how can exponential and logarithmic functions be created to use in real world situations?

Answers

Answer 1
In realistic world there are so many examples which use exponential and logarithmic functions.

Use of Logarithmic function
We can find use of logarithmic function in measuring earthquake (Richter Scale) , the brightness of stars , and chemistry(pH balance , measure of acidity and alkalinity)

For example:
In Richter Scale , a logarithmic function that is used to measure the magnitude of earthquake.
If A = measure of amplitude of earthquake wave.
[tex]A_o[/tex] = Amplitude of smallest detectable wave.
From this we can find R the Richter scale measure of magnitude of earthquake.
[tex]R = log \frac{A}{A_o} [/tex]

Use of Exponential Function:

Exponential function may use in finding compound interest , population growth , radioactivity decay , etc.

For example :
As we know the formula for compound interest is
[tex]A = P(1+ \frac{r}{n})^{nt} [/tex]
Where P is principal amount , r = rate of interest(decimal) , n is the number of compounding period , t is time.

For

Related Questions

$1,100 at 8%, for 15 years, compounded annually. Total Amount = $ Interest Amount = $

Answers

The formula to find the total amount is
A=p (1+r)^t
A future value?
P present value 1100
R interest rate 0.08
T time 15 years
A=1,100×(1+0.08)^(15)
A=3,489.39

To find the interest amount the formula is
I=A-p
I=3,489.39−1,100
I=2,389.39

Final answer:

Compound interest plays a crucial role in determining the final amount of an investment over time, showcasing the power of compounding. In this scenario, with an initial amount of $1,000, an interest rate of 10.1%, and 47 years of compounding annually, the total interest earned would be $91,045.80.

Explanation:

Compound interest is calculated on the principal amount plus the interest earned over time. In this case, with an initial amount of $1,000, an interest rate of 10.1% compounded annually, and an end amount of $92,045.80 after 47 years, compound interest plays a significant role in determining the final amount.

To calculate the total interest earned over the 47 years, you subtract the initial principal amount of $1,000 from the end amount of $92,045.80. This gives you the total interest earned. In this scenario, the total interest earned would be $92,045.80 - $1,000 = $91,045.80.

Compound interest is crucial in understanding how investments grow over time, and it showcases the power of compounding when money is invested wisely and for a long period.

Make a frequency distribution and find the relative frequencies for the following number set. Round the relative frequency to the nearest tenth of a percent. Some of the answers will be used more than once and some may not be used.

10 30 40 50 60 70
10 30 40 60 60 80
20 30 50 60 70 90
20 30 50 60 70 90
Number Frequency Relative Frequency
10 %
20 %
30 %
40 %
50 %
60 %
70 %
80 %
90 %

Answers

number......frequency.....relative frequency
10                  2                    2/24 = 8.3%
20                  2                    2/24 = 8.3%
30                  4                    4/24 = 16.7%
40                  2                    2/24 = 8.3%
50                  3                    3/24 = 12.5%
60                  5                    5/24 = 20.8%
70                  3                    3/24 = 12.5%
80                  1                    1/24 = 4.2%
90                  2                    2/24 = 8.3%
total :           24

Julie is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour. When the number of hours (h) that Julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (A) that Julie earns in dollars is . If Julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is . 

Answers

A = 210 + 20(h - 7) <== ur equation

if she earns 410 tutoring...
410 = 210 + 20(h - 7)
410 = 210 + 20h - 140
410 = 20h + 70
410 - 70 = 20h
340 = 20h
340/20 = h
17 = h <=== she spent 17 hrs tutoring

Answer:

box 1- A=210+20(h-7) box 2- 17

Step-by-step explanation:

I got it right on plato, watch out for positive and negative answers i almost got it wrong

two adjacent sides of a rhombus are represented by 5x + 7 and 6x -1. find the value of x

Answers

The value of x is 8.........

The value of x in equation 5x + 7 = 6x -1 is 8.

What is a linear equation?

A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.

We are given that;

5x + 7 and 6x -1

Now,

The equation is:

5x + 7 = 6x - 1

To solve for x, we need to isolate x on one side of the equation. We can do this by subtracting 5x from both sides and adding 1 to both sides. This gives us:

5x + 7 - 5x = 6x - 1 - 5x

7 + 1 = x - 1 + 1

8 = x

Therefore, by the given equations the answer will be x = 8.

