I NEED HELP GUYS PLS NEED THIS BY FRIDAY

The solution (x, y, z) = (3, 5, -2) is verified to be true.

A 3x3 linear system whose solution is (x, y, z) = (3, 5, -2) is:

1x + 3y - z = 9

3x - 2y + 4z = 6

4x + y - z = 7

Verifying that (x, y, z) = (3, 5, -2) is the solution to this system:

1x + 3y - z = 9

1*3 + 3*5 - (-2) = 9

9 = 9, which is true.

3x - 2y + 4z = 6

3*3 - 2*5 + 4*(-2) = 6

6 = 6, which is true.

4x + y - z = 7

4*3 + 5 - (-2) = 7

7 = 7, which is true.

Therefore, the solution (x, y, z) = (3, 5, -2) is verified to be true.

Application of the following methods with the linear system:

In Gauss-Jordan Elimination, the matrix is reduced to reduced row-echelon form, with the right side becoming the solution. This can be done to the linear system:

1x + 3y - z = 9

3x - 2y + 4z = 6

4x + y - z = 7

By rearranging the equation and performing elimination, the system can be reduced to:

1 0 0 | 9

0 1 0 | 5

0 0 1 | -2

Therefore, the solution (x, y, z) = (3, 5, -2) is verified to be true.

In the Inverse Matrix Method, an inverse matrix is calculated and multiplied by the right side of the equation to get the solution. This can be done to the linear system:

1x + 3y - z = 9

3x - 2y + 4z = 6

4x + y - z = 7

By rearranging the equation and multiplying the inverse of the matrix with the right side of the equation, the solution can be found:

(1/17) * (1 -3 4 | 9)

(1/17) * (-3 2 -1 | 6)

(1/17) * (4 -1 1 | 7)

This yields the solution (x, y, z) = (3, 5, -2). Therefore, the solution (x, y, z) = (3, 5, -2) is verified to be true.

In Cramer's Rule, the determinants of the matrix are calculated and the solutions are found by dividing the determinant of the coefficient matrix by the determinants of the matrices that contain only one variable. This can be done to the linear system:

1x + 3y - z = 9

3x - 2y + 4z = 6

4x + y - z = 7

The determinant of the coefficient matrix is 17, and the determinants of the matrices that contain only one variable are the following:

x: 13

y: -7

z: 14

Dividing the determinants yields:

x = 13/17 = 0.76

y = -7/17 = -0.41

z = 14/17 = 0.82

Therefore, the solution (x, y, z) = (3, 5, -2) is verified to be true.

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The polynomial of best fit for this set of points is p(x) = a0 + a1x + a2x^2, where a0, a1, and a2 are the coefficients that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

The polynomial of best fit for a set of points is the polynomial that most closely fits the points. In order to find the polynomial of best fit, we need to use the method of least squares. This involves finding the coefficients a0, a1, and a2 that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

1. First, we need to set up a system of equations using the given points:
a0 + a1(x1) + a2(x1)^2 = y1
a0 + a1(x2) + a2(x2)^2 = y2
a0 + a1(x3) + a2(x3)^2 = y3

2. Next, we need to solve this system of equations for a0, a1, and a2. This can be done using matrix operations or by using substitution and elimination.

3. Once we have found the values of a0, a1, and a2, we can plug them back into the equation for the polynomial of best fit:
p(x) = a0 + a1x + a2x^2

4. Finally, we can use this polynomial to make predictions for other x-values and compare them to the actual y-values to see how well the polynomial fits the data.

So, the polynomial of best fit for this set of points is p(x) = a0 + a1x + a2x^2, where a0, a1, and a2 are the coefficients that minimize the sum of the squared differences between the actual y-values and the predicted y-values of the polynomial.

