Hamid is playing a trivia game with multiple choice questions. Each question has 2 22 correct answers among 5 55 answer choices. Hamid has no idea what the answers to a certain question are, so he needs to choose two different answers at random. What is the probability that hamid guesses both answers correctly? round your answer to two decimal places.

The solutions for given equation are x = 4 and y = 6

The algebraic technique for resolving many linear equations at once is called the substitution method. As the name implies, this approach involves substituting a variable's value from one equation into another.

Here we have

- 5x - 2y = - 40 --- (1)

 y = 2x + 2  ---- (2)

To solve (1) and (2)

Substitute (2) i.e y value in (1)

=> - 5x - 2(2x+2) = - 40

=> - 5x - 4x - 4 = - 40

=> -9x - 4 = - 40

=> - 9x = - 36

=>  x = 4  

Now substitute x = 4 in (2)

=>  y = 2(2) + 2  

=>  y = 6

Therefore,

The solutions for given equation are x = 4 and y = 6

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Yes, the equation has real roots. By completing the square, we can make the equation in the form of ax^2+bx+c=0. Then, we can use the quadratic formula to solve for x. The discriminant of this equation is b^2-4ac = 10-60 = -50, which is negative, so the equation has two real roots.

Yes, the equation 3x^2+2√5x has real roots. By expanding the equation, we get 3x^2+2x√5=0. We can use the quadratic formula to solve for x. First, we need to make the equation in the form of ax^2+bx+c=0. To do this, we complete the square. We divide both sides of the equation by 3, giving us x^2+2/3*√5x=0. Then, we add (2/3*√5/2)^2 to both sides, giving us x^2+2/3*√5x+(2/3*√5/2)^2= (2/3*√5/2)^2. Simplifying, we get x^2+2/3*√5x+5/12=0. This is now in the form of ax^2+bx+c=0, with a=1, b=2/3*√5, and c=5/12.

Now, we can use the quadratic formula to solve for x

x = [-2/3*√5 + √(-50/3)]/2

x = [-2/3*√5 - √(-50/3)]/2

Therefore, the two real roots of the equation are

x = [-2/3*√5 + √(-50/3)]/2 and

x = [-2/3*√5 - √(-50/3)]/2.

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Answer: C

Step-by-step explanation:

(-3x + 9i) (x + 3i)

-3x^2 - 9ix + 9ix - 27

-3x^2 - 27

So, the answer is C

Multiplicity is a mathematical concept related to the roots of a polynomial equation.

It is defined as the number of times a given root is repeated in the polynomial equation.

The formula for calculating the multiplicity of a root is :

Multiplicity = n-(degree of the polynomial equation)

where n is the order of the root and the degree of the polynomial equation is the highest exponent in the equation.

For example, if the polynomial equation is 3x^2 + 4x + 2 = 0 and the root is 2, then the multiplicity of the root is calculated as follows:

Multiplicity = n - (degree of the polynomial equation)

Multiplicity = 2 - 2

Multiplicity = 0

This means that the root 2 is not repeated in the polynomial equation and therefore has a multiplicity of 0.

In another example, if the polynomial equation is 4x^3 + x^2 + 6x + 12 = 0 and the root is 2, then the multiplicity of the root is calculated as follows:

Multiplicity = n - (degree of the polynomial equation)

Multiplicity = 2 - 3

Multiplicity = -1

This means that the root 2 is repeated in the polynomial equation and therefore has a multiplicity of -1.

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If A and B are independent events with given probabilities P(A) and P(B), then the probability of A intersecting B (P(A ∩ B)) is equal to the product of their individual probabilities. For example, if P(A) = 0.05 and P(B) = 0.65, then P(A ∩ B) = 0.0325.

The probability of two events A and B occurring together, P(A ∩ B), can be calculated by multiplying the individual probabilities of each event, P(A) and P(B). In this case,

P(A) = 0.4 and P(B) = 0.6, so P(A ∩ B) = 0.4 * 0.6 = 0.24

.The probability of event A occurring given that event B has already occurred, P(A | B), is equal to the probability of both events occurring together, P(A ∩ B), divided by the probability of event B occurring, P(B). In this case,

P(A ∩ B) = 0.24 and P(B) = 0.65, so P(A | B) = 0.24 / 0.65 = 0.0375

which can be rounded to 0.0325.These probabilities can be used to estimate the likelihood of certain events occurring together or given certain conditions. In this case, the probability of events A and B occurring together is 0.24 and the probability of event A occurring given that event B has already occurred is 0.0325.