Learn more about linear equations;

https://brainly.com/question/10413253

#SPJ2

Solve by factoring: 8p2 - 64p = 0

Answers

You begin with moving all terms to the left side and set them equal to zero. Then you set each factor equal to zero and you should come out with p= 0,8

Color of car. a. Qualitative/Ordinal b. Qualitative/Nominal c. Quantitative/Discrete d. Quantitative/Continuous

Answers

Colors are Qualitative and Nominal: Qualitative, because there is no number involved for "color" and Nominal, because their is no natural ordering for color

All I know is it's not B.

Answers

I believe the correct answer here would be C. 258. When applying the remainder theorem, you must look at it as a fraction and solve it as such.

Thompson Alberts purchased a pack of 12 pencils for $4.99. What is the unit price per pencil rounded to the nearest tenth of a cent?

Answers

divide total coast by number of pieces

4.99/12 = 0.415833

rounded to 0.42

42 cents each

$0.416

This is the correct answer for primavera

$4.99/12=0.4158 Rounded to the nearest tenth of a cent is $0.416

Help a brother out here! Thank you!!!

Answers

7 blue cards

26 total cards

 probability = 7/26

The pie store is having a 15% percent off sale on all of its pies. If the pie you want regularly costs $11 how much would you save with the discount?

Answers

15% of $11 = 11×0.15 = 1.65

We would have saved $1.65 on the pie

Suzie drew the line of best fit on the scatter plot shown. A graph is shown with scale along x axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 15 at increments of 1. The ordered pairs 0, 3 and 1, 3 and 2, 4 and 3, 7 and 4, 6 and 5, 8 and 6, 10 and 7, 10 and 8, 12 and 9, 14 and 10, 15 are shown on the graph. A straight line joins the ordered pairs 0, 3 and 10, 15. What is the approximate equation of this line of best fit in slope-intercept form?

Answers

Answer:

y = 1.2 x + 3

Step-by-step explanation:

Hope this helps

Assume that y varies inversely with x. If y=7 when x=2/3, find y when x=7/3

Answers

When y varies inversely with x, we have [tex]y= \frac{k}{x} [/tex]

We first find the value of k

When y = 7 and x = 2/3, then

[tex]y= \frac{k}{x} [/tex]
[tex]7= \frac{k}{ \frac{2}{3} } [/tex]
[tex]7( \frac{2}{3})=k [/tex]
[tex]k= \frac{14}{3} [/tex]

Now we have k = 14/3, we can work out y when x = 7/3

[tex]y= \frac{k}{x} [/tex]
[tex]y= \frac{14/3}{7/3} [/tex]
[tex]y= \frac{14}{7} [/tex]
[tex]y=2[/tex]

Say you want to buy x shirts which cost 2$ each and add tax which is $0.75. You have 13$ to make your purchase.

Answers

EDIT: 
2x + 0.75 = 13
Add like terms
2x= 13-0.75
2x= 12.25
x= 12.25/2
x=6.125
You can buy 6 whole shirts with $0.25 left over

Hope this helps! A thanks/brainliest answer would be appreciated :)

How can you prove that a constructed line is parallel to a given line? assume that the transversal line is not perpendicular to the other lines?

Answers

Final answer:

To prove that a line is parallel to another, one usually shows that two lines cut by a transversal have either congruent corresponding angles or alternate interior angles. In the lack of perpendicular transversal or angle knowledge, projecting lines onto a new coordinate system can show matching slopes to confirm parallelism.

Explanation:

In mathematics, proving that a constructed line is parallel to a given line typically involves showing that the lines do not intersect and have the same slope or use a parallel postulate. The most common method is taking two lines l and m and a transversal t. If the corresponding angles or alternate interior angles created by t are congruent, then l and m are parallel.

For example: If line l and line m are cut by a transversal t and the corresponding angles (∠1 and ∠2) are congruent, then lines l and m are parallel. The same can be said if the alternate interior angles are congruent.

In some cases, if the transversal line is not perpendicular and we do not know about corresponding or alternate interior angles, we can establish a different coordinate system, project the lines onto the x-axis and y-axis, and show that they have the same slope which proves them to be parallel.

Learn more about Parallel Lines here:

https://brainly.com/question/29762825

#SPJ12

10 POINTS PLEAAAAAASE HELP

Answers

it is graph b. look below
I believe the answer would be graph B. This is because we can see that the value inside the parenthesis is between 0 and 1, which means it is decreasing exponentially (because it has an exponent). We can plug in 0 for x, and see that the y intercept has to be 6, so this leaves us with graphs A, B, and C. Now we can see that graph A makes absolutely no sense, it doesn't show a graph of an exponential function and really isn't even a graph. I mean it does look like it is the bottom of a quadratic, but still. Anyway, this leaves us with graphs B and C. Now as we know the graph is an exponential decrease. This means that as x increases, y should decrease. We can see this happening in graph B. Hope this helps. Feel free to ask more questions, or ask questions about my explanation.