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Prism:
- Minimum number of faces: 5 (2 bases and 3 lateral faces)
- Minimum number of edges: 9 (3 edges on each base and 3 lateral edges)

Pyramid:
- Minimum number of faces: 4 (1 base and 3 lateral faces)
- Minimum number of edges: 6 (3 edges on the base and 3 lateral edges)

Polyhedron:
- Minimum number of faces: 4 (a tetrahedron)
- Minimum number of edges: 6 (a tetrahedron)

a. A prism is a polyhedron with two parallel congruent bases and rectangular faces connecting the bases. The minimum number of faces for a prism is 5: two bases and three rectangular faces. The minimum number of edges for a prism is 9: three edges connecting each vertex of one base to the corresponding vertex of the other base, and six edges connecting the vertices of the rectangular faces to the vertices of the bases.

b. A pyramid is a polyhedron with a polygonal base and triangular faces connecting the base to a common vertex. The minimum number of faces for a pyramid is 4: one polygonal base and three triangular faces. The minimum number of edges for a pyramid is 6: one edge for each side of the polygonal base, and three edges connecting each vertex of the base to the common vertex.

c. A polyhedron is a three-dimensional shape with flat faces and straight edges. The minimum number of faces and edges for a polyhedron depends on the specific shape, and there is no general formula to determine the minimum values. For example, a tetrahedron has 4 triangular faces and 6 edges, while a cube has 6 square faces and 12 edges. The minimum number of faces and edges for a polyhedron can be calculated by examining the shape and its properties, such as symmetry and number of vertices.

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1. The value of (-g)(x) is [tex]-x^2 + 3x - 3[/tex].

Thus, option (d) is correct.

2. The domain is all real numbers or in interval notation: (-∞, ∞).

Given Function: f(x) = 2x -1 and g(x) = [tex]x^2 + x - 2[/tex]

Now, simplify the expression by distributing the negative sign:

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

Therefore, the simplified expression is [tex]-x^2 + 3x - 3[/tex].

Thus, option (d) is correct.

2. Given function: f(x) = 3 (x-4)

The domain of a function is the set of all possible input values (x-values) for which the function is defined and produces a real output.

In this case, consider any restrictions on x that would make the expression 3(x - 4) undefined.

The function f(x) = 3(x - 4) is defined for all real numbers because there are no restrictions or divisions by zero involved.

Therefore, the domain is all real numbers.

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The question attached here is in incorrect form, the correct form is:

1. Let f(x) = 2x -1 and g(x) = [tex]x^2 + x - 2[/tex]. What is ( - g)(x) equal to?

Select one: a. [tex]-x^2 + x +1[/tex]

b. [tex]x^2 + 3x - 3[/tex]

c. [tex]2x - 1 - x^2 + x - 2[/tex]

d. [tex]-x^2 + 3x - 3[/tex]

2. Find the domain of f(x) = 3(x - 4).

Using point-slope form, the coordinate of D(2, X) is 2 units away from point X(1, 1).

To find the coordinates of point D, we need to know the location of point X on the line YZ. We can use the slope-intercept form of the equation of a line to find the equation of the line passing through points Y and Z:

slope m = (y2 - y1) / (x2 - x1) = (0 - 2) / (3 - 2) = -2

Using the point-slope form of the equation of a line with point Y(2, 2) and slope m = -2:

y - y1 = m(x - x1)

y - 2 = -2(x - 2)

y - 2 = -2x + 4

y = -2x + 6

Now we can substitute x = 2 into the equation of the line to find the y-coordinate of point D:

y = -2x + 6

y = -2(2) + 6

y = 2

Therefore, the coordinates of point D are (2, 2).

So, D(2, 2) is the point that lies on line YZ and is 2 units away from point X(1, 1).

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Dr. Bills Payable A/C 5,400 and Cr. Bank A/C 5,400

In the books of Brown:

Dr. Bank A/C 6,000

Cr. Bills Receivable A/C 6,000


On 3.2.2011:

Dr. Bills Receivable A/C 5,400

Cr. Bank A/C 5,400


On the due date:

Dr. Bills Receivable A/C 5,400

Cr. Black A/C 5,400


In the books of Black:

Dr. Bills Payable A/C 5,400

Cr. Bank A/C 5,400

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The value of x in the given figure of parallel lines is x = 0.89.

When two parallel lines are sliced by a transversal, alternating interior angles and alternate exterior angles result in the shape "Z".

From the figure we observe that according to alternate interior angle, the angle adjacent to x + 94 is 95x.

Thus, the two angles form a straight line.

The angle of a straight line is 180 degrees.

Thus,

x + 94 + 95x = 180

96x + 94 = 180

x = 0.89

Hence, the value of x in the given figure of parallel lines is x = 0.89.

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The probability for the bear visits using Poisson process of rate one visits per month is given by ,

P(X=i, Y=j) j=i                            j=2i                                        j=3i

X=i              e^(-1)(1/ i!) × 1/3^i 1/3^i + 4/3^(i-1) × e^(-1)/i!     2/3^i× e^(-1)/i!

