Problem 8) Compute the unit tangent vector T and the principal unit normal vector N for r (t) = hsin (t) + 2, cos (t) + 10, 6ti

The kind of symmetry that the 2D figure has is: Option B: Line

Symmetry is defined as a specific type of rigid transformation that involves a reflection, rotation, or even translation of an object in such a manner that the resulting image is congruent to the original. Thus, symmetry is a type of transformation whereby an object is mapped onto itself in a way that preserves its shape and size.

For example, if an object has rotational symmetry, it means that it can be rotated by a certain angle and the resulting image will be congruent to the original. If an object has reflectional symmetry, it means that it can be reflected across a certain line and the resulting image will be congruent to the original.

Now, this object H will undergo a line symmetry because it is a 2D shape. A plane symmetry is used for a 3D shape.

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28 degrees is the value of h in the given diagram with vertical angles

We have to find the value of h

The two angles are vertical

We know that the vertical angles are equal

408-12h= 72

Add 12 h on both sides

408=72+12h

Subtract 72 from both sides

408-72 =12h

336 = 12h

Divide both sides by 12

h=336/12

h=28

Hence, the value of h in the given diagram with vertical angles is 28 degrees

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The formula for calculating distance covered is,

⇒ d = s × t

Where, 's' is speed of object and 't' is time.

We have to given that,

To find the formula for calculating distance covered.

Now, We know that,

We can calculate distance traveled by using the formula,

⇒ d = rt

We will need to know the rate at which you are traveling and the total time you traveled.

And, We can multiply these two numbers together to determine the distance traveled.

Thus, The formula for calculating distance covered is,

⇒ d = s × t

Where, 's' is speed of object and 't' is time.

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The change in potential function is 1.

Given line integral is ∫ (1,0,1) (2,1,0) F·dR for the conservative vector field F = (y + z²)i + (x + 1)j + (2xz + 1)k by determining the potential function and the change in this potential.

Let's find the potential function first.Using the definition of conservative fields, we know that a conservative vector field is the gradient of a potential function V(x, y, z).So, we have to find a function V(x, y, z) whose gradient is equal to F, which is the given vector field.

So, let's find the potential function V using the given vector field F.

To find the potential function, we integrate the given vector field F, such that:∂V/∂x = (y + z²)  ⇒ V = ∫ (y + z²) dx = xy + xz² + c1∂V/∂y = (x + 1) ⇒ V = ∫ (x + 1) dy = xy + y + c2∂V/∂z = (2xz + 1) ⇒ V = ∫ (2xz + 1) dz = xz² + z + c3

Therefore, the potential function V(x, y, z) = xy + xz² + y + z + C is found.To find the change in the potential function, we need to evaluate the potential function at the initial and final points of the curve.

Let's take (1, 0, 1) and (2, 1, 0) as initial and final points respectively.∆V = V(2, 1, 0) - V(1, 0, 1)= (2 × 1 × 0) + 0 + 1 + 0 + C - (1 × 0 × 1) + 0 + 0 + 1 + C= 2 + C - 1 - C = 1

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Standard deviation is a measure of the dispersion or spread of a set of data values. It quantifies the average amount of variation or deviation from the mean of a dataset, providing insight into the data's variability.

To find the 95% confidence interval for the mean difference between two dependent samples, we need to use the formula:

d-bar ± t(α/2, n-1) × s/√n

where d-bar is the mean difference, s is the standard deviation of the differences, n is the sample size, and t(α/2, n-1) is the t-value from the t-distribution with n-1 degrees of freedom and a level of significance α/2.

Using the given information, we have:

d-bar = 9.0
s = 7.81
n = 5
t(0.025, 4) = 2.776 (from t-tables or calculator)

Plugging these values into the formula, we get:

9.0 ± 2.776 × 7.81/√5
= 9.0 ± 6.51
= (2.49, 15.51)

Therefore, the most appropriate 95% confidence interval for the mean difference is (2.49, 15.51), which means we can be 95% confident that the true mean difference between the two populations lies within this range.