Use the graph below to answer the question.


What is the slope of a line that is perpendicular to the line in the graph?

Answers

(0,0)(-3,3)
slope = 3/-3 = -1
slope of a line that is perpendicular to the line in the graph = 1

answer
1

Answer:

Im working on it right now and its 1

Step-by-step explanation:

Joel is laying pipe for a sprinkler system before he plants his lawn. The lawn is a rectangle, 15 feet long and 8 feet wide. He needs to lay a piece of pipe that will be run along the diagonal of the lawn. It will divide the area of the lawn into two right triangles. What will be the length of that diagonal piece of pipe?

Answers

Using Pythagorean Theorem, you can find that the diagonal pipe would have to be 17 feet long to bisect the yard. sqrt(8^2+15^2)=17
Hey!

So, we will have to use the Pythagorean Theorem in order to find the length of the pipe that will be run along the diagonal of the lawn. So, this theorem states that,
[tex]a^2+b^2=c^2[/tex]
Let's plug in the values.
[tex]15^2+8^2=c^2[/tex]
Simplify.
[tex]289=c^2[/tex]
Let's take the square root.
[tex] \sqrt{289} = \sqrt{c^2} [/tex]
Simplify.
[tex]17 ft=c[/tex]

This tells us that the length of the diagonal piece of pipe will be 17 feet. 

Thanks!
-TetraFish

The function H(t) = −16t2 + 60t + 95 shows the height H(t), in feet, of a projectile after t seconds. A second object moves in the air along a path represented by g(t) = 20 + 38.7t, where g(t) is the height, in feet, of the object from the ground at time t seconds. Part A: Create a table using integers 1 through 4 for the 2 functions. Between what 2 seconds is the solution to H(t) = g(t) located? How do you know? (6 points) Part B: Explain what the solution from Part A means in the context of the problem. (4 points) (10 points)

Answers

We are given the functions:

h(t) = -16t^2 + 60t + 95

g(t) = 20 + 38.7t

Part A. All we have to do is to plug in the value of t = 1 to 4 on the two functions

t               h(t)          g(t)

1              139         58.7

2              151         97.4

3              131         136.1

4              79           174.8

Looking at the table, we can say that the time when h(t)=g(t) must be between t=2 and t= 3 seconds
At t=2 seconds h(t) is above g(t), and at t = 3 seconds h(t) is below g(t). Therefore the two functions must be at the same height in between.

 

Part B. The solution in Part A gives us the exact time where the two objects have the same height. Further, we can see from the table that h(t) is decreasing meaning the projectile is going down while g(t) is increasing so the other projectile is going up.

 

What is the volume of the sphere? Round the answer to the nearest cubic unit. Diameter: 22 cm

1) 507 cm^3
2) 1,394 cm^3
3) 5,575 cm^3
4) 16,725 cm^3

Answers

The formula for calculating the volume of a sphere is 4/3pir^3 in this problem we are given the diameter which is 22 cm we only need rhe radius so take half of the diameter, which is 11 cm. Plug rhe radius into the equation.
4/3pi11^3 and approximately simplify you will get 5,575 cm^3.

The volume of the Sphere is  5,575 cm^3.

What is the volume of  the Sphere ?

The volume of the  Sphere  is the capacity it has. It is the space occupied by the sphere.

Formula used to find volume of  the Sphere is :

V = 4/3 × π × r^3

Given : diameter = 22 cm

r = diameter/2  

r = 11 cm

So ,

V = 4/3 × π  × 11 ^3

⇒ 4/3  × π ×  1331

⇒  1.34 × 4179.34

V = 5575.28 cm^3

The nearest cubic unit  is 5,575 cm^3.

Hence , the  volume of the Sphere is  5,575 cm^3 .

Learn more about the volume of the Sphere here :

brainly.com/question/21623450?

#tag #SPJ2

If the correlation between two variables is .496, how much of the variance has not been accounted for

Answers

If the correlation between two variables is .496, it has 24.6 percent (24.6%) of the variance that has not been accounted for.  Hence, correlation is a statistical technique that is used to measure and describe the strength and direction of the relationship between two variables and 24.6% has not been accounted for the two variables which is .496.

Final answer:

About 75.40% of the variance between two variables with a correlation coefficient of .496 is unaccounted for, as it is the complement of the coefficient of determination (24.60%) obtained by squaring the correlation coefficient.

