Find average rate of change for the function over the given interval.
y = x² + 6x between x = 4 and x = 8
a. 28
b. 9
c. 14
d. 18

Q.1) The component form of vector P is (5, 7, -1) and the component form of vector Q is (2, 9, -2).

Q.2)  2i - j - (2/3)k

Q.3) The equation of the plane is:

3x - 2y - z = -4

Q.1) Component form of vectors P(5,7,-1) and Q(2,9,-2):

The component form of a vector is written as (x,y,z), where x, y and z are the components of the vector along the x, y, and z axes respectively.

Therefore, the component form of vector P is (5, 7, -1) and the component form of vector Q is (2, 9, -2).

Q.2) Vector projection of u=6i+3j+2k and v=i−2j−2k and scalar component of u in the direction of v:

Let's first calculate the magnitude of vector v:

|v| = sqrt(i^2 + (-2)^2 + (-2)^2) = sqrt(1 + 4 + 4) = sqrt(9) = 3

Now, let's calculate the dot product of u and v:

u.v = (6i+3j+2k).(i-2j-2k) = 61 + 3(-2) + 2*(-2) = -4

Now, let's find the magnitude of vector u:

|u| = sqrt((6)^2 + (3)^2 + (2)^2) = sqrt(49) = 7

Using the formula for vector projection, we can find the vector projection of u onto v as follows:

proj_v u = (u.v / |v|^2) * v

= (-4 / (3)^2) * (i-2j-2k)

= (-4/9)i + (8/9)j + (8/9)k

To find the scalar component of u in the direction of v, we just need to take the dot product of u and the unit vector of v:

|v| = 3

v_hat = v/|v| = (1/3)i - (2/3)j - (2/3)k

u_v = u.v_hat = (6i+3j+2k).(1/3)i - (2/3)j - (2/3)k

= (6/3)i + (3/-3)j + (2/-3)k

= 2i - j - (2/3)k

Q.3) Equation of plane through the point P(0,2,-1) and normal to n=3i−2j−k:

The equation for a plane is of the form ax + by + cz = d, where (a,b,c) is the normal vector to the plane and d is a constant.

Here, the normal vector to the plane is given as n = 3i - 2j - k. We can use this information to find the equation of the plane.

Let's substitute the coordinates of the point P(0,2,-1) into the equation of the plane:

3(0) - 2(2) - 1(-1) = d

-4 = d

Therefore, the equation of the plane is:

3x - 2y - z = -4

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The missing step is d. "Statement: <angle> is congruent to <angle> Reason: Transitive property of similarity."

The given statement is: "<angle> and <angle> are right angles."

The reasons provided in the proof are: "Given" and "All right angles are congruent."

The correct answer is d. The missing step in the proof should be: "Statement: <angle> is congruent to <angle> Reason: Transitive property of similarity."

The missing step is necessary to establish the congruence between the angles mentioned in the statement. The transitive property of similarity allows us to conclude that if two angles are congruent to a third angle, then they are congruent to each other.

Therefore, by using the transitive property, we can establish the congruence between <angle> and <angle>, completing the proof that they are right angles.

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For each question below, mark whether or not the statement is correct. 1. 3n^4 + 2n = O(n^0) - No, 2. 4n + 45 log n = O(n) - Yes, 3. 5n = 2^(m+) - No, 4. 2n + 2 = 2^n - Yes, 5. 3n^5 + n + n = O(n^5) - Yes,

The correct answers are as follows:

1. 3n^4 + 2n = O(n^0) is incorrect. The correct answer is No because the polynomial expression has a higher degree than n^0, indicating a higher time complexity.

2. 4n + 45 log n = O(n) is correct. The expression represents linear time complexity as it grows linearly with the input size n.

3. 5n = 2^(m+) is incorrect. The correct answer is No because the expression represents an exponential relationship between 5n and 2^m, indicating a higher time complexity.

4. 2n + 2 = 2^n is correct. The expression represents an exponential relationship where 2^n grows significantly faster than 2n.

5. 3n^5 + n + n = O(n^5) is correct. The expression represents a polynomial relationship with the highest term being n^5, indicating a time complexity of O(n^5).

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The absolute maximum value of h(t) is 4, and the absolute minimum value of h(t) is 3.

The given function is $h(t)=4t-\frac{t^2}{1}$.

Find the absolute maximum value and the absolute minimum value, if any, of the given function.

(If an answer does not exist, enter DNE.) on the interval [1, 3].

We begin by computing the first and second derivatives of the given function in order to identify the critical values and intervals of increasing and decreasing.

h'(t) = 4 - 2th''(t) = -2

Based on the first derivative test, the critical points are at t = 2 and t = 0.

For t in (1, 2), h'(t) > 0, so h(t) is increasing.

For t in (2, 3), h'(t) < 0, so h(t) is decreasing.

Thus, the maximum of h(t) occurs at t = 2.

The absolute maximum value of h(t) on the interval [1, 3] is h(2) = 4(2) - (2^2) = 4.

The minimum of h(t) occurs at an endpoint of the interval [1, 3] since h(t) is increasing for t in (1, 2) and decreasing for t in (2, 3).

The absolute minimum value of h(t) on the interval [1, 3] is h(1) = 4(1) - (1^2) = 3.

The absolute maximum value of h(t) is 4, and the absolute minimum value of h(t) is 3.

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Derivative y' is 2([tex]x^2[/tex] + 2x + 8) * (2x + 2) and slope is 368. The equation of the tangent line is y = 368x - 575.

To find y' (the derivative of y) and the slope of the tangent line at the point (3, 529) for the function y = [tex](x^2 + 2x + 8)^2[/tex], we need to differentiate the function and evaluate it at x = 3.

First, let's find y':

Using the chain rule, we can differentiate y with respect to x:

y' = 2([tex]x^2[/tex] + 2x + 8) * (2x + 2).

Simplifying further, we have:

y' = 4([tex]x^2[/tex] + 2x + 8)(x + 1).

Now, let's find the slope of the tangent line at (3, 529) by evaluating y' at x = 3:

y'(3) = 4([tex]3^2[/tex] + 2(3) + 8)(3 + 1)

= 4(9 + 6 + 8)(4)

= 4(23)(4)

= 368.

