Answer:
6+20
Step-by-step explanation:
DQ1: Consider the vertex matrix T in application 1 page 185. How can we extend this into 3 dimensional objects in space? Add a vector, or vectors to T and describe the object for which you have created vertices (i.e., a cube, a pyramid, etc.) What are the dimensions of your new matrix? What do the dimensions represent?
Thus, for any vector x = (x1, x2, x3) in R3, we have: L(x) = Ax where A is the matrix given above.
What is matrix?A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. Matrices are used extensively in mathematics, science, engineering, and computer science to represent and manipulate linear equations, systems of equations, vectors, and other mathematical objects. Matrices can be added, subtracted, multiplied, inverted, and transformed in various ways to solve problems in algebra, calculus, statistics, and other fields. Matrices are also used in computer graphics, machine learning, and other areas of artificial intelligence to represent data, images, and other information. The size of a matrix is given by its number of rows and columns, and matrices can be classified as square (when they have the same number of rows and columns) or rectangular (when they have different numbers of rows and columns).
Here,
To find the matrix A that corresponds to the linear transformation L, we need to write L(e1), L(e2), and L(e3) as linear combinations of the standard basis vectors in R2.
L(e1) = (1+0, 0+0) = (1, 0)
L(e2) = (0+1, 1+0) = (1, 1)
L(e3) = (0+0, 1+0) = (0, 1)
So we can write:
L(x) = L(x1 e1 + x2 e2 + x3 e3)
= x1 L(e1) + x2 L(e2) + x3 L(e3)
Now we can assemble the coefficients of this linear combination into a matrix A:
A= [tex]\left[\begin{array}{ccc}1&1&0\\0&1&1\end{array}\right][/tex]
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Part B
Which statements are true about functions f and g?
Select all the correct answers.
O Function g has a range of all real numbers.
O Function g has a constant percent rate of change of 125%.
O Functions fand g have the same y-intercept.
Function f eventually exceeds function g.
O Functions fand g both have a domain of all real numbers.
O Function f has a constant rate of change of -4.
Therefore , the solution of the given problem of function comes out to be rate of change for O Function f is -4.
Describe the function.There will be questions on every subject, including created and real places as well as algebraic variable design, on the midterm test. a schematic illustrating the connections between various components that work together to produce the same outcome. A service is made up of many unique parts that work together to produce unique outcomes for each input.
Here,
The appropriate statements, given the facts, are:
The range of function g includes all real values.
The y-intercepts of functions f and g are identical.
The domains of functions f and g are all real integers.
The appropriate answers are thus:
The range of the O Function g includes all real integers.
The steady percent rate of change for X Function g is 125%.
The y-intercepts of X Functions f and g are identical.
O Function f ultimately outperforms function g.
The domains of X Functions f and g are all real integers.
The steady rate of change for O Function f is -4.
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Lyla goes out to dinner with her freinds where the subtotal is $78.41. A 6% tax and 15% tip is added to the subtotal. How much did she pay in total?
Which has the smallest value?
19.445
19.45
19.5
19.454
Objective: Apply Kruskal's algorithm to find the minimum spanning tree. This activity is designed to encourage collaboration and interaction among classmates and creates engagement that is equitable to face-to-face learning.
Q: A telecommunication company plans to update fiber-optic lines for multiple neighborhoods. It saves the company money if the amount of lines can be minimized. The vertex represents the neighborhood. The distance is marked in units of 10 miles (the weight of each edge is given.) Use the Kruskal's algorithm to find the minimum Spanning tree.
1. Describe Kruskal's algorithm steps in detail. Explain how you used these steps to find the minimum weight for this question. You can label the vertices using letters in your description.
2. What is the minimum weight of the following graph? Show your Spanning tree diagram by attaching a file/image to this discussion. Use the correct units in miles. (1 on graph = 10 miles)
(see the picture attached below)
Note: The cost of the spanning tree is the sum of the weights of all the edges in the tree. There can be many spanning trees; The minimum spanning tree is the spanning tree where the cost is the minimum among all the spanning trees. There could also be many minimum spanning trees.
The minimum spanning tree has direct application in the design of networks. It is used in algorithms approximating the traveling salesman problem, multi-terminal minimum cut problem, and minimum-cost weighted perfect matching.
