In the scanario where Thomas has a loan with a nominal interest rate of 6.4624% and an effective interest rate of 6.4715%; the statement true that occurs is that: II. The interest on Thomas’s loan is compounded more than once yearly.
Why is Statement II true based on the interest rated?Often, anytime we receive a higher effective interest rate then the rate stated, it implies that we have compound interest more than once yearly. , so, the makes the Statement II is true.
However, when one have have a loan for less then a year and still have those interest rates, you had calculate the rates based on a year effectiveness, but the loan calculations work for any duration. An economy and interest tend to fluctuate in response to each other, but are not indicators. Therefore, the statements I and III are not necessarily true.
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Suppose we compute the standard deviation and find that it is equal to 5.50. This number means that the numbers in the sample deviate, on the average:
The number is the sample deviation, on average 5.5 units from the mean.
The two key areas in statistics are variance and standard deviation. It is a metric for statistical data dispersion. The degree to which values in a distribution deviate from the distribution's average is known as dispersion. The following measurements can be used to determine the extent of the variation:
Range
Quartile Deviation
Mean Deviation
Standard Deviation
Suppose we compute and find that it is equal to 5.5. How do we interpret this number
The number is the sample deviation, on average 5.5 units from the mean.
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jesse uses 3 cups of flour for every 4 tablespoons of butter. How much floud would he need for 9 tablespoons of butter?
Step-by-step explanation:
27cups of flour got to multiple
In the diagram, both circles have the same center, O. The radii of the circles are 3 and 5.
What percent of the diagram is unshaded?
The correct option for the percent of the unshaded area of the circle is (3). 64%.
What is area of a circleThe area of a circle is π multiplied by the square of the radius. The area of a circle(A) when the radius 'r' is given is πr².
A = πr²
π = 3.14
Area of the bigger circle = 3.14 × 5 × 5
Area of the bigger circle = 78.5
Area of the smaller circle = 3.14 × 3 × 3
Area of the smaller circle = 28.26
Area of the unshaded region of the circle = 78.5 - 28.26
Area of the unshaded region of the circle = 50.24
percent of the unshaded region = (50.24 × 100)/78.5
percent of the unshaded region = 64%
Therefore, the percent of the unshaded area of the circle is equal to 64%.
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For the matrix below. Find a basis for R3 that includes vectors in the set by removing vectors from a linearly dependent set and/or adding vectors to a set that does not span R3.
A basis for R3 that includes vectors in the set is {[1 0 -2], [3 2 -4], [0 0 1]}. This is achieved by removing the linearly dependent vector [1 0 -2] and adding the vector [0 0 1] to the set to obtain a set that spans R3.
A basis for R3 that includes vectors in the set can be found by removing vectors from a linearly dependent set and/or adding vectors to a set that does not span R3.
The set given is {[1 0 -2], [3 2 -4]}.
To check if the set spans R3, we need to calculate the determinant of the matrix created by the two vectors. The determinant of the matrix is 0, which tells us that the set does not span R3. To create a basis for R3, we need to add a third vector that is not linearly dependent on the other two. We can add the vector [0 1 1] to the set, creating the following set:
{[1 0 -2], [3 2 -4], [0 1 1]}
To check if this set spans R3, we calculate the determinant of the matrix created by the three vectors. The determinant of the matrix is -6, which is not 0.
Therefore, the set {[1 0 -2], [3 2 -4], [0 1 1]} is a basis for R3.
The complete question: For the matrix below. Find a basis for R3 that includes vectors in the set by removing vectors from a linearly dependent set and/or adding vectors to a set that does not span R3.
( matrix attached below )
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SHOW WORK
Brad is leasing a car worth $34,000 for three years. His leasing company says that the car Brad
is leasing will only be worth $22,600 at the end of his lease. Approximately what percentage of the
car's original value will Brad need to pay as part of his lease? (round to the nearest whole number as
a percent not decimal)
You are leasing a car with a MSRP of $27,000 for three years. After three years, the leasing
company expects the car to have a value of 70% of its original MSRP. What will the residual value of
the car be after three years? (show your work)
Brad will need to pay 34% of the car's original value as part of his lease.