Therefore, the slope of the tangent line at (3, 529) is 368.

To find the equation of the tangent line in the form y = mx + b, we have the slope (m) as 368 and the point (3, 529).

Using the point-slope form, we can substitute the values into the equation:

y - y1 = m(x - x1),

y - 529 = 368(x - 3),

y - 529 = 368x - 1104,

y = 368x - 575.

Rounding the slope and y-intercept to 3 decimal places, the equation of the tangent line at (3, 529) is:

y = 368x - 575.

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The integral of the given expression ∫(4x³ + 6x) cos(x⁴ + 3x² + 5) dx using substitution is equal to sin(x⁴ + 3x² + 5) + C.

To evaluate the integral ∫(4x³ + 6x) cos(x⁴ + 3x² + 5) dx using the substitution u = (x⁴ + 3x² + 5),

Follow these steps,

Find du/dx,

Differentiating u = (x⁴ + 3x² + 5) with respect to x, we get,

du/dx = 4x³ + 6x

Rearrange the equation to solve for dx,

dx = du / (4x³ + 6x)

Substitute the value of u and dx into the integral,

∫(4x³ + 6x) cos(x⁴ + 3x² + 5) dx

= ∫(4x³ + 6x) cos(u) (du / (4x³ + 6x))

Simplify the integral,

Notice that the term (4x³ + 6x) cancels out in the numerator and denominator. We are left with,

∫ cos(u) du

Evaluate the integral of cos(u),

∫ cos(u) du = sin(u) + C, where C is the constant of integration.

Substitute back the value of u,

sin(u) + C = sin(x⁴ + 3x² + 5) + C

Therefore, the result of the integral is ∫(4x³ + 6x) cos(x⁴ + 3x² + 5) dx = sin(x⁴ + 3x² + 5) + C.

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The above question is incomplete, the complete question is:

Use the substitution u= (x⁴ + 3x² + 5) to evaluate the

∫(4x³ +6x) cos(x⁴ + 3x² +5) dx

A polynomial of degree 4 with real coefficients and the given zeroes is:

[tex]f(x) = (x - 1)^4 + 9(x - 1)^2[/tex]

If we have the zeroes 1 (multiplicity 2) and 1 - 3i, then we know that the corresponding factors are (x - 1)(x - 1)(x - (1 - 3i))(x - (1 + 3i)). Since the polynomial has real coefficients, the complex conjugate zeroes come in pairs.

Expanding these factors, we get:

(x - 1)(x - 1)(x - (1 - 3i))(x - (1 + 3i))

= (x - 1)(x - 1)(x - 1 + 3i)(x - 1 - 3i)

= (x - 1)(x - 1)(x^2 - 2x + 1 + 9)

[tex]= (x - 1)^2(x^2 - 2x + 10)[/tex]

Multiplying the remaining factors, we have:

[tex](x - 1)^2(x^2 - 2x + 10)\\= (x - 1)^2(x^2 - 2x + 1 + 9)\\= (x - 1)^2(x^2 - 2x + 1) + (x - 1)^2(9)\\= (x - 1)^4 + 9(x - 1)^2[/tex]

Therefore, a polynomial of degree 4 with real coefficients and the given zeroes is:

[tex]f(x) = (x - 1)^4 + 9(x - 1)^2[/tex]

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Assuming that the average recurrence interval of the fault is 150 years, with the last earthquake occurring in 1857, the next slip event would occur in 2007.

The average recurrence interval describes the average occurence of an event of interest in the past.

The average recurrence interval can be computed as the quotient resulting from the division of the number of years in the record (N) by the the number of events (n).

For instance, if an event has occurred 5 times within 100 years, we can compute the average recurrence interval as 20 years (100 ÷ 5).

The number of years the fault has occurred = 1,500 years

The number of times the fault has occurred = 10

Average recurrence interval = 150 (1,500 ÷ 10).

Last occurrence of earthquake = 1857

Average recurrence interval = 150

Next predicted earthquake year = 2007 (1857 + 150)

Thus, we should expect the earthquake to occur in 2007, given the fault's average recurrence interval.

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For the past 1,500 years, the fault has occurred 10 times.

The value of the limit is 2.71828.

We have,

To estimate the value of the limit lim x→0 [tex](1 + x)^{1/x},[/tex] we can use the concept of exponential growth. As x approaches 0, the expression

(1 + x)^(1/x) resembles the form of the exponential function [tex]e^t[/tex], where t is the exponent.

Let's rewrite the expression as follows: [tex]f(x) = e^t,[/tex] where t = 1/x.

To estimate the limit, we need to find the value of t as x approaches 0. Let's calculate the values of t for smaller and smaller values of x:

For x = 1: t = 1/1 = 1

For x = 0.1: t = 1/0.1 = 10

For x = 0.01: t = 1/0.01 = 100

For x = 0.001: t = 1/0.001 = 1000

As you can see, as x approaches 0, t becomes larger and larger.

This indicates that the limit is an extremely large number.

Now, let's evaluate the value of the limit using a calculator"

lim x → 0 [tex](1 + x)^{1/x} = 2.71828[/tex]

The number 2.71828 is a well-known mathematical constant called "e," Euler's number. It is the base of the natural logarithm and appears in many areas of mathematics, including exponential growth and calculus

Thus,

The value of the limit is 2.71828.

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The value of  Fourier coefficient Coy is -4 * 0 = 0 after using signal propertry .

Given periodic signal is a(t) with period To = 2 and Co = 3.

The transformation of x(t) gives y(t) where:y(t)=-4x(t-2)-2 Find the Fourier coefficient Coy.

The Fourier series expansion of the signal y(t) is given by:-

[tex]$$y(t)=\sum_{n=-\infty}^{\infty} C_{n} e^{j n \omega_{0} t}$$[/tex] (1)where Cn is the Fourier coefficient.

ω0 is the fundamental angular frequency of the periodic signal and is given by:

[tex]$$\omega_{0}=\frac{2 \pi}{T_{0}}$$[/tex]

Here, the fundamental period T0 is given as 2 seconds, so the fundamental angular frequency ω0 is:

[tex]$$\omega_{0}=\frac{2 \pi}{2}= \pi$$[/tex]

The Fourier series coefficients can be obtained by multiplying both sides of Eq. (1) by e−j n ω0 t and integrating over one period of the signal.

The Fourier coefficients of the periodic signal a(t) are given as:

[tex]$$C_{n}=\frac{1}{T_{0}} \int_{-T_{0} / 2}^{T_{0} / 2} a(t) e^{-j n \omega_{0} t} d t$$(2)[/tex]

Given that y(t)=-4x(t-2)-2,

we can write:

[tex]$$y(t)=-4x(t-2)-2$$$$= -4 \sum_{n=-\infty}^{\infty} C_{n} e^{j n \omega_{0}(t-2)} -2$$$$= -4 \sum_{n=-\infty}^{\infty} C_{n} e^{j n \omega_{0} t} e^{-j 2n \pi} -2$$[/tex]

Comparing the above equation with Eq. (1), we have:

[tex]$$C_{n}=-4e^{-j 2n \pi}= -4(cos(2n \pi) - j sin(2n \pi))=-4$$[/tex]

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H fails to satisfy the first condition, it cannot be considered a subspace of the vector space V = ℝP.

To determine if the set H = {(x, y) | xy > 0} is a subspace of the vector space V = ℝP, we need to check if it satisfies the three conditions required for a subspace:

1. H must contain the zero vector: (0, 0).

2. H must be closed under vector addition.

3. H must be closed under scalar multiplication.

Let's evaluate each condition:

1. Zero vector: (0, 0)

  The zero vector is not in H because (0 * 0) = 0, which does not satisfy the condition xy > 0. Therefore, H does not contain the zero vector.

Since H fails to satisfy the first condition, it cannot be considered a subspace of the vector space V = ℝP.

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The equation that represents the relationship is, a = (1/2) * b * h.

An equation is a mathematical statement that asserts the equality of two expressions. It consists of an equal sign (=) that separates the two sides of the equation. The left-hand side (LHS) and the right-hand side (RHS) of the equation contain mathematical expressions or variables.

Equations are used to represent relationships, conditions, or constraints between different quantities or variables. By solving equations, we can find the values of the variables that make the equation true.

To find the equation that represents the relationship between the area of a triangle (a), the length of the base (b), and the height (h), we can use the concept of joint variation.

In joint variation, the equation takes the form:

a = k * b * h,

where "k" is the constant of variation.

Given that the value of "a" is 24 when "b" = 6 and "h" = 8, we can substitute these values into the equation to solve for "k."

24 = k * 6 * 8.

To find "k," divide both sides of the equation by (6 * 8):

24 / (6 * 8) = k.

Simplifying further:

24 / 48 = k,

1 / 2 = k.

Therefore, the equation that represents the relationship is:

a = (1/2) * b * h.

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Answer: 1.001

Step-by-step explanation:

The probability of an event is always within 0 or 1.

     ✓ 0 > 0.001 > 1

     ✓ 0 > 1.0 > 1

     ✗ 0 > 1.001 > 1

     ✓ 0 > 0.999 > 1

     ✓ 0 > 0.0 > 1

1.001 is not within 0 or 1, so it's not a legitimate probability of an event.

Answer:

Step-by-step explanation:

Not legitimate:  1.001

Probability must be between 0 (impossible event) and 1 (guaranteed to happen).

Therefore, there are 2,365,917,537,910 ways to select 10 pieces of gum from a bag of 250 pieces.

There are different ways to solve a combination problem like this one, but one common method is to use the formula for combinations. This formula is given by:

C(n,r)=\frac{n!}{r!(n-r)!}$$

Where n is the total number of objects in the set, r is the number of objects selected, and ! means factorial, which is the product of all positive integers up to a given number.

For example, 4!=4×3×2×1=24.

Using this formula, we can find the number of ways to select 10 pieces of gum from a bag of 250 pieces. We just need to plug in n=250 and

r=10 into the formula and simplify. The calculation is shown below:

C(250,10)=\frac{250!}{10!(250-10)!}$$

=\frac{250×249×248×...×242×241}{10×9×8×...×2×1}$$

=\frac{250×249×248×...×242×241}{10!}$$

=\frac{250}{10}×\frac{249}{9}×\frac{248}{8}×...\times\frac{242}{2}×\frac{241}{1}$$

=2,365,917,537,910

Therefore, there are 2,365,917,537,910 ways to select 10 pieces of gum from a bag of 250 pieces.

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The number of ways to select 10 pieces of gum from a bag of 250 pieces can be determined using the combination formula.

The combination formula is given by nCk,

where n is the total number of objects and k is the number of objects being selected.

In this case, n = 250 and k = 10.

Therefore, the number of ways to select 10 pieces of gum from a bag of 250 pieces is:

250C10 = 52,698,440,874 ways

So, the answer is 52,698,440,874 ways.

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a) The Cauchy-Riemann equations are satisfied. Since u and v have continuous partial derivatives and satisfy the Cauchy-Riemann equations, f(z) is analytic everywhere.

b) f(z) is analytic only on the real axis.

c) The Cauchy-Riemann equations are not satisfied anywhere. Therefore, f(z) is not analytic anywhere.

(a) Let f(z) = [tex]e^{barz^{2} }[/tex]

We can write z in terms of its real and imaginary parts as z = x + iy.

Therefore, we have:

f(z) = [tex]e^{- (x - iy)^2}[/tex] = [tex]e^{- (x^2 - y^2) - 2ixy}[/tex]

We can now use the Cauchy-Riemann equations:

u_x = v_y and u_y = -v_x

where u(x,y) is the real part of f(z) and v(x,y) is the imaginary part of f(z).

In this case, we have:

u(x,y) = [tex]e^{- (x^{2} - y^{2}) }[/tex] cos(2xy)

v(x,y) = - [tex]e^{- (x^{2} - y^{2}) }[/tex]} sin(2xy)

Taking partial derivatives, we have:

u_x = -2x [tex]e^{- (x^{2} - y^{2}) }[/tex]} sin(2xy)

v_y = -2x [tex]e^{- (x^{2} - y^{2}) }[/tex]} sin(2xy)

u_y = 2y [tex]e^{- (x^{2} - y^{2}) }[/tex] cos(2xy) -

v_x = 2y [tex]e^{- (x^{2} - y^{2}) }[/tex]} cos(2xy)

We can see that u_x = v_y and u_y = -v_x.

Therefore, the Cauchy-Riemann equations are satisfied. Since u and v have continuous partial derivatives and satisfy the Cauchy-Riemann equations, f(z) is analytic everywhere.

(b) Let f(z) = Re(z) = x. Here, we have:

u(x,y) = x v(x,y) = 0

Taking partial derivatives, we have:

u_x = 1 , v_y = 0

u_y = 0 , -v_x = 0

We can see that u_x = v_y and u_y = -v_x.

Therefore, the Cauchy-Riemann equations are satisfied only at the points where y = 0.

Therefore, f(z) is analytic only on the real axis.

(c) Let f(z) = zi. Here, we have:

u(x,y) = -y v(x,y) = x

Taking partial derivatives, we have:

u_x = 0 , v_y = 0

u_y = -1,  -v_x = 1

We can see that u_x ≠ v_y and u_y ≠ -v_x.

Therefore, the Cauchy-Riemann equations are not satisfied anywhere.

Therefore, f(z) is not analytic anywhere.

(d) Let f(z) = (x-1)²/(x-1-iy). Here, we have:

u(x,y) = (x-1)²/(x-1)² + y²

v(x,y) = 0

Taking partial derivatives, we have:

u_x = 2(x-1)/(x-1)² + y²

v_y = 0

u_y = -2y(x-1)/(x-1)² + y

-v_x = 0

We can see that u_x ≠ v_y and u_y ≠ -v_x.

Therefore, the Cauchy-Riemann equations are not satisfied anywhere. Therefore, f(z) is not analytic anywhere.

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The value of cos(x) for |x| ≤ 1/12 accurate to 12 decimal places (rounded), we need at least 5 terms in the series of cos(x). We will use Taylor's theorem to derive this result.

Taylor's theorem, also known as the Taylor series theorem, is a mathematical formula used to represent functions as a sum of infinitely many derivatives in order to approximate them over a certain interval.

This formula allows us to derive the value of a function at a point using information about its derivatives at that point.

In essence, Taylor's theorem is a tool used in calculus to model complex functions that cannot be easily solved.

Using Taylor's theorem to solve the question:

We know that the Taylor series expansion of cos(x) is given by the formula:

cos(x) = 1 - x²/2! + x⁴/4! - x⁶/6! + ...

To get an accurate value of cos(x), we need to keep adding terms in the series until the absolute value of the next term is less than our required accuracy.

Using |x| ≤ 1/12 and rounding to 12 decimal places, we have an error tolerance of 0.000000000001.

Therefore, we need to find the smallest value of n such that [tex]|x^(n+1)/(n+1)!| ≤ 0.000000000001,[/tex]

where x = 1/12.

Substituting x = 1/12,

we have |(1/12)^(n+1)/(n+1)!| ≤ 0.000000000001

Using a calculator, we can find that n = 4 satisfies this inequality.

Therefore, we need at least 5 terms in the series of cos(x) to compute the value of cos(x) for |x| ≤ 1/12 accurate to 12 decimal places (rounded).

Conclusion:

To calculate the value of cos(x) for |x| ≤ 1/12 accurate to 12 decimal places (rounded), we need at least 5 terms in the series of cos(x). We used Taylor's theorem to derive this result.

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Using a coefficient of -1 for x, the equation of the plane is -10x - 3y - 10z + 6 = 0. This is a valid equation of the plane that passes through the intersecting lines L1 and L2 and satisfies the requirement specified in the question.

The equation of a plane can be determined from intersecting lines. Here, we have two intersecting lines L1 and L2. For a line to lie on a plane, the line must have a point of intersection. The two lines, L1 and L2 have a common point (x1, y1, z1) = (-1, 2, 1).Taking cross product of the direction vectors of the two lines would give the normal vector of the plane.N = L1 X L2 = i j k -1 2 1 -4 2 -2= 10 i + 3 j + 10 kThus the plane is of the form 10x + 3y + 10z + d = 0. It passes through the point (-1, 2, 1)

Therefore, substituting the point coordinates into the plane equation gives:-10 + 6 + 10 + d = 0, from which d = -6. Substituting this value of d in the plane equation gives the equation of the plane in the form required by the question: 10x + 3y + 10z - 6 = 0.The equation of the plane using a coefficient of -1 for x is: (-10/-1)x + 3y + 10z - 6 = 0Multiply both sides of the equation by -1 to eliminate the negative denominator in the x-term:-10x + (-3)y + (-10)z + 6 = 0Thus, using a coefficient of -1 for x, the equation of the plane is -10x - 3y - 10z + 6 = 0. This is a valid equation of the plane that passes through the intersecting lines L1 and L2 and satisfies the requirement specified in the question.

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a. If matrix A is a 3x2 matrix with two pivot positions, it means that there are two leading ones in the row-echelon form of A.

b. For matrix A, the equation Ax = b will have at least one solution for every possible b.

a. If matrix A is a 3x2 matrix with two pivot positions,it means that there are two leading ones in the row-echelon form of A. In this case, the equation Ax = 0 will have a   nontrivial solution   because there will be at least one free variable in the system of equations.

b. For matrix A, the equation Ax = b will have at least one solution for every possible b if and only if matrix A   is a square matrix and its columns are linearly independent.

If A is not square or its columns are linearly dependent, the equation may not have a solution for some values of b.

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The area of triangle A"B"C" is 1/9 of the area of triangle ABC.

In this problem, we are given a triangle ABC and asked to construct a new triangle A'B'C' by taking points on each side of the original triangle such that they divide the sides into thirds. We then repeat this process to create another triangle A"B"C" using points on the sides of A'B'C'. The objective is to show that the sides of triangle A"B"C" are parallel to the corresponding sides of triangle ABC. Additionally, we need to determine the fraction of the area of triangle ABC that is occupied by triangle A"B"C".

Let's start by examining triangle ABC and the construction of triangle A'B'C'. We are given that point A' is located one-third of the way from point B to point C. This means that the distance from B to A' is one-third of the distance from B to C. We can express this mathematically as AB' = (1/3)BC. Similarly, we can determine the other side lengths of triangle A'B'C' as BC' = (1/3)CA and CA' = (1/3)AB.

To demonstrate that the sides of triangle A"B"C" are parallel to the corresponding sides of triangle ABC, we need to show that the ratios of the side lengths are equal. Let's consider one side as an example. We know that AB' = (1/3)BC in triangle A'B'C'. Now, let's examine the corresponding side in triangle A"B"C". Denote the side length in triangle A"B"C" as A"B''. Using a similar logic, we can express A"B'' as (1/3)B"C".

To compare the ratios, we can set up a proportion:

AB' / BC = A"B'' / B"C"

Substituting the values we obtained earlier:

(1/3)BC / BC = (1/3)B"C" / B"C"

Simplifying the equation, we find:

1/3 = 1/3

Since the ratio of the side lengths is the same for all corresponding sides, we can conclude that the sides of triangle A"B"C" are parallel to the sides of triangle ABC.

Now, let's determine the fraction of the area of triangle ABC that is occupied by triangle A"B"C". Since triangle A"B"C" is created by taking one-third of each side length of triangle A'B'C', we can conclude that the ratio of their areas will be the square of the ratio of their side lengths.

The ratio of the side lengths is 1/3, so the ratio of the areas will be (1/3)^2 = 1/9.

Therefore, the area of triangle A"B"C" is 1/9 of the area of triangle ABC.

In summary, we have shown that the sides of triangle A"B"C" are parallel to the sides of triangle ABC, and the area of triangle A"B"C" is 1/9 of the area of triangle ABC.

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The country's total GDP from January 2010 through June 2014 is approximately 16,189 billion dollars.

To find the expression for the total GDP [tex]\(G(t)\)[/tex] of sold goods in the country from January 2010 to time t, we need to integrate the GDP function  [tex]\(g(t)\)[/tex]  with respect to t over the given time interval.

The integral of [tex]\(g(t)\)[/tex] with respect to t gives us the cumulative GDP from the initial time (January 2010) to time t:

[tex]\[G(t) = \int_0^t g(\tau) d\tau\][/tex]

Substituting the expression for [tex]\(g(t)\)[/tex] into the integral, we have:

[tex]\[G(t) = \int_0^t (4000 - 480e^{-0.06\tau}) d\tau\][/tex]

To evaluate this integral, we can use the antiderivative of 4000 and the antiderivative of [tex]\(480e^{-0.06\tau}\).[/tex]

The antiderivative of 4000 with respect to [tex]\(\tau\)[/tex] is [tex]\(4000\tau\)[/tex], and the antiderivative of [tex]\(480e^{-0.06\tau}\)[/tex] with respect to [tex]\(\tau\)[/tex] is [tex]\(-8000e^{-0.06\tau}\).[/tex]

Now we can evaluate the integral:

[tex]\[G(t) = \left[4000\tau - 8000e^{-0.06\tau}\right]_0^t\]\\\[G(t) = 4000t - 8000e^{-0.06t} - (4000(0) - 8000e^{-0.06(0)})\]\[G(t) = 4000t - 8000e^{-0.06t} - (-8000)\]\[G(t) = 4000t - 8000e^{-0.06t} + 8000\][/tex]

To estimate the country's total GDP from January 2010 through June 2014, we substitute t = 4.5 into the expression for G(t):

[tex]\[G(4.5) = 4000(4.5) - 8000e^{-0.06(4.5)} + 8000\][/tex]

Evaluating this expression will give us the estimated total GDP in billion dollars.

To evaluate the expression for the country's total GDP from January 2010 through June 2014, we substitute t = 4.5 into the expression for [tex]\(G(t)\)[/tex]:

[tex]\[G(4.5) = 4000(4.5) - 8000e^{-0.06(4.5)} + 8000\][/tex]

Calculating this expression gives us:

[tex]\[G(4.5) = 18000 - 8000e^{-0.27} + 8000\][/tex]

Using a calculator, we can approximate the value of [tex]\(e^{-0.27}\)[/tex] and perform the necessary computations:

[tex]\[G(4.5) \approx 16188.9\][/tex]

Therefore, the country's total GDP from January 2010 through June 2014 is approximately 16,189 billion dollars.

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The point of intersection between the line and the plane is P = (2, 2, -3).

Now, For the point of intersection between the line and the plane, we need to substitute the line equations into the plane equation and solve for t.

That is, we need to solve:

(1+t) + 2t + (-3t) = 2

Simplifying this equation, we get:

t = 1

Now that we have the value of t, we can substitute it back into the line equations to find the point of intersection.

That is, we need to evaluate:

P = (1+t, 2t, -3t)

So, at t = 1

Substituting t = 1, we get:

P = (1+1, 2(1), -3(1)) = (2, 2, -3)

Therefore, the point of intersection between the line and the plane is,

P = (2, 2, -3).

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The length of the tangent in the circular curve is approximately 22.256 meters. To calculate the length of the tangent, we can use the formula:

Length of Tangent = External Distance / tan(Azimuthal Difference / 2)

Given that the external distance is 7.30 m and the azimuthal difference between the forward and back tangents is 37 degrees, we can substitute these values into the formula:

Length of Tangent = 7.30 m / tan(37 degrees / 2)

Now let's solve this expression step by step:

1. Calculate the value inside the tangent function:

  37 degrees / 2 = 18.5 degrees

2. Calculate the tangent of 18.5 degrees:

  tan(18.5 degrees) ≈ 0.328

3. Divide the external distance by the tangent value:

  Length of Tangent = 7.30 m / 0.328 ≈ 22.256 m

In conclusion, by substituting the given values into the formula and performing the calculations, we find that the length of the tangent is approximately 22.256 meters.

