Denver, Engle and Fido are all dogs who eat differing amounts of dog food.
Denver gets 6/19 of the dog food.
Engle and Fido share the rest of the food in the ratio 7 : 4What is Fido's share of the dog food?
Show your answer as a percentage, rounded to the nearest percent if necessary.

The values are:

To calculate the interest saved by the extra payment, we need to compare the total interest paid with and without the extra payment. We can start by calculating the various parameters of the mortgage:

N = 25*12 = 300 (total number of payments)

1% = 0.01 (monthly interest rate)

PV = $295,000 (present value or principal)

PMT = $1,639.71 (monthly payment)

P/Y = 12 (payments per year)

C/Y = 12 (compounding periods per year)

Using the above values, we can calculate the total interest paid over the 25-year period without the extra payment:

interest= (PMT * N) - PV

Total interest paid = ($1,639.71 * 300) - $295,000

Total interest paid = $170,313.65

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(a) 136.88 ± 3.71

(b) 136.88 ± 2.02

(c) The 70% confidence interval is narrower than the 95% confidence interval.

a. To calculate a 95% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years, we can use the formula for a confidence interval for the mean:

Confidence interval = sample mean ± critical value * (standard deviation / square root of sample size)

The critical value for a 95% confidence interval for a normally distributed population is 1.96. Given that the sample mean is 136.88 lbs, the standard deviation is 12.0 lbs, and the sample size is 40, we can plug in these values to calculate the confidence interval:

Confidence interval = 136.88 ± 1.96 * (12.0 / sqrt(40))

Confidence interval = 136.88 ± 3.71

So the 95% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years is (133.17 lbs, 140.59 lbs).

b. To calculate a 70% confidence interval, we can use the same formula, but with a different critical value. The critical value for a 70% confidence interval for a normally distributed population is 1.04. Plugging in the given values:

Confidence interval = 136.88 ± 1.04 * (12.0 / sqrt(40))

Confidence interval = 136.88 ± 2.02

So the 70% confidence interval for the mean weight of all U.S. women who are 5 ft 4 in. tall and in the age group 18-24 years is (134.86 lbs, 138.90 lbs).

(c) The interpretation of the 70% confidence interval for the mean weight of U.S. women aged 18-24 and 5 ft 4 in. tall is that it is narrower than the 95% confidence interval, indicating a higher level of certainty (70% confidence) that the true population mean weight falls within the narrower range of (134.86 lbs, 138.90 lbs), compared to the wider range of (133.17 lbs, 140.59 lbs) in the 95% confidence interval. This means that as the confidence level decreases, the confidence interval becomes narrower, providing a more precise estimate of the true population mean. However, a lower confidence level also implies a higher risk of the true population mean falling outside the narrower confidence interval."

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Answer:

1. 13 KM. 2. 3.43 KM

Step-by-step explanation:

For these questions, use A^2 + B^2 = C^2, with C being the hypotenuse.

12^2 + 5^2 = c^2

9.5^2 + b^2 = c^2

13 KM,

3.43 KM

The first statement is false  2) true 3) true 4) false 5) true

The orthogonal projection p of y onto a subspace W does not depend on the orthogonal basis for W used to compute p, as the projection is unique.

1. False. The orthogonal projection p of y onto a subspace W does not depend on the orthogonal basis for W used to compute p, as the projection is unique.

2. True. If the columns of an n x p matrix U are orthonormal, then UUTy is indeed the orthogonal projection of y onto the column space of U.

3. True. For each y and each subspace W, the vector y - projw(y) is orthogonal to W, as this is the property of orthogonal projections.

4. False. If z is orthogonal to u1 and u2, and W = span(u1, u2), it implies that z is orthogonal to W, not that z must be in W.

5. True. If y is in a subspace W, then the orthogonal projection of y onto W is y itself, as y is already in the subspace and doesn't need to be projected.

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The following parts can be answered by the concept of Matrix.

(a) If A is a 3 × 5 matrix, then the rank of A is at most 3. This is because the rank is the maximum number of linearly independent rows (or columns) in a matrix, and since A has only 3 rows, it cannot have more than 3 linearly independent rows.

