What is the inverse function of this equation

What Is The Inverse Function Of This Equation

Answers

Answer 1

Answer:

y=7x+8

then interchange x and y

x=7y+8

then

x-8=7y

y=X-8/7


Related Questions

PLEASE HELP FAST I ONLY HAVE ONE HOUR!!!!!

Answers

The type of model that would be the most appropriate would be the exponential model: An exponential model is appropriate because the relationship between days and the natural log of views is linear, and the residual plot does not show a clear pattern.

What is an exponential model?

This is the term that is used to refer to the process that is known to show a growth that is double its rate of growth. That is, it is used to show that there is the existence of a speed up in the rate at which the data is growing and it would follow a particular patter. This can be shown as:  y = ab^x.

What is a scatterplot?

This is the term that is used to show the graphical representation that is done by showing the existing relationship that exists between two variables in a graph. That would be the x variable and the y variable.

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The castle tower has a height of 14 m. Work out the height of the tree.​

Answers

Because the height are in proportion, a possible value of the height of the tree is 70 m

How to determine the possible height of the tree?

The complete question is added as an attachment

The given parameters from the question are given as:

Height of the castle tower = 14 metersHeight of the tree = unknown

In the above expression, we have the following observations:

The heights are not equalThe heights are in proportion

From the figure, we can see  that the height of the tree is about 5 times the height of the castle tower

This is represented as

Height of the tree = k * Height of the castle tower

Where

Scale factor, k = 5

Substitute the known values in the above equation

So, we have

Height of the tree = 5 * 14 m

Evaluate the products

So, we have

Height of the tree = 70 m

Hence, the possible height of the tree is 70 m

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Answer:

Step-by-step explanation:

You have 2 positive numbers. One number is one-fifth of the other number. The difference between the two numbers is 308, find the numbers. PLEASE HELP

Answers

Answer:

[tex]77, 385[/tex]

Step-by-step explanation:

Start by writing the equations in symbolic form. I will represent one number with an x and the other with a y.

One number is one-fifth of the other number:

[tex]x=\frac{1}{5}y[/tex]

The difference between the two numbers is 308:

[tex]y-x=308[/tex]

This difference is positive, therefore I am assuming that y is the larger number. In the first equation, I made x a part of y, so this should check out.

Now we have a system of equations:

[tex]\left \{ {{x=\frac{1}{5}y } \atop {y-x=308}} \right.[/tex]

I will rewrite the first equation for simplicity:

[tex]5x=y[/tex]

Now, I will substitute y from the first equation for y in the second equation:

[tex]5x-x=308[/tex]

Simplify:

[tex]4x=308\\x=77[/tex]

Now, use x to find y using the second equation:

[tex]y-77=308\\y=385[/tex]

Now, I can check the solutions by plugging them into the first equation!

[tex]x=\frac{1}{5}y\\ 77=\frac{1}{5}(385)\\77=77[/tex]

The solution is correct!

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $110 per hour. The mechanics worked for a combined total of 25 hours, and together they charged a total of $2200. How long did each mechanic work?

Answers

Answer:

25 Hours

Step-by-step explanation:

It says it in the text

Which function is positive for the entire interval [–3, –2]? On a coordinate plane, a curved line with a minimum value of (0, negative 3) crosses the x-axis at (negative 3, 0) and (3, 0), and crosses the y-axis at (0, negative 3). On a coordinate plane, a curved line with a minimum value of (2, negative 3) crosses the x-axis at (negative 1, 0) and (5, 0), and crosses the y-axis at (0, negative 1.5). On a coordinate plane, a curved line with a minimum value of (2, 4) and a maximum value of (0.5, 6), crosses the x-axis at (negative 1.5, 0) and crosses the y-axis at (0, 5). On a coordinate plane, a curved line with a minimum value of (negative 1.75, negative 3.9) and a maximum value of (0, 2), crosses the x-axis at (negative 2.2, 0), (negative 0.75, 0), and (0.75, 0), and crosses the y-axis at (0, 2).