Bear visits form a Poisson process of rate 1 visit per month.

Number of visits in a month  = Poisson distribution with parameter λ = 1.

Let X be the number of visits in a month.

And Y be the total number of bears in the month.

Probability of X and Y is equal to ,

P(X = i, Y = j), for i = 0, 1, 2, 3 and j = i, 2i, or 3i.

Law of total probability for  P(X = i, Y = j) for each i and j.

P(X = i, Y = i)

= P(X = i) × P(Y = i | X = i)

= e^(-λ) × λ^i / i! × 1/3^i

= e^(-1) × 1^i / i! × 1/3^i

= e^(-1) (1/ i!) × 1/3^i

Now,

P(X = i, Y = 2i)

= P(X = i) × P(Y = 2i | X = i)

= e^(-λ) × ( λ^i / i!) ×  [(1/3)^i + 2(1/3)^(i-1)(2/3)]

= e^(-1) / i! × [1/3^i + 4/3^i-1]

For,

P(X = i, Y = 3i)

= P(X = i) × P(Y = 3i | X = i)

= e^(-λ) × λ^i / i! × (1/3)^i × 2

= 2e^(-1) / i! × 1/3^i

Therefore, the probability of the size of bears for given condition is equal to,

P(X=i, Y=j) j=i                            j=2i                                        j=3i

X=i              e^(-1)(1/ i!) × 1/3^i 1/3^i + 4/3^(i-1) × e^(-1)/i!     2/3^i× e^(-1)/i!

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The given question is incomplete, I answer the question in general according to my knowledge:

A village in Alaska is sometimes visited by polar bears. In fact, bear visits form a Poisson process of rate 1 visits per month. At each visit a group of bears shows up; the size of a group is equal to 1,2, or 3 with equal opportunity. Find the probability for each size.

The pair of fractions that are equal are (10)/(30) & (13)/(39).

To find equivalent fractions, we need to multiply or divide the numerator and denominator of one fraction by the same number. This will give us a new fraction that is equivalent to the original one.

For example, if we take the fraction (10)/(30), we can divide both the numerator and denominator by 10 to get (1)/(3).

Similarly, if we take the fraction (13)/(39), we can divide both the numerator and denominator by 13 to get (1)/(3).

Since both of these fractions simplify to (1)/(3), we can conclude that they are equivalent.

Therefore, pair of fractions having equal values are (10)/(30) & (13)/(39).

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Answer:

The given information that the graph of a polynomial function continues down on the left and continues up on the right is an indication that the degree of the polynomial is odd.

If the degree of the polynomial is odd, then the leading coefficient must be either positive or negative depending on the end behavior of the graph.

Since the graph continues down on the left and up on the right, the end behavior indicates that the leading coefficient is negative.

Therefore, the only option that satisfies the given information is:

d) The function is odd, with a negative leading coefficient.

Carter will have to work about 33 hours in order to save $300.

To find out how many hours Carter will have to work in order to save $300, we can use the following steps:

1. First, we need to determine how much Carter saves per hour. Since he saves (3)/(5) of his earnings, we can multiply his hourly wage by (3)/(5) to find out how much he saves per hour:

$15.25 * (3)/(5) = $9.15

2. Next, we need to determine how many hours Carter will have to work in order to save $300. To do this, we can divide $300 by the amount he saves per hour:

$300 / $9.15 = 32.79 hours

3. Since Carter can't work a fraction of an hour, we'll round up to the nearest whole hour:

33 hours

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Step-by-step explanation:

Refer to pic...............

The measure of the central angle defined by the arc in radians can be found using the formula:

θ = s/r

where θ is the central angle in radians, s is the arc length, and r is the radius.

Plugging in the given values:

θ = (23π)/(23)

θ = π

Therefore, the correct answer is e. None of these are correct, as the measure of the central angle in radians is π.

Therefore by increasing  [tex]\alpha[/tex] smoothing characteristics we can achieve minimum MSE which is good for forecasting in exponential smoothing.

Therefore the pattern of the data is a horizontal pattern in time series.