(b) If A is a 3 × 5 matrix, then the nullity of A is at most 5. The nullity is the dimension of the null space of A, which is the space of all solutions to the homogeneous system Ax = 0. The number of variables in this system is equal to the number of columns in A, which is 5. Therefore, the nullity cannot exceed 5.

(c) If A is a 3 × 5 matrix, then the rank of AT (A transpose) is at most 3. When transposing A, the number of rows and columns are switched, making AT a 5 × 3 matrix. The rank is still the maximum number of linearly independent rows (or columns), so the rank of AT cannot be more than the number of rows in AT, which is 3.

(d) If A is a 3 × 5 matrix, then the nullity of AT (A transpose) is at most 5. Since AT is a 5 × 3 matrix, the nullity corresponds to the dimension of the null space for the homogeneous system ATx = 0, with 3 variables. By the rank-nullity theorem, the rank plus the nullity of a matrix equals the number of columns in the matrix.

Therefore, the nullity of AT is at most 5, as the number of columns in A is 5.

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The geometry of the fold is asymmetric.

The term "geometry of the fold" refers to the spatial arrangement or shape of a fold in rock layers. In this case, the fold is described as asymmetric. This means that the fold does not exhibit symmetry or balance in its shape, and one limb of the fold is steeper or has a different shape compared to the other limb.

The term "asymmetric" in geology typically refers to folds that have limbs with different angles of inclination or curvature. Therefore, based on the given options, the correct answer is "C. asymmetric."

Therefore, the correct answer is: A. asymmetric

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The geometry of the fold is asymmetric.

The term "geometry of the fold" refers to the spatial arrangement or shape of a fold in rock layers. In this case, the fold is described as asymmetric. This means that the fold does not exhibit symmetry or balance in its shape, and one limb of the fold is steeper or has a different shape compared to the other limb.

The term "asymmetric" in geology typically refers to folds that have limbs with different angles of inclination or curvature. Therefore, based on the given options, the correct answer is "C. asymmetric."

Therefore, the correct answer is: A. asymmetric

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Answer:

27  , 29

Step-by-step explanation:

Consecutive odd numbers means that, if the lesser number is denoted by the variable, x, that the given equation is:

[tex](x) + (x + 2) = 56[/tex]

Solve. First, combine like terms, then isolate the variable, x:

[tex]x + x + 2 = 56\\(x + x) + 2 = 56\\2x + 2 = 56[/tex]

Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 2 from both sides of the equation:

[tex]2x + 2 = 56\\2x + 2 (-2) = 56 (-2)\\2x = 56 - 2\\2x = 54[/tex]

Next, divide 2 from both sides of the equation:

[tex]2x = 54\\\frac{(2x)}{2} = \frac{(54)}{2}\\ x = \frac{54}{2}\\ x = 27[/tex]

Next, solve for the consecutive odd number. Plug in 27 for x:

[tex](x) = 27\\(x) + 2 = (27) + 2 = 29[/tex]

Check. Add 27 with 29:

[tex]27 + 29 = 56\\56 = 56\\\therefore 27 , 29[/tex]

27 , 29 is your answer.

~

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The options  that follow an exponential pattern are:

A.  Division of skin cells every half hour.

C. y = 4 * 3^(x)

An exponential function is defined as one which gradually increases or decreases by a constant rate.

A) Division of skin cells every half hour.

It will determine a exponential pattern since it could be represented in the form of:

y = ab^(x)

where:

a is the initial amount of skin cells and also the number of skin cells  decreases by a constant rate in every half hour.

Thus, option: A is correct.

B) y = x²

It is not a exponential function.

It is a quadratic function.

Thus, option: B is incorrect.

C) y = 4 * 3^(x)

It is a exponential function.

Since it is represented in the form of:

y = ab^(x)

Thus, option: C is correct.

D) From the given table we could see that this represent a linear function and not exponential since the values are increasing by a fixed rate i.e. 3

Thus, option D is incorrect.

E) You are driving at a constant rate of 55 mph.

This situation will represent a linear function or we may say a constant function.

Thus, option E is incorrect.

F) y = 2x³

It represent a cubic function and not exponential.