Answer:
Step-by-step explanation:
(1)Suppose that 84% of a sample of 125 nurses working 7 AM to 3 PM shifts in city hospitals
express positive job satisfaction, while only 72% of a sample of 150 nurses on 11 PM to 7 AM
shifts express similar fulfillment. Establish a 90% confidence interval estimate for the difference
and interpret.
p1 – proportion of nurses working day shifts
p2 – proportion of nurses working night shifts
Conditions:
1. Random – assume samples are representative of the populations
2. Independence – it is safe to assume that the samples would be independent of each other
3. 10% Condition – 125 nurses is less than 10% of all nurses working a day shift. 150 nurses is
less than 10% of all nurses working a night shift.
4. Success/Failure -
1 1 2 2 n p n p
ˆ ˆ
105 10 108 10
1 1 2 2 n q n q
ˆ ˆ
20 10 42 10
All conditions have been met to use the Normal model for a 2 proportion z-interval.
CI:
1 2
1 1 2 2
1 2
1 2
105 108
ˆ ˆ 0.84 0.72
125 150
ˆ ˆ ˆ ˆ
( ) * ˆ ˆ
(0.84)(0.16) (0.72)(0.28) (0.84 0.72) 1.645
125 150
p p
p q p q
p p z
n n
CI: (0.0391, 0.2009)
We are 90% confident that the true proportion of nurses working a day shift who express positive
job satisfaction is between 3.9% to 20.1% higher than for nurses working a night shift.
Find the difference for 5 1/4 - 2 3/4
Answer: 2.5 (or 2 1/2 as a mixed number)
Step-by-step explanation:
Answer:
5/2 or 2.5
Step-by-step explanation:
[tex]5 \frac{1}{4} - 2\frac{3}{4}[/tex] = 5.25 - 2.75 = 2.5 = 5/2
Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch's 200 Cows. Instead of weighing all of the cows: Robert weighs 25 cows and gets an average weight of 1,550 pounds (stdev = 50) • Val weighs 100 cows and gets an average weight of 1,380 pounds (stdev = 50) What is Val's margin of error, rounded to the nearest whole number? (The formula is 1.96 (std dey)//N
The required margin of error for Val is 9.8 pounds.
What do we mean by Margin of error?The margin of error is a statistic that describes how much random sampling error there is in survey results.
One should have less faith that a poll's findings would accurately reflect those of a population census the higher the margin of error.
Multiplying a key factor (for a specific confidence level) and the population standard deviation yields the calculation for the margin of error.
The square root of the sample's observational count is then used to divide the outcome.
So, the following equation provides the margin of error:
M = 1.96 s/√n
Now, calculate as follows:
M = 1.96 s/√n
M = 1.96 50/√100
M = 9.8
Therefore, the required margin of error for Val is 9.8 pounds.
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Correct question:
Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: Robert weighs 25 cows and gets an average weight of 1,550 pounds (stdev = 50) Val weighs 100 cows and gets an average weight of 1,380 pounds (stdev = 50) What is Val’s margin of error, rounded to the nearest whole number? (The formula is 1.96 (std dev) / square root of N
Each 12 centimeter on a map represents an actual length of 18 of a meter. What length on the map represents 1 meter? Responses 116 centimeter 1 over 16, centimeter 58 centimeters 5 eighths, centimeters 2 centimeters 2 centimeters 4 centimeters 4 centimeters
The length οn the map that represents 1 meter in real is 2/3 centimetres.
What is ratiο?When twο numbers are cοmpared, the ratiο between them shοws hοw οften the first number cοntains the secοnd. As an illustratiοn, the ratiο οf οranges tο lemοns in a dish οf fruit is 8:6 if there are 8 οranges and 6 lemοns present.
Given that Each 12 centimetre οn a map represents an actual length οf 18 οf a meter. Therefοre, the ratiο can be written as,
=>Length οn Map / Actual Length = (12) centimetres / (18) meters
=>Length οn Map / Actual Length = 2/3 centimetres per meters
Nοw, the length οn the map that represents 1 meter in real is,
=>Length οn Map / Actual Length = 2/3 centimetres per meters
=> Length οn Map / 1 meter = (2/3) centimetres / 1 meters
=>Length οn Map = 2/3 centimetres
Hence the length οn the map that represents 1 meter in real is 2/3 centimetres.
