State if the triangle is acute obtuse or right

Answer:

Step-by-step explanation:

Just like a lot of our other curve transformations

The number with x => (x+2) is the shift in x direction and you take opposite sign so it's been shifted -2 or left 2

bring the 4 to the back of teh equation and it will be +4, that controls the y direction which is +4 or up 4

That would leave a - in the front which means the graph  wil be reflected.

The differential of the function m = p³q⁹ is dm = 3p²q⁹ dp + 9p³q⁸ dq.

To find the differential of the function m = p3q9, we use the formula:
dm = (∂m/∂p) dp + (∂m/∂q) dq
Where ∂m/∂p is the partial derivative of m with respect to p, and ∂m/∂q is the partial derivative of m with respect to q.
Taking the partial derivative of m with respect to p, we get:
∂m/∂p = 3p2q9
Taking the partial derivative of m with respect to q, we get:
∂m/∂q = p3(9q8) = 9p3q8
Substituting these partial derivatives into the formula for the differential, we get:
dm = (3p2q9) dp + (9p3q8) dq
Therefore, the differential of the function m = p3q9 is:
dm = 3p2q9 dp + 9p3q8 dq
find the differential of the function m = p³q⁹. To find the differential, we'll use the product rule, which states that if m = uv, then dm = u(dv) + v(du). Here, u = p3 and v = q9. Now, let's find the differentials:
For u = p3, we have du = 3p² dp.
For v = q9, we have dv = 9q⁸ dq.
Now, let's apply the product rule:
dm = p3(dq⁹) + q9(dp³) = p3(9q⁸ dq) + q9(3p² dp) = 3p²q⁹ dp + 9p³q⁸ dq.
So, the differential of the function m = p3q9 is dm = 3p²q⁹ dp + 9p³q⁸ dq.

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Answer:

a. -2.5--->-1

b. n---> 2n/5

The solution to the boundary-value problem is[tex]y(x) = (9/2)cos(x) - (9/2)cos(1)sin(x) + (1/2)x^2 - 1/2.[/tex]

To solve the boundary-value problem, we can follow these steps:

Step 1: Find the general solution of the homogeneous differential equation y'' + y = 0.

The characteristic equation is r^2 + 1 = 0, which has complex roots r = ±i. Therefore, the general solution of the homogeneous equation is y_h(x) = c_1 cos(x) + c_2 sin(x), where c_1 and c_2 are constants.

Step 2: Find a particular solution of the non-homogeneous differential equation y'' + y = x^2 + 1.

We can use the method of undetermined coefficients to find a particular solution. Since the right-hand side of the equation is a polynomial of degree 2, we can assume a particular solution of the form y_p(x) = ax^2 + bx + c. Substituting this into the equation, we get:

[tex]y_p''(x) + y_p(x) = 2a + ax^2 + bx + c + ax^2 + bx + c = 2ax^2 + 2bx + 2c + 2a[/tex]

Equating this to the right-hand side of the equation, we get:

2a = 1, 2b = 0, 2c + 2a = 1

Solving for a, b, and c, we get a = 1/2, b = 0, and c = -1/2.

Therefore, a particular solution is y_p(x) = (1/2)x^2 - 1/2.

Step 3: Find the general solution of the non-homogeneous differential equation.

The general solution of the non-homogeneous differential equation is y(x) = y_h(x) + y_p(x), where y_h(x) is the general solution of the homogeneous equation and y_p(x) is a particular solution of the non-homogeneous equation.

Substituting the values of c_1, c_2, and y_p(x) into the general solution, we get:

y(x) = c_1 cos(x) + c_2 sin(x) + (1/2)x^2 - 1/2

Step 4: Apply the boundary conditions to determine the values of the constants.

Using the first boundary condition, y(0) = 4, we get:

c_1 - 1/2 = 4

Therefore, c_1 = 9/2.

Using the second boundary condition, y(1) = 0, we get:

9/2 cos(1) + c_2 sin(1) + 1/2 - 1/2 = 0

Therefore, c_2 = -9/2 cos(1).

Step 5: Write the final solution.

Substituting the values of c_1 and c_2 into the general solution, we get:

[tex]y(x) = (9/2)cos(x) - (9/2)cos(1)sin(x) + (1/2)x^2 - 1/2[/tex]

Therefore, the solution to the boundary-value problem is[tex]y(x) = (9/2)cos(x) - (9/2)cos(1)sin(x) + (1/2)x^2 - 1/2.[/tex]

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The maximum and minimum values of f(x, y, z) subject to the given constraint can be found by substituting the values of x, y and z in the function f(x, y, z).