Answers

The function that is positive for the entire interval [-3,-2] is given by:

On a coordinate plane, a curved line with a minimum value of (2, negative 3) crosses the x-axis at (negative 1, 0) and (5, 0), and crosses the y-axis at (0, negative 1.5).

When a function is positive and when it is negative?

We have to look at the graph of the function relative to the x-axis, as follows:

A function is positive when it is above the x-axis.A function is negative when it is below the x-axis.

The graphs for this function are given at the end of the answer, and the only function for which it is positive, that is, above the x-axis, in the entire interval [-3,-2] is the second, hence the correct option is:

On a coordinate plane, a curved line with a minimum value of (2, negative 3) crosses the x-axis at (negative 1, 0) and (5, 0), and crosses the y-axis at (0, negative 1.5).

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Analyze the diagram below and complete the instructions that follow.

Answers

Applying the triangle proportionality theorem, the value of x and the value of y are:

C. y = 5, x = 10.

How to Apply the Triangle Proportionality Theorem?

Since lines m and n are said to be parallel lines, therefore, according to the triangle proportionality theorem, the ratios below can be created.

4/12 = y/15 [proportional sides]

Cross multiply

(y)(12) = (4)(15)

12y = 60

Divide both sides by 12

12y/12 = 60/12

y = 5

x = 15 - y

Plug in the value of y

x = 15 - 5

x = 10

Thus, applying the triangle proportionality theorem, the value of x and the value of y are:

C. y = 5, x = 10.

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Question 1 (1 point)
A triangle with the coordinates listed below is reflected across the x-axis. What are
the new coordinates?
A(5,-2) B(0, 3) C(-4,1)
A(5,-2) B(0, -3) C(-4,1)
A'(5, 2) B'(0, -3) C'(-4,-1)
A(-5, -2) B(0, 3) C(4, 1)
A(-5, 2) B(0, -3) C(4, -1).

Answers

The reflection of the triangle gives the co-ordinates A'(5, 2) B'(0, -3) C'(-4,-1) .

In mathematics, a reflection is a mapping from a Euclidean space to itself that is an isometry with a set of fixed points known as the hyperplane; this set is also known as plane of reflection or the axis. The mirror image of a figure in the axis or plane of reflection is the image produced by a reflection.

When an object is reflected across the x -axis , the image will be at same distance from the x axis as the object or point is on the cartesian plane.

So if a point P has the co-ordinates (x , y) .  When reflected across the x-axis the the reflection has the co-ordinates P'(x , -y ) .

The co-ordinates of the 3 points are A(5,-2) B(0, 3) C(-4,1).

When reflected across the x-axis the co-ordinates become :

A(5,-2) →A'(5,2)

B(0, 3)→B'(0,-3)

C(-4,1)→C'(-4,-1)

Hence the second option is correct, the reflected image of the triangle has the coordinates  A'(5, 2) B'(0, -3) C'(-4,-1) .

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PLEASE HELP FAST I ONLY HAVE ONE HOUR!!!!!!!!

Answers

The residual plot represents a linear model because (a) there is no clear pattern

How to determine the if the residual plot represents a linear model?

The given parameters are:

The graph

The table

For a residual plot to represent a linear model, the following must be true

The points on the residual plot must be randomly dispersed on the plot

This means that all residual plots that have random points are linear models

From the attached graph, we can see that the points on the graph are randomly dispersed

Hence, the residual plot represents a linear model because (a) there is no clear pattern

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Solve the following inequality algebraically.
x²-16x +60 ≥ 0

Answers

Answer:

[tex] \sf \large \: x≤6 \: or \: x≥10[/tex]

Step-by-step explanation:

Let's solve your inequality step-by-step.

x2−16x+60≥0

Let's find the critical points of the inequality.

x2−16x+60=0

(x−6)(x−10)=0(Factor left side of equation)

x−6=0 or x−10=0(Set factors equal to 0)

x=6 or x=10

Check intervals in between critical points. (Test values in the intervals to see if they work.)

x≤6(Works in original inequality)

6≤x≤10(Doesn't work in original inequality)

x≥10(Works in original inequality)

Write 98 as the product of prime factors. Write the prime factors in ascending order.​

Answers

Step-by-step explanation:

2 × 7 × 7.................