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Please answer question 15, with diagrams.
The 60 m length of PS and the 21° angle ∠QKR, 41° angle ∠KSR, 17° angle ∠KSR, and the time of flight of 2 minutes, indicates that the distance |PQ| and the aeroplane speed are;
(a) The distance |PQ| is about 2,020.5 meters
(b) The speed of the aeroplane is about 60.6 km·h⁻¹
What is the speed of an object in motion?The speed of an object is a measure of how fast the object is moving, and the unit of speed is the distance per unit time. The speed of an object is the magnitude of the velocity vector of the object.
(a) The direction of flight of the aeroplane = Horizontally
Therefore;
PS = QR
PS = 600 m (the dimension on the diagram)
Therefore; QR = PS = 600 m
QR/KR = tan(21°)
KR = QR/tan(21°)
Therefore;
KR = 600/tan(21°) ≈ 1,563.05
PQ and SR are horizontal segments and PS and QR are vertical, therefore;
PQ ║ SR and PS ║ QR, therefore, quadrilateral PQRS is a parallelogram
PS and QR are vertical therefore, ∠PSR and ∠QRS are 90° angles, (definition of vertical segment PS is perpendicular to the horizontal segment segment SR)
Therefore, the parallelogram PQRS is a rectangle (Properties of a rectangle)
PQ ≅ SR (Facing sides of a rectangle)
∠SKR = 180° - (41° + 17°) = 122°
∠SKR = 122°
KR/sin(41°) = SR/sin(122°)
SR = sin(122°) × KR/sin(41°)
SR = sin(122°) × KR/sin(41°)
SR = sin(122°) × 1,563.05/sin(41°) ≈ 2,020.5
SR = PQ ≈ 2,020.5
|PQ| = 2,020.5 meters(b) The aeroplane flies from P to Q in 2 minutes
The conversion of the units are obtained as follows;
2,020.5 meters = 2.0205 km
1 minutes = (1/60) hour, therefore, 2 minutes = (2/60) hour = (1/30) hourThe time of 2 minutes = 120 seconds, therefore;
The speed of the aeroplane ≈2.0205 km/((1/30) h) ≈ 60.6 km·h⁻¹Learn more on distance, speed and time here: https://brainly.com/question/4931057
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help fast
Using a standard deck of cards, a gamer drew one card and recorded its value. They continued this for a total of 100 draws. The table shows the frequency of each card drawn.
Card A 2 3 4 5 6 7 8 9 10 J Q K
Frequency 4 7 5 6 7 6 8 10 7 10 8 12 10
Based on the table, what is the experimental probability that the card selected was a K or 6?
one over 26
four over 25
one fourth
8 over 13
The experimental prοbability that the card selected was a K οr 6 is fοur οver 25.
What is the prοbability?The study οf prοbability examines the likelihοοd that a particular οutcοme will οccur; this likelihοοd is determined by the ratiο οf the preferred and pοssible cases.
The frequency οf K and 6 is 8 and 7 respectively.
Therefοre, the tοtal frequency οf K οr 6 is 8 + 7 = 15.
The tοtal number οf cards drawn is 100.
Hence, the experimental prοbability οf drawing a K οr 6 is:
15/100 = 3/20
Hence, the answer is fοur οver 25.
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Please help me answer these two questions!!!
2. IN THE ALPHABEIC ORDER IF WE GO A-B SO I THINK ITS 10
If you get the answer correct ill give brainliest and thanks :))
Answer:
B.
Step-by-step explanation:
Just pick a point on the graph like F
( -1, 3)
(-5,-4)
so its -4 for x and -7 y
Each of the given linear systems is in row echelon form.
Solve the system.
x + y − z + 2w=4
w=5
The solution as an ordered quadruple:
(0, -6 - z, z, 5)
HOW TO SOLVE A LINEAR SYSTEM?