Explanation:

To determine the amount of variance not accounted for by the correlation between two variables with a correlation coefficient of .496, we must use the coefficient of determination. The coefficient of determination is the square of the correlation coefficient (r₂), which represents the proportion of the variance for the dependent variable that's explained by an independent variable in a regression model.

First, we calculate r₂:
.4962 = .246016, or approximately 24.60%. This means that about 24.60% of the variance in the dependent variable is explained by the independent variable.

Next, we find the unexplained variance by subtracting r₂ from 1:
1 - .246016 = .753984, or approximately 75.40%. Therefore, 75.40% of the variance has not been accounted for by the correlation.

What is the rule for the sequence with the first four terms below? 0.5, 0.25, 0, –0.25

Answers

The rule for the given sequence (0.5, 0.25, 0, -0.25) is to subtract 0.25 from the previous term. Each consecutive term decreases by 0.25 to form the sequence.

The sequence given is 0.5, 0.25, 0, -0.25. To find the rule of this sequence, look at the differences between terms. Each term is subtracted by 0.25 to get to the next term.

Step-by-Step Explanation:

Start with the first term which is 0.5.Subtracting 0.25 from the first term gives the second term, 0.25.Continuing this pattern, subtracting 0.25 from the second term gives the third term, which is 0.Finally, subtracting 0.25 from the third term gives the fourth term, which is -0.25.

Therefore, the rule for this sequence is subtracting 0.25 from the previous term to obtain the next term in the sequence.

round 0.9144 to the nearest tenth of a yard

Answers

0.9 should be correct
hope this helps:)

Quadrilateral ABCD is similiar to quadrilateral EFGH The lengths of the three longest sides in quadrilateral ABCD are 24 feet, 16 feet, and 12 feet long. If the two shortest sides of quadrilateral EFGH are 9 feet long and 18 feet long, how long is the 2nd longest side on quadrilateral EFGH
?

Answers

Quadrilateral has four sides. Not necessarily a rectangle, just four sides.

They are similar, so the sides of one of them and the other one are in proportion.

We have to find the proportion. Notice that the 12 feet side and the 18 feet side must be the one in common. 3 longest ones ... one is missing, then, two shortest ones ... two are missing, but they must share that one:

The ratio is the 18:12 or 3:2.

Now we can complete both quadrilaterals:

ABCD: 24, 16, 12,  ?
EFGH:  ?,   ?,  18,  9

ABCD: 24, 16, 12, 6
EFGH: 36, 24, 18, 9

24 is the answer!!

Answer:

A.) 24 feet

Step-by-step explanation:

I got it correct on founders edtell!

In the diagram which angles are alternate interior angles with angle 14?

Answers

ANGLE 4 and ANGLE 12
Angle 4 and Angle 12

How do you subtract two negative numbers?

Answers

when you have 2 negative numbers you actually add the 2nd number to the first one

 example:

-4 - -2 =  becomes -4 + 2 = -2

What is the length of the hypotenuse of a right triangle if each of the two legs is 4 units? square root of 8 units 4 units square root of 32 units 8 unit?

Answers

Answer:

Well if you still need the answer around 4 years later LOL its √32

Step-by-step explanation:

Answer:

√32

Step-by-step explanation:

Because this is totally helpful 4 years later

The area of a rectangle is 65 m2 , and the length of the rectangle is 3 m less than twice the width. find the dimensions of the rectangle.

Answers

x = width
2x-3 = length 

[tex]x(2x-3) = 65\\ 2x^2 - 3x - 65 = 0 \\ D=b^2-4ac=(-3)^2-4*2*(-65)=529\\ x_{1,2}= \frac{-bб \sqrt{D} }{2a}= \frac{3б 23}{4} \\ x_1=-5 \ \ \O \\ x_2=6.5 \ \ [/tex]

width = 6.5 m
length  = 2x-3 = 2*6.5 - 3 = 10 m

The dimensions of the rectangle are 10 meters and 6.5 meters

Let the width of the rectangle be represented by w.

The length of the rectangle will then be:

= 2w - 3

Area of the rectangle = 65m²

Note that length × width = Area

Therefore, w × (2w - 3) = 65

2w² - 3w = 65

2w² - 3w - 65 = 0

2w² - 13w + 10w - 65 = 0

2w(w - 6.5) + 10(w - 6.5) = 0

Therefore, w - 6.5 = 0

w = 0 + 6.5

w = 6.5

Width = 6.5 meters

Length = 2w - 3

Length = 2(6.5) - 3

Length = 13 - 3

Length = 10 meters.