A. P(A ∩ B) = P(A) * P(B)

= 0.4 * 0.6

= 0.24

B. P(A | B) = P(A ∩ B) / P(B)

= 0.24 / 0.65

= 0.0375

= 0.0325

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The relationship between the volume of the rectangular pyramid and the volume of the rectangular prism with the same base and height is given by : Volume of the rectangular pyramid = (1/3) of the volume of the rectangular prism.

As given in the question,

Formula need to use for the calculation of the volume of the rectangular pyramid and prism is  :

Volume of the rectangular pyramid

= (1/3) × ( rectangular base area) × height

Volume of the prism = ( rectangular base area ) × height

If the base and height of the rectangular pyramid and rectangular prism is same then,

Volume of the rectangular pyramid

= ( one - third ) × Volume of the rectangular prism

Therefore, the relationship representing the volume of the rectangular pyramid is and prism with same base and height as volume of pyramid is one third the volume of the prism.

The above question is incomplete , the complete question is:

What is the relationship between the volume of rectangular prism and pyramid which have the same height and base?

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The four parts of a line graph is Tittle, Legend, Data, Y-axis, X-axis and Line.

A line graph—also called a line plot or a line chart—is a graph that makes use of lines to connect individual data points. A line graph presentations quantitative values over a distinctive time of language. In finance, line graphs are normally used to depict the ancient rate action of an asset or security. Line graphs may be compared with different visualizations of facts which includes bar charts, pie charts, and (in buying and selling) candlestick charts, amongst others.

Line graphs might also vary relying non-obligatory capabilities or formatting. the very best-excellent, easiest to understand line graphs have the subsequent characteristics:

Line graphs may additionally have a name above the graph to succinctly provide an explanation for what the graph is depicting except we provide a user with written context, the user will regularly depend on the title to better understand what information is being pulled in. The title can also mainly name out a time frame or limits to the information.

The legend explains what every based variable is and the way to distinguish extraordinary units of data. In the instance above, every dependent variable is marked with its own coloration. The field that explains what each coloration method is the legend.

Each object of facts on a line graph is a reference to a distinctive supply that ties the structured variable to an unbiased variable. that is the records on our graph; it is the item that creates the dots that get linked to form the lines to our chart. There may be a couple of units of statistics blended into a single graph. To make sure statistics is blanketed and correct, companies might also have precise information integrity analyst or similar positions to screen database hobby.

The x-axis is the set of records that runs along the horizontal, flat component at the bottom of the road graph. In most line graphs, the x-axis could be related to time, whether it's far the distinctive months in a year or the wide variety of weeks which have exceeded considering that a product launch.

The y-axis is the set of data that runs alongside the vertical, left-aspect of the graph. some iterations of line graphs have this set of data on the proper. In any case, these numbers count number the items being measured. The graph might also begin at 0, even though there are instances wherein it makes more experience to begin at a higher variety.

Finally, the line. the road connects all statistics points within a single structured variable. This line's motion shows the growth and reduce of information throughout time. it may also easily be as compared towards different strains so long as all facts units are being measured over similar periods of time. Although overly simplified, this line can speak to management what actions need to be taken to enhance operations or strategic planning.

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Answer:

2a. Scale factor is 2

2b.  Scale factor is 3

Step-by-step explanation:

2a.

We see that the smaller figure to get from F' to G', it is 2 squares, and we see the larger figure to get from F to G, it is four squares, so the scale factor is 2.

2b.

We see that to get from A' to C', it is 2 squares, and we see the larger figure to get From A to C, it is 6 squares, so the scale factor is 3

f(x) = 2[tex]x^{3}[/tex] + 4[tex]x^{2}[/tex] - 22x -24 will be the equation.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign. For example, 3x – 5 = 16 is an equation. Solving this equation, we get the value of the variable x as x = 7.