Graduation gift of $5,000 image that you are able to average 2.5% interest on the principal.
1. How much (simple) interest will you receive on your savings after one year?

Answers

[tex]~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$5000\\ r=rate\to 2.5\%\to \frac{2.5}{100}\dotfill &0.025\\ t=years\dotfill &1 \end{cases} \\\\\\ I = (5000)(0.025)(1) \implies I = 125[/tex]

Divide the polynomials.
Your answer should be a polynomial.
x²-16
/
x+4

Answers

Answer:

x - 4

Step-by-step explanation:

The quickest way to do this is to Factor and "cancel". (Cancelling is not a mathematical term--it really is dividing)

x^2 - 16 is the difference of two squares. Its super-beneficial to recognize a difference of two squares and its factored form:

(x - 4)(x + 4)

Now you have:

(x - 4 )(x + 4) / x+4

The x+4 term "cancels" and you end up with x-4 as your answer.

You could also do this division problem using long division or synthetic division. You will get the same answer.

The point (-2,8) is on the graph of y=f (x), which point must be on the graph of y=-f(x)

Answers

The point on the graph y = -f(x) is (-2 , -8)

According to the question the coordinates we have been given is (-2 , 8) and it is on the graph y = f(x)

That is we have been given that

                f(-2) = 8            (1)

Now we have to find the point on the graph y = -f(x)

So we will choose the value of x = -2 in f(x)

 Thus, putting the required value we get

                y = - f(-2)

As the value of f(-2) is 8 from equation (1). we will equate the value in the above equation we get

               y = -(8)

               y = -8

Hence the point on the graph is (-2 , -8)

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18. The length of a rectangle is 7 cm more than the width. The perimeter is 78 cm. Find the rectangle's dimensions. What would be the formula to solve this? ​

Answers

The length of the rectangle is 21 cm and the width is 16 cm.

What is a rectangle?

A rectangle is a quadrilateral having four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree angles.

The perimeter of the rectangle is defined as the sum of all the sides of the rectangle.

The formula to calculate the perimeter is,

P = 2 ( L + W)

Here

P  = Perimeter

L  = length of the rectangle

W = Width of rectangle

Given that the length of a rectangle is 7 cm more than the width. The perimeter is 78 cm.

The equations can be formed as,

L = 7 + W

P = 2(L+W)

78 = 2 ( 7  + W + W )

39 = 7 + 2W

W = 32/2

W = 16 cm

L = 7 + W

L = 7 + 16 = 21 cm

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(9x+5) + (5x+9) in simplest term

Answers

Answer:

14x+14

Step-by-step explanation:

9x+5+5x+9

=9x+5+5x+9

=(9x+5x)+(5+9)

=14x+14

3 in
4 in
2 in What is the area of the shape?

Answers

15in^2 i believe (might not be tho) you did partition the shape “correctly” or the best way in my opinion

Paula knit knot hats. The number of hats h she can knit varies directly with the amount of yarn y in yards she has. The constant of proportionality is 42. Interpret the meaning of the point (378,9)

Answers

The meaning of the point (378,9) is with 9 yards of yarn, Paula can knit 378 knot hats.

Given that:-

The number of hats h she can knit varies directly with the amount of yarn y in yards she has.

Also, the constant of proportionality is 42.

Hence, we can write,

h ∝ y

h = ky

where, k is the constant of proportionality, hence,

h = 42y

We have to interpret the meaning of  (378, 9).

From, the equation, h = 42y

We can observe that,

When y = 9

h = 42*9 = 378.

Hence, we can write that, the meaning of the point (378,9) is with 9 yards of yarn, Paula can knit 378 knot hats.

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The figure on the right is a scaled copy of the figure on the left.

Answers

Answer:

Yes si true

Step-by-step explanation:

If you analyze the figures you will realize that they are the same, the size differentiates it but they have the same angles.