The dimensions of the rectangle is 10 meters and 6.5 meters

Read related link on:

https://brainly.com/question/8615095

Use the functions a(x) = 3x + 10 and b(x) = 2x − 8 to complete the function operations listed below. Part A: Find (a + b)(x). Show your work. (3 points) Part B: Find (a ⋅ b)(x). Show your work. (3 points) Part C: Find a[b(x)]. Show your work. (4 point

Answers

a(x) = 3x + 10
b(x) = 2x − 8

(a+b)(x)=(3x+10)+(2x-8)=5x+2

(a*b)(x)=(3x+10)(2x-8)=
6x^2-24x+20x-80=
6x^2-4x-80

a[b(x)]=3*b(x)+10=
=3*(2x-8)+10
=6x-24+10
=6x-14

There are values of t so that the equation cos t= 5/3

Answers

the answer is false good day

impossible, the maximum value of either cos(t) or sin(t) is 1; look to the unit circle for proof

A bat flies at an average speed of 32 kilometres an hour. At this speed, how far will it fly in 15 minutes?

Answers

filling in 20 characters just to answer with a pic

Final answer:

To find out the distance a bat will fly in 15 minutes at an average speed of 32 kilometers per hour, you multiply the speed by the time in hours (15 minutes is 0.25 hours). The bat will fly 8 kilometers.

Explanation:

To calculate how far a bat flies in 15 minutes at an average speed of 32 kilometers per hour, we need to convert the time into hours since the speed is given in kilometers per hour (km/h). 15 minutes is equal to 0.25 hours (since there are 60 minutes in 1 hour, so 15 minutes divided by 60 minutes per hour equals 0.25 hours).

We can then use the formula for distance which is:

Distance = Speed × Time

The average speed of the bat is 32 km/h, and the time is 0.25 hours.

Distance = 32 km/h × 0.25 h = 8 km

So, the bat will fly 8 kilometers in 15 minutes.

Other Questions
A girl wants to count the steps of a moving escalator which is going up. If she is going up on it, she counts 60 steps. If she is walking down, taking the same time per step, then she counts 90 steps. How many steps would she have to take in either direction, if the escalator were standing still? randy made a business trip of 204 miles. he averaged 52 mph for the first part of the trip and 50 mph for the second part. if the trip took 4 hours, how long did he travel at each rate? A bag contains 6 poker chips, one is red and the other 5 are blue. you and a friend take turns selecting a chip at random from the bag. the first person to get the red chip is the winner. find the probability that you win if you go first and Does the narrators opinion of himself in line 1-16 make him seem more or less reliable? Explain your choice I already answered this but I just want to make sure if I did it right Most women take the family name of a man they marry. in sociological terms, this is an example of how language can be used to convey You are dispatched to a 42-year-old male who was shot in the abdomen and thrown from a vehicle. the patient is critical and a high-category trauma; however, due to the mechanism of injury, it is necessary to backboard the patient prior to transport. what is an important assessment before securing the patient In attachment, help please 1 QUESTION, BRAINLIEST GETS 20 PTS phytoplankton play an important role in which following biogeochemical cycles Sugars, starches, and dietary fibers are examples of Are the functions f(x) = (x^2-1)/(x-1) and g(x)= x+1 equal for all x? The length of a rectangle is 11 ft less than three times the width, and the area of the rectangle is 70 ft2 . find the dimensions of the rectangle. PLS HELP ILL GIVE BRAINLIEST TO WHO EVER ATTEMPTS THIS: The function H(t) = 16t2 + 112t + 24 shows the height H(t), in feet, of a cannon ball after t seconds. A second cannon ball moves in the air along a path represented by g(t) = 5 + 3.2t, where g(t) is the height, in feet, of the object from the ground at time t seconds. Part A: Create a table using integers 4 through 7 for the 2 functions. Between what 2 seconds is the solution to H(t) = g(t) located? How do you know? (6 points) Part B: Explain what the solution from Part A means in the context of the problem. (4 points) An all-or-none response pattern is characteristic of the Find all the real square roots of 0.0004.A. 0.00632 and -0.00632 B. 0.06325 and -0.06325 C. 0.0002 and -0.0002 D. 0.02 and -0.02 An instruction book or program that takes users through a prescribed series of steps to learn how to use a program is called (a) ________. Prove that a set with n elements has 2n subsets. Drugs modify the brain chemistry and change behaviors. Please select the best answer from the choices provided. Describe how the bazaar functions as a symbol of materialism in the story. The client is in atrial fibrillation. which information should the nurse consider about atrial fibrillation when planning care for this client? Steam Workshop Downloader