This proof by induction shows that n + 1 log n = 2 for all positive integers n. This holds true since S(1) = 2, and S(k + 1) = 2 for any integer k ≥ 1.
Proof:
Let S(n) = n + 1 log n
We will prove S(n) = 2 by induction.
Base Case:
Let n = 1. Then S(1) = 1 + 1(log 1) = 1 + 0 = 1 = 2.
Inductive Step:
Assume S(k) = 2 for some arbitrary integer k ≥ 1. We must show that S(k + 1) = 2.
S(k + 1) = (k + 1) + 1(log(k + 1))
= k + 1 + 1(log k + log 1)
= k + 1 + 1(log k + 0)
= k + 1 + 1(log k)
= k + 1 + log k
= 2 + log k
= 2 (by induction hypothesis)
Therefore, S(n) = 2 for all positive integers n.
This proof by induction shows that n + 1 log n = 2 for all positive integers n. This holds true since S(1) = 2, and S(k + 1) = 2 for any integer k ≥ 1.
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what is this one ??
i have 4 more
Answer:
see below
Step-by-step explanation:
year 1
7000*(1+13%) = 7910
year 2
7910*(1+13%) =8940
Samtech manufacturing purchased land and building for $4 million. In addition to the purchase price, samtech made the following expenditures in connection with the purchase of the land and building:.
The initial valuation of each asset Samtech acquired in transactions:
Value capitalized = $4,000,000 + $16,000 + $5,000 + $4,000
Value capitalized = $4,025,000
Assets Fair value Total percentage Proportional value
1.Land $3,300,000 75% $2,475,000
2.Building $1,100,000 25% $275,000
Total $4,400,000 100 % $2,750,000
Working Notes :
Land =($3,300,000 ÷ $4,400,000) =75%
Building =($1,100,000 ÷ $4,400,000) = 25%
Land Improvement =$82,000 + $40,000 =$122,000
2) The initial valuation of each asset assumes that immediately after acquisition that Samtech demolished the building:
Entries Amounts
1. Purchase cost $4,000,000
2. Add: Title insurance of $16,000
3. Add: Legal fees for drawing the contract $5,000
4. Add: State transfer fee of $4,000
5. Add: Demolition cost $250,000
6. Add: Cleaning and grading cost $86,000
7. Less: Salvage material $6,000
Total Cost of land $4,355,000
Land Improvement = $82,000 + $40,000 = $122,000
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The complete question is:
Samtech Manufacturing purchased land and building for $4 million. In addition to the purchase price, Samtech made the following expenditures in connection with the purchase of the land and building: Title insurance $ 16,000 Legal fees for drawing the contract 5,000 Pro-rated property taxes for the period after acquisition 36,000 State transfer fees 4,000 An independent appraisal estimated the fair values of the land and building if purchased separately, at $3.3 and $1.1 million, respectively. Shortly after the acquisition, Samtech spent $82,000 to construct a parking lot and $40,000 for landscaping. Required: 1. Determine the initial valuation of each asset Samtech acquired in these transactions. 2. Determine the initial valuation of each asset, assuming that immediately after acquisition, Samtech demolished the building. Demolition costs were $250,000 and the salvaged materials were sold for $6,000. In addition, Samtech spent $86,000 clearing and grading the land in preparation for the construction of a new building.
Miles receives $6,000 from his parents. He wants to buy an used car that costs $12,500. If
he invests the money from his parents into an account that pays 7.5% interest compounded
continuously, how long will it take before he has a enough money to buy the car? Round your
answer to the nearest year.
Answer:
10 years
Step-by-step explanation:
principal = 6000
int = 7.5% annual compounding CONTINUOUSLY = everyday
so every day of the year he gets 7.5% / 365
so annual effective rate =7.7876%
so to get to 12500 it'll take t years
12500 = 6000* (1+ 7.7876% )^t
2.0833=1.077876^t
solve for t
approximately 10 years
In the diagram below, D E ‾ DE is parallel to A B ‾ AB . If D E DE is 5 5 less than D C DC, A C = 56 AC=56, and A B = 48 AB=48, find the length of D C ‾ DC . Figures are not necessarily drawn to scale. State your answer in simplest radical form, if necessary.