70 POINTS Find the slope of the line pictured in the graph

-2
2
-1/2
1/2

Answers

The slope of the line passing through the coordinates (0, 0) and (6, 3) is 1/2

Slope of a line

The formula for calculating the slope of a line is expressed according to the equations:

Slope = y₂-y₁/x₂-x₁

Using the coordinate points (0, 0) and (6, 3) on the line. On substituting, we will have;

Slope = 3-0/6-0

Slope = 3/6

Simplify

Slope =1/2

Hence the slope of the line passing through the coordinates (0, 0) and (6, 3) is 1/2

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What integer would be added to 15 to result in a sum of zero​

Answers

Answer:

0+15 =15

Step-by-step explanation:

it is said that the sum should have a 0

K
ZRQT is a straight angle. What are mZRQS and
mZTQS?
mZRQS=
mZTQS=
ICCEID
R
30% /
(15x + 1)º
(10x + 4)º

Answers

Answer:

m∠RQS = 106°m∠TQS = 74°

===============================

Use angle addition postulate:

m∠RQT = m∠RQS + m∠TQS

Substitute the values and solve for x:

180 = 15x + 1 + 10x + 4180 = 25x + 5175 = 25xx = 175/25x = 7

Find the angle measures:

m∠RQS = 15*7 + 1 = 106m∠TQS = 10*7 + 4 = 74

please help me to understand thid Q

Answers

Answer:

True statements are 4 and 5

Step-by-step explanation:

This s basically using set theory to evaluate line segments

The union of two(or more) sets is the set of elements that are in either or both sets.

Here is an example
If set A = {1, 2, 3, 4} and set B = {3, 4, 5, 6} then
A ∪ B = (1, 2, 3, 4, 5, 6}
Note that there cannot be any duplicates in a set

We have to treat the line segments as sets  to solve this problem.

For easier explanation, I am going to view each segment as having points which I am labeling 1, 2, 3 etc.

The individual independent line segments are JL, LM, MN, and NT, basically each is a set of the points that comprise each segment

You have to visualize each of these line segments as being comprised of these points.

Note that these are distinct sets ie there is  no common point when we consider the above 4 sets

Let set
JL have the points {1, 2, 3} we say JL = {1, 2, 3}

LM = {4, 5}

MN = {6, 7}

NT = {8, 9}

We see that there are no common points between each of the four sets below

1. JL ∪ MN = set of points that lie in JL or MN or both. Since JL and MN are distinct sets, the union of these two sets is s
JL U MN = {1, 2, 3} U {5, 6} = {1, 2, 3, 5, 6} . However, JM contains all the points from J to M which is {1, 2, 3, 4, 5} which is not the same as JL U MN

So Statement 1 is false

2. JL U MN = {1, 2, 3} U {6, 7} = {1, 2, 3, 6, 7} so it contains more points than MN{6, 7} and therefore Statement 2 is false

3. LM U LN
We can see that LN contains all the points in LM and MN = {4, 5, 6, 7}. LM U LN = {4, 5} U { 4, 5, 6, 7} = {4, 5, 6, 7}. But LM is only a subset of LN and has fewer points {4, 5}  so Statement 3 is false

4. LM U LN
LM = {4, 5}, LN = {4, 5, 6, 7} so LM U LN = {4, 5, 6, 7} = LN. Remember sets don't duplicate. So Statement 4 is True

5. NT U JT
NT = {8, 9} and JT = set of all points in the segment from J to T which is all the points. So JT = {1, 2, 3, 4, 5, 6, 7, 8, 9} and NT U JT = {1, 2, 3, 4, 5, 6, 7, 8, 9} which is the set of all points in JT. Therefore Statement 5 is True

The figure below shows a graphical representation of what I wrote above. If you look at LN for instance, it has 4 points {4, 5, 6, 7} and therefore represents all the points in LM and LN (without duplication of points). This is Statement 4, by the way

Find the distance between points A = (2, 0) and
B= (0, 9). Round your answer to the nearest tenth.
Show your work

Answers

Answer:

  9.2

Step-by-step explanation:

You want the distance between A(2, 0) and B(0, 9).