The given data can be summarized as follows:

Week Value

1 24

2 13

3 20

4 12

5 19

6 23

7 15

a) To calculate a two-week moving average, we first need to calculate the average of the first two weeks:

[tex]MA_{1}=\frac{24+13}{2}=18.5[/tex]

Then we can calculate the moving average for the second week as follows:

[tex]MA_{2}=\frac{13+20}{2}=16.5[/tex]

Similarly, we can calculate the moving averages for the rest of the weeks:

Week Value Two-Week Moving Average

1 24

2 13 18.5

3 20 16.5

4 12 16.0

5 19 15.5

6 23 21.0

7 15 19.0

The forecast for the fourth week is the moving average for the second week (16.5), and the forecast for the fifth week is the moving average for the third week (16.0), and so on. The forecast error is the difference between the forecast value and the actual value.

Week Value Two-Week Moving Average Forecast Forecast Error

1 24  

2 13 18.5  

3 20 16.5  

4 12 16.0 16.5 -4.5

5 19 15.5 16.0 3.0

6 23 21.0 15.5 7.5

7 15 19.0 21.0 -6.0

The mean squared error (MSE) is the average of the squared forecast errors:

MSE= [tex]\frac{(-4.5)^{2}+3^{2}+7.5^{2}+(-6)^{2}}{4}=33.375[/tex]

The forecast for the eighth week is the moving average for the seventh week (19.0).

b) To calculate a three-week moving average, we first need to calculate the average of the first three weeks:

[tex]MA_{2}=\frac{24+13+20}{3}=19.0[/tex]

Then we can calculate the moving average for the third week as follows:

[tex]MA_{3}=\frac{13+20+12}{3}=15.0[/tex]

Similarly, we can calculate the moving averages for the rest of the weeks:

Week Value Three-Week Moving Average

1 24

2 13

3 20 19.0

4 12

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Quadrilateral QRST would become a Rhombus if all the conditions discussed below are fulfilled.  

What is a Rhombus?

Rhombuses are a particular sort of quadrilateral in Euclidean geometry. It is a unique instance of a parallelogram in which the diagonals meet at a 90-degree angle and all sides are equal. This is a rhombus' fundamental characteristic. A rhombus has a diamond-shaped form. As a result, it is also known as a diamond.

Given QRST Quadrilateral.

In order to be Rhombus, these conditions must fulfill:

1. all sides are equal i.e. QT=TS=SR=RQ

2. Diagonals meet at 90-degree i.e. ∠11 = ∠10=∠9=∠12 = 90°

3. Diagonals bisect the angles of a rhombus i.e. ∠6=∠7, ∠5=∠4, ∠3=∠2 and ∠8=∠1.

4. Opposite angles are equal.

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To make a parallelogram a rhombus, make its sides equal, angles should be 90° and diagonals should be equal.

What is a parallelogram?

A quadrilateral with two sets of parallel sides is referred to as a parallelogram. In a parallelogram, the opposing sides are of equal length, and the opposing angles are of equal size. Additionally, the interior angles that are additional to the transversal on the same side.

A parallelogram becomes a rhombus if and only if all four sides are congruent, which means they have the same length.

Therefore, to make the parallelogram QRST a rhombus, we need to ensure that all four sides are of equal length.

This can be achieved by satisfying any of the following conditions -

All four sides have the same length.

The diagonals of the parallelogram are perpendicular bisectors of each other.

In other words, they meet at right angles and divide each other into equal halves.

The diagonals of the parallelogram have equal length.

Therefore, if we can make sure that any of these three conditions are true for the parallelogram QRST, then we can make it a rhombus.

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The pOH of a solution containing [OH-] = 4.91 x 10-11 mol L-1 is 10.3. We can round the pOH to 10.3.

The pOH of a solution is the negative logarithm of the concentration of hydroxide ions (OH-) in the solution. It can be calculated using the formula:

pOH = -log[OH-]

In this case, the concentration of hydroxide ions is [OH-] = 4.91 x 10-11 mol L-1. Plugging this value into the formula, we get:

pOH = -log(4.91 x 10-11)

Using a calculator, we can find the pOH to be 10.309.

To report the answer to at least 1 decimal place, we can round the pOH to 10.3.

Therefore, the pOH of a solution containing [OH-] = 4.91 x 10-11 mol L-1 is 10.3.