Hence, option: F is incorrect.

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Answer:

to express the quadratic equetion in to factor form

you must use completing squere method

[tex] y= {x}^{2} - 10x - 5[/tex]

y + 5 = x2 - 10x

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25y + 30 = (x - 5)2

y + 5 = x2 - 10xy + 5 + 25 = x2 - 10x + 25y + 30 = (x - 5)2 y = ( x - 5)2 - 30 so we get the factor form of the quadratic equetion.

In other way :

if you need to get vertex (5, -30)

or simply by (x, f(x)) which is (-b/2a,f(-b/2a)) form

a=1

a=1b=-10

a=1b=-10c=-5

so when u substitute and you will get (5, f(5))

then for the y-coordinate you substitute 5 in place of x and you will get -30 so vertex = (5, -30)

Answer:

t = (1/4)d

or

t/d = 1/4

Step-by-step explanation:

t = number of tulips

d = number of daffodils

t = (1/4)d

or

t/d = 1/4

t + d = 30

so, when using the first equation in the second we get

(1/4)d + d = 30

multiplying both sides by 4 to get rid of the fraction :

d + 4d = 120

5d = 120

d = 24

t = (1/4)d = 1/4 × 24 = 6

Answer:

a: 268 [tex]in^{3}[/tex]

b: 904 [tex]in^{3}[/tex]

Step-by-step explanation:

Volume of a sphere: [tex]\frac{4}{3} \pi r^3[/tex]

a: [tex]\frac{4}{3} (3.14)(4)^3[/tex] = 267.95

b: r = 12/2 = 6

  [tex]\frac{4}{3} (3.14)(6)^3[/tex] = 904.32

Correct answer is c. the temperature is too warm When the temperature is warm, it can cause a higher rate of evaporation, which increases humidity.

If a device shows that a place has high humidity but there are no clouds in the sky, you can say that it is because the temperature is too warm. High humidity occurs when the air is holding a lot of moisture, and warm air can hold more moisture than cool air.

As the temperature rises, the air can hold more and more moisture until it reaches a point where it becomes saturated, leading to high humidity. Therefore, if there are no clouds in the sky, it is likely that the temperature is high and causing the high humidity reading.

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There are 4 segments of 13 that fit in 53 with a remainder of 1.

To find out how many 13 segments fit in 53, we can use division. To find how many 13 segments fit in 53, we need to divide 53 by 13. We divide 53 by 13, and the quotient will give us the number of 13 segments that fit completely in 53. The remainder will tell us how many units are left over.

53 ÷ 13 = 4 with a remainder of 1

Therefore, there are 4 segments of 13 that fit completely in 53 with 1 unit left over.

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Complete Question:

Find how many 13 segments fit in 53.

The correct statement is:

The vector parametrization of the line is:

To determine whether points P = (4, 11, 25) or Q = (-1, 6, 16) lie on the path r = (1 + t, 2 + t², t⁴), we can substitute the values of P and Q into the parametric equations of r(t) and see if they satisfy the equations.

For point P = (4, 11, 25):

Substituting into r(t):

x = 1 + t

y = 2 + t²

z = t⁴

Comparing with P = (4, 11, 25), we see that all the coordinates match. Therefore, point P lies on the path of r(t).

For point Q = (-1, 6, 16):

Substituting into r(t):

x = 1 + t

y = 2 + t²

z = t⁴

Comparing with Q = (-1, 6, 16), we see that none of the coordinates match. Therefore, point Q does not lie on the path of r(t).

So, the correct statement is:

Point P lies on the path of r(t).

Point Q does not lie on the path of r(t).

To find a vector parametrization of the line through P = (3, 7, 4) in the direction v = (7, -8, 4), we can use the point-direction form of a parametric equation for a line:

r(t) = P + t * v

Substituting the values of P and v, we get:

r(t) = (3, 7, 4) + t * (7, -8, 4)

So the vector parametrization of the line is:

x = 3 + 7t

y = 7 - 8t

z = 4 + 4t

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The column vector of the expression is 6/5.

A column vector  is an entity or matric with single column of entries.

Column vectors can be added and subtracted from each other, multiplied by a scalar, and transformed by matrices. They are also used to represent systems of linear equations.