Answer choice (b) (-0.11, 12.76) is close but not correct, as it does not include the lower end of the confidence interval.

Answer choices (a) and (c) are too narrow, while answer choice (d) is too wide.

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The equation in the xy-plane that includes x = ln(9t) and y = t^3 is y = e^(x/3).

To find the equation in the xy-plane that includes the given parametric equations x = ln(9t) and y = t^3, we need to eliminate the parameter t.

Given x = ln(9t), we can rewrite it as t = e^(x/9).

Substituting this value of t into the equation y = t^3, we get y = (e^(x/9))^3.

Simplifying further, we have y = e^(3x/9) = e^(x/3).

Therefore, the equation in the xy-plane that includes x = ln(9t) and y = t^3 is y = e^(x/3).

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Answer:

A. a = 10, b = -9

Step-by-step explanation:

We are given:

(a+bi)-(3-5i) = 7-4i

We know that a and b are both real numbers, and we want to find what a and b are.

For imaginary numbers, a is the real part, and bi is the imaginary part. This means that we consider the real numbers like terms, and the imaginary numbers like terms.

So to start, we can open the equation to become:

a + bi - 3 + 5i = 7 - 4i

Based on what we mentioned above:
a - 3 = 7

  + 3   +3

_____________

a = 10

And:

bi + 5i = -4i

    -5i    -5i

____________j

bi = -9i

Divide both sides by i.

bi = -9i

÷i    ÷i

_________

b = -9

So, a = 10, b= -9. The answer is A.

The calculated mass of the object is 78048 grams

From the question, we have the following parameters that can be used in our computation:

length of 9 inches, a width of 7 inches, and a height of 4 inches.

So, the volume of the object is

Volume = 9 * 7 * 4

Evaluate

Volume = 252 cubic inches

Convert to cubic cm

Volume = 4129.54 cubic cm

The object’s density is 18.9 grams per cubic centimeters

So, we have

Mass = 18.9 * 4129.54

Evaluate

Mass = 78048

Hence, the mass of the object is 78048 grams

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The solution of the equation are 8 and -8

The equation is b²/4 + 45 =61

b square by four plus forty five equal to sixty one

b is the variable in the equation

We have to find the solution of the equation

b²/4 = 61-45

b²/4 =16

b²=64

b=±8

Hence, the solution of the equation are 8 and -8

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To find an explicit formula for the given recurrence relation, we need to first solve for the characteristic equation.

The characteristic equation is given by r^2 - 8r + 16 = 0. Solving this equation, we get the roots r1 = r2 = 4.

So, the general solution for the recurrence relation is dk = A(4)^k + Bk(4)^k, where A and B are constants that can be determined using the initial conditions.

Using d1 = 0 and d2 = 1, we get the following system of equations:
0 = A(4)^1 + B(1)(4)^1
1 = A(4)^2 + B(2)(4)^2
Solving these equations, we get A = -1/16 and B = 1/8.

Therefore, the explicit formula for the sequence is dk = (-1/16)(4)^k + (1/8)k(4)^k.

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The list λv1, λv2, ..., λvm is linearly independent vectos because the only solution to the equation λa1v1 + λa2v2 + ... + λamvm = 0 is a1 = a2 = ... = am = 0, given that V1, V2, ..., Vm is linearly independent and λ ≠ 0.

To prove that the list λv1, λv2, ..., λvm is linearly independent, we need to show that the only solution to the equation

a1(λv1) + a2(λv2) + ... + am(λvm) = 0

is a1 = a2 = ... = am = 0.

We can rewrite the equation as

(λa1)v1 + (λa2)v2 + ... + (λam)vm = 0

Since λ ≠ 0, we can divide each term by λ:

a1v1 + a2v2 + ... + amvm = 0

Now, we know that V1, V2, ..., Vm is a linearly independent list of vectors. Therefore, the only solution to the above equation is a1 = a2 = ... = am = 0.

Hence, we have shown that λv1, λv2, ..., λvm is linearly independent.

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The probability of getting a perfect score is 5.96×10⁻⁸.

Probability is a metric used to express the possibility or chance that a particular event will occur. Probabilities can be expressed as fractions from 0 to 1, as well as percentages from 0% to 100%.

Here, we have

Given: Each question has 4 answers to pick from, only one of which is correct for each question. Helplessly, you pick solutions at random for each question.

(a) If a random variable is the number of successes x in n repeated trials of a binomial experiment

hence our X folllow Bin(n,p)

X folllow Bin(12 , 1/4 )

f(x) = ⁿCₓ × pˣ × (1-p)ⁿ⁻ˣ,     x = 0,1,2 ............. n  , 0<p<1

(b) The probability that you pass the test:

 P( X ≥ 6 ) = 1 - P( x < 6)

= 0.0544  

(c) the average  for the class  would be the mean of the distribution, we have defined above that is mean of the binomial distribution is  np = 12(1/4 ) = 3

So, the average score the class might have is 3, if u pick it randomly.

(d) The probability of getting a perfect score:

P( X = 12 ) = 1 × ( 1/4)¹² × 1 = 5.96×10⁻⁸

Hence, the probability of getting a perfect score is 5.96×10⁻⁸.

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In the given example, the region S is a solid bounded above by the sphere [tex]$x^2+y^2+z^2=2$[/tex] and below by the paraboloid[tex]$z=x^2+y^2$[/tex]. We need to express the volume of S in spherical coordinates. The region S is symmetric with respect to the[tex]$xy$[/tex]-plane. So, the integral is taken over the upper hemisphere as well as the region above the [tex]$z$[/tex]-axis and below the paraboloid.

This implies that [tex]$\phi$[/tex] ranges from[tex]$0$ to $\pi/2$[/tex].At the intersection of the sphere and the paraboloid, we get[tex]$$x^2+y^2+z^2=2 \text{ and } z=x^2+y^2.$$[/tex] Solving this system of equations, we get [tex]$$x^2+y^2=1 \text{ and } z=1.$$[/tex] Therefore, the radius[tex]$p$[/tex] ranges from[tex]$0$ to $1$[/tex] and the angle [tex]$\theta$[/tex] ranges from [tex]$0$ to $2\pi$[/tex]. Thus, the volume of the region S in spherical coordinates is given by[tex]$$\iiint_S dp \,d\phi \,d\theta =\int_0^{2\pi}\int_0^{\pi/2}\int_0^1p^2\sin \phi \,dp\,d\phi\,d\theta.$$[/tex] Hence, the[tex]$\phi$[/tex] boundaries are determined as [tex]$\phi$ ranges from $0$ to $\pi/2$.[/tex]

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It should be noted that 0.5495 MADs separate the mean reading comprehension scores for the standard program and the activity-based program.

For the standard program:

Mean = 67.8

MAD = 4.6

n = 24

For the activity-based program:

Mean = 70.3

MAD = 4.5

n = 27

Difference in means = Activity-based program mean - Standard program mean

= 70.3 - 67.8

= 2.5

Average MAD = (Standard program MAD + Activity-based program MAD) / 2

= (4.6 + 4.5) / 2

= 4.55

Number of MADs = Difference in means / Average MAD

= 2.5 / 4.55

≈ 0.5495

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The Median Absolute Deviations (MADs) that separate the mean reading comprehension score for a standard program and an activity-based program is 0.55 MADs.

We first calculate the difference in means between the two programs.

The difference is 70.3 (mean of the activity-based program) - 67.8 (mean of the standard program) = 2.5.

Then, we calculate the average MAD by summing the MADs of the two programs and dividing by 2.

This gives us (4.6 + 4.5) / 2 = 4.55.

Finally, we divide the difference in means by the average MAD to get the number of MADs that separate the two programs.

This gives us 2.5 / 4.55 = 0.55 MADs.

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How many MADs separate the mean reading comprehension score for a standard program (mean = 67.8,

MAD = 4.6, n = 24) and an activity-based program (mean = 70.3, MAD= 4.5, n = 27)?

How many Median Absolute Deviations (MADs) separate the mean reading comprehension score for a standard program and an activity-based program?

hello

the answer to the question is:

if ax² + bx + c = 0 ----> Δ = b² - 4ac ----> Δ = 100 - 96 = 4

if Δ > 0 ----> x1,2 = (- b ± √Δ)/2a ---->

x1 = 6, x2 = 4

The 8-point Discrete Fourier Transform (DFT) of x[n] = 2cos²(nπ/4) is given by X[k] = [4, 0, 0, 0, 0, 0, 0, 0] for k = 0, 1, 2, 3, 4, 5, 6, 7.

The Discrete Fourier Transform (DFT) is used to transform a discrete-time sequence from the time domain to the frequency domain. To find the DFT of x[n] = 2cos²(nπ/4), we need to evaluate its spectrum at different frequencies.

The DFT formula for an N-point sequence x[n] is given by:

X[k] = Σ(x[n] * exp(-j2πkn/N)), for n = 0 to N-1

Here, N represents the number of points in the DFT and k is the frequency index.

Using the double-angle formula for cosine, we can express cos²(nπ/4) as (1 + cos(2nπ/4))/2.

Substituting this expression into the DFT formula, we have:

X[k] = Σ((2 * (1 + cos(2nπ/4))/2) * exp(-j2πkn/8)), for n = 0 to 7

Simplifying, we get:

X[k] = Σ((1 + cos(2nπ/4)) * exp(-j2πkn/8)), for n = 0 to 7

Using the identity exp(-j2πkn/8) = exp(-jπkn/4) for k = 0, 1, ..., 7, we can further simplify:

X[k] = Σ((1 + cos(2nπ/4)) * exp(-jπkn/4)), for n = 0 to 7

Notice that cos(2nπ/4) = cos(nπ/2), which takes on the values of 1, 0, -1, 0 for n = 0, 1, 2, 3, respectively.

Substituting these values, we find that X[k] = [4, 0, 0, 0, 0, 0, 0, 0] for k = 0, 1, 2, 3, 4, 5, 6, 7.

This means that the 8-point DFT of x[n] = 2cos²(nπ/4) has non-zero values only at the 0th frequency component (k = 0), while all other frequency components have zero amplitude.

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To solve the equation 2(3x - 4) + 1 = 5, we will follow the order of operations (PEMDAS) which is Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction in that order.

First, we will simplify the expression inside the parentheses.

2(3x - 4) + 1 = 5

6x - 8 + 1 = 5

6x - 7 = 5

Next, we will isolate the variable term by adding 7 to both sides of the equation.

6x - 7 + 7 = 5 + 7

6x = 12

Finally, we will solve for x by dividing both sides by 6.

6x/6 = 12/6

x = 2

Therefore, the solution to the equation 2(3x - 4) + 1 = 5 is x = 2.

Answer :

x = 2

Step-by-step explanation:

2(3x−4)+1=5

6x - 8 + 1 = 5

6x - 7 = 5

6x = 5 + 7

6x = 12

x = 12 : 6

x = 2

If you go twice as fast, your stopping distance will increase by four times (option C).

This relationship is based on the laws of physics and the principles of motion.

When an object is in motion, its stopping distance is influenced by its initial speed, reaction time, and braking capabilities. The stopping distance consists of two components: the thinking distance (the distance traveled during the reaction time) and the braking distance (the distance needed to bring the object to a complete stop).

According to the laws of physics, the braking distance is directly proportional to the square of the initial speed. This means that if you double your speed, the braking distance will increase by a factor of four. In other words, going twice as fast will require four times the distance to come to a stop.

It is important to note that this relationship assumes other factors, such as road conditions and braking efficiency, remain constant. However, in real-world scenarios, these factors may vary and can affect the stopping distance to some extent.

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The sample space of a probability experiment consists of all possible outcomes that can occur when an event or experiment is performed.

In this particular experiment, we are randomly choosing a number from the odd numbers between 1 and 9 inclusive.

The odd numbers between 1 and 9 are 1, 3, 5, 7, and 9. Therefore, the sample space for this experiment consists of these five possible outcomes: {1, 3, 5, 7, 9}.

Each outcome in the sample space represents a possible result of the experiment, and the probability of each outcome occurring depends on the number of possible outcomes and the conditions of the experiment.

In this case, since there are five outcomes in the sample space, each outcome has a probability of 1/5, or 0.2, of occurring.

The sample space is an important concept in probability theory as it provides a framework for understanding the possible outcomes of an experiment and calculating probabilities based on these outcomes.

By identifying the sample space and the number of outcomes in it, we can begin to make predictions and draw conclusions about the likelihood of different events occurring.

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The flux of the vector field f across the surface S is given by the surface integral Flux = ∬S f · N dS= ∫[0 to 2π] ∫[0 to h] r^5xy(cosθ - sinθ) dr dθ

To find the flux of the vector field f = x^4y i - z k across the surface S, we need to compute the surface integral of the dot product between the vector field and the surface normal vector over the surface S. The given surface is a portion of the cone z = √(x^2 + y^2).

First, let's parameterize the surface S using cylindrical coordinates. We can represent x = rcosθ, y = rsinθ, and z = √(x^2 + y^2). Substituting these expressions into the equation of the cone, we have z = √(r^2cos^2θ + r^2sin^2θ), which simplifies to z = r. Therefore, the parameterization of the surface S becomes rcosθ i + rsinθ j + r k, where r is the radial distance and θ is the azimuthal angle.

Next, we need to compute the surface normal vector for the surface S. The surface normal vector is given by the cross product of the partial derivatives of the parameterization with respect to r and θ. Taking the cross product, we have:

N = (∂/∂r) × (∂/∂θ)

= (cosθ i + sinθ j + k) × (-rsinθ i + rcosθ j)

= -r cosθ j + r sinθ i

Now, we can compute the dot product between the vector field f and the surface normal vector N:

f · N = (x^4y i - z k) · (-r cosθ j + r sinθ i)

= -r cosθ (x^4y) + r sinθ (x^4y)

= r^5xy(cosθ - sinθ)

To find the flux, we integrate the dot product f · N over the surface S. We need to determine the limits of integration for r and θ. Since the surface S is a portion of the cone, the limits for r are from 0 to h, where h represents the height of the portion of the cone. For θ, we integrate over the entire azimuthal angle, so the limits are from 0 to 2π.

Therefore, the flux of the vector field f across the surface S is given by the surface integral:

Flux = ∬S f · N dS

= ∫[0 to 2π] ∫[0 to h] r^5xy(cosθ - sinθ) dr dθ

Evaluating this double integral will provide the exact value of the flux across the surface S.

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Answer:

x = 3.5

Step-by-step explanation:

4(6x - 9.5) = 46 ← divide both sides by 4

6x - 9.5 = 11.5 ← add 9.5 to both sides

6x = 21 ← divide both sides by 6

x = 3.5

Answer:

The number of fish in the lake is given by the equation P = 600(2 + e^-0.2t).

When t = 0, the number of fish is P = 600(2 + e^0) = 600(2 + 1) = 1200.

Therefore, there are 1200 fish in the lake.

As time goes on, the number of fish will decrease exponentially. This is because the chemical factory is polluting the lake, which is killing the fish.

In 10 months, the number of fish will be P = 600(2 + e^-0.2*10) = 600(2 + 0.125) = 750.

In 20 months, the number of fish will be P = 600(2 + e^-0.2*20) = 600(2 + 0.0625) = 675.

As you can see, the number of fish is decreasing rapidly. In just 20 months, the number of fish will have decreased by more than half.

To find the logarithm using the change-of-base formula,  can apply it to evaluate 7 log base 45 of 45. Additionally, using a calculator, can find the value of n log base 9100 of 190.

   Finding the logarithm using the change-of-base formula:

   To evaluate 7 log base 45 of 45, it can use the change-of-base formula, which states that log base a of b is equal to log base c of b divided by log base c of a. Applying this formula, have:

   7 log base 45 of 45 = 7 (log base 10 of 45 / log base 10 of 45) = 7.

   Calculating n log base 9100 of 190:

   Using a calculator, can find the value of n log base 9100 of 190 by dividing the logarithm of 9100 base 10 by the logarithm of 190 base 10:

   n log base 9100 of 190 = log base 10 of 9100 / log base 10 of 190.

   Expressing log base b of (xy^6z^-9) without exponents:

   To express the expression log base b of (xy^6z^-9) without exponents, we can use logarithmic properties. Specifically, can rewrite the expression as:

   log base b of (x) + 6 log base b of (y) - 9 log base b of (z).

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Answer:

Step-by-step explanation:

The correct answer for the mean, median, and mode of the data set is:

mean: 87.2; median: 85.5; mode: 83

Mean: The mean is the average value of a data set. In this case, the mean is calculated to be 87.2.

Median: The median is the middle value of a sorted data set. In this case, the median is 85.5.

Mode: The mode is the value that appears most frequently in a data set. In this case, the mode is 83.

Therefore, the correct answer is:

mean: 87.2; median: 85.5; mode: 83

The "general-solution" of differential-equation, "x(dy/dx) + 6y = x³ - x" is y(x) = (x³/9) - (x/7) + c/x⁶.

The differential-equation is given as : x(dy/dx) + 6y = x³ - x,

We first divide the whole "differential-equation" by variable "x",

So, we get,

dy/dx + (6/x)y = x² - 1,

The next-step, we integrate, it can be written as :

y×[tex]e^{\int{\frac{6}{x} } \, dx }[/tex] = ∫[tex]e^{\int{\frac{6}{x} } \, dx }[/tex].(x² - 1),

y.x⁶ = ∫(x⁸ - x⁶).dx

y.x⁶ = x⁹/9 - x⁷/7 + c,

Dividing both the sides by x⁶, we get

y = (x⁹/9)/x⁶ - (x⁷/7)/x⁶ + c/x⁶,

So, y(x) = (x³/9) - (x/7) + c/x⁶,

Therefore, the required general-solution is y(x) = (x³/9) - (x/7) + c/x⁶.

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The given question is incomplete, the complete question is

Find the general solution of the given differential equation. x(dy/dx) + 6y = x³ - x.

the area of each face of the cube is 64 cm²

First, we need to know that the formula for calculating the volume of a cube is expressed as;

V = a³

Such that the parameters are;

Now, substitute the value, we get;

512 = a³

Find the cube root of both sides, we get;

a = ∛512

a = 8 centimeters

The formula for area of a cube is expressed as;

Area = a²

Substitute the value

Area = 8²

Find the square

Area = 64 cm²

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The equation of the ellipse that shares a vertex and a focus with the parabola x² y = 100 is ((x²)/(a²)) + ((y²)/(b²)) = 1. This equation represents an ellipse centered at the origin, with the x-axis as its major axis and the y-axis as its minor axis.

To find the equation of the ellipse, we need to determine the values of a and b, which represent the lengths of the major and minor axes, respectively. The vertex and focus of the ellipse coincide with those of the given parabola, which is in the form x²y = 100.

We start by considering the vertex. For the parabola, the vertex is located at the origin (0, 0). Hence, the center of the ellipse is also at the origin. Therefore, the x-coordinate and y-coordinate of the vertex of the ellipse are both zero.

Next, we consider the focus. In the equation of the parabola, we can rewrite it as y = 100/x². By comparing this with the standard equation of a parabola, y = 4a(x-h)² + k, where (h, k) is the vertex, we can deduce that

h = 0 and k = 0.

Thus, the focus of the parabola is located at (h, k + 1/(4a)), which in this case simplifies to (0, 1/(4a)). As the focus of the ellipse coincides with the focus of the parabola, we conclude that the focus of the ellipse is also (0, 1/(4a)).

Using the properties of the ellipse, we know that the distance between the center and either the vertex or the focus along the major axis is equal to a. In our case, the distance between the origin and the vertex is zero, so a = 0.

Also, the distance between the origin and the focus is equal to 1/(4a), so we have 1/(4a) = a. Solving this equation, we find a⁴ - 4a² - 1 = 0.

Solving this quartic equation, we find two positive real solutions for a: a = sqrt(100 + sqrt(101)) and a = sqrt(100 - sqrt(101)). These values represent the lengths of the semi-major axis of the ellipse.

Finally, we can write the equation of the ellipse as ((x²)/(a²)) + ((y²)/(b²)) = 1, where b represents the length of the semi-minor axis. Since the ellipse is symmetric, we have b = sqrt(a² - 1).

Plugging in the values of a, we obtain b = sqrt(100 - sqrt(101)).

Therefore, the equation of the ellipse that shares a vertex and a focus with the parabola x²y = 100 is ((x²)/(a²)) + ((y²)/(b²)) = 1,

where a = sqrt(100 + sqrt(101)) and b = sqrt(100 - sqrt(101)).

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Ordering Tashia's loan options from least to greatest finance charge is as follows:

A finance charge refers to the interest and other fees charged to a borrower for the extension of credit.

The finance charge is represented by the APR (annual percentage rate).

The finance charge can be computed using an online finance calculator as follows:

Loan Option      Principal    Monthly Payment   Loan Term

Option A         $18,000.00        $313. 30           60 months

Option B         $17,000.00       $365. 24           48 months

Option C        $15,000.00        $326. 48           4 years

Option A:

N (# of periods) = 60 months

PV (Present Value) = $18,000

PMT (Periodic Payment) = $-313.30

FV (Future Value) = $-0

Results:

I/Y = 1.720% if interest compound 12 times per year (APR)

I/Y = 1.734% if interest compound once per year (APY)

I/period = 0.143% interest per period

Sum of all periodic payments = $18,798.00

Total Interest = $798.00

Option B:

N (# of periods) = 48 months

PV (Present Value) = $17,000

PMT (Periodic Payment) = $-365. 24

FV (Future Value) = $-0

Results:

I/Y = 1.516% if interest compound 12 times per year (APR)

I/Y = 1.527% if interest compound once per year (APY)

I/period = 0.126% interest per period

Sum of all periodic payments = $-17,531.52

Total Interest = $531.52

Option C:

N (# of periods) = 48 months

PV (Present Value) = $15,000

PMT (Periodic Payment) = $-326. 48

FV (Future Value) = $-0

Results:

I/Y = 2.161% if interest compound 12 times per year (APR)

I/Y = 2.182% if interest compound once per year (APY)

I/period = 0.180% interest per period

Sum of all periodic payments = $15,671.04

Total Interest = $671.04

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Answer:

  (a) p = d +2; p = d - 1

Step-by-step explanation:

You want to know the pair of equations modeling the relationships ...

The phrase "2 more than d" means that 2 is added to d. The only offered pair of equations that has 2 added to d is ...

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Additional comment

Likewise, "1 less than variable d" means that 1 is subtracted from d: d -1. This is more about reading comprehension than it is about math.

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