The residual value of the car after three years is $18,900
What percentage of the car's original value will Brad need to pay as part of his lease?PART 1
To find the percentage of the car's original value that Brad will need to pay as part of his lease, we need to calculate the difference between the original value and the residual value (the value of the car at the end of the lease) and express it as a percentage of the original value. Here's how to do it:
difference = $34,000 - $22,600 = $11,400
Express the difference as a percentage of the original value:
($11,400 / $34,000) x 100% = 34%
Therefore, Brad will need to pay approximately 34% of the car's original value as part of his lease. Rounded to the nearest whole number, this is 34%.
PART 2
The residual value of the car after three years can be found by multiplying the original MSRP by the percentage of its value that it will retain after three years. Here's how to do it:
Find the value the car will retain after three years:
residual value = 70% of $27,000 = 0.70 x $27,000 = $18,900
Therefore, the residual value of the car after three years will be $18,900.
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Jim ordered a sports drink and three slices of pizza for $8.50. His friend ordered two sports drinks and two slices of pizza for $8.00
can you find out how much the pizza and sports drinks cost separately? please and thanks!
The Price for one slice pizza is $1.25 and for one drink is $2.25.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Jim ordered a sports drink and three slices of pizza for $8.50.
His friend ordered two sports drinks and two slices of pizza for $8.00.
let the price for pizza be $ and for one drink is $y.
So, the system of equation is
x + 3y = 8.5....(1)
2x+ 2y= 8......(2)
Solving above two equations we get
2(8.5- 3y) + 2y= 8
17 - 6y + 2y= 8
-4y = -9
y= 9/4
y= 2.25
and, x= 8.5- 3(2.25)= 8.5- 6.75 = $1.25
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For each ornament that a worker makes, he is paid $1.15. He makes 4 ornaments every 15 minutes. Find the amount earned by the worker if he works for 3 hours.
please reply asap!
20 points :)
Answer: Here you go.
Step-by-step explanation:
The worker makes 4 ornaments every 15 minutes, which is equivalent to 16 ornaments per hour (since 60 minutes / 15 minutes = 4, and 4 x 4 = 16).
Therefore, the worker can make 48 ornaments in 3 hours (since 3 hours x 16 ornaments per hour = 48 ornaments).
If he is paid $1.15 for each ornament he makes, then he earns $55.20 for making 48 ornaments (since 48 ornaments x $1.15 per ornament = $55.20).
Therefore, if the worker works for 3 hours making ornaments, he would earn $55.20.
Differentiate Y = 1/x
directions for this project, you will submit the python script you used to make your calculations and a summary report explaining your findings. python script: to complete the tasks listed below, open the project two jupyter notebook link in the assignment information module. your project contains the nba data set and a jupyter notebook with your python scripts. in the notebook, you will find step-by-step instructions and code blocks that will help you complete the following tasks: hypothesis tests for a population parameter hypothesis tests for a population mean hypothesis test for a population proportion hypothesis test for the difference between two population parameters hypothesis test for difference between two population means summary report: once you have completed all the steps in your python script, you will create a summary report to present your findings. use the provided template to create your report. you must complete each of the following sections: introduction: set the context for your scenario and the analyses you will be performing. hypothesis tests for the population mean: discuss all steps of the hypothesis tests and interpret your results. hypothesis test for the population proportion: discuss all steps of the hypothesis test and interpret your results. hypothesis test for the difference between two population means: discuss all steps of the hypothesis test and interpret your results. conclusion: summarize your findings and explain their practical implications.
From the directions, It seems that you are working on a project related to hypothesis testing for NBA data. To complete the project, you need to perform several hypothesis tests for population parameters and write a summary report explaining your findings.