Distance

The distance formula is based on the Pythagorean theorem. It tells you the distance between (x1, y1) and (x2, y2) is ...

  d = √((x2 -x1)² +(y2 -y1)²)

For the given points, this becomes ...

  d = √((0 -2)² +(9 -0)²) = √(4+81) = √85

  d ≈ 9.2

The distance between A and B is about 9.2 units.

find the probability of a point chosen at random being in the shaded area of the diagram at the right

Answers

Answer: 1/9

Step-by-step explanation:

The area of the shaded region is [tex](4/2)^2 \pi =4\pi[/tex]

The area of the entire circle is [tex](6)^2 \pi=36\pi[/tex]

So, the probability is [tex]\frac{4\pi}{36\pi}=1/9[/tex]

1 + ((-2 / 3) - ((-9 / 2)

Answers

4.83 is your final answer.

Find the slope of the lined graph

Answers

The slope of the lined graph is 5 / 3

How to determine the slope

The formula for determining the slope of a line is expressed as;

Slope = y2 - y1/ x2 - x1

From the graph shown;

y1 = -1y2 = 4x2 = 3x1 = 0

Now, let's substitute the values

Slope, m = 4 - (-1) / 3 - 0

Find the differences

Slope, m = 4 + 1/ 3

Slope, m = 5 / 3

Thus, the slope of the lined graph is 5 / 3

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How Much Money Did The Movie Theater Get? PLS ANSWER FAST I GIVE BRAINLIEST

Movie a costs 4 dollars

Movie b costs 5 dollars

Movie theater got 200 dollars and sold 47 ticket

How many tickets did movie a sell

Answers

Solving a system of equations, we conclude that 35 tickets for movie a were sold

How many tickets did movie a sell?

Let's define the variables:

x = tickets of movie a sold.y = tickets of movie b sold.

Here we know that a total of 47 tickets were sold, then:

x + y = 47

And they sold for a total of $200, then:

x*$4 + y*$5 = $200

So we have a system of equations:

x + y = 47

x*$4 + y*$5 = $200

We want to solve this for x, then we need to isolate the variable y in one of the equations, doing that in the first one we get:

y = 47 - x

Now we can replace that in the other equation to get:

x*$4 + (47 - x)*$5 = $200

x*$4 + $235 - x*$5 = $200

$235 - x*$1 = $200

$235 - $200 = x*$1

$35 = x*$1

$35/$1 = x = 35

This means that 35 tickets for the movie a were sold.

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Date
11. Write the fraction below as a decimal rounded
to the nearest hundredth.
25
7

Answers

Answer:

3.57

Step-by-step explanation:

25/7 is the same as 25÷7 which is 3.57

HELPPPPPPOOOOOOPOOOOOOOOOOOPPPPPPPPPPPPPPPPPPPPPPPPOOOOOO

Answers

Answer:

In standars form it would look like so:

28,936

In expanded form it would look like so:

20,000 + 8,000 + 900 + 30 + 6

Step-by-step explanation:

Your welcome! Hope it helps! =D

In standard form 28936

In expended form 20000+8000+900+30+6

If Zendaya travels $5 and 3/7 of a mile in 3 hours on her roller skates. How far will she
travel in 1 hour?
1 and 17/21 miles per hour
7/114 miles per hour
114/7 miles per hour
16 and 2/7 miles per hour

Answers

Zendaya will travel $ 1 and 17/21  of a mile per hour on her roller skates.

Zendaya travels $5 and 3/7 of a mile in 3 hours on her roller skates. We can simply write this statement in mathematical form as,

Total distance covered by Zendaya in 3 hours on her roller skates = $( 5 + ( 3/7 )  of a mile

Total distance covered by Zendaya in 3 hours on her roller skates = $ ( ( 35 + 3)/7 ) of a mile

Total distance covered by Zendaya in 3 hours on her roller skates = $ ( 38/7 )

Total distance covered by Zendaya in 1 hours on her roller skates = $ (( 38/7 )/3 ) = $ (38/21) of a mile

or we can write also write  ( 38 /21 ) miles per hour as ( 1 and 17/21 ) miles per hour.

So, Zendaya will travel $ 1 and 17/21  of a mile per hour on her roller skates.

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