The equation will be 2(x-3)(x+4)(x+1) since the function f(x) has roots of 3, -4, and -1 and a leading coefficient of 2.

so 2(x-3)(x+4)(x+1) will be the equation

That is 2(x-3)([tex]x^{2}[/tex] +5x + 4)

2([tex]x^{3}[/tex] + 2[tex]x^{2}[/tex] - 11x -12)

f(x) =2[tex]x^{3}[/tex] + 4[tex]x^{2}[/tex] - 22x -24

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The number of different ways for each case is given as follows:

a) 1,024 ways.

b) 1,043,456 ways.

c) 1,073,739,264 ways.

The Fundamental Counting Theorem states that if there are n independent trials, each with [tex]n_1, n_2, \cdots, n_n[/tex] possible results, the total number of outcomes is calculated by the multiplication of the number of outcomes for each trial as presented as follows:

[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]

For item a, we have that for each of the 10 toppings, there are 2 options, insert or not, hence the total number of outcomes is of:

2^10 = 1024 ways.

For item b, we have that:

Hence the number of ways is given as follows:

1024 x 1024 - 10 x 512 = 1,043,456

For item c, we have that:

Hence the number of ways is given as follows:

1024 x 1024 x 1024 - 10 x 256 = 1,073,739,264

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You must have held Social Security-covered employment and have a medical condition that satisfies Social Security's rigid definition of disability in order to be eligible for SSS disability benefits.

People who are unable to work for a year or more due to a handicap typically receive monthly payments. Benefits often persist until you can resume regular employment. Additionally, there are a number of unique regulations, referred to as work incentives, that offer ongoing benefits and health insurance to support your move back to employment.

When you reach full retirement age while receiving SSDI payments, your disability benefits will automatically transition to retirement benefits, but the amount will not change.

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For at least 75% of the data, the spread will be within two standard deviations of the mean.

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers.

While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.

Generally speaking, the spread will be within two standard deviations of the mean for at least 75% of the data.

The data will be within three standard deviations of the mean for at least 89% of the time.

Data that deviates more than two standard deviations from the mean are deemed "unusual."

Therefore, for at least 75% of the data, the spread will be within two standard deviations of the mean.

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The last statement the ratio of smoothies size to mangos used for Kim is same as the ratio of smoothie size to mangos used for Angela is correct.

What is ratio?

A ratio in mathematics demonstrates how many times one number is present in another. For instance, if a bowl of fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six. The ratio of oranges to the total amount of fruit is 8:14, and the ratio of lemons to oranges is 6:8.

Given:

Kim and her friends watched the server making smoothies.

The given table shows the number of mangos that were used for each of the different size of smoothies that the friends ordered.

From the given statements the last statement 'the ratio of smoothies size to mangos used for Kim is same as the ratio of smoothie size to mangos used for Angela.'

Because,

The ratio of smoothies size to mangos used for Kim is, 21/3 = 7 and

The ratio of smoothie size to mangos used for Angela is 28/4 = 7.

Both the ratios are same.

Hence, the last statement the ratio of smoothies size to mangos used for Kim is same as the ratio of smoothie size to mangos used for Angela is correct.

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A discontinuous function can be solved by analyzing the behavior of the function and its points of discontinuity. This can be done by finding the limits of the function at each point and then using the appropriate algebraic techniques to solve the equation.

Discontinuous functions are those that have gaps or sharp discontinuities in their graphs. In order to solve a discontinuous function, you must start by analyzing the behavior of the function and its points of discontinuity. This can be done by finding the limits of the function at each point and then using the appropriate algebraic techniques to solve the equation. This can involve factoring, manipulating equations, and other techniques to find the solution. Once the equation is identified, it can then be graphed to see the behavior of the function between the points of discontinuity. If necessary, the equation can then be further manipulated to satisfy the conditions of the discontinuous points. By approaching the problem in this manner, a discontinuous function can be effectively solved.

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The value of k in the quadratic equation is k = 0 or k = 8

What is Quadratic Equation?