The column vector of the expression is calculated as follows;

3 ( 2/5 ) = ( 3 x 2 )/ 5

= 6/5

Thus, by multiplying the fraction by 3 we have successfully converted the expression into a single vector.

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The length of the arc s as required to be determined in the task content is; 17.5 cm.

It follows from the task content that the length of the arc s is to be determined from the given information.

By observation, the angle subtended at the center of the two concentric circles is same for the 2cm and 5 cm radius circles.

Therefore, it follows from proportion that the length of an arc is directly proportional to the radius of the containing circle.

Therefore, the ratio which holds is;

s / 5 = 7 / 2

s = (7 × 5) / 2

s = 17.5 cm.

Ultimately, the length of the arc s is; 17.5 cm.

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For the sequence 2 3 5 4 3 6 4 3. 56 6 5 4:

The minimum number is 2

The maximum number is 6

The range is 6 - 2 = 4

So the range of the sequence 2 3 5 4 3 6 4 3. 56 6 5 4 is 4.

In the given equation, [tex]\frac{(a^x)^{2}}{b^{5-x}} \times \frac{b^{y - 4}}{a^{y}} = a^2b^4[/tex], the value of x and y is x = 5 and y = 8

From the question, we are to determine the value of x and y in the given equation.

The given equation is

[tex]\frac{(a^x)^{2}}{b^{5-x}} \times \frac{b^{y - 4}}{a^{y}} = a^2b^4[/tex]

To determine the value of x and y, we will simplify the left hand side of the equation and then compare to the right hand side of the equation

The equation can written as

[tex]\frac{(a^x)^2}{a^{y}} \times \frac{b^{y - 4}}{b^{5-x}} = a^2b^4[/tex]

[tex]\frac{(a^{2x})}{a^{y}} \times \frac{b^{y - 4}}{b^{5-x}} = a^2b^4[/tex]

[tex]a^{2x - y}\times b^{y - 4 -(5-x) = a^2b^4[/tex]

Simplify

[tex]a^{2x - y}\times b^{y - 4 -5+x = a^2b^4[/tex]

[tex]a^{2x - y}\times b^{x+y - 9} = a^2b^4[/tex]

By comparison

[tex]2x - y = 2\\x + y - 9 =4[/tex]

Thus,

2x - y = 2

x + y = 4 + 9

and

2x - y = 2

x + y = 13

Solve the equations simultaneously

2x - y = 2

x + y = 13

Adding the two equations, we get:

3x = 15

Dividing both sides by 3, we get:

x = 5

Substituting this value of x into the second equation, we get:

5 + y = 13

Subtracting 5 from both sides, we get:

y = 8

Hence, the solution is:

x = 5, y = 8

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a. The transformation for C > 0, f(x) is h(x) shifted C units to the right.

b. The transformation for C < 0, f(x) is h(x) shifted C units to the left.

Transformation is a mathematical operation performed to change the shape, size or orientation of a graph or object.

Since we have the basic function h(x) = 2ˣ, we want to describe the functions. We proceed as folllows.

a. To compare f(x) = h(x - C) to the basic function for C > 0, we see that

f(x) = h(x - C)

[tex]f(x) = 2^{x - C}[/tex]

Now, for C > 0, f(x) is h(x) shifted C units to the right.

So,  f(x) is h(x) shifted C units to the right.

b. To compare f(x) = h(x - C) to the basic function for C > 0, we see that

f(x) = h(x - C)

[tex]f(x) = 2^{x - C}[/tex]

Now, for C < 0,

[tex]f(x) = 2^{x - (-C)}\\f(x) = 2^{x + C}[/tex]

So, for C < 0, f(x) is h(x) shifted C units to the left.

So,  f(x) is h(x) shifted C units to the left.

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Answer:

1. 15.72m²

2. 48dm²

3. 4m²

Step-by-step explanation:

1.

area of unshaded circle=

r=3m. πr^2. (22/7)×3×3= 28.29

area of shaded circle

radius= total radius- unshaded circle radius

r=5m-3m = 2m

Area= πr^2. (22/7)×2×2= 12.57

therefore area= unshaded-shaded

28.29-12.57= 15.72

2.

area of unshaded= area of square = L²

8×8=64

area of shaded= length= 8-2-2= 4

4×4= 16

total area =

64-16= 48

3.

area of triangle= (b×h)/2

(7×6)/2= 42/2= 12

area of rectangle= L×b

4×2= 8

area=12-8= 4

The following parts can be answered by the concept of Cylindrical equation.

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

the given Cartesian equations to cylindrical coordinates.

(a) To convert 2x² − 4x + 2y² + z² = 9 to cylindrical coordinates, we use the following relationships:
x = r × cos(θ)
y = r × sin(θ)
z = z

Substituting these relationships into the equation, we get:
2(r × cos(θ))² - 4(r × cos(θ)) + 2(r × sin(θ))² + z² = 9

Simplifying the equation, we get:
2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9

Your cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

(b) To convert z = 5x² − 5y² to cylindrical coordinates, we use the same relationships as before. Substituting them into the equation, we get:
z = 5(r × cos(θ))² - 5(r × sin(θ))²

Simplifying the equation, we get:
z = 5r² × cos²(θ) - 5r² × sin²(θ).

Your cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

Therefore,

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

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The following parts can be answered by the concept of Cylindrical equation.

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

the given Cartesian equations to cylindrical coordinates.

(a) To convert 2x² − 4x + 2y² + z² = 9 to cylindrical coordinates, we use the following relationships:
x = r × cos(θ)
y = r × sin(θ)
z = z

Substituting these relationships into the equation, we get:
2(r × cos(θ))² - 4(r × cos(θ)) + 2(r × sin(θ))² + z² = 9

Simplifying the equation, we get:
2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9

Your cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

(b) To convert z = 5x² − 5y² to cylindrical coordinates, we use the same relationships as before. Substituting them into the equation, we get:
z = 5(r × cos(θ))² - 5(r × sin(θ))²

Simplifying the equation, we get:
z = 5r² × cos²(θ) - 5r² × sin²(θ).

Your cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

Therefore,

a. Cylindrical equation for (a) is: 2r² × cos²(θ) - 4r × cos(θ) + 2r² × sin²(θ) + z² = 9.

b. Cylindrical equation for (b) is: z = 5r² × cos²(θ) - 5r² × sin²(θ).

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The two consecutive integers are -6 and -5

Algebraic expressions are defined as expressions that are composed of coefficients, terms, variables, constants and factors.

Algebraic expressions are also made up of mathematical operations, such as;

From the information given;

Let the consecutive integers

x and x + 1

Then, we get;

5x = 6(x + 1)

expand the bracket

5x = 6x + 6

collect the like terms

-x = 6

x = -6

x + 1 = -6 + 1 = -5

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To write an expression as product means write a number as product of other. The product form of expression -2a⁶ - 8a³b - 8 b² is equals to the -2( a⁶ + 4a³b + b² ).

When we multiply two numbers, the resultant is called the product. For example the product of 3and 5" means "3 x 5" or 15. To write an expression as a product of its factors is called factorization. As we know each product of a number is obtained by multiplying it by any other number. We have an expression, -2a⁶ - 8a³b - 8 b². It is a trinomial because it contains three distinct terms. We have to write it as a product form. For this, we have to try to make factor of the numbers. Factors of first term, - 2a⁶ = -2× a× a×a× a× a× a

Factors of second term, -8a³b = -2×-2 × -2 × a×a×a×b

Factors of second term, -8b² = -2×-2 × -2 × b×b

The common factor in terms = - 2. So, pull out the common factor from expression, we can rewrite the expression as -2( a⁶ + 4a³b + b² ). Hence, required value is -2( a⁶ + 4a³b + b² ). For more information about product, visit :

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Answer: (a, b)

Step-by-step explanation:

the notation f(x) = .... refers that plugging "x" into the function gives us a value which we call "f(x)". so the "plugged in" value is a, and the "spit out
value is b. So in terms of points, (x,y), it will be (a,b)

Therefore surface area of given is 331.63square yards.