The given linear system is:
x + y - z + 2w = 4
w = 5
This system is already in row echelon form. We can use back substitution to solve for the variables. Since we already know the value of w, we can substitute w = 5 into the first equation:
x + y - z + 2w = 4
x + y - z + 2(5) = 4
x + y - z + 10 = 4
Simplifying, we get:
x + y - z = -6
Now we have two equations:
x + y - z = -6
w = 5
We can solve for x, y, and z using the first equation. To do this, we can use the fact that the system is in row echelon form, which means that the leading coefficients are all 1 and there are no variables to the left of the leading coefficients. We can start by solving for z since it has a leading coefficient of 1:
z = x + y + 6
Next, we can use the second equation to solve for y:
y = -x - z - 6
Finally, we can use the third equation to solve for x:
x = y + z + 6
Substituting the expressions for y and z into the equation for x, we get:
x = (-x - z - 6) + (x + y + 6) + 6
Simplifying, we get:
2x = 0
Therefore, x = 0. Substituting this value into the expressions for y and z, we get:
y = -z - 6
z = y + 6
We have now solved the system and found that:
x = 0
y = -z - 6
z = y + 6
w = 5
We can write the solution as an ordered quadruple:
(0, -6 - z, z, 5)
where z can take on any value. This means that the system has infinitely many solutions, since we can choose any value for z and obtain a corresponding solution for x, y, and w.
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A bag contains nine yellow marbles and five red marbles. You randomly select two marbles from the bag. What is the probability that both marbles are yellow when you do not replace the first marble before selecting the second marble?
Answer: 18/49
Step-by-step explanation:
P(Yellow) = 9/14
= 9/14 • 9-1/14
=9/14 • 8/14
= 72/196 or 18/49
The company Save My Data offers data
storage in different packages for other
companies. 14 cloud accounts and 1 hard
drive have a total capacity of 18
terabytes. 3 hard drives and 4 cloud
accounts have a total capacity of 22
terabytes. Find the capacity of I cloud
account and the capacity of 1 hard drive.
the capacity of 1 cloud account is approximately 0.8421 terabytes, and the capacity of 1 hard drive is approximately 5.7895 terabytes.
Let's assume that the capacity of 1 cloud account is "C" terabytes and the capacity of 1 hard drive is "H" terabytes.
We can then set up a system of two equations to represent the given information:
14C + H = 18 (equation 1)
4C + 3H = 22 (equation 2)
We can use either substitution or elimination method to solve for C and H. Let's use elimination method by multiplying equation 1 by 3 and equation 2 by -1:
42C + 3H = 54 (equation 1 multiplied by 3)
-4C - 3H = -22 (equation 2 multiplied by -1)
Adding the two equations together, we get:
38C = 32
Dividing both sides by 38, we get:
C = 0.8421...
Now we can substitute this value of C into either equation 1 or equation 2 to solve for H. Let's use equation 1:
14C + H = 18
14(0.8421...) + H = 18
H = 5.7895...
Therefore, the capacity of 1 cloud account is approximately 0.8421 terabytes, and the capacity of 1 hard drive is approximately 5.7895 terabytes.
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Ms. Hernandez writes this expression on the board. 1/2 divide by 3 1/6
Answer:
[tex] \frac{1}{2} \div 3 \frac{1}{6} [/tex]
[tex] \frac{1}{2} \div \frac{19}{6} = \frac{1}{2} \times \frac{6}{19} = \frac{3}{19} [/tex]
The answer is 3/19.
A yoga studio offers memberships that cost $35 per month for unlimited classes. The studio also accepts walk-ins, charging $7 per class. If someone attends enough classes in a month, the two options cost the same total. What is that total amount?
The total amount of classes attended is 5 classes.
How to find the total amount?A yoga studio offers memberships that cost $35 per month for unlimited classes. The studio also accepts walk-ins, charging $7 per class.
Therefore, if someone attends enough classes in a month, the two options cost the same total. The total amount can be calculated as follows:
Let
x = number of classes attended in a month for the second option.
Hence,
7x = 35
divide both sides by 7
x = 35 / 7
x = 5
Therefore, the total amount of classes is 5 classes.
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The total value of some coins is $1.50. The
coins contain nickels, dimes, and quarters only. The collection must contain at least one of each kind. What is the fewest number of coins possible?