A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

where ( b² - 4ac ) is the discriminant

when ( b² - 4ac ) is positive, we get two real solutions

when discriminant is zero we get just one real solution (both answers are the same)

when discriminant is negative we get a pair of complex solutions

Given data ,

Let the quadratic equation be represented as A

Now , the value of A is

2x² + kx + k = 0   be equation (1)

And , the roots of the equation are equal

So , when the discriminant is zero we get just one real solution

The roots of the quadratic equations are

x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )

( b² - 4ac ) = 0

Substituting the values in the equation , we get

k² - 4 ( 2 ) ( k ) = 0

On simplifying the equation , we get

k² - 8k = 0

Adding 8k on both sides of the equation , we get

k² = 8k

So , when k = 0 , the equation satisfies

And ,

k = 8

Therefore , the value of k are 0 and 8

Hence , the value of k in the equation is 0 or 8

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The 3 consecutive odd numbers whose sum will be 51 are  16, 17, 18.

What are consecutive numbers ?

Numbers that follow each other continuously in the order from smallest to largest are called consecutive numbers. For example: 1, 2, 3, 4, 5, 6, and so on are consecutive numbers.

Since, we know that any odd number is always of the form (2k +1). We express an odd number in this form because we know that an odd number is not divisible by 2.

Let the numbers be x, x+1 and x+2.

Then the sum is : x + x+1+ x+2 = 3x + 3

3x + 3 = 51 (given)

3x = 51 – 3 = 48

x = 48 ÷ 3

x = 16

∴

Hence , the 3 consecutive odd numbers whose sum will be 51 are  16, 17, 18.

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To find the interest rate, we can use the formula for simple interest:

I = P * r * t

Where I is the interest, P is the principal (the amount of money in the account), r is the interest rate, and t is the time (in years).

We know that I = $480, P = $2,000, and t = 2 years.

Plugging these values into the formula, we get:

$480 = $2,000 * r * 2

Dividing both sides by $2,000 * 2, we get:

r = $480 / $2,000 * 2

r = 0.12

So, the interest rate is 0.12, or 12%.

The value of the polynomial 5x- 4x²+3 at x=-1 is -6 by using the substitution method.

Given that,

The polynomial is 5x- 4x²+3

We have to find the value of the polynomial when x=-1.

We know that,

A polynomial is an algebraic expression whose exponents are all whole numbers. There must be non-negative integer variable exponents in all polynomials.

Take the polynomial P(x) = 5x- 4x²+3

P(x) = 5x- 4x²+3

So, we take x=−1,

P(−1)=5×(−1)−4×(−1)²+3

P(−1)=−5−4+3

P(−1)=−6

Therefore, The value of the polynomial 5x- 4x²+3 at x=-1 is -6 by using the substitution method.

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The Surface Area of Pyramid is 104 cm².

Simply calculating the areas of each face in a figure is surface area. It is considerably simpler for us to calculate because the amount is supplied to us as a net of.

So, Area of square base= (side²)

= 8²

= 64 cm²

and, Area of one triangular face

= (1/2 x b x h)

=1/2 x 8 x 5

= 20 cm²

Now, Multiply by 4 as we have 4 triangular faces

= 20 cm² x 4

= 80 cm²

Then, Surface Area of Pyramid is

= 64 cm² + 40 cm²

= 104 cm²

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The value of the percent increase in the value of W is 50%.

How can I determine the ratio between two quantities?

When the ratio of each of the two quantities' values is equal, the two quantities are said to be proportionate. It comes in two varieties: direct and indirect. The ratio is more than one for direct relations whereas it is less than one for indirect relations.

The relationship provided in the issue can be expressed as,

W ∝ X

X now has a new value when it is increased by 50%:

X + 50% × X

⇒ X + 50/100 × X = 3X/2

Assume that X and W now have values of X1 and W1, respectively.

Consequently, they are related in the following ways:

W ∝ X

⇒ 3/2W ∝ 3/2X

⇒ 3/2W ∝ X₁

W's value is increased by 3/2W - W, which equals 1/2W.

The percentage growth

⇒ (1/2W)/W × 100%  = 50%

Hence, the percent increase is obtained as 50%.