The length of line segment Dc is equal to 35 units.
How to determine the length of DC?In Mathematics, two geometric figures are considered to be congruent only when their corresponding side lengths are congruent and the magnitude of their angles are congruent.
Since side length DE is parallel to AB and side DE is 5 less than side length DC, we have the following:
DE = DC - 5
In Geometry, the corresponding side lengths of two similar geometric figures are proportionate and as such, we have the following:
DC/AC = DE/AB
DC/56 = DC - 5/48
48DC = 56(DC - 5)
48DC = 56DC - 280
56DC - 48DC = 280
8DC = 280
DC = 280/8
DC = 35 units.
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6 - 9b = - 10b - 4 =
Answer:
B = 10/19 it's a fraction btw
Maxwell is taking a trip to an island that is 275
miles away. He'll drive the first part of the trip,
then board a boat that will take him to the island.
Maxwell drives an average speed of 60 miles per
hour. The boat travels at a speed of 40 miles per
hour. If the whole trip takes him 5 hours, how
many miles long is the boat trip?
Answer:Let's call the distance of the boat trip "d".
Since the whole trip took 5 hours, and Maxwell was driving for part of it, we know that:
d/40 + x/60 = 5
where x is the number of hours Maxwell spent driving.
We also know that the distance he drove is equal to the total distance minus the boat trip:
275 - d = x * 60
So we can substitute this into the first equation:
d/40 + (275 - d)/60 = 5
Expanding and simplifying this equation gives us:
6d = 1800
Finally, dividing both sides by 6 gives us:
d = 300
So the boat trip was 300 miles long.
Step-by-step explanation:
Let's call the distance of the boat trip "d".
Since the whole trip took 5 hours, and Maxwell was driving for part of it, we know that:
d/40 + x/60 = 5
where x is the number of hours Maxwell spent driving.
We also know that the distance he drove is equal to the total distance minus the boat trip:
275 - d = x * 60
So we can substitute this into the first equation:
d/40 + (275 - d)/60 = 5
Expanding and simplifying this equation gives us:
6d = 1800
Finally, dividing both sides by 6 gives us:
d = 300
So the boat trip was 300 miles long.
please help me asap it’s due soon
Using the concept of ratio in the similar triangles, the length scale factor is 1:25
What is Similar TriangleSimilar triangles are triangles that have the same shape but may be scaled differently. Two triangles are considered similar if and only if their corresponding angles are congruent (equal in measure) and the ratio of their corresponding sides is the same. This property is known as the "AA Similarity Postulate" or "Angle-Angle Similarity".
In other words, similar triangles have the same shape and proportional sides. This means that if two triangles are similar, corresponding sides are in proportion and corresponding angles are equal in measure.
In the given figures, the two triangles have areas of 3m² and 75m²
The formula of area of a triangle is given as ;
A = 1/2 (b * h)
Assuming the side lengths are equal, we can apply heron's formula which is given as;
S = [a + b + c / 2]
A = √s(s - a)(s - b)(s - c)
But a = b = c
Using the two triangles to find the ratio between the ratios;
Q : R = 3 : 75 = 1 : 25
The length will be given as;
Area = 1/2 b * h
b = h
75 = 1/2 * a * a
a² = 75 * 2
a² = 150
a = √150
In the second triangle;
3 = 1/2(b²)
6 = b²
b = √6
The ratio between Q to R = √6 : √150 = 1 : 25
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when students are asked to list their age and the percentage of their college expenses that they pay for themselves, the type of data being collected is quantitative. True/False
True, when students are asked to list their age and the percentage of their college expenses that they pay for themselves, the type of data being collected is quantitative.
The data being collected is quantitative because both age and the percentage of college expenses paid for oneself are numerical values that can be quantified and measured. Age can be expressed in years and the percentage of college expenses can be expressed as a decimal or a percentage (e.g. 50%). This type of data can be analyzed using mathematical operations and statistical methods.