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The height in meters is 1.73 meters (rounded to two decimal places), the weight in other unit (kg) approximately 92.1 kg.The distance ran is approximately 546 meters

The distance you have run is 597 yards. To convert yards to meters, we can use the conversion factor 1 yard = 0.9144 meters. Therefore, the distance you have run in meters is approximately 546 meters (rounded to the nearest meter).

Your weight is currently expressed in pounds (lbs). To express your weight in other units, we can use conversion factors. For example, your weight in kilograms (kg) can be found by multiplying your weight in pounds by 0.453592. Using this conversion, your weight would be approximately 92.1 kg (rounded to one decimal place). Alternatively, your weight in stones (st) can be found by dividing your weight in pounds by 14. Using this conversion, your weight would be approximately 14.5 st (rounded to one decimal place).

Therefore, the hieght, weight and distance ran are 1.73 meters,  92.1 kg and 546 meters respectively.

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The question is :

What is the height in meters and how many meters has he run, and in what unit could you express his weight, for someone who is 5 ft 8 in tall and weighs 203 lbs and ran a distance of 597 yards ?

The expression which represents t as the subject of the formula is; t = (p + 4s) / √(s (3s - p)).

As evident in the task content; it follows that the expression which represents t as the subject of the formula is to be determined.

Given; ( (p + 4s) / t )² = s (3s - p)

(p + 4s) / t = √(s (3s - p))

t = (p + 4s) / √(s (3s - p))

Ultimately, the correct expression is; t = (p + 4s) / √(s (3s - p)).

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A box and whisker plot is the appropriate display for the data, as it shows the minimum and the maximum value of the data-set, while the range is the difference of the maximum value by the minimum value.

From left to right, the five features of the box and whisker plot are listed as follows

The range of a data-set is given as follows:

Range = Maximum value - Minimum value.

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The following are the values for the missing measures of x in the set of similar polygons:

1). x = 14

2). x = 9

3). x = 3

4). x = 2.

Given that each set of polygons are similar so:

1). 4/10 = 5.6/x

x = (5.6 × 10)/4 {cross multiplication}

x = 56/4

x = 14

2). x/18 = 6/12

x = (6 × 18)/12 {cross multiplication}

x = 9

3). x/4 = 4.5/6

x = (4.5 × 4)/6 {cross multiplication}

x = 18/6

x = 3

4). x/8 = 5/20

x = (8 × 5)/20 {cross multiplication}

x = 4/2

x = 2

The following are the values for the missing measures of x in the set of similar polygons:

1). x = 14

2). x = 9

3). x = 3

4). x = 2.

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The simplified expression is [tex](z^{(16))}(y^{(12))}/(100663296)(x^{(8))}[/tex].

To simplify the expression ((4x^(2)z^(-4))/(20y^(-3)))^(-4) using the properties of exponents, we need to follow the steps below:

1. First, we need to distribute the exponent of -4 to each term inside the parentheses. This will give us:

(4^(-4))(x^(2*-4))(z^(-4*-4))/(20^(-4))(y^(-3*-4))

2. Next, we need to simplify the exponents by multiplying them. This will give us:

[tex](4^(-4))(x^(-8))(z^(16))/(20^(-4))(y^(12))[/tex]

3. Now, we need to simplify the terms with negative exponents by moving them to the opposite side of the fraction. This will give us:

[tex](z^(16))(y^(12))/(4^(4))(x^(8))(20^(4))[/tex]

4. Finally, we need to simplify the terms with the same base by adding their exponents. This will give us:
[tex](z^(16))(y^(12))/(4^(4))(x^(8))(2^(8))(5^(8))[/tex]

5. We can further simplify the expression by simplifying the terms with the same base. This will give us:

(z^(16))(y^(12))/(16^(2))(x^(8))(2^(8))(5^(8))

6. Now, we can combine the terms with the same base to get our final answer:

(z^(16))(y^(12))/(256)(x^(8))(256)(390625)

7. Our final answer is:

(z^(16))(y^(12))/(100663296)(x^(8))

Therefore, the simplified expression is (z^(16))(y^(12))/(100663296)(x^(8)).

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While waiting for your sister to finish her bungee jump, you decide to figure out how tall the platform she is jumping off is. The height of the platform is 106ft.

We can use trigonometry to find the height of the platform.

Let's h represent the height of the platform. The angle between the ground and our line of sight to the top of the platform is 90 - 62 = 28 degrees.