The first task is to submit a Python script that includes all the necessary code to perform the hypothesis tests. You can use the Jupyter notebook provided in the project to write the code. The notebook contains step-by-step instructions and code blocks that will help you complete the tasks.
The second task is to write a summary report that includes an introduction, hypothesis tests for the population mean, hypothesis test for the population proportion, hypothesis test for the difference between two population means, and a conclusion.
In the introduction, you should set the context for your scenario and explain the purpose of your analysis. You should also provide an overview of the data and the hypothesis tests you will be performing.
In the hypothesis tests for the population mean, you will need to discuss all the steps of the hypothesis test, including formulating the null and alternative hypotheses, selecting the significance level, calculating the test statistic, determining the p-value, and interpreting the results.
In the hypothesis test for the difference between two population means, you will need to discuss all the steps of the hypothesis test, including formulating the null and alternative hypotheses, selecting the significance level, calculating the test statistic, determining the p-value, and interpreting the results.
Finally, in the conclusion, you should summarize your findings and explain their practical implications. You should also discuss any limitations of your analysis and suggest future research directions.
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Given that cot(θ)<0 and cos(θ)<0, in which quadrant does θ lie?
if cot(θ)<0 and cos(θ)<0, then we can conclude that θ lies in the second quadrant.
What is trigonometry functions ?
Trigonometry functions are a set of mathematical functions that relate the angles of a triangle to the lengths of its sides. The three main trigonometric functions are sine, cosine, and tangent, which are commonly abbreviated as sin, cos, and tan. These functions can be defined as ratios of the sides of a right triangle.
In a right triangle, the side opposite an acute angle is called the "opposite" side, the side adjacent to the angle is called the "adjacent" side, and the hypotenuse is the side opposite the right angle. With this terminology, we can define the following trigonometric functions:
Sine (sin): The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse. In other words, sin(θ) = opposite/hypotenuse.
Cosine (cos): The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse. In other words, cos(θ) = adjacent/hypotenuse.
Tangent (tan): The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side. In other words, tan(θ) = opposite/adjacent.
There are also three reciprocal trigonometric functions: cosecant (csc), secant (sec), and cotangent (cot). These functions are the reciprocals of sine, cosine, and tangent, respectively.
Trigonometric functions have many practical applications in fields such as engineering, physics, and astronomy, where they are used to solve problems involving angles and distances. They also have many applications in pure mathematics, such as in the study of periodic functions and Fourier analysis.
According to given information :
To understand why θ must be in the second quadrant, we need to recall the signs of the trigonometric functions in each quadrant.
In the first quadrant, all trigonometric functions are positive.
In the second quadrant, sine is positive and cosine is negative.
In the third quadrant, both sine and cosine are negative.
In the fourth quadrant, sine is negative and cosine is positive.
Since we know that cos(θ) is negative, we can conclude that θ lies in either the second or third quadrant. However, since cot(θ) = cos(θ)/sin(θ) and cot(θ) is negative, we know that cos(θ) and sin(θ) must have opposite signs. In the third quadrant, both cos(θ) and sin(θ) are negative, so their quotient cot(θ) would be positive, which is not the case.
Therefore, we can conclude that θ lies in the second quadrant.
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Answer:
If cot(θ)<0 and cos(θ)<0, then we can conclude that θ lies in the second quadrant.
What are trigonometry functions ?
Trigonometry functions are a set of mathematical functions that relate the angles of a triangle to the lengths of its sides. The three main trigonometric functions are sine, cosine, and tangent, which are commonly abbreviated as sin, cos, and tan. These functions can be defined as ratios of the sides of a right triangle.
In a right triangle, the side opposite an acute angle is called the "opposite" side, the side adjacent to the angle is called the "adjacent" side, and the hypotenuse is the side opposite the right angle. With this terminology, we can define the following trigonometric functions:
Sine (sin): The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse. In other words, sin(θ) = opposite/hypotenuse.