Hence, when students are asked to list their age and the percentage of their college expenses that they pay for themselves, the type of data being collected is quantitative.
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Crissy took out an installment loan to pay for her new car. She borrowed $22500 for 40
months with a $6743.25 finance charge. Find her APR to the nearest hundredth of a
percent. Don't forget to include the percentage symbol (%).
O 16.91%
O 16.19%
O 19.16%
O 19.61%
The APR, given the finance charge, the amount borrowed, and the number of months, is b. 16. 19 %
How to find the APR?You can find the APR by using the RATE function on Spreadsheet.
The number of periods = 40 months
The Payment per month was:
= ( Loan amount + Finance charge )
= ( 22, 500 + 6, 743 .25 ) / 40 months
= $ 731.08125
The present value is the loan amount of $ 22, 500
The monthly rate is 1. 13456 %
The APR is:
= 1. 3456 x 12 %
= 16. 19 %
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Each of the two congruent sides of an isosceles trapezoid measures 9 cm. The little base measures 11 cm less than the large base. The perimeter of this trapezoid is 43 cm. What is the measurement of the large base?
The length of the large base of the trapezoid is 18cm.
What is the measurement of the large base of the trapezoid?An isosceles trapezoid is simply a convex quadrilateral having a line of symmetry equally dividing one pair of opposite sides.
Given the data in the question
Let the large base be represented by 'x'
Large base = xLittle base = x - 11Each of the two congruent sides = 9cmPerimeter = 43The perimeter of the trapezoid is the sum of all the sides of all its sides.
Perimeter = side a + side b + side c + side d
Hence;
43 = x + ( x - 11 ) + 9 + 9
Solve for x
43 + x + x - 11 + 18
43 = 2x + 7
43 - 7 = 2x
36 = 2x
2x = 36
x = 36/2
x = 18
Hence;
Large base = x = 18cm.
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find an equation of the sphere with center (-5, -3, 0) and radius 1
Equation of the sphere with center (-5, -3, 0) and radius 1 is (x + 5)² + (y + 3)² + z² = 1.
The Sphere is what?All points on a sphere are at a set distance from the centre, making it a three-dimensional geometric object. It is thought to be one of the most basic three-dimensional shapes and is a perfect circle.
Both a circle and a sphere are round, if you compare them. The fact that we can measure the volume and area of a sphere is due to the fact that a sphere is three-dimensional as opposed to a circle, which is a two-dimensional shape.
It is possible to formulate the equation for a sphere with centre (h, k, l) and radius r as follows:
(x - h)² + (y - k)² + (z - l)² = r²
Using the given center (-5, -3, 0) and radius 1, we can write the equation of the sphere as:
(x + 5)² + (y + 3)² + (z)² = 1²
which simplifies to:
(x + 5)² + (y + 3)² + z² = 1.
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What is the derivative of Secx by first principle?
First-principle differentiation of sec x results in ten times sec x.
Explain about the derivative of Secx?Regarding the variable x, y = f(x). Wherever the limit occurs is defined to be the derivative of f at x if this limit exists and is finite. The first principle of derivative is another name for this definition.
Sec x tan x is, as far as we are aware, the derivative of sec x. Determining that sec x equals the integral of sec x tan x. Specifically, sec x tan x dx = sec x + C
On a graph, the first derivative shows the slope of the function at a particular position, while the second derivative shows how the slope changes as the independent variable is changed. The second derivative accounts for the curve in the above graph for a function with a variable slope.
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Yusuf has peaches and apples in a ratio of 18:11. How many peaches does he have if he has 550 apples?
Answer: 900 peaches
Step-by-step explanation:
cuz please thank
3u2-2=5u Quadratic Formula
Using the quadratic formula we will see that the solutions are:
u₊ = 2
u₋ = -1/3
How to solve the quadratic equation?Here we have the quadratic equation:
3u² -2 = 5u
We can rewrite that in the general form so we get:
3u² -2 - 5u = 0
Now we can use the quadratic formula to find the solutions, we will get:
[tex]u = \frac{5 \pm \sqrt{(-5)^2 - 4*-2*3} }{2*3} \\\\u = \frac{5 \pm 7 }{6}[/tex]
Then the two solutions are:
u₊ = (5 + 7)/6 = 2
u₋ = (5 - 7)/6 = -2/6 = -1/3
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Amir is growing three plants.
He keeps track of each plant's height over time.
Which plant is growing the slowest?
Slowest growing plant is plant A.
What is slope?The Slope (also called Gradient) of a line shows how steep it is.
To calculate the Slope:
Divide the change in vertical distance by the change in horizontal distance
Given,
Amir grows three plants,
Graph of plant A is given with straight line,
Height is denoted on x axis,
Time is denoted on y axis
Slope of the line will represent growth rate.
Line passes through (1,2) and (2,4)
slope of the line
= y-y'/x-x'
= 2 - 4/1 - 2
= - 2 / - 1
= 2
Growth rate = 2 inches per month
For plant 2
by the table,
Height is 15 inches in 6 months.
Growth rate = 15/6 = 2.5 inches per month
Equation for plant 3
h = 3.5t
Slope of the equation = 3.5
Growth rate = 3.5 inches per month
By the above calculation,
Growth rate of plant A is least.
Hence, Plant A is growing slowest.
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a population of women has 40% with dark eyes. if a sample of 20 women are selected from this population, what is the probability that exactly ten of the women have dark eyes?
The probability that exactly 10 of the 20 women have dark eyes is 0.2051.
What is the probability that exactly ten of the women have dark eyes?The theory used in this question is the binomial probability formula, which is used to calculate the probability of a certain number of successes in a given number of trials.
The steps for this process are as follows
Step 1: Calculate the binomial formula: (n!)/(x!(n-x)!) * p^x * (1-p)^(n-x),
where n is the number of trials (in this case, 20), x is the number of successes (10), p is the probability of a success (0.40 in this case), and n-x is the number of failures (10).
Step 2: Plug the values into the formula: (20!)/(10!(20-10)!) * 0.40^10 * (1-0.40)^(20-10)
Step 3: Simplify the formula: (20*19*18*17*16*15*14*13*12*11) / (10*9*8*7*6*5*4*3*2*1) * 0.40^10 * 0.60^10
Step 4: Calculate the result: 0.2051
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Find the smallest pair of 4-digit numbers such that the difference between them is 303 and their hcf is 101. Show your step.
Based on the information provided, the two whose is 101 are 1010 and 1313.
?
The is the highest common factor or in other words, the highest by which two numbers can be divided. Let's start by listing the four digits that can be the related to 101.
101 x 10 = 1010
101 x 11 = 1111
101 x 12 = 1212
101 x 13 = 1313
Now, from these numbers, there are two numbers whose difference is
1313 - 1010 = 303
Based on this, the two numbers are and
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Find two numbers whose difference is 303, hcf is 101 and are 4 digits long.
Start by writing down two 4-digit numbers that have a difference of 303. The two numbers should be close together, but not the same number. For example, you could choose 9801 and 9498.
Next, find the factors of each number. For 9801, the factors are 3 x 3 x 11 x 101 and for 9498 the factors are 2 x 7 x 13 x 101.
Now, find the Highest Common Factor (HCF) of the two numbers. To do this, you can look at the factors of both numbers and find which ones are the same. In this case, the HCF is 101.
Finally, check if the difference between the two numbers is still 303. As 9801-9498 = 303, this is correct. Therefore, 9801 and 9498 are the smallest pair of 4-digit numbers with a difference of 303 and an HCF of 101.
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Use the relative frequency table. Out of all the lunch orders, what percent are sandwiches? Enter your answer in the box. I Will give you the Brainliest.
Percentage of sandwiches out of all lunch orders = 61%
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Order of sandwich = 61%
Total lunch order = 100%
Percentage of sandwiches = 61%
Hence, There are 61% of sandwiches out of all lunch orders.
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Select all equivalent expressions from the list
A. 8(1+4y)
1. 8x+8x
2. 8+32y
3. 8•1+8•4y
4. 8+4y
The equivalent expressions from the list will be 8 + 32y and 8•1+8•4y. Then the correct options are B and C.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The expression is given below.
⇒ 8(1 + 4y)
Simplify the expression, then we have
⇒ 8(1 + 4y)
⇒ 8 + 32y
The equivalent expressions from the list will be 8 + 32y and 8•1+8•4y. Then the correct options are B and C.
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What are the four important properties of a parallelogram?
Answer:
see below
Step-by-step explanation:
Opposite sides are congruent (AB = DC).
Opposite angels are congruent (D = B).
Consecutive angles are supplementary (A + D = 180°).
If one angle is right, then all angles are right.
The four properties of parallelogram are:
i) Opposite sides are parallel & equal.
ii) Sum of adjacent interior angles is 180°
iii) Opposite angles are equal.
iv) Diagonals bisect each other.
What is an parallelogram?The quadrilateral with two pairs of parallel sides is known as a parallelogram. Equal in length and width on both sides is required. Four vertices make up a parallelogram, which also has four edges.
A parallelogram is a two-dimensional (2D) shape that has two matching pairs of opposite sides that are parallel and equal in length. The angles inside the two sides of the shape must add up to 180 degrees, which means that all of the angles must add up to 360 degrees.
A rectangle that has been pushed over slightly is all that a parallelogram really is. Because of this, finding the area of a parallelogram can be done using the same formula as finding the area of a rectangle.
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find the equation of the tangent line to the graph of the function f(x)=(x2 9)(x−4) at the point (1,−30) .
The point-slope formula can be used to get the equation of the tangent line to the graph of the function f(x)=(x2 - 9)(x - 4) at the point (1, -30).
To get the slope at the position (1, -30), first take the derivative of the function:
f'(x) = (x2 - 9) (x2 - 9)
(x - 4)' = 2x - 9/x - 4
Check the derivative at x = 1 now:
f'(1) = 2(1) - 9/(1) - 4 = -93
The line has a -93 slope.
Now, enter the point-slope formula the point (1, -30) and the slope (-93):
y - (-30) = -93(x - 1) (x - 1)
If we simplify, we get:
y = -93x + 22
As a result, y = -93x + 22 is the equation of the tangent line to the graph of the function f(x)=(x2 - 9)(x - 4) at the point (1, -30).
The point-slope formula can be used to get the equation of the tangent line to the graph of the function f(x)=(x2 - 9)(x - 4) at the point (1, -30). According to the point-slope formula, the equation of the line is y - y1 = m for a given point (x1, y1) and slope (m) (x - x1). The specified point in this instance is (1, -30), and the slope of the line may be calculated by calculating the function's derivative and evaluating it at x = 1. The derivative of the function f(x) is 2x - 9/x - 4, which for x = 1 translates to -93. When the point and slope are entered into the point-slope equation, we obtain the result y - (-30) = -93(x - 1), which is abbreviated to y = -93x + 22. As a result, y = -93x + 22 is the equation of the tangent line to the graph of the function f(x)=(x2 - 9)(x - 4) at the point (1, -30).
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graph a line with a slope of -3 that contains the point (4,-2)
(for 20 points)
I redrawn the line in the picture. Hopefully this helps you
Solve the system of equations.
−
2
�
+
9
�
=
11
−
5
�
+
2
�
=
−
34
−2x+9y=11
−5x+2y=−34
Rafael is saving money to buy a game. So far he has saved $16, which is one-fourth of the total cost of the game. How much does the game cost?
Answer:If Rafael has saved $16, which is one-fourth of the total cost of the game, then the total cost of the game is 4 times the amount he has saved. So, the game costs:
$16 * 4 = $64
Therefore, the game costs $64.
Step-by-step explanation:
If Rafael has saved $16, which is one-fourth of the total cost of the game, then the total cost of the game is 4 times the amount he has saved. So, the game costs:
$16 * 4 = $64
Therefore, the game costs $64.
simplify:6(y^2)^2(x^-2y)^-1 /3x^-3 y^5
Using the origin as the center of dilation and a scale factor of k=1/2, find the coordinates of the vertices of the image of the polygon below.
(Show Work PLEASE)
Answer:
A' (-2, -1.5)
B' (-2, 1.5)
C' (1, 1.5)
D' (1, -1.5)
Step-by-step explanation:
If you start at (0,0) and go to Point A, you go 4 to the left and down 2. Half of that is left 3 and down 1.5. That is where A' will go. Do the same thing to the other 3 points.
A video game was released with 4 playable characters. The video game company has a plan to add 6 new characters every quarter (every 3 months) for the first 2 years. If an equation is written …
The value of b is 4.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
We can make the ordered pairs (x, y).
Where x is the number of quarters and y is the number of playable characters.
Now,
A video game was released with 4 playable characters.
This means,
(0, 4)
Now,
The video game company has a plan to add 6 new characters every quarter (every 3 months).
This means,
(1, 10)
(2, 16)
(3, 22)
Now,
y = mx + b
Now,
Take any two ordered pairs:
(1, 10)
(2, 16)
m = (16 - 10) / (2 - 1)
m = 6
Now,
(0, 4) = (x, y)
4 = 6 x 0 + b
b = 4
Thus,
4 is the value of b.
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How to Evaluate the Expression in Algebra Calculator
you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
What is meant by arithmetic ?
The Father of Arithmetic is an Indian mathematician and astronomer by the name of Brahmagupta.The area of mathematics known as arithmetic deals with the study of numbers and the numerous operations that can be performed on them. Addition, subtraction, multiplication, and division are the fundamental mathematical operations.The difference between consecutive words is always two, hence the sequence 3, 5, 7, 9... is arithmetic. The difference between consecutive words is always minus five, hence the sequence 21, 16, 11, 6,... is also arithmetic.Since arithmetic is the most fundamental area of mathematics, it is crucial to learn and comprehend it thoroughly. Every other area of mathematics is impacted by arithmetic, which functions somewhat like the fundamental blocks for more challenging and sophisticated topics.To learn more about arithmetic refer to
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I keep on getting the answer to be 163/12 (which is wrong, but im doing the correct method so I don’t know where I’m going wrong), the correct answer is supposed to be 37/12
The minimum of y = f(x) occurs at (x,y) = (3,1). Hence y= f(x) >=1 for all other x in its domain of definition.
What is Quadratic equation ?
Quadratic equation can be defined as equation in which it is in the form of ax^2 + bx + c = 0
where c is a constant.
y = f(x) + 3 merely increases the value y by 3 for any x, or just raises its graph up 3. The x-value for its minimum remains at x=3 and y = f(3) + 3 = 1 + 3 = 4. Hence, new minimum = (3,4)
y = f(x-2) just shifts or translates the graph of f to the right by 2. So what occurred at x=3 (the minimum y) now occurs at x=5 without changing y = 1. Hence, new minimum = (5,1).
y = f(1.5x) compresses the x-scale without changing y. So what happened at x=3 before now happens at x'=2 on the new scale.
Therefore, the minimum point now becomes (2,1).
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If the mean of 6 numbers is 36, what is the 6th number if 5 of the numbers are 27, 42, 43, 45, and 35?
The sixth number in the data is 24.
What is mean of a data?Mean is an arithmetic average of the data set, and it can be calculated by dividing a sum of all the data points with the number of data points in the data.
Given that, the mean of 6 numbers is 36, we need to find the 6th number if 5 of the numbers are 27, 42, 43, 45, and 35
We know that,
Mean = (sum of observations) ÷ (total number of observations)
Let the sixth number be x,
Therefore,
36 = (27 + 42 + 43 + 45 + 35 + x) / 6
216 = 192 + x
x = 24
Hence, the sixth number in the data is 24.
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