Looking at the rule, it is clear that the angle is in the fourth quadrant.

Read more about quadrant signs of trigonometric functions at;

brainly.com/question/12380695

#SPJ2

jimmy has 27 apples and there are 9 houses. he feeds the same number of apples to each horses. how many apples dose jimmy feed to each horse?

Answers

-------------------------------------------------------------------------------------------------------------

Answer:

The answer is, Jimmy, fed the horses 3 apples each.

27 apples divided into the 9 horses

27 ÷ 9 = 3

If you had 27 seven apples and you individually gave one apple to each of the 9 horses each horse would end up having 3.
-------------------------------------------------------------------------------------------------------------

Toni typed 600 words in 1hour, 250 words in 20 minutes and 480 words in 40minutes. How many words did Toni typed in 2 hours?


a 1 113 words

b 3 113 words

c 1 330 words

d 1 130 words

Answers

1hour=600

2hour=600+600

=1200words

can I get help with this please

Answers

Answer:

10d or less

Step-by-step explanation:

Joanne would want $50 left, and she has $250. 20 - 50 is 200. 20 goes into 100 5 times.

20 goes into 200 10 times. You just add five. (20, 40, 60, 80, 100)

If she wants at least $50 left, she would have to limit how many Dvd's she buys to 10 or less.

Hi I have been working on this for hours and I still can't figure out what 23x3 is I would really be thankful if you can help me.
Thanks!

Answers

The answer to your question is 69

Triangle PQR is shown, what is the value of x?

Answers

Answer:X = 13

Step-by-step explanation:

An exterior angle is equal to the sum of the two opposite interior angle

⇒95=4x+3 + 3x+ 1

95=4x + 3x + 3 + 1

95=7x + 4

95-4=7x

91=7x

91/7=x

13=x

This implies that X= 13

What is the area of the quadrilateral

Answers

Answer:

Or you could also find the area of 2 triangles and one rectangle.

Area of a triangle = bh/2

1st triangle = 6 x 2 = 12

12 ÷2 = 6

2nd triangle = 6x2= 12 ÷ 2 = 6

Area of a rectangle

A=bh

b = 4

h= 6

6x4=24

Now add all the areas to find out the area of the shape, so

6+6+24 =

[tex]36 {ft}^{2} [/tex]

The are 3 blue marbles, 4 red marbles and 2 yellow marbles. Find the ratio of blue marbles to red and yellow marbles.

Question 2 options:

4:3


3:4


3:2

1:2

Answers

Step-by-step explanation:

3 blue

4 red

2 yellow

in total 9 marbles.

when looking at the 3 blue marbles that leaves 9-3 = 6 others (red and yellow).

so, the ratio is

3:6 = 1:2

remember, a ratio is a fraction and follows the same rules of calculation, simplification, ...

What is the center and radius of the circle given by x2 + y2 - 10x - 12y + 24 = 0?​

Answers

Answer:

centre (5, 6 ) , r = [tex]\sqrt{37}[/tex]

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r the radius

given

x² + y² - 10x - 12y + 24 = 0 ( collect x and y terms together and subtract 24 from both sides )

x² - 10x + y² - 12y = - 24

using the method of completing the square

add ( half the coefficient of the x / y terms)² to both sides

x² + 2(- 5)x + 25 + y² + 2(- 6)y + 36 = - 24 + 25 + 36

(x - 5)² + (y - 6)² = 37 ← in standard form

with centre (h, k ) = (5, 6 ) and r = [tex]\sqrt{37}[/tex]

What is the area and circumference of the circle? diameter = 12 cm​

Answers

Answer:

Circumference = 7.68 cm

Area = 113.04 cm²

Step-by-step explanation:

First, let us find the radius of the given circle.

d = 2r

r = d / 2

r = 12 / 2

r = 6 cm

And now, let us find the circumference of the circle using the below formula.

C = 2 π r

C = 2 × 3.14 × 6

C = 37.68 cm

And now let us find the area of the circle using the below formula.

A = π r²

A = 3.14 × 6 × 6

A = 113.04 cm²

Why didn't the physics teacher marry the biology teacher

Answers

Answer: There wasn't chemistry in them?

XD I dunno ._.       >w<

Here are the endpoints of the segments BC, FG, and JK.
B, −67

Answers

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ B(\stackrel{x_1}{-6}~,~\stackrel{y_1}{7})\qquad C(\stackrel{x_2}{-4}~,~\stackrel{y_2}{4})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ BC=\sqrt{[-4 - (-6)]^2 + [4 - 7]^2}\implies BC=\sqrt{(-4+6)^2+(-3)^2} \\\\\\ BC=\sqrt{2^2+(-3)^2}\implies \boxed{BC=\sqrt{13}} \\\\[-0.35em] ~\dotfill\\\\ ~~~~~~~~~~~~\textit{distance between 2 points}[/tex]

[tex]F(\stackrel{x_1}{-2}~,~\stackrel{y_1}{-4})\qquad G(\stackrel{x_2}{1}~,~\stackrel{y_2}{-2})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ FG=\sqrt{[1 - (-2)]^2 + [-2 - (-4)]^2}\implies FG=\sqrt{(1+2)^2+(-2+4)^2} \\\\\\ FG=\sqrt{9+4}\implies \boxed{FG=\sqrt{13}} \\\\[-0.35em] ~\dotfill\\\\ ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ J(\stackrel{x_1}{4}~,~\stackrel{y_1}{2})\qquad K(\stackrel{x_2}{5}~,~\stackrel{y_2}{-2})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}[/tex]

[tex]JK=\sqrt{[5 - 4]^2 + [-2 - 2]^2}\implies JK=\sqrt{1^2+(-4)^2}\implies \boxed{JK=\sqrt{17}} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \overline{BC}\cong \overline{FG}~\hfill[/tex]

After measuring the heights of 7 people, they have an average height of 156cm. after
measuring the heights of 8 people they have an average height of 158cm. how tall is
the 8th person?

Answers

Answer:

8th Person = 172 cm tall

Step-by-step explanation:

( a + b + c + d + e + f + g )/7 = 156

a + b + c + d + e + f + g = 1092 total size

----------------------------------------------------------

now they measured 8 people (a + b... g) + h, but we know the total size of the other 7 = 1092

a + b + c + d + e + f + g + h

( 1092 + h )/8 = 158

1092 + h = 158*8

h =  1264 - 1092

h = 172

-----------------------------------

the 8th person is 172 cm tall

Charles buys 60 packs of pens.
There are 14 pens in each pack.
Each pack costs £4.50.
Charles sells each pen for 70p but he only manages to sell
2
3
of the pens.
How much profit did he make?

Answers

Answer:

£122

Step-by-step explanation:

Total no. of pens :- 60× 14= 840

Cost of all pens :- £270

Total no. of pens sold :- 560

Cost of those pens :- £392

Profit = £122

Charles made a profit of  £122, By selling (2/3)rd of his pens.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Charles buys 60 packs of pens and there are 14 pens in each pack.

If each pack costs £4.50.

So, The Total cost is,

=  £(60×4.50).

=  £270.

The total number of pens is,

= (14×60).

= 840, And he manages to sell (2/3) of it which is,

= (2/3)×840.

= 560.

Now, The total money made by him is,

= 540×0.7.

=  £392.

Therefore, The profit he made is  £(392 - 270) =  £122.

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ7

please help me i need to solve for x

Answers

Answer:

1.732i (complex form)

its weird, at high-school level complex shouldn't come, its considered mistake in the question. But the mathematically its all correct

Step-by-step explanation:

help please :) help ​

Answers

Answer:

6

Step-by-step explanation:

4 time one is 1

plug in 1 for m

and you got 4 - -2

witch both negatives make a positive

What is 3/5 1/2 because my answer is 7/10 and my teacher said it's wrong

Answers

Answer:

If you want to multiply then,

3/5 × 1/2 = 3/10 or 0.3

If you want to Add then,

3/5 + 1/2 = 6 + 5/5 × 2 = 11/10 or 1.1

If you want to subtract then,

3/5 – 1/2 = 6 – 5/5 × 2 = 1/10 or 0.1

If you want to Divide then,

3/5 ÷ 1/2 = 3/5 × 2/1 = 6/5

Other Questions
What is 1/3 of 9/5 cookies? The point (3, 4) is on a circle with a center (1, 4). Find the radius of the circle.Write the standard equation of the circle. Graph the circle. What started world war 2?Help (x+2)(x+7) Write in simplified form Express as in Kg using decimals.a) 12 g. b) 7 g. c) 35 kg 15 g. d) 675 g It is important for a therapist to develop a trusting bond with clients in order for treatment to be effective. please select the best answer from the choices provided t f 1. What is the intention behind Walker's artwork?to shock peopleto educate people about another time, place, and cultureto educate people about social etiquetteto offend people2. What subject matter does Walker address in Slavery! Slavery!?feminismcivil rightsracial stereotypes economic success3. How does Walker's color scheme in Slavery! Slavery! influence cultural understanding? 4. How does Walker's work influence cultural understanding?She uses historical facts and images to represent the past treatment of African Americans from their perspective. She uses collage to highlight Native American culture and customs. She uses images to show historical connections between Jewish culture and customs. She changes the viewers' perspectives by making them use their own imaginations. 5. How does Walker communicate her meaning and theme to the viewer?through the use of photographythrough the use of oil paintingsthrough the use of silhouettesthrough the use of shadows Consider the following recursive method. public static string recur(int val) { string dig = "" + (val % 3); if (val / 3 > 0) return dig + recur(val / 3); return dig; } what is printed as a result of executing the following statement? system.out.println(recur(32)); what is the equation of the following graph? Which of the following claims does the excerpt make about changes that occurred as a result of new interactions in the atlantic regionAnswer:B Europrans developed new methods of conducting trade and making profit. If the sum of the 8th & 9th terms of an arithmetic progression is 72 and the 4th term is -6. Find the common difference. If the market price is above or equal to the average cost, but below the average cost the firm should keep producing in the run even though it does so at a(n) help me please this'll cost me half of my gradeThe map shows four bodies of water. The graph shows the area of these bodies of water. Question 1. Identify the units that should be used for the area of these bodies of water.Question 2. Use the map to identify which body of water (A, B, C, or D) matches bar 3, and explain your answer.Question 3. Explain what type of water(fresh or salt) is most likely in these bodies of water.I'll put a picture of the map and the graph Choose the correct graph of the function y=-1/2x+3+2 A flat coil of wire has an inductance of 40. 0 mh and a resistance of 6. 00 . It is connected to a 21. 2-v battery at the instant t = 0. Consider the moment when the current is 2. 50 a A jeepney has an original speed of 30 m/s and a final speed of 40 m/s. Compute itsacceleration if the time of travel is 10 seconds. An individual suffers a blood clot in an artery that delivers blood to his leg. The leg begins to take on a blue hue, becomes colder than the rest of his body and he experiences numbness in the leg. He is most likely experiencing. Which statements accurately describe mechanical waves? Check all that apply.A. Energy is transferred through vibrating particles.B. A mechanical wave does not carry energy through matter.C. A longitudinal wave is a type of mechanical wave.D. A transverse wave is a type of mechanical wave.E. An ocean wave moving through water is an example of a mechanical wave.Answers:A.C.D.E.I already did thisEdge 2022 Step-by-step explanation: Is (5, 5) a solution to the equation y=x ? A manufacturer packages coffee beans in 50 kg cartons with an allowable error of 0.7%. what is the acceptable weight range for a carton of coffee beans?select the answers from the drop-down lists to correctly complete the sentence.the acceptable weight of the cartons ranges from kg to kg.