Cosine (cos): The cosine of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse. In other words, cos(θ) = adjacent/hypotenuse.
Tangent (tan): The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side. In other words, tan(θ) = opposite/adjacent.
There are also three reciprocal trigonometric functions: cosecant (csc), secant (sec), and cotangent (cot). These functions are the reciprocals of sine, cosine, and tangent, respectively.
Trigonometric functions have many practical applications in fields such as engineering, physics, and astronomy, where they are used to solve problems involving angles and distances. They also have many applications in pure mathematics, such as in the study of periodic functions and Fourier analysis.
According to given information :
To understand why θ must be in the second quadrant, we need to recall the signs of the trigonometric functions in each quadrant.
In the first quadrant, all trigonometric functions are positive.
In the second quadrant, sine is positive and cosine is negative.
In the third quadrant, both sine and cosine are negative.
In the fourth quadrant, sine is negative and cosine is positive.
Since we know that cos(θ) is negative, we can conclude that θ lies in either the second or third quadrant. However, since cot(θ) = cos(θ)/sin(θ) and cot(θ) is negative, we know that cos(θ) and sin(θ) must have opposite signs. In the third quadrant, both cos(θ) and sin(θ) are negative, so their quotient cot(θ) would be positive, which is not the case.
Therefore, we can conclude that θ lies in the second quadrant.
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Given A and b in Exercises 11 and 12, write the augmented matrix for the linear system that corresponds to the matrix equation Ax = b. Then solve the system and write the solution as a vector. 11. A= [ 1 2 4 0 1 5 -2 -4 -3] , b= [-2 2 9]12. A = [1 2 1 -3 -1 0 5 3]' b = [0 1 -1]13. Let u = [0 4 4] and A = [3 -5 -2 6 1 1] is u in the plane R^3
The solution of the system is equal to u, u is in the plane [tex]R^3[/tex].
Augmented matrix for Exercise 11:
[1 2 4 -2 0 1 5 9 -3]
The solution is: x = 2, y = -3, z = 1
Augmented matrix for Exercise 12:
[1 2 1 0 -3 -1 5 -1 3]
The solution is: x = -1, y = 6, z = -2
To determine if u = [0 4 4] is in the plane [tex]R^3[/tex], we need to find the solution of the system of linear equations formed by the augmented matrix:
[3 -5 -2 0 6 1 4 1 1]
Solving this system, we find that x = 0, y = 4, z = 4. Since the solution of the system is equal to u, u is in the plane [tex]R^3[/tex].
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HELP: Three vertices of a parallelogram are shown in the figure below.
Give the coordinates of the fourth vertex.
Answer:
We have to find co-ordinates of the fourth vertex.
Let fourth vertex be D(x,y)
Since, ABCD is a parallelogram, the diagonals bisect each other.
Si, co-ordinate of mid-point of AC= Co-ordinate of mid-point of BD.
∴ The fourth vertex is D(−b,b)
Step-by-step explanation:
The function h is defined by the following rule.
h(x)=2x-2
Complete the function table.
X
-5
-1
1
2
h (x)
0
10
Answer: See attached.
Step-by-step explanation:
We will input the given x-values and solve for y by substituting x for the values in the original function, h(x)=2x-2.
h(-5) = 2(-5)-2 = -12
h(-1) = 2(-1)-2 = -4
h(1) = 2(1)-2 = 0
h(2) = 2(2)-2 = 2
2/5 of a gal used 1/4 for coffee.How much milk in cups
2.4 cups of milk were used.
What is Fraction?A fraction represents a part of a whole.
Let's start by figuring out how much of a gallon was used for coffee:
1/4 of a gallon = (1/4) x 1 gallon = 0.25 gallons
2/5 of a gallon = (2/5) x 1 gallon = 0.4 gallons
So, 0.25 gallons of the 0.4 gallons were used for coffee
Remaining amount of the 0.4 gallons was used for milk:
0.4 - 0.25 = 0.15 gallons
Now, we need to convert 0.15 gallons to cups.
One gallon is equal to 16 cups
0.15 gallons = 0.15 x 16 cups/gallon = 2.4 cups
Therefore, 2.4 cups of milk were used.
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40 POINTS!! Prompt: Explain how you could find the area of the figure below.
The area of the composite figure consists in the sum of the areas of two rectangles, two triangles and a semicircle.
How to determine the area of a composite figure
In this problem we find the representation of a composite figure HJKLMNOP, whose area can be determined as the sum of area of different figures. We find the areas of the following figures herein:
Triangle
A = 0.5 · w · l
Rectangle
A = w · l
Semicircle
A = 0.5π · r²
Where:
w - Widthl - Heightr - RadiusA - AreaThe composite figure is the result of summing the areas of two rectangles, two triangles and a semicircle.
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NEED HELO ASAP!!! WILL GIVE 100 POINTS!!
Using the graphed function above, find the following:
Maximum:
Minimum:
Equation of midline:
Amplitude:
Period:
Frequency:
Equation of the graphed function:
Maximum: 1, Minimum: -3, Midline y = -1, Amplitude = 4, Period = π, Frequency = 1/π, equation -4cos(2x) + 1:
Sinusoidal Functions
It refers to the oscillating functions like the sine or cosine which range from a minimum and maximum value periodically.
The graph shown can give us all the information we need to answer these questions:
Maximum: 1
Minimum: -3
The midline goes through the center value (mean) of the max and min values, i.e.
Equation of the midline:
y = (1-3)/2
y = -1
Amplitude is the difference between the maximum and minimum values
A =4
The period is the time it takes to complete a cycle. We can see the minimum value is first reached at x=0 and next at x = π
Thus the period is
T = π
The frequency is the reciprocal of the period:
f = 1/T = 1/π
The angular frequency is
ω = 2πf
ω = 2
The equation of the function is a negative cosine (since it starts at the minimum) or a shifted sine or cosine. We'll choose the negative cosine, knowing all the parameters:
f(x) = -4cos(2x) + 1
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if the sales ax rate is 7.6%, how much sales tax will you pay on a $330 item?
Answer:
$25.08
Step-by-step explanation:
7.6% = 0.076
We take
330 times 0.076 = $25.08
You will pay $25.08 sale tax.
Find (f+g)(x).
f(x) = -3x+2
g(x)=x²³
The value of the composition function ( f + g ) ( x ) = x²³ - 3x + 2
What is Composition of functions?Evaluation of a function at the value of another function is known as Composition of function. A function composition is a process in which two functions, f and g, form a new function, h, in such a way that h(x) = g(f(x)). This signifies that function g is being applied to the function x. So, in essence, a function is applied to the output of another function.
Given data ,
Let the first function be represented as f ( x )
Now , the value of f ( x ) = -3x + 2
Let the second function be represented as g ( x )
Now , the value of g ( x ) = x²³
On simplifying , we get
The value of ( f + g ) ( x ) = f ( x ) + g ( x )
Substituting the values of f ( x ) and g ( x ) , we get
( f + g ) ( x ) = x²³ - 3x + 2
Hence , the composition function is ( f + g ) ( x ) = x²³ - 3x + 2
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Polygon ABCD is a rectangle. AE = 4x+10 and EC = 2x+18. What is DB? (Make sure you are answering the question being asked...)
The length of DB in rectangle ABCD is √{5x² + 38x + 106}.
What is Pythagoras's theorem?
In a right-angled triangle, the sum of the squares of the smaller two sides of a right-angle triangle is equal to the square of the largest side.
Given, Polygon ABCD is a rectangle, AE = 4x + 10 and EC = 2x + 18.