A cuboid's total surface area is equal to the sum of all of its faces' surface areas. Given that a cuboid has six faces, the formula for its total surface area is as follows:

Cuboid's total surface area is equal to 2(lb + bh + hl).

where the cuboid's length (l), width (b), and height (h) are all integers.

Surface area of the given picture  =  Total surface area of cuboid - Curved surface area of base of hemisphere + curved surface area of hemisphere

=  2(lb+bh+hl) - πr²+ 2πr²

=  2(lb+bh+hl) + πr²

=  2 (36+60+60) + 3.14(2.5)²

=  2 (36+60+60) + 3.14(2.5)²

=  312 + 19.625

=  331.63 square yards.

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In the two functions as the value of V(x) increases, the value of W(x) also increases.

The value of functions, V(x) and W(x) is determined as follows;

for h(-2, 1/4); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁻²⁺³ = 2¹ = 2

w(x) = 2ˣ ⁻ ³ = 2⁻²⁻³ = 2⁻⁵ = 1/32

for h(-1, 1/2); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2² = 4

w(x) = 2ˣ ⁻ ³ = 2⁻⁴ = 1/16

for h(0, 1); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2³ = 8

w(x) = 2ˣ ⁻ ³ = 2⁻³ = 1/8

for h(1, 2); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁴ = 16

w(x) = 2ˣ ⁻ ³ = 2⁻² = 1/4

for h(2, 4); the value of the functions is calculated as follows;

v(x) = 2ˣ ⁺ ³ = 2⁵ = 32

w(x) = 2ˣ ⁻ ³ = 2⁻¹ = 1/2

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To determine whether a set of solutions for a linear homogeneous differential equation is linearly dependent or not, follow these steps:

1. Identify the given solutions: Let's assume the given solutions are y1(t), y2(t), ..., yn(t).

2. Create the Wronskian: The Wronskian is a determinant used to test the linear dependence of solutions. For n solutions, it is an n x n determinant with the ith row containing the ith derivative of the solutions for i = 0, 1, ..., n-1.

3. Compute the Wronskian: Evaluate the determinant by following the standard methods for calculating determinants, such as cofactor expansion or row reduction.

4. Determine linear dependence: If the Wronskian is identically zero (i.e., it is zero for all values of t), then the set of solutions is linearly dependent. If the Wronskian is nonzero for at least one value of t, the set of solutions is linearly independent.

By following these steps, you can determine if the given set of solutions for a linear homogeneous differential equation is linearly dependent or linearly independent.

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According to the problem, the length is 2 centimetres longer than the width, so the length can be expressed as:

l = w + 2

length = width + 2

The perimeter of a rectangle is twice the sum of its length and width, so we can set up an equation to represent the perimeter given in the problem:

P = 2(l + w)

Substituting the expression for l in terms of w, we get:

P = 2((w + 2) + w)

Simplifying this expression, we get:

P = 2(2w + 2)

P = 4w + 4

We know that the perimeter of the rectangle is 86 centimetres, so we can substitute this value into the equation:

86 = 4w + 4

Subtracting 4 from both sides:

82 = 4w

Dividing both sides by 4:

w = 20.5

Therefore, the width of the rectangle is 20.5 centimetres.

The equation that could be used to find the width of the rectangle is:

4w + 4 = 86

where w represents the width of the rectangle in centimetres.

perimeter = 2L + 2w

so 86 = 2L + 2w

if the length is 2cm longer than the width, that means w+2=L

plug this back into our original equation to get 2(w+2) + 2w = 86

distribute terms to get 4w + 4 = 86

4w = 82

w = 20.5cm

If the number of views grows according to an exponential model, then the formula for the total number of views (V) the video will have after t days can be expressed as:
V(t) = A * e^(kt)

where A is the initial number of views, e is Euler's number (approximately equal to 2.71828), k is the growth rate constant, and t is the time in days.

In this formula, the exponential function e^(kt) represents the growth factor of the video views over time. The larger the value of k, the faster the video views grow over time. On the other hand, the value of A represents the initial number of views at t=0, and it determines the vertical shift of the exponential function.

Therefore, the formula for the total number of views (V) the video will have after t days, assuming an exponential model, is:

V(t) = A * e^(kt)

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