F. 5
G. 6
H. 7
J. 8
K. 9
Answer: J. 8 Coins
Step-by-step explanation: 5 quarters ($1.25 worth), 2 dimes ($0.20 worth ) and 1 nickel ($0.05 worth) is the only way you can get to the value of $1.50 total using 8 coins while using every coin at least once.
There are 6 red, 4 blue, and 10 yellow marbles in a bag. What is the probability you randomly pick one marble that is NOT red?
Answer: 4/20; 10/20
Step-by-step explanation:
There are 20 marbles in total and 4 are blue;
Numerator: 4
Then the total is at the bottom!
Denominator:20
Same as for red marbles.
Have a lovely day!!
The probability you randomly pick one marble that is not red is 7/10.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
We have,
Red = 6 marbles
Blue = 4 marbles
Yellow = 10 marbles
Total marbles= 6 +4 + 10 = 20
So, the probability of getting NO red
= (20 - 6) / 20
= 14 / 20
= 7/ 10
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A cone has a height of 18 meters and a radius of 5 meters. What is its volume?
Answer:~471.24 m
Step-by-step explanation:
1). The formula is V=πr²[tex]\frac{h}{3}[/tex]
2). Substitute: V= π5²[tex]\frac{18}{3}[/tex]
Which will give you 471.2389 but rounded approximately 471.24.
Please help! Due tonight!
Answer: 97445
Step-by-step explanation:
27.4% of x = 26,700
x = 26,700 divided by 27.4%
(convert 27.4% to decimal) x = 26,700 divided by 0.274
x = 97445 (note the answer is rounded because you cannot have .25 of a person)
The number of lightning strikes on a square kilometer of open ground in a year has mean 6 and standard deviation 2.4. (These values are typical of much of the United States.) The National Lightning Detection Network uses automatic sensors to watch for lightning in a sample of 25 randomly chosen square kilometers.
For the sample, what are the mean and standard deviation of ▁x, the mean number of strikes per square kilometer?
The mean of ▁x is 6 and the standard deviation of ▁x is 0.48.
What is standard deviation ?
Standard deviation is a measure of the amount of variation or dispersion of a set of data values from their mean (average) value. It tells us how much the individual data points differ from the mean. In other words, it measures the spread of the data around the mean.
A small standard deviation indicates that the data points are clustered closely around the mean, while a large standard deviation indicates that the data points are more spread out from the mean.
The formula for standard deviation is the square root of the sum of the squared differences between each data point and the mean, divided by the number of data points minus 1. It is denoted by the symbol σ for a population, and s for a sample.
The mean of the number of lightning strikes on a square kilometer of open ground in a year is 6, and the standard deviation is 2.4. Since we are interested in the mean of a sample of 25 square kilometers, the mean of the sample means, denoted by ▁x, can be found by:
Mean of ▁x = Mean of the population = 6
The standard deviation of the sample means, denoted by σ(▁x), can be found by dividing the population standard deviation by the square root of the sample size:
σ(▁x) = Population standard deviation / √Sample size
= 2.4 / √25
= 0.48
Therefore, the mean of ▁x is 6 and the standard deviation of ▁x is 0.48.
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Can you solve this question?
f'(x)=?
The derivative of the function f(x) is:
f'(x) = (sinx + 2cosx)/(2√x)
How to find f'(x) of the function?
Differentiation involves finding the derivative of a function. The derivative of a function represents the rate of change of the function with respect to its input variable.
For any function of the form f(x) = u(x)·v(x). The derivative is given by:
f'(x) = u'(x)·v(x) + v'(x)·u(x)
f(x) = (√x)·sinx can be written as f(x) = [tex]x^{\frac{1}{2} }[/tex] . sin x
Thus, if f(x) = (√x)·sinx, the derivative will be:
f'(x) = (1/2)[tex]x^{-\frac{1}{2} }[/tex]sinx + [tex]x^{\frac{1}{2} }[/tex]cosx
f'(x) = sinx/(2√x) + cosx/(√x)
f'(x) = (sinx + 2cosx)/(2√x)
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Hue is arranging chairs. She can form 3 rows of a given length with 1 chair left over, or 7 rows of that same length if she gets 11 more chairs. Complete the equation and solve it to find how many chairs are in that row length. In your equation, use the variable x to represent the number of chairs in each row.