Here DB is the diagonal of the rectangle ABCD.
Therefore,
DB = √(AE² + EC²).
DB = √{(4x + 10)² + (2x + 18)²}.
DB = √{16x² + 80x + 100 + 4x² + 72x + 324}.
DB = √{20x² + 152x + 424}.
DB = √{5x² + 38x + 106}.
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what is k in this equation 2/3k = 8/15?
Answer:5/4
Step-by-step explanation:
2/3k=8/15
then,
2*15=8*3k
30=24k
k=30/24=15/12=5/4
Which of the following statements are true for any triangle
Answer:
A, C, E
Step-by-step explanation:
TAN = sin / cos
now use algrebra tonsolve the other equations.
B is the value for CoTangent. not tangent.
C is true. multiply both sides by cos
D is false.
E is true. dividing by sin then requires the inverse ratio. which flips fractions on both sides.
Share 28 sweet between amanda and busi in the ratio 3:1
Represent the quadratic polynomial 2x2 + x – 6 using algebra tiles and determine the equivalent factored form.
The number of zero pairs needed to model this polynomial is
The zeroes of the polynomials will be x = (-1 ± 7) / 4.
What is a polynomial?A polynomial in mathematics is an expression made up of coefficients and indeterminates and involves only the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables.
To represent the quadratic polynomial 2x²+ x - 6 using algebra tiles, we can use the following tiles:
Two squares with side length x, representing 2x²
One rectangle with length x and width 1, representing x
Six small squares, representing -6
We can arrange these tiles to form a rectangle as shown below:
A rectangle made of algebra tiles with 2x² squares, x rectangle, and -6 small squares]
The area of this rectangle is the same as the value of the polynomial, which is 2x²+ x - 6.
To determine the equivalent factored form of this polynomial, we need to find two binomials that, when multiplied together, give us the original polynomial. We can start by using the quadratic formula:
x = (-b ± √(b² - 4ac)) / 2a
where a = 2, b = 1, and c = -6, since our polynomial is 2x^2 + x - 6.
Plugging in these values, we get:
x = (-1 ± √(1² - 4(2)(-6))) / 2(2)
x = (-1 ± √(49)) / 4
x = (-1 ± 7) / 4
So, the two roots of the quadratic polynomial are x = 3/2 and x = -2.
Therefore, we can write the factored form of the quadratic polynomial as:
2x² + x - 6 = 2(x - 3/2)(x + 2)
To determine the number of zero pairs needed to model this polynomial, we can count the number of negative tiles (small squares) left after forming the rectangle. In this case, we have six negative tiles, which means we need six zero pairs to model this polynomial.
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Answer:
Step-by-step explanation:
14) Draw MN so that it is parallel to ST.
Answer:
M--------------N
S---------------T
Step-by-step explanation:
Parallel means that no matter how far they extend they will never touch
The
accompanying
table shows the value
of a car over time that was purchased for
17100 dollars, where x is years and y is the
value of the car in dollars. Write an
exponential regression equation for this
set of data, rounding all coefficients to the
nearest hundredth. Using this equation,
determine the value of the car, to the
nearest cent, after 12 years.
Years (x) Value in Dollars (y)
0
1
2
3
4
LO
5
17100
14090
12240
11403
10369
9055
The equation of the exponential regression is y = 17100[tex]e^{-0.194x}[/tex] and the value of a car after 12 years is $1667
What is an exponential regression?It is a model that explains processes that experiences growth at a double rate. It is used for situations where the growth begins slowly but rapidly speeds up without bounds or where the decay starts rapidly but slows down to get to zero.
Given that, the given table shows the value of a car over time that was purchased for 14100 dollars, where x is years and y is the value of the car in dollars.
We need to find the exponential regression equation for this set of data,
We know that,
The exponential regression equation is : y = A₀eᵃˣ
Where A₀ is the coefficient of exponential regression and a is the constant.
For x = 0, the value of y will be $17100.
Therefore,
17100 = A₀e⁰
A₀ = 17100
Therefore, the equation will be =
y = 17100eᵃˣ
Find for a,
For x = 1, the value of y will be $14090.
14090 = 17100eᵃ
eᵃ = 14090/17100
Taking ln both sides, then we have,
a lne = -0.194
a = -0.194
Therefore, the exponential regression equation for this set of data is :
y = 17100[tex]e^{-0.194x}[/tex]
Finding the value of the car, after 12 years =
y = 17100[tex]e^{-0.194(12)[/tex]
y = 1667
Hence, the equation of the exponential regression is y = 17100[tex]e^{-0.194x}[/tex] and the value of a car after 12 years is $1667
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Gwen is pouring 48 drinks for a party. Each drink she pours is 8.64 fluid ounces.
The equation above represents this situation where is the total amount of fluid ounces she poured. How many total fluid ounces did she pour?
Answer: If each drink is 8.64 fluid ounces and Gwen is pouring 48 drinks, then the total amount of fluid ounces she poured is 8.64 fluid ounces * 48 drinks = 413.12 fluid ounces.
Step-by-step explanation:
If
IK
and
LN
are parallel lines and mNMJ = 116°, what is mIJM?
Answer: Since IK and LN are parallel lines, then mIJM and mNMJ are supplementary, meaning that they add up to 180 degrees. Therefore, mIJM = 180° - mNMJ = 180° - 116° = 64°.
Step-by-step explanation:
If Mark can go 48 miles on 2 gallons of gas. How many miles can you go on 20 gallons of gas?
Answer:
960 miles
Step-by-step explanation:
just multiply by 48x20=960
. find an interval that will contain 99% of the values of the coefficient of restitution with 95% confidence.
Assuming that the coefficient of restitution follows a normal distribution, we can use the z-score associated with a 95% confidence level, which is approximately 1.96.
to find the margin of error for the sample mean. Since we want to find an interval that contains 99% of the values, we need to include ±2.5% on both sides of the mean. Thus, the interval can be calculated as follows:
Interval = sample mean ± z-score * (standard deviation / square root of sample size)
Since we do not have information about the mean or standard deviation of the coefficient of restitution, we cannot provide a specific interval. However, if we assume that the standard deviation is 0.1, we can use a rule of thumb that a sample size of at least 30 is required to use the central limit theorem and assume normality. Then, the interval would be:
Interval = sample mean ± 1.96 * (0.1 / square root of 30)
Note that this is just an example, and the interval will depend on the actual sample mean and standard deviation of the coefficient of restitution.
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he following data represent the flight time (in minutes) of a random sample of six flights from Las Vegas, Nevada, to Newark, New Jersey, on United Airlines. 282, 270, 260, 266, 260, 267 Compute the range and sample standard deviation of flight time. The range of flight time is minutes.
The range of flight time is 22 minutes, and the sample standard deviation is 8.24 minutes.
To compute the range, we simply subtract the smallest value from the largest value: Range = 282 - 260 = 22.
To compute the sample standard deviation, we first calculate the mean flight time by summing the values and dividing by the sample size:
Mean = (282 + 270 + 260 + 266 + 260 + 267) / 6 = 266.17
Then we subtract the mean from each flight time, square the differences, sum the squared differences, divide by the sample size minus one, and take the square root of the result:
Standard Deviation = √((1/5) * [(282-266.17)² + (270-266.17)² +
(260-266.17)² + (266-266.17)² + (260-266.17)² + (267-266.17)²]) = 8.24.
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Complete Question:
The following data represent the flight time (in minutes) of a random sample of six flights from Las Vegas, Nevada, to Newark, New Jersey, on United Airlines. 282, 270, 260, 266, 260, 267 Compute the range and sample standard deviation of flight time. The range of flight time is minutes.