The distance between our position and the top of the platform is the hypotenuse of a right triangle with one leg of length 200 feet and an angle of 28 degrees. We can use the tangent function to find the height of the platform:

tan(28) = h/200

To solve for h, we can multiply both sides by 200:

h = 200 * tan(28)

h = 200 * 0.532

h = 106 feet

Therefore, the platform is approximately 106 feet tall.

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The solution to the equation f(x) = g(x) is given as follows:

x = 5.

To find the numeric value of a function or of an expression, we replace each instance of the variable in the function or in the expression by the value at which we want to find the numeric value.

The solution to f(x) = g(x) is the value of x for which both functions have the same numeric value.

At x = 5, the numeric values of the function are given as follows:

Same numeric values, hence x = 5 is the solution to the equation.

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Answer:1 4/10

Step-by-step explanation:

We can reduce this to lowest terms by dividing the numerator and denominator or 4/10 by 2 to get the equivalent fraction 1 and 2/5

Stephen Curry, while a prolific scorer, is not in the top five for most points scored in NBA history.

The player with the most points in NBA history is c) Kareem Abdul-Jabbar. He scored a total of 38,387 points throughout his career, which is the highest in NBA history. Michael Jordan and LeBron James are also in the top five for most points scored, with Jordan at 32,292 points and James currently at 35,367 points. Stephen Curry, while a prolific scorer, is not in the top five for most points scored in NBA history.

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Answer:

$1,111.88

Step-by-step explanation:

To calculate the monthly payment for a $60,000 loan compounded monthly for 5 years at a 4.0% interest rate, we can use the formula:

P = PV(i / (1 - (1 + i)^(-n)))

where:

P = monthly payment

PV = present value or loan amount

i = interest rate per period

n = total number of periods

In this case, the loan amount is $60,000, the interest rate per period is 4.0% / 12 = 0.00333, and the total number of periods is 5 years x 12 months/year = 60 months.

Substituting these values into the formula, we get:

P = 60000(0.00333 / (1 - (1 + 0.00333)^(-60)))

P = $1,111.88 (rounded to the nearest cent)

Therefore, the monthly payment for a $60,000 loan compounded monthly for 5 years at a 4.0% interest rate is $1,111.88.

The answer is (r, θ) = (5, π).

To convert the rectangular coordinates (-5,0) to polar coordinates (r, θ) with r > 0 and 0 < θ < 2π, we can use the following formulas:

r = √(x² + y²)

θ = tan⁻¹(y/x)

First, we need to find the value of r.

r = √((-5)² + (0)²)

r = √(25 + 0)

r = 5

Next, we need to find the value of θ.

θ = tan⁻¹(0/(-5))

θ = tan⁻¹(0)

θ = 0

However, since we need 0 < θ < 2π and the point (-5,0) is in the second quadrant, we need to add π to our θ value.

θ = 0 + π

θ = π

So, the polar coordinates of the point (-5,0) are (r, θ) = (5, π).

Therefore, the answer is (r, θ) = (5, π).

Learn more about rectangular coordinates

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Answer:

57,600 if talking about hundreds. If talking about hundredths, 57.61

Answer:

57600

Step-by-step explanation:

nearest hundred (100)

614 is closer to 600

from 651 it becomes near 700 therefore the answer becomes 57600

Answer:

The possible number of hours Yolanda could rent the boat is 6 hours. I hope this isn't too late, and it's not incorrect lol

Step-by-step explanation:

7t - 3 ≤ 39

*We add 3 to both sides, which will cancel out the 3.*

7t ≤ 42

*We divide 42 by 7 to isolate the variable*

t ≤ 6

Step-by-step explanation:

3.

the sum of all internal angles in a quadrilateral is always 360°.

so, the internal angle at x is given by

360 = 40 + 80 + 110 + inner angle

inner angle = 360 - 40 - 80 - 110 = 130°

an inner and an outer angle combined are together always 180°.

so,

130 + x = 180

x = 50°

4.

first, again, the sum of all inner angles is 360°.

this is a parallelogram. that means the diagonally opposing angles are equal.

so, the angle opposite of the 38° angle is also 38°.

that leaves

360 - 38 - 38 = 284°

for the 2 (again equal) remaining angles :

284 = 2 × angle

each of these remaining angles is then

284/2 = 142°

the angle JML is one of them.

so,

angle JML = 142°