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To prove that every positive integer n has a factorization n = 3k * m, where k, m ∈ Z, k ≥ 0, and m ≥ 1 is not a multiple of 3, we can consider the prime factorization of n.

Every positive integer can be expressed as a product of prime numbers. Let's assume n has a prime factorization of the form [tex]n = p1^a1 * p2^a2 * ...[/tex][tex]* pk^ak,[/tex] where pi are prime numbers and ai are positive integers.

Now, we can consider the cases for the prime factors pi:

If 3 is a prime factor of n (i.e., 3 divides n), then we can write n as n = 3^a * q, where a is a positive integer and q is the remaining part of the prime factorization not involving 3.

If 3 is not a prime factor of n (i.e., 3 does not divide n), then we can write n as[tex]n = 3^0 * n,[/tex] where n itself is the remaining part of the prime factorization.

In both cases, we have a factorization of n in the form n = 3k * m, where k can be 0 or a positive integer, and m is either q or n itself, depending on whether 3 is a prime factor of n or not. Importantly, m is not a multiple of 3 because it does not have 3 as a prime factor.

Therefore, we have shown that every positive integer n can be written as n = 3k * m, where k, m ∈ Z, k ≥ 0, and m ≥ 1 is not a multiple of 3.

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By the Integral Test, the series [tex]\(\sum \frac{\ln(2n)}{4^n}\)[/tex] also diverges. In conclusion, the given series diverges.

To do this, we will use the Integral Test, which involves comparing the series to an improper integral. By examining the properties of the function and its derivative, we will determine the convergence or divergence of the series.

The natural logarithm function, [tex]\(\ln(x)\)[/tex], is continuous for positive [tex]\(x\)[/tex]. Therefore, [tex]\(\ln(2x)\)[/tex] is also continuous for positive [tex]\(x\)[/tex]. This assures us that [tex]\(f(x)\)[/tex] is continuous for [tex]\(x > 1\)[/tex].

Next, we need to investigate whether [tex]\(f(x)\)[/tex] is positive or negative for [tex]\(x > 1\)[/tex]. Since [tex]\(\ln(x)\)[/tex] is positive for [tex]\(x > 1\)[/tex], we can conclude that [tex]\(\ln(2x)\)[/tex] is positive for [tex]\(x > \frac{1}{2}\)[/tex]. Therefore, [tex]\(f(x)\) is positive for \(x > \frac{1}{2}\)[/tex].

Now, we want to determine if [tex]\(f(x)\)[/tex] is a decreasing function for [tex]\(x > 1\)[/tex]. To do this, we can compute its derivative, [tex]\(f'(x)\)[/tex], and analyze its sign.

[tex]\(f(x) = \frac{\ln(2x)}{4^x}\)[/tex]

Taking the derivative of \(f(x)\) with respect to \(x\) using the quotient rule:

[tex]\(f'(x) = \frac{(4^x \cdot \ln(2x))' - (\ln(2x) \cdot (4^x)')}{(4^x)^2}\)[/tex]

Simplifying further:

[tex]\(f'(x) = \frac{(4^x \cdot \ln(2) + 4^x \cdot \frac{1}{2x}) - (\ln(2x) \cdot 4^x \cdot \ln(4))}{(4^x)^2}\)[/tex]

[tex]\(f'(x) = \frac{4^x \cdot \ln(2) + \frac{2^x}{x} - 4^x \cdot \ln(2x) \cdot 2\ln(2)}{(4^x)^2}\)[/tex]

[tex]\(f'(x) = \frac{4^x \cdot \ln(2) \left(1 - 2\ln(2x)\right) + \frac{2^x}{x}}{(4^x)^2}\)[/tex]

To analyze the sign of [tex]\(f'(x)\)[/tex], we need to find when [tex]\(f'(x) < 0\)[/tex].

From the expression above, we observe that [tex]\(f'(x)\)[/tex] will be negative when [tex]\(1 - 2\ln(2x) < 0\)[/tex], which implies that [tex]\(2\ln(2x) > 1\)[/tex].

[tex]\(2\ln(2x) > 1\)[/tex]

[tex]\(\ln(2x) > \frac{1}{2}\)[/tex]

Taking the exponential function (base \(e\)) of both sides:

[tex]\(2x > e^{\frac{1}{2}}\)[/tex]

Dividing both sides by 2:

[tex]\(x > \frac{e^{\frac{1}{2}}}{2}\)[/tex]

From this analysis, we conclude that \(f(x)\) is decreasing for [tex]\(x > \frac{e^{\frac{1}{2}}}{2}\).[/tex]

Now, since [tex]\(f(x)\)[/tex] is positive and decreasing for [tex]\(x > \frac{e^{\frac{1}{2}}}{2}\)[/tex], we can apply the Integral Test. The Integral Test states that if [tex]\(\int_{1}^{\infty} f(x) \, dx\)[/tex] converges, then the series [tex]\(\sum f(n)\)[/tex] also converges, and if the integral diverges, then the series diverges.

[tex]\(\int_{1}^{\infty} \frac{\ln(2x)}{4^x} \, dx\)[/tex]

We substitute [tex]\(u = 2x\), so \(du = 2 \, dx\)[/tex] and the limits of integration change accordingly:

[tex]\(\int_{2}^{\infty} \frac{\ln(u)}{4^{u/2}} \cdot \frac{1}{2} \, du\)[/tex]

[tex]\(\frac{1}{2} \int_{2}^{\infty} \frac{\ln(u)}{2^{2u}} \, du\)[/tex]

To compute this integral, we take the limit as the upper limit tends to infinity:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \int_{2}^{t} \frac{\ln(u)}{2^{2u}} \, du\)[/tex]

By evaluating this integral, we find:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ \left(\frac{(\ln(u))^2}{2^u}\right) \Bigg|_2^t - \int_{2}^{t} \frac{2\ln(u)}{2^u} \, du \right]\)[/tex]

Simplifying the expression inside the square brackets:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ \frac{(\ln(t))^2}{2^t} - \frac{(\ln(2))^2}{2^2} - \int_{2}^{t} \frac{2\ln(u)}{2^u} \, du \right]\)[/tex]

Taking the limit as \(t\) tends to infinity, we have:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ \frac{(\ln(t))^2}{2^t} - \frac{(\ln(2))^2}{2^2} - \int_{2}^{t} \frac{2\ln(u)}{2^u} \, du \right]\)[/tex]

Since the term [tex]\(\frac{(\ln(t))^2}{2^t}\)[/tex] tends to 0 as [tex]\(t\)[/tex] tends to infinity, we are left with:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ - \frac{(\ln(2))^2}{2^2} - \int_{2}^{t} \frac{2\ln(u)}{2^u} \, du \right]\)[/tex]

Simplifying further:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ - \frac{(\ln(2))^2}{4} - \int_{2}^{t} \frac{\ln(u)}{2^u} \, du \right]\)[/tex]

Now, we need to evaluate the integral:

[tex]\(\int_{2}^{t} \frac{\ln(u)}{2^u} \, du\)[/tex]

Unfortunately, this integral does not have a closed-form solution and cannot be expressed in terms of elementary functions. However, we can still conclude about its convergence or divergence.

By taking the limit as [tex]\(t\)[/tex] tends to infinity, we have:

[tex]\(\lim_{{t \to \infty}} \frac{1}{2} \left[ - \frac{(\ln(2))^2}{4} - \int_{2}^{t} \frac{\ln(u)}{2^u} \, du \right]\)[/tex]

Since the integral does not converge to a finite value, we can conclude that the improper integral diverges.

Therefore, by the Integral Test, the series [tex]\(\sum \frac{\ln(2n)}{4^n}\)[/tex] also diverges.

In conclusion, the given series diverges.

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The velocity of the car at 2:15 pm is approx. 367.8 miles per hour.

Given, the velocity equation is v(t) = -5t⁴ + 45t³ - 150t² + 180t. To determine the velocity of the car at 2:15 pm, first we need to find the value of t at 2:15 pm. 2:15 pm is 2.25 hours after noon. Therefore, t = 2.25.

So, v(2.25) = -5(2.25)⁴ + 45(2.25)³ - 150(2.25)² + 180(2.25)

= -5(39.06) + 45(11.39) - 150(5.06) + 180(2.25)

= -195.3 + 513.5 - 759 - 81

= -522.8

This indicates that the car was moving in the opposite direction at 522.8 miles per hour at 2:15 pm. Now, we need to find out the velocity of the car at 2:15 pm when the car was 155 miles away from home. Let v be the velocity of the car at that moment.

We know that distance traveled (s) = velocity × time. We are given that at noon, the distance of the car from home is 155 miles. So, at 2:15 pm, the distance of the car from home would be:

s = distance from noon + distance traveled after noon

 = 155 + v(2.25 - 0)  ...(distance traveled after noon = v × 2.25 (hours))

 = 155 - 522.8

 = -367.8

Since the distance cannot be negative, the car must have turned around and is now moving towards home. Therefore, we take the absolute value of the velocity.Therefore, the velocity of the car at 2:15 pm is approximately 367.8 miles per hour.

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The vector in terms of ur and uθ is,

velocity  [tex]\vec{v}[/tex]= (64tcos(4θ))ur + (4tasin(4θ)t)uθ

acceleration [tex]\vec{a}[/tex]= (64cos(4θ) - 256t²sin(4θ))ur + (20t²asin(4θ))uθ

To find the velocity and acceleration vectors in terms of the unit vectors [tex]u_{r}[/tex] and [tex]u_{\theta}[/tex],

Express the position vector in polar coordinates, differentiate it with respect to time,

and then express the derivatives in terms of [tex]u_{r} \\[/tex] and [tex]u_{\theta}[/tex].

r = asin(4θ)

dθ/dt = 4t

The position vector in polar coordinates is ,

[tex]\vec{r}[/tex]= r[tex]u_{r}[/tex]

Taking the derivative of r with respect to time, we have,

dr/dt = d(asin(4θ))/dt

Using the chain rule, the derivative becomes,

dr/dt = (d(asin(4θ))/dθ) × (dθ/dt)

We are given that dθ/dt = 4t, so substituting it into the equation,

dr/dt = (d(asin(4θ))/dθ) ×4t

To find (d(asin(4θ))/dθ),

Differentiate asin(4θ) with respect to θ and then multiply it by 4,

(d(asin(4θ))/dθ) = 4× d(sin(4θ))/dθ

Differentiating sin(4θ) with respect to θ, we get,

d(sin(4θ))/dθ = 4cos(4θ)

Substituting this back into the equation,

dr/dt = 4 × 4cos(4θ)× 4t

dr/dt = 64tcos(4θ)

Now, express the velocity vector [tex]\vec{v}[/tex] in terms of ur and uθ,

[tex]\vec{v}[/tex] = (dr/dt)ur + (r dθ/dt)uθ

Substituting the expressions for dr/dt and r, we have,

[tex]\vec{v}[/tex] = 64tcos(4θ)ur + (asin(4θ) ×4t)uθ

Simplifying further,

[tex]\vec{v}[/tex] = 64tcos(4θ)ur + 4tasin(4θ)tuθ

So, the velocity vector in terms of ur and uθ is,

[tex]\vec{v}[/tex]= (64tcos(4θ))ur + (4tasin(4θ)t)uθ

To find the acceleration vector[tex]\vec{a}[/tex],

Differentiate the velocity vector [tex]\vec{v}[/tex] with respect to time,

[tex]\vec{a}[/tex] = (d²r/dt²)ur + (d(r dθ/dt)/dt)uθ

Taking the derivative of (64tcos(4θ)) with respect to time, we get,

(d²r/dt²) = 64cos(4θ) + 64t(-sin(4θ))(dθ/dt)

(d²r/dt²) = 64cos(4θ) + 64t(-sin(4θ))(4t)

(d²r/dt²) = 64cos(4θ) - 256t²sin(4θ)

Similarly, differentiating (4tasin(4θ)t) with respect to time,

(d(r dθ/dt)/dt) = 4asin(4θ) + (4tasin(4θ))(dθ/dt)

⇒(d(r dθ/dt)/dt) = 4asin(4θ) + (4tasin(4θ))(4t)

⇒(d(r dθ/dt)/dt) = 4asin(4θ) + 16t²asin(4θ)

Substituting these expressions back into the acceleration vector equation,

[tex]\vec{a}[/tex] = (64cos(4θ) - 256t²sin(4θ))ur + (4asin(4θ) + 16t²asin(4θ))uθ

Simplifying further,

[tex]\vec{a}[/tex] = (64cos(4θ) - 256t²sin(4θ))ur + (20t²asin(4θ))uθ

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The above question is incomplete, the complete question is:

Find the velocity and acceleration vectors in terms of ur and uθ.

r=asin4θ and dθ / dt=4t, where a is a constant

v=()ur +()uθ

a=()ur+()uθ

​

The derivative dy/dx for the function y = 1/(3x²+ x - 2)³ is given by dy/dx = -18x - 3(3x² + x - 2)⁻⁴

To find the derivative dy/dx for the function y = f(x) = 1/(3x² + x - 2)³,

Use the chain rule.

Let's break down the process ,

Rewrite the function,

y = (3x² + x - 2)⁻³

Apply the chain rule we get,

dy/dx = d/dx [(3x² + x - 2)⁻³]

Let u = (3x² + x - 2), so the function becomes,

y = u⁻³

Find the derivative of u with respect to x,

⇒du/dx = d/dx (3x² + x - 2)

⇒du/dx = 6x + 1

Apply the chain rule,

dy/du = -3u⁻⁴ × du/dx

Substitute u back into the equation,

dy/du = -3(3x² + x - 2)⁻⁴ × (6x + 1)

Simplify the expression

dy/du = -18x - 3(3x² + x - 2)⁻⁴

Therefore, the derivative dy/dx for the given function is equal to dy/dx = -18x - 3(3x² + x - 2)⁻⁴.

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Fixing a UCL (Upper Control Limit) and LCL (Lower Control Limit) at 3 standard deviations, with an area of 99.73%, means that the probability of making a Type 1 error is approximately 0.27% for each tail (above or below the UCL and LCL, respectively).

When the UCL and LCL are set at 3 standard deviations, they encompass approximately 99.73% of the data under a normal distribution curve, leaving a small tail on each end. The probability of making a Type 1 error corresponds to the area under these tails. Since the distribution is symmetric, the probability is divided equally between the upper and lower tails.

Therefore, the correct answer is that the probability of making a Type 1 error is approximately 0.27% for each tail (above or below the UCL and LCL, respectively).

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The sum of the values of f(x) is 3025.

The given function is [tex]f(x) = x^3[/tex] over the integers 1, 2, 3,...10.

We have to find the sum of the values of f(x).

We are given the function as [tex]f(x) = x^3[/tex] over the integers from 1 to 10.

Since the function is a polynomial function, the sum of its values can be calculated by finding the sum of its coefficients.

The sum of coefficients is nothing but the sum of the values of the function.

The sum of the values of f(x) is calculated as: f[tex](1) + f(2) + f(3) + .... + f(10)\\f(1) = 1^3 = 1\\f(2) = 2^3 = 8\\f(3) = 3^3 = 27[/tex]

Similarly, [tex]f(4) = 4^3 = 64\\f(5) = 5^3 = 125\\f(6) = 6^3 = 216\\f(7) = 7^3= 343\\f(8) = 8^3 = 512\\f(9) = 9^3 = 729\\f(10) = 10^3 = 1000[/tex]

Therefore, the sum of the values of [tex]f(x) = f(1) + f(2) + f(3) + .... + f(10) \\= 1 + 8 + 27 + 64 + 125 + 216 + 343 + 512 + 729 + 1000 \\= 3025[/tex]

Therefore, the sum of the values of f(x) is 3025.

Note: It is important to remember that the sum of the values of a polynomial function over the integers can be found by adding up the coefficients.

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The position of the particle after t seconds is s(t) = (5/2)[tex]t^2[/tex] + (2/3)[tex]t^3[/tex] - (1/12)[tex]t^4[/tex] + 3t + 10.

To find the position of the particle after t seconds, we need to integrate the acceleration function to obtain the velocity function, and then integrate the velocity function to obtain the position function.

Given:

Acceleration function: a(t) = 5 + 4t - 2[tex]t^2[/tex]

Initial velocity: v(0) = 3 m/s

Initial displacement: s(0) = 10 m

Integration of the acceleration function gives us the velocity function:

v(t) = ∫[5 + 4t - 2[tex]t^2[/tex]] dt

v(t) = 5t + 2[tex]t^2[/tex] - (2/3)[tex]t^3[/tex] + [tex]C_1[/tex]

Using the initial velocity v(0) = 3 m/s, we can solve for the constant [tex]C_1[/tex]:

3 = 5(0) + 2[tex](0)^2[/tex] - (2/3)[tex](0)^3[/tex] + [tex]C_1[/tex]

[tex]C_1[/tex] = 3

Therefore, the velocity function is:

v(t) = 5t + 2[tex]t^2[/tex] - (2/3)[tex]t^3[/tex] + 3

Now, we integrate the velocity function to obtain the position function:

s(t) = ∫[5t + 2[tex]t^2[/tex] - (2/3)[tex]t^3[/tex] + 3] dt

s(t) = (5/2)[tex]t^2[/tex] + (2/3)[tex]t^3[/tex] - (1/12)[tex]t^4[/tex] + 3t + [tex]C_2[/tex]

Using the initial displacement s(0) = 10 m, we can solve for the constant [tex]C_2[/tex]:

10 = (5/2)[tex](0)^2[/tex] + (2/3)[tex](0)^3[/tex] - (1/12)[tex](0)^4[/tex] + 3(0) + [tex]C_2[/tex]

[tex]C_2[/tex] = 10

Therefore, the position function is:

s(t) = (5/2)[tex]t^2[/tex] + (2/3)[tex]t^3[/tex] - (1/12)[tex]t^4[/tex] + 3t + 10

So, the position of the particle after t seconds is given by the equation:

s(t) = (5/2)[tex]t^2[/tex] + (2/3)[tex]t^3[/tex] - (1/12)[tex]t^4[/tex] + 3t + 10.

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