As a result, each row contains 2.5 chairs. The closest whole number must be rounded up because a chair cannot be split. Thus, each row contains three chairs.
What is length referred to as?
The British imperial or American customary schemes of measurement both use the inch as their standard unit of length (symbolized as in or ′′). It is equal to 136 yards or 112 feet.
Let x represent how many chairs are in each row. Two bits of knowledge are provided by the issue:
Hue can arrange 3 rows of a particular length with just 1 chair left behind, therefore her overall number of chairs is 3x + 1.
Hue can arrange seven rows that are identical in length using an additional 11 chairs, making her total chair count 7x + 11.
These two bits of knowledge can be used to create an equation:
3x + 1 = 7x + 11
After simplifying and locating x, we get:
4x = 10
x = 2.5
Thus, each row contains 2.5 chairs. A chair, however, cannot be divided, therefore we must round to the next whole number. There are three chairs for each row as a result.
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pls he;lp ill mark brain
Answer:
1
Step-by-step explanation:
it is one
the request is to evaluate the given expressions for x = 3 and y = 2
5(x+2)+9(y-1)
I want t make sure this question is as easy as it seems, I also need to simplify and solve.
Thank you
Answer:
34
Step-by-step explanation:
5 ( x + 2 ) + 9 ( y - 1 )
Solve the brackets.
5x + 10 + 9y - 9
Combine like terms.
5x + 9y + 1
Given that,
x = 3
y = 2
So, to find the value of the expression replace x and y with 3 & 2 and solve the expression.
Let us solve it now.
5x + 9y + 1
5 × 3 + 9 × 2 + 1
15 + 18 + 1
34
Graph the equation y = 4
How many total workers are needed to ship 110,550 units for the shift
Answer: 402 is the workers should be picking in order to ship 110,550 units for the shift. Hence, option E is correct.
Step-by-step explanation:
Jack takes out a loan that gathers compound interest. The table below shows the value of the loan over time. a) What is the rate of interest per annum? Give your answer as a percentage to 1 d.p. b) Work out the value of the loan 10 years after it starts. Give your answer in pounds (£) to the nearest 1p. Start After 1 year After 2 years £7500.00 £7920.00 £8363.52
Accοrding tο the given infοrmatiοn, the value οf the lοan 10 years after it starts is [tex]\£15,640.16[/tex]
What is cοmpοund interest?Cοmpοund interest is the interest earned οn bοth the principal amοunt and the accumulated interest frοm previοus periοds.
Tο find the rate οf interest per annum, we can use the fοrmula:
[tex]A = P(1 + r/n)^{(nt)[/tex]
where A is the end value οf the lοan, P is the initial value οf the lοan, r is the interest rate per annum (as a decimal), n is the number οf times per year that the interest is cοmpοunded, and t is the time in years.
Using the table, we can see that after οne year, the lοan has increased tο £7920.00, which is an increase οf:
7920.00 - 7500.00 = 420.00
After twο years, the lοan has increased tο £8363.52, which is an increase οf:
8363.52 - 7500.00 = 863.52
Tο find the rate οf interest per annum, we can use the fοrmula:
[tex]r = (A/P)^{(1/t)-1[/tex], where A is the end value οf the lοan, P is the initial value οf the lοan, t is the time in years, and r is the interest rate per annum (as a decimal).
Using the values frοm the table, we get:
[tex]r = (8363.52/7500.00)^{(1/2)} - 1 = 0.06[/tex]
Sο the rate οf interest per annum is 6% (tο 1 decimal place).
Tο find the value οf the lοan after 10 years, we can use the fοrmula:
[tex]A = P(1 + r/n)^{(nt)[/tex]
where P is the initial value οf the lοan, r is the interest rate per annum (as a decimal), n is the number οf times per year that the interest is cοmpοunded, and t is the time in years.
Using the values we have, we get:
[tex]A = 7500(1 + 0.06/1)^{(1*10)} =\£15,640.16[/tex]
Sο the value οf the lοan 10 years after it starts is £15,640.16 (tο the nearest penny).
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Find the measure of x
Answer:
5.41
Step-by-step explanation: