What is the value of x in this triangle?

Answer:

a) AE and CD

b) AE and ED

c) AED and CDE

The change in radius is supposed to be 2.04 units to get 800 as volume.

To calculate the volume of a cylinder, we use the formula V = πr^2h, where V represents the volume, r represents the radius, and h represents the height.

Given that the height is fixed at 10 units, and the volume is desired to be 800 cubic units, we can rearrange the formula to solve for the radius:

V = πr^2h

800 = πr^2(10)

To isolate the radius, we divide both sides of the equation by π * h * 10:

800 / (π * 10) = r²

Simplifying further:

80 / π = r²

To find the value of the radius, we take the square root of both sides:

√(80 / π) = r

Using a calculator to approximate the square root of 80 divided by π, we find:

r ≈ 5.04

Therefore, to achieve a volume of 800 cubic units while keeping the height at 10 units, the radius would need to be approximately 5.04 units.

And change would be 5.04-3 = 2.04.

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Are these two triangles similar: B. Yes, using SAS.

In Mathematics and Geometry, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

Additionally, the lengths of corresponding sides or corresponding side lengths are proportional to the lengths of corresponding altitudes when two (2) triangles are similar.

Based on the side, angle, side (SAS) similarity theorem, we can logically deduce that ∆EIF is congruent to ∆HIG when the angles F (∠F) and (∠G) are congruent.

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The quantity of the street that is being covered by the light would be = 226.87 m². That is option A.

To calculate the area of the circle, the formula that should be used is given as follows;

Area or circle = π r²

where r = Diameter/2

But diameter = 17/2

radius = 8.5

Area of circle = 3.14×8.5×8.5

= 226.87 m²

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The given parabola 8(y-2) = (x + 2)², the focus is (-2, 4), the directrix is y = 6, the vertex is (-2, 2), and the axis of symmetry is the vertical line x = -2.

To find the focus, directrix, vertex, and axis of symmetry of a parabola in standard form, we can rewrite the given equation as y = (1/8)(x + 2)² + 2. Comparing this equation with the standard form y = a(x - h)² + k, we can determine the values of h, k, and a. From the equation, we can see that the vertex is given by (h, k), which in this case is (-2, 2). The vertex represents the point where the parabola reaches its minimum or maximum value.

The axis of symmetry is a vertical line passing through the vertex. Therefore, the axis of symmetry for this parabola is x = -2.

The focus of a parabola is a point that lies on the axis of symmetry and is equidistant from the directrix. The distance between the focus and the vertex is given by the equation |1/(4a)|, where a is the coefficient of the x-term. In this case, a = 1/8, so the distance between the focus and the vertex is |1/(4(1/8))| = |2| = 2. Since the vertex is at (-2, 2), the focus is located at (-2, 2+2) = (-2, 4).

The directrix of a parabola is a line perpendicular to the axis of symmetry and is equidistant from the focus. Since the vertex is at (h, k) = (-2, 2) and the focus is at (-2, 4), the directrix is a horizontal line located at y = 2 + 2 = 6.

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The equation of the line with a slope of -3 and passing through the point (4, -5) is y = -3x + 7.

The equation of a line can be expressed in slope-intercept form: y = mx + b, where m represents the slope and b represents the y-intercept.

Given:

Slope (m) = -3

Point (4, -5)

Substituting the given slope and point into the equation, we have:

-5 = -3(4) + b

-5 = -12 + b

b = 7

Now that we have the value of b, we can write the equation of the line:

y = -3x + 7

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Answer:

x = 10.1785714286 which rounds to 10.2

y = 15.25 which rounds to 15.3

Step-by-step explanation:

The 4 angles inside any quadrilateral = 360

We know that 1 angle is 105. So that means the other 3 angles are:

360-105 = 255

Also, any 2 adjacent angles in a quadrilateral = 180.

So 105 + (4y+14) = 180.

Let's solve for y.

105 + (4y+14) = 180

4y+14 = 75

4y=61

y=15.25

Now let's solve for X - - -

We know that the 3 angles OTHER than the 105 add to 255.

4y+14 + 7y+1 + 7x+1 = 255

11y+16+7x=255

11y+7x=239

If y = 15.25, plug that in and solve for x.

11y + 7x = 239

11(15.25) + 7x = 239

167.75 + 7x = 239

7x = 71.25

x = 10.1785714286

Let's double check that everything adds to 360:

105 + 4y+14 + 7y+1 + 7x+1 = 360

105 + 4(15.25) + 14 + 7(15.25) + 1 + 7(10.18) + 1 = 360

Answer:

x = 19

Step-by-step explanation:

Use the Intersecting Secants Theorem to solve this:

8(8 + x) = 9(9 + 15)

64 + 8x = 81 + 135

8x = 216 - 64 = 152

x = 152/8 = 19

We can approximate the distribution of x to a normal distribution with mean μ = 3 and variance σ² = 3(1-3/n).

When n is large, the binomial distribution with parameters n and p can be approximated by a normal distribution with mean μ = np and variance σ² = np(1-p). This is known as the normal approximation of the binomial distribution.

In this case, x is a binomial distribution with parameters n and p = 3/n. As n gets larger, p gets smaller and the normal approximation becomes more accurate.

Therefore, we can approximate the distribution of x to a normal distribution with mean μ = 3 and variance σ² = 3(1-3/n).

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Given question is incomplete, the complete question is below

if x is a random variable the binomial distribution, b(n, 3/n). What distribution can you approximate the distribution of x to for large n?

To expand the function f(x) = 1/6 + x^8 into a power series with center c = 0, we can use Eq. (1) from the text, which states that:

f(x) = ∑[n=0 to ∞] (f^(n)(c)/n!)(x-c)^n

Plugging in c = 0 and f(x) = 1/6 + x^8, we get:

f(x) = ∑[n=0 to ∞] [(d^n/dx^n)(1/6) / n!] x^n + ∑[n=0 to ∞] [(d^n/dx^n)(x^8) / n!] x^n

The first term simplifies to (1/6) ∑[n=0 to ∞] (0 / n!) x^n = 1/6, while the second term simplifies to ∑[n=0 to ∞] (x^(n+8) / n!) = ∑[n=8 to ∞] (x^n / (n-8)!).

Therefore, the power series expansion of f(x) is:

f(x) = 1/6 + ∑[n=8 to ∞] (x^n / (n-8)!)

The interval of convergence can be determined using the ratio test, which gives:

lim[n→∞] |(x^(n+1) / ((n-7)!)) / (x^n / ((n-8)!))| = lim[n→∞] |x / (n-7)| = 0

This limit is less than 1 for all values of x, which means that the power series converges for all x. Therefore, the interval of convergence is (-∞, +∞)

To answer the question, we first need to use Eq. (1) from the text to expand the function f(x) = 1/6 + x^8 into a power series with center c = 0. We then simplify the two terms using the derivatives of 1/6 and x^8, respectively. Finally, we determine the interval of convergence using the ratio test.

The power series expansion of f(x) is 1/6 + ∑[n=8 to ∞] (x^n / (n-8)!), and it converges for all values of x, which means that the interval of convergence is (-∞, +∞).

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The Taylor polynomials [tex]p_{4}[/tex] and [tex]p_{5}[/tex] centered at [tex]a = \frac{\pi}{6}[/tex] for f(x) = 5cos(x) are:

[tex]p_{4}(x) = \frac{ 5\sqrt{3}}{2} - \frac{5}{2} (x - \frac{\pi }{6}) - \frac{ 5\sqrt{3}}{4} (x - \frac{\pi }{6})^2+ \frac{5}{8}(x - \frac{\pi }{6})^3+ \frac{ 5\sqrt{3}}{48}(x - \frac{\pi }{6})^4[/tex][tex]p5(x) = p_{4}(x) = \frac{ 5\sqrt{3}}{2} - \frac{5}{2} (x - \frac{\pi }{6}) - \frac{ 5\sqrt{3}}{4} (x - \frac{\pi }{6})^2+ \frac{5}{8}(x - \frac{\pi }{6})^3+ \frac{ 5\sqrt{3}}{48}(x - \frac{\pi }{6})^4 - \frac{5}{384}(x - \frac{\pi }{6} )^6[/tex]

To find the Taylor polynomials centered at [tex]a = \frac{\pi}{6}[/tex] for f(x) = 5cos(x), we need to find the derivative of the function at [tex]x = \frac{\pi}{6}[/tex].  The first derivative of f(x) = 5cos(x) is -5sin(x), and the second derivative is -5cos(x).

Evaluating these derivatives at [tex]x = \frac{\pi}{6}[/tex] gives us

[tex]-5sin(\frac{\pi }{6}) = -\frac{5}{2}[/tex] and [tex]-5cos(\frac{\pi }{6}) = -\frac{5\sqrt{3} }{2}[/tex].

The Taylor polynomial [tex]p_{4}(x)[/tex] is then constructed using these derivatives and the powers of [tex]x - \frac{\pi}{6}[/tex] up to the fourth power.

Similarly, for [tex]p_{5}(x)[/tex], we add the fifth derivative term. Simplifying the expressions gives us the Taylor polynomials [tex]p_{5}(x)[/tex] and [tex]p_{4}(x)[/tex] center [tex]= \frac{\pi }{6}[/tex] for f(x) = 5cos(x).

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a - The lines are parallel

b - The lines perpendicular

c - The lines are perpendicular

Based on their slopes, lines' equations can be categorized as parallel or perpendicular. A line's slope can be used to determine how steep or flat a line is. The slopes of two lines interact to determine whether two lines are parallel, perpendicular, or neither.

We can see that when the slope of the second line is inverse to the slope of the first line then  we can say that the lines are perpendicular but when the slopes are the same, we can say that the lines are parallel.

In a, the slope of tghe first line is 2 and so is the slope of the second line thus they are parallel. In b, the slope of the first line is 3 while the slope of the second line is -1/3 thus they are perpendicular.

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The required measure of arc BD is 76°.

A figure of a circle is shown,
Where mCB is 136°  and subtended by points C and D at B is 74°.
The measure of the arc CD is given as,
= 2 * 74
= 148

Now, BD is given as,
mBD + mCD + mCB = 360
mBD + 148 + 136 = 360
mBD = 76

Thus, the required measure of arc BD is 76°.

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If Deja's grandparents are paying for 80% (percentage) of her first year's expenses, the amount that Deja needs to pay for is $3,560.40.

The amount that Deja needs to pay is computed as the difference between 100% of the total expenses and 80%.

The percentage refers to the ratio of one value, quantity, or number compared to another.

Tuition & Fees = $8,232

Housing Books = $6,540

Supplies = $1,130

Transportation = $1,900

Total expenses = $17,802

80% of first year's expenses = $14,241.60 ($17,802 x 80%)

20% (100% - 20%) of the expenses = $3,560.40 ($17,802 x 20%)

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XY is less than 14,  MR is less than 10.5, if DE || AB, AC = 15, DC = 10, and EC = 8 then BE is equal to 18.75, the sides are not proportional and DE is not parallel to AB.

To find XY, we can use the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Using this theorem, we have:

WZ + ZX > WY

6 + 8 > 9

14 > 9

XY must be less than the sum of WZ and ZX. Therefore, XY is less than 14.

To find MR,

RS + ST > RT

6 + 4 1/2 > 3

10.5 > 3

Since the inequality holds true, we can conclude that MR must be less than the sum of RS and ST. Therefore, MR is less than 10.5.

By the similar triangles property:

EC/DC = AC/BC

Substituting the given values:

8/10 = 15/BC

Cross-multiplying:

8 × BC = 10 × 15

BC = 150/8

BC = 18.75

BC=BE

BE is equal to 18.75.

If DE is parallel to AB, then the ratio of the lengths of the corresponding sides AD and BE should be equal.

Using the given lengths:

AD/BE = 4/3

Ratio does not equal 1, which means the sides are not proportional and DE is not parallel to AB.

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Answer:

answer below

Step-by-step explanation:

a) will be all of them

b)will be all of their unions, so the values they all have in common in this case 4, 6

c)will be the values in common with a and b and all of c,

d)will be all of the values of a and b and all of the values in common with c

sorry I csnnot give an actual answer at the moment, but i can explain what each question wants from you in literal word form.

The number (up to isomorphism) of abelian groups of order n is different from the number (up to isomorphism) of abelian groups of order m, unless n and m are isomorphic.

To understand why, consider the fact that the number of abelian groups of a given order is determined by the prime factorization of that order. Specifically, the number of abelian groups of order p^n is equal to the number of partitions of n, where p is a prime number. Thus, the number of abelian groups of a given order is determined by the prime factorization of that order.

If two orders have different prime factorizations, then the numbers of abelian groups of those orders will be different. For example, the number of abelian groups of order 12 is different from the number of abelian groups of order 15, since 12 and 15 have different prime factorizations. On the other hand, if two orders have the same prime factorization, then the numbers of abelian groups of those orders will be the same (up to isomorphism), since the number of abelian groups of an order is determined solely by the prime factorization of that order.

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The missing number of the set is 19 or 49.

We are given that;

The number series 21, 26, 33, 35, 44, 47

Now,

The range is the difference between the maximum and minimum values in the data set. Here are the steps to find the missing number:

First, we need to identify the maximum and minimum values in the data set. The maximum value is 47 and the minimum value is 21.

Next, we need to subtract the minimum value from the maximum value to find the range. This gives us 47 - 21 = 26.

Since we are given that the range is 28, we need to find a number that would make the range 28. This means that we need to either increase the maximum value or decrease the minimum value by 2.

One possible way to do this is to replace 21 with 19. This would make the minimum value 19 and the range 47 - 19 = 28.

Another possible way to do this is to replace 47 with 49. This would make the maximum value 49 and the range 49 - 21 = 28.

Therefore, by the given range the answer will be 19 or 49.

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The power factor in a system is defined as the cosine of the angle between the voltage and current waveforms. The power factor in this system is 0.906, indicating a relatively efficient use of power.

In this case, the voltage waveform is given as V = 120V sin(377t + 20°) and the current waveform is given as I = 60A sin(377t + 45°). To find the power factor, we need to determine the angle between the voltage and current waveforms. First, let's convert the voltage and current waveforms to phasor form:
V = 120V ∠ 20°
I = 60A ∠ 45°
The angle between the voltage and current phasors is given by:
θ = θv - θi = 20° - 45° = -25°
The power factor is the cosine of this angle, so:
PF = cos(-25°) = 0.906

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The probability of randomly choosing a square and the letter "I" together is 0.0227.

Probability of choosing a given square:

The total number of possible outcomes = 16

The probability of choosing a particular square = 1/16

The probability of choosing a particular letter in MISSISSIPPI:

Let the letter be "I"

There are 4 "I"s in MISSISSIPPI out of a total of 11 letters

The probability of choosing an "I" = 4/11.

The probability of choosing a square and the letter "I" = (1/16) × (4/11)

The probability of choosing a square and the letter "I"  = 4/176 or 0.0227.

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The calculated value of the expression sinA ÷2 is 0.8310

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

To calculate sinA ÷2, we substitute 112,4°  for A in the expression

Using the above as a guide, we have the following:

sinA ÷2 = sin(112.4 ÷2)

Evaluate the quotient in the above equation

So, we have

sinA ÷2 = sin(56.2)

Using a calculator, we take the sine value of 56.2 degrees

This gives

sinA ÷2 = 0.8310

Hence, the value of the expression sinA ÷2 is 0.8310

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The area of the hexagon is 81 square meters, and the perimeter is 18√3 meters.

To calculate the area and perimeter of the given shape, we need to identify the shape. Based on the given dimensions of 3√3 m for one side and 6 m for another side, it appears that we are dealing with a regular hexagon.

A regular hexagon has six equal sides and six equal angles. The formula for the area of a regular polygon is A = ½ * a * P, where "a" is the length of one side and "P" is the perimeter.

Given that one side of the hexagon is 3√3 m, we can calculate the perimeter:

Perimeter = 6 * side length = 6 * (3√3) m = 18√3 m

To calculate the area, we use the formula:

Area = ½ * a * P = ½ * (3√3) * (18√3) = 27√3 * √3 = 27 * 3 = 81 m²

Therefore, the area of the hexagon is 81 square meters, and the perimeter is 18√3 meters.

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The product (k-1) (6k+5) is C, [tex]6k^2 - k - 5.[/tex] therefore, option C, [tex]6k^2 - k - 5.[/tex] is correct.

To find the product of (k-1) and (6k+5), we can use the distributive property of multiplication.

We can multiply each term in the first expression (k-1) by each term in the second expression (6k+5), and then simplify:

[tex](k-1)(6k+5) = k(6k+5) - 1(6k+5)\\(k-1)(6k+5) = 6k^2 + 5k - 6k - 5\\(k-1)(6k+5) = 6k^2 - k - 5[/tex]

Therefore, the answer is C, [tex]6k^2 - k - 5.[/tex]

We can check our answer by multiplying it out using the distributive property, and we should get the original expressions (k-1) and (6k+5) back.

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The Number of tenths in 37.6 is 37.6 or 37 6/10 or 37 3/5 so the correct answer was given by Student 2

A decimal is simply another way of representing a fraction with a denominator of 10, 100, 1000, or any power of 10. In other words, the decimal point separates the whole number part from the fractional part, with each digit to the right of the decimal point representing a different power of 10.

The teacher asked how many tenths are equivalent to 37.6, which means we're looking for a fraction with a denominator of 10. To figure out the answer, we need to convert 37.6 into a fraction with a denominator of 10.

To do this, we look at the digit in the tenths place, which is 6. This tells us that 37.6 is equivalent to 37 and 6 tenths,

= 37 6/10.

We can simplify this fraction by dividing both the numerator and denominator by their greatest common factor, which in this case is 2.

= 37 3/5.

So, which student is correct? Student 2 answered 37.6 tenths, which is equivalent to 37 and 6 tenths, or 37 6/10. This means that Student 2's answer is correct.

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The probability of Z being less than 0.618 is approximately 0.7314. the probability of P(0.7 < X < 0.75) is approximately 0.7314.

a. The mean of X1 can be found by taking the expected value of the distribution:

E(X1) = ∫0^10 x f(x) dx

= ∫0^10 x[(3x^2)/2 + x] dx

= 78.75/4

= 19.6875

Therefore, the mean of X1 is 19.6875.

b. The variance of X1 can be found using the formula:

Var(X1) = E(X1^2) - [E(X1)]^2 E(X1^2) can be found by taking the second moment of the distribution:

E(X1^2) = ∫0^10 x^2 f(x) dx

= ∫0^10 x^2 [(3x^2)/2 + x] dx

= 1095/8

Therefore,

Var(X1) = 1095/8 - (78.75/4)^2

= 16.3203125

c. Using the central limit theorem, we can approximate the distribution of the sample mean with a normal distribution.

The mean of the sample mean is the same as the population mean, which we found to be 19.6875 in part a. The variance of the sample mean can be found by dividing the population variance by the sample size:

Var(X) = Var(X1)/n

= 16.3203125/100

= 0.163203125

Then, we can standardize the sample mean using the formula:

Z = (X - μ)/(σ/√n)

where μ is the population mean, σ is the population standard deviation (which we found to be √Var(X1) ≈ 4.0407), and n is the sample size.

Plugging in the values, we get:

Z = (0.725 - 0.7)/(4.0407/√100)

= 0.618

Using a standard normal distribution table or calculator, we can find that the probability of Z being less than 0.618 is approximately 0.7314. Therefore, the probability of P(0.7 < X < 0.75) is approximately 0.7314.

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The parametric equations for the line through $(8,-9,9)$ parallel to the $-axis$ are $x = 8$, $y = -9 + t$, and $z = 9$.

Since the line is parallel to the $-axis$, we know that the direction vector of the line is $\langle 0, 1, 0 \rangle$. We can use this information to write the parametric equations of the line as:

x=8+0t+=8

y=-9+1t=-9+t

z=9+0t==9

where $t$ is a parameter. Therefore, the parametric equations for the line through $(8,-9,9)$ parallel to the $-axis$ are $x = 8$, $y = -9 + t$, and $z = 9$.

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The approximate surface area available for the​ label is 26 in²

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

Radius, r = (3/2) meters

Height, h = 2 meters

See attachment for complete question

Using the above as a guide, we have the following:

Area available for label = Area of cylinder - Circle area

So, we have

Area available for label = 2πr(r + h) - πr²

Substitute the known values in the above equation, so, we have the following representation

Surface area = 2π * (3/2) * (3/2 + 2) - π * (3/2)²

Evaluate

Surface area = 26

Hence, the approximate surface area available for the​ label is 26 in²

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The expression 15+3(x-4) is equivalent to 3x +3 which is option B . I hope that helps!

The values of x and y are:

(x, y) Smaller x-value = (0, 0)

(x, y) Larger x-value =  [tex](\frac{4}{3} (2^{1/3} ), \ \frac{4}{3} (2^{2/3} ))[/tex]

Given that f(x, y) = [tex]2x^{2}-8xy+y^{3}[/tex]

Now, [tex]f_{x} (x,y) = \frac{d}{dx} (2x^{3} -8xy+y^{3})[/tex]

[tex]=6x^{2} -8y+0[/tex] (when we take partial derivative with respect to any variable, then the other variables are treated as constants)

[tex]=6x^{2} -8y[/tex]

Similarly, [tex]f_{y} (x,y) = \frac{d}{dy} (2x^{3} -8xy+y^{3})[/tex]

[tex]=0-8x+3y^{2}[/tex]

[tex]=-8x+3y^{2}[/tex]

Now set  [tex]f_{x}[/tex] = 0 and [tex]f_{y}[/tex] = 0

That is [tex]f_{x}[/tex] = 0 ⇒ [tex]6x^{2} -8y=0[/tex] ⇒ [tex]y = \frac{\ 3x^{2} }{4}[/tex] ----------(1)

and [tex]f_{y}[/tex] = 0 ⇒ [tex]-8x + 3y^{2} = 0[/tex] ⇒ [tex]x=\frac{\ 3y^{2} }{8}[/tex] ----------(2)

Solving (1) and (2) we get:

[tex]x=\frac{3}{8}(\frac{3x^{2} }{4} )^{2} \Rightarrow\ x=\frac{\ 27x^{2} }{128} \Rightarrow \ 27x^{2} -128x=0[/tex]

[tex]\Rightarrow x\ (27x^{3} -128)=0[/tex]

x will have two values,

[tex]\Rightarrow x=0[/tex] or,

[tex]x^{3} = \frac{128}{27}\ \Rightarrow\ x^{3} = \frac{2\ \times\ 4^{3} }{3^{3} } \Rightarrow\ x=\frac{4}{3}(\sqrt[3]{2} )[/tex]

Similarly, y will have two values,

[tex]y = \frac{3}{4} (\frac{128}{27} )^{2/3}[/tex] [tex]\Rightarrow \ (\frac{4}{3} )2^{2/3}[/tex] or,

y = 0

Therefore, the final answers are,

(x, y) Smaller x-value = (0, 0)

(x, y) Larger x-value =  [tex](\frac{4}{3} (2^{1/3} ), \ \frac{4}{3} (2^{2/3} ))[/tex]

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The annual interest rate on the $5600 loan, with $1008 of interest accrued over 4 years, is 4.5%, as calculated using the formula for simple interest. Option B.

To find the annual interest rate, we can use the formula for simple interest: I = P * R * T, where I is the interest, P is the principal amount (loan amount), R is the interest rate, and T is the time in years.

Given that the loan amount is $5600 and the interest after 4 years is $1008, we can rearrange the formula to solve for R. In this case, R = (I / P) / T = (1008 / 5600) / 4 = 0.045 = 4.5%. Therefore, the annual interest rate on the loan is 4.5%. The correct answer is option (b) 4.5%.

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