Function is an operation that takes one or more inputs and produces an output, or a set of outputs, depending on the type of function. Functions are commonly used in mathematics and computer science, and are essential for solving a wide range of problems.

We are given a function f(x, y, z) = xyz and the constraint x2 + 2y2 + 3z2 = 96. To find the maximum and minimum values of f(x, y, z) subject to the given constraint, we can use the method of Lagrange multipliers.

Let λ be the Lagrange multiplier. Then, the Lagrange function is given by:

L(x, y, z, λ) = xyz + λ (x2 + 2y2 + 3z2 - 96)

We will now calculate the partial derivatives of L with respect to x, y, z and λ.

∂L/∂x = yz + 2xλ = 0
∂L/∂y = xz + 4yλ = 0
∂L/∂z = xy + 6zλ = 0
∂L/∂λ = x2 + 2y2 + 3z2 - 96 = 0

Solving the above equations, we get:
2xλ = -yz
4yλ = -xz
6zλ = -xy
x2 + 2y2 + 3z2 = 96

Substituting the values of λ in the first three equations, we get:
2x(-xz/4y) = -yz
2x2z/4y = -yz
x2z/2y = -yz

From the fourth equation, we get:
x2 + 2y2 + 3z2 = 96

Substituting the values of x2, y2 and z2 from the above equation in the fifth equation, we get:
(96 - 2y2 - 3z2)z/2y = -yz
96z/2y - yz - 3z3/2y = 0

Solving for z, we get:
z = (96/4y) ± √(962/16y2 - 3y2)

Substituting the values of z from the above equation in the fourth equation, we get:
x2 + 2y2 + 3 (96/4y)2 ± √(962/16y2 - 3y2)2 = 96

Solving for y, we get:
y = ±√(96/14 - 3z2/2)

Substituting the values of y from the above equation in the third equation, we get:
x = ± 2z √(14z2/96 - 1/3)

Hence, the maximum and minimum values of f(x, y, z) subject to the given constraint can be found by substituting the values of x, y and z in the function f(x, y, z).

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Answer:

x=-((y-2)^2)/12  +5

Step-by-step explanation:

a) A possible differential equation with this characteristic equation is:

y'''' - 6y''' + 13y'' - 12y' + 4y = 0

b) The general solution of the differential equation is:

[tex]y = (c1 + c2x)e^x + (c3 + c4x)e^2x[/tex]

a) To find such a differential equation, we can use the fact that the roots of the characteristic equation correspond to the solutions of the homogeneous linear differential equation.

The characteristic equation is given by:

[tex](r - 1)^2 (r - 2)^2 = 0[/tex]

Expanding the terms, we get:

[tex]r^4 - 6r^3 + 13r^2 - 12r + 4 = 0[/tex]

Therefore, a possible differential equation with this characteristic equation is:

y'''' - 6y''' + 13y'' - 12y' + 4y = 0

b) To find the general solution of this differential equation, we can use the method of undetermined coefficients or the method of variation of parameters.

However, since the roots of the characteristic equation have a multiplicity of 2, we know that the general solution will involve terms of the form:

[tex]y = (c1 + c2x)e^x + (c3 + c4x)e^2x[/tex]

where c1, c2, c3, and c4 are constants to be determined based on initial or boundary conditions.

Therefore, the general solution of the differential equation is:

[tex]y = (c1 + c2x)e^x + (c3 + c4x)e^2x[/tex]

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The p-value for the given analysis of variance (ANOVA) test is approximately 0.0012.

To find the p-value for this ANOVA test, we need to consider the F-statistic (5.71) and degrees of freedom for groups (4) and error (35). Using an F-distribution table or an online calculator, input the F-statistic value and the degrees of freedom to obtain the p-value.

The p-value represents the probability of observing an F-statistic as extreme as the one calculated from your data, assuming the null hypothesis is true (i.e., all group means are equal).

In this case, the p-value of approximately 0.0012 indicates a very low probability of observing the given F-statistic if the null hypothesis were true, suggesting that there is a significant difference among the group means.

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(a) The velocity vector is v(t) = 3i + j + 1/2tk, the speed is

∥v(t)∥ = √(10t² + 1), and the acceleration vector is a(t) = 1/2k.

(b) Plugging in t = 2, the velocity vector is v(2) = 3i + j + k, and the acceleration vector is a(2) = 1/2k.

(a) To find the velocity vector, we take the derivative of the position vector with respect to time:

To find the speed of the object, we take the magnitude of the velocity vector:

|v(t)| = √(9 + 1 + 1/4t²)

Now, to find the acceleration vector, we take the derivative of the velocity vector with respect to time:

a(t) = v'(t) = 1/2k

(b) To find the velocity vector and acceleration vector at t=2, we substitute t=2 into the expressions we found in part (a):

Therefore, at t=2, the object has a position vector of 6i + 2j + k, a velocity vector of 3i + j + 2k, a speed of√(10t² + 1), and an acceleration vector of 1/2k.

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Answer: 4, 2

Step-by-step explanation:

This is a sine/cosine wave.

we can see one full revolution from 0 to 4; this means that the period is 4.

the amplitude refers to how "high" or "low" the graph goes from its center.

we can see it hits a maximum of 2, (and a minimum of -2). Since the amplitude is the absolute value of this high/low value, it will always be positive. so the amplitude is 2

In conclusion:

Period = 4

Amplitude = 2

The temperature distribution in the rod at time t.

We can use the method of separation of variables to solve this problem. Let's assume that the temperature function can be written as a product of two functions: u(x,t) = X(x)T(t). Substituting this in the heat equation and dividing by XT, we get:

(1/X) d²X/dx² = (1/a) (1/T) dT/dt = -λ²

where λ² = -a is a constant. This gives us two separate differential equations:

d²X/dx² + λ² X = 0, X(0) = X(2) = 0

and

dT/dt + a/T = 0, T(0) = 1

The first equation has the general solution:

X(x) = B sin(λx)

where B is a constant determined by the boundary conditions. Since X(0) = X(2) = 0, we have:

X(x) = B sin(nπx/2)

where n is an odd integer (to satisfy X(0) = 0) and B is a normalization constant such that X(2) = 0. We have:

X(2) = B sin(nπ) = 0

which implies that nπ = 2kπ, where k is an integer. Since n is odd, we must have n = 2m + 1 for some integer m, so we get:

nπ = (2m + 1)π = 2kπ

which implies that k = m + 1/2. Therefore, the eigenvalues are:

λ² = -(nπ/2l)² = -(2m + 1)²π²/4l²

and the corresponding eigenfunctions are:

X_m(x) = B_m sin((2m + 1)πx/2l)

where B_m is a normalization constant.

The second equation has the solution:

T(t) = exp(-at)

Using the principle of superposition, the general solution of the heat equation is:

u(x,t) = Σ_m B_m sin((2m + 1)πx/2l) exp(-a(2m + 1)²π²t/4l²)

To determine the coefficients B_m, we use the initial condition:

u(x,0) = f(x) = x (0 < x < 1), f(x) = 0 (1 < x < 2)

This gives us:

Σ_m B_m sin((2m + 1)πx/2l) = x (0 < x < 1)

Σ_m B_m sin((2m + 1)πx/2l) = 0 (1 < x < 2)

Using the orthogonality of the sine functions, we can solve for B_m:

B_m = (4/l) ∫_0^l x sin((2m + 1)πx/2l) dx

B_m = (8l/(2m + 1)π)² ∫_0^1 x sin((2m + 1)πx/2) dx

B_m = (-1)^(m+1)/(2m + 1)

Therefore, the solution is:

u(x,t) = Σ_m (-1)^(m+1)/(2m + 1) sin((2m + 1)πx/2l) exp(-a(2m + 1)²π²t/4l²)

This is the temperature distribution in the rod at time t.

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To compute the inverse Laplace transform of L^-1 {3s + 2/s^2 - s - 12 e^-4s}, we first need to break it up into simpler terms using partial fraction decomposition. We have:

L^-1 {3s + 2/s^2 - s - 12 e^-4s}

= L^-1 {3s} + L^-1 {2/s^2 - s} + L^-1 {12 e^-4s}

= 3 δ(t) + (2 u(t) - 1) - (1 - u(t - 4)) \* 3/2 e^(4(t-4))

where δ(t) is the Dirac delta function and u(t) is the Heaviside step function.

The first term, 3 δ(t), comes from the L^-1 {3s} term, which corresponds to a constant function.

The second term, (2 u(t) - 1), comes from the L^-1 {2/s^2 - s} term, which we can decompose as:

2/s^2 - s

= 2/s^2 - 2s/s^2 + s/s^2

= 2 (1/s - 1/s^2) - s/s^2

Taking the inverse Laplace transform of each term separately gives:

L^-1 {2 (1/s - 1/s^2)} = 2 (u(t) - 1) L^-1 {-s/s^2} = -(t u(t))

Putting these together, we get: L^-1 {2/s^2 - s} = 2 (u(t) - 1) - (t u(t))

The third term, (1 - u(t - 4)) \* 3/2 e^(4(t-4)), comes from the L^-1 {12 e^-4s} term, which corresponds to an exponentially decaying function.

We use the time-shifting property of the Laplace transform to shift the function by 4 units to the right, giving: L^-1 {12 e^-4s} = 3/2 e^(4(t-4)) u(t-4)

But we want the function to be 0 for t < 4, so we subtract off the Heaviside step function u(t - 4), giving: L^-1 {12 e^-4s} = (1 - u(t - 4)) \* 3/2 e^(4(t-4))

Putting everything together, we get: L^-1 {3s + 2/s^2 - s - 12 e^-4s} = 3 δ(t) + 2 (u(t) - 1) - (t u(t)) - (1 - u(t - 4)) \* 3/2 e^(4(t-4))

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 B = | 1 0 0 |
      | 0 1 0 |
      | 1 1 2 |

To construct a matrix whose column space contains vectors [1, 0, 1] and [0, 1, 1], and whose nullspace contains the vector [2, 1, 2], follow these steps:

1. Form the column space by arranging the given vectors as columns of the matrix A:
  A = | 1 0 |
      | 0 1 |
      | 1 1 |

2. Determine a third column vector (C) that, when added to A, will create a matrix that has the given nullspace vector. To do this, use the equation Ax = 0, where x is the nullspace vector [2, 1, 2]. Multiply the matrix A with the nullspace vector to find the third column vector:

  A * x = | 1 0 | * |2| = |2|
          | 0 1 |   |1|   |1|
          | 1 1 |   |2|   |4|

3. Subtract the nullspace vector from the product obtained in step 2 to get the third column vector (C):

  C = Ax - x = | 2 - 2 | = | 0 |
               | 1 - 1 |   | 0 |
               | 4 - 2 |   | 2 |

4. Combine the matrix A with the third column vector C to form the final matrix B:

  B = | 1 0 0 |
      | 0 1 0 |
      | 1 1 2 |

The matrix B has the required column space containing [1, 0, 1] and [0, 1, 1] and a nullspace containing [2, 1, 2].

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The area of region d is 4.5π.

To find the area of region d between the circles of radius 4 and radius 5 centered at the origin in the second quadrant, we can use the following steps:

Find the area of the larger circle (radius 5) and subtract the area of the smaller circle (radius 4) to find the area of the annulus (ring-shaped region) between them:

Area of larger circle = π[tex](5)^2[/tex] = 25π

Area of smaller circle = π[tex](4)^2[/tex] = 16π

Area of annulus = (25π) - (16π) = 9π

Divide the annulus into two equal parts since we are only interested in the portion of the region in the second quadrant. This gives us:

Area of region d = 1/2 (9π) = 4.5π

Therefore, the area of region d is 4.5π.

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To create a price prediction model for a used Toyota Corolla based on the given data, follow these steps:

1. Open Excel and import the dataset containing 1436 vehicles' selling price and odometer reading (km).

2. Click on the Data tab, then select Data Analysis, and choose Regression.

3. Select the appropriate input ranges for your dependent variable (selling price) and independent variable (odometer reading), and set alpha to 0.025.

4. Click on the Output Range to select the desired location for the regression statistics, then click OK.

Now, interpret the regression statistics:
- The R-squared value indicates how well the model fits the data.

- The p-value associated with the odometer reading will determine its significance in predicting the selling price. If p < 0.025, it's significant.

If the vehicle's KM driven is significant in predicting the selling price, the expected selling price, as well as the upper and lower limits (97.5% confidence interval), can be calculated using the regression coefficients.

To check for outliers in the dataset:
1. Calculate the residuals by subtracting the predicted selling prices from the actual selling prices.

2. Identify any outliers based on unusual residual values.

3. If outliers are present, remove them and perform the regression analysis again.

4. Compare the new R-squared value with the original model to determine if the model's explanatory power has improved.

In summary, use Excel's regression analysis tool with an alpha of 0.025 to create a simple regression model, interpret the regression statistics, determine if the vehicle's KM driven is significant, and calculate the expected selling price for a Toyota Corolla with 23500 km on the odometer.

Check for outliers and their impact on the model's explanatory power.

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The simple interest rate of the loan is 8.8%. We can use the formula for simple interest to find the interest rate:

I = P * r * t

where I is the interest charged, P is the principal amount (the amount loaned), r is the interest rate, and t is the time period.

In this case, we know that P = $5,000, t = 2 years, and I = $880. Plugging these values into the formula, we get:

$880 = $5,000 * r * 2

Simplifying this expression, we get:

r = $880 / ($5,000 * 2)

r = 0.088 or 8.8%

Therefore, the simple interest rate of the loan is 8.8%.

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Right endpoint estimate with n = 6 gives an estimated value of 8648.89 for the integral.

Using the right endpoint estimate with n = 6, we have:

Δx = (b - a)/n = (4 - 0)/6 = 2/3

The right endpoints are x1 = 2/3, x2 = 4/3, x3 = 2, x4 = 8/3, x5 = 10/3, x6 = 4.

So, the integral can be estimated by:

∫604x2dx ≈ Δx [f(x1) + f(x2) + f(x3) + f(x4) + f(x5) + f(x6)]

where f(x) = 604x2.

Plugging in the values, we get:

∫604x2dx ≈ (2/3) [604(2/3)2 + 604(4/3)2 + 604(2)2 + 604(8/3)2 + 604(10/3)2 + 604(4)2]

Simplifying, we get:

∫604x2dx ≈ 8648.89

Therefore, the right endpoint estimate with n = 6 gives an estimated value of 8648.89 for the integral.

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To determine which of the two forecasts (a or b) is more accurate, you must compare their MAD values. The forecast with the lower MAD value is considered more accurate. The MAD value of forecasts a and b can be calculated by finding the absolute value of the difference between each forecasted value and its corresponding actual value, then taking the average of those differences.

Explanation:

To calculate the MAD (Mean Absolute Deviation) for each forecast, you need to find the absolute value of the difference between the forecasted values and the actual values, then take the average of those differences. To calculate the MAD (Mean Absolute Deviation) for each forecast, you'll need to follow these steps:

Step 1: Find the absolute differences between the actual data points and the forecasted values.
Step 2: Sum up these absolute differences.
Step 3: Divide the total sum by the number of data points.


a) To determine which of the two forecasts (a or b) is more accurate, you must compare their MAD values. The forecast with the lower MAD value is considered more accurate, as it signifies smaller deviations from the actual data points.

b) The MAD value of forecast a can be calculated by finding the absolute value of the difference between each forecasted value and its corresponding actual value, then taking the average of those differences.

c) Similarly, the MAD value of forecast b can be calculated by finding the absolute value of the difference between each forecasted value and its corresponding actual value, then taking the average of those differences.

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The system of inequalities that describes this situation is;

x + y ≥ 8

x*15 + y*30 ≤ 300

Let's define the variables that we need to use.

He wants at least 8 tickets, then the first inequality is:

x + y ≥ 8

And he wants to spend no more than $300, then:

x*15 + y*30 ≤ 300

Then that is the system of inequalities.

x + y ≥ 8

x*15 + y*30 ≤ 300

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If t=0 in an independent-measures hypothesis test, it indicates that b) the two sample means must be equal

An independent-measures hypothesis test compares the means of two independent samples to determine if there is a significant difference between them. The test uses a t-value to evaluate whether the difference between the two sample means is greater than what would be expected by chance.

If the calculated t-value is equal to 0, it means that the difference between the two sample means is not statistically significant. In other words, the null hypothesis cannot be rejected. Therefore, we cannot conclude that there is a significant difference between the two population means.

Therefore, option (b) is correct, as the two sample means must be equal if the t-value is equal to 0. Option (a) is incorrect because the equality of population means is not directly related to the t-value being 0.

Option (c) is also incorrect because the equality of sample variances is not a requirement for the t-value to be 0 in an independent-measures hypothesis test.

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To calculate the value of the sample test statistic for the difference between two population means (μ1 - μ2), you need to use the following formula:

t = (M1 - M2 - 0) / √[(s1^2 / n1) + (s2^2 / n2)]

Here, M1 and M2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.

To provide you with an accurate answer, please provide the required information (M1, M2, s1, s2, n1, and n2). Once you provide these values, I can help you calculate the test statistic rounded to three decimal places.

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La tableta de chocolate de Demetrio puede representarse como la unidad entera. Si Demetrio dejó 1/4 de la tableta para sí mismo, entonces se puede decir que se comió 3/4 de la tableta.

A continuación, si le dio 1/3 de la tableta a su hermano, entonces queda:

3/4 x 1/3 = 1/4

Por lo tanto, Demetrio le dio 1/4 de la tableta a su hermano.

Teniendo en cuenta que le quedaba 1/4 de la tableta, se puede deducir que eso es lo que le dio a su profesor.

En resumen, Demetrio se comió 3/4 de la tableta, le dio 1/4 de la tableta a su hermano y el otro 1/4 de la tableta se lo dio a su profesor.

Answer:

10 km/hr.

Step-by-step explanation:

Speed of the boat with the current = 20 + c   where c is the speed of the current.

Against the current the speed is 20 - c.

Distance = speed * time :

With the current:

180 = (20 + c)t..........A

Against the current:

20 = (20 - c)(8- t)......B

Solving this system of equations:

From A:

t = 180/(20 + c)

So

20 = (20 - c)(8 - 180/(20+c))

160 - 3600/(20 + c) - 8c  + 180c/(20 + c) = 20

Mltiplying throagh by (20 + c):

160(20 + c) - 3600 - 8c(20 + c) + 180c = 20(20 + c)

3200 + 160c - 3600 - 160c - 8c^2 + 180c - 400 - 20c = 0

-8c^2 + 160c  - 800 = 0

8c^2 - 160c + 800 = 0

c^2 - 20c + 100 = 0

(c - 10)*2 = 0

c = 10

So the speed of the crrent = 10 km/hr

Note that the values of the six trigonometric functions of θ are:

Given that sin(θ) = 0 and that π/2 ≤ θ ≤ 3π/2, we need to find the values of the six trigonometric functions of θ.

Since sin(θ) = 0, we know that θ must be an integer multiple of π. However, since θ also satisfies the condition π/2 ≤ θ ≤ 3π/2, the only possible values of θ that satisfy sin(θ) = 0 are θ = π/2 or θ = 3π/2.

Using these values, we can calculate the values of the other trigonometric functions:

cos(θ) = cos(π/2) = 0 (when θ = π/2)

cos(θ) = cos(3π/2) = 0 (when θ = 3π/2)

tan(θ) = sin(θ)/cos(θ) = UNDEFINED (since cos(θ) = 0)

csc(θ) = 1/sin(θ) = UNDEFINED (since sin(θ) = 0)

sec(θ) = 1/cos(θ) = UNDEFINED (since cos(θ) = 0)

cot(θ) = cos(θ)/sin(θ) = UNDEFINED (since sin(θ) = 0)

So the values of the six trigonometric functions of θ are:

sin(θ) = 0

cos(θ) = 0

tan(θ) = UNDEFINED

csc(θ) = UNDEFINED

sec(θ) = UNDEFINED

cot(θ) = UNDEFINED

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A function f: A--B is injective if each element in A maps to a unique element in B. It is surjective if every element in B has a corresponding element in A.

A bijective function is both injective and surjective, meaning that every element in A maps to a unique element in B, and every element in B has a corresponding element in A.  If IAI = IBI, then there are the same number of elements in A and B. Therefore, if f is injective, every element in A must map to a unique element in B, leaving no elements in B without a corresponding element in A. This means that f is also surjective. Similarly, if f is surjective, then every element in B has a corresponding element in A, which means that f is also injective. Thus, f is bijective if and only if it is injective and surjective.

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Answer:

f^(-1)(x) = sqrt(x/49)

Step-by-step explanation:

To find the inverse function of f(x) = 49x^2, we need to solve for x in terms of f(x) and then interchange x and f(x).

f(x) = 49x^2

f(x)/49 = x^2

sqrt(f(x)/49) = x (since x > 0)

So, the inverse function of f(x) is:

f^(-1)(x) = sqrt(x/49)

Note that the domain of f^(-1) is x ≥ 0, since x must be positive for the inverse function to be defined. Also, note that f(f^(-1)(x)) = f(sqrt(x/49)) = 49(sqrt(x/49))^2 = 49(x/49) = x, and f^(-1)(f(x)) = sqrt(f(x)/49) = sqrt(49x^2/49) = x. Therefore, f^(-1) is the inverse function of f.

The absolute maximum value of f(x) on the interval [1, 4] is 1.5, which occurs at x = 1, and the absolute minimum value is 0.176, which occurs at x = 4.

To find the absolute maximum and minimum values of the function f(x) = 3/(x^2 + 1) on the interval [1, 4], we need to first find the critical points and then evaluate the function at the endpoints of the interval.

Critical points occur where the derivative of the function is equal to 0 or is undefined.

First, find the derivative of f(x):
f'(x) = -6x / (x^2 + 1)^2

To find the absolute maximum and minimum values of the function f(x) = 3/(x^2 + 1) on the interval [1, 4], we need to first find the critical points and the endpoints of the interval.
f'(x) = -6x/(x^2 + 1)^2 = 0

Next, we evaluate the function at the endpoints of the interval:
f(1) = 3/(1^2 + 1) = 1.5
f(4) = 3/(4^2 + 1) = 0.176
Set f'(x) to 0 and solve for x:
-6x / (x^2 + 1)^2 = 0

Since the denominator can never be 0, the only way this equation can be true is if the numerator is 0:
-6x = 0
x = 0

However, x = 0 is not in the interval [1, 4], so there are no critical points in the interval.

Now, evaluate the function at the endpoints of the interval:
f(1) = 3/(1^2 + 1) = 3/2 = 1.5
f(4) = 3/(4^2 + 1) = 3/17 ≈ 0.2

Since there are no critical points in the interval, the absolute maximum and minimum values occur at the endpoints. Thus, the absolute maximum value is 1.5 at x = 1, and the absolute minimum value is approximately 0.2 at x = 4.

Answer: Absolute maximum = 1.5 at x = 1
Absolute minimum ≈ 0.2 at x = 4

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To find the implicit solution for dy/dx = x^2/(1-y^2), we can start by separating the variables and integrating both sides.

dy/(1-y^2) = x^2 dx

To integrate the left-hand side, we can use partial fractions:

dy/(1-y^2) = (1/2) * (1/(1+y) + 1/(1-y)) dy

Integrating both sides, we get:

(1/2) * ln|1+y| - (1/2) * ln|1-y| = (1/3) * x^3 + C

Where C is the constant of integration.

We can simplify this expression by combining the natural logs:

ln|1+y| - ln|1-y| = (2/3) * x^3 + C'

Where C' is a new constant of integration.

Finally, we can use the logarithmic identity ln(a) - ln(b) = ln(a/b) to get the implicit solution:

ln|(1+y)/(1-y)| = (2/3) * x^3 + C''

Where C'' is a final constant of integration.

Therefore, the implicit solution for dy/dx = x^2/(1-y^2) is ln|(1+y)/(1-y)| = (2/3) * x^3 + C''.

Given the differential equation:

dy/dx = x^2 / (1 - y^2)

To find an implicit solution, we can use separation of variables. Rearrange the equation to separate the variables x and y:

(1 - y^2) dy = x^2 dx

Now, integrate both sides with respect to their respective variables:

∫(1 - y^2) dy = ∫x^2 dx

The result of the integrations is:

y - (1/3)y^3 = (1/3)x^3 + C

This is the implicit solution to the given differential equation, where C is the integration constant.

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Abdul gave 7 correct answers in the maths paper.

To find the number of correct answers given by Abdul in a maths paper with 10 questions, let's use the given information about the scoring system and set up an equation.
Let x be the number of correct answers and y be the number of wrong answers. We know that:
x + y = 10 (total questions)
5x - 2y = 29 (marks scored)
We can solve this system of linear equations step-by-step:
Solve the first equation for x:
x = 10 - y
Substitute this expression for x in the second equation:
5(10 - y) - 2y = 29
Simplify and solve for y:
50 - 5y - 2y = 29
50 - 7y = 29
7y = 21
y = 3
Substitute the value of y back into the expression for x:
x = 10 - 3
x = 7
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Answer:It is the one where the subway is the biggest

Step-by-step explanation:

because in the graph  it shows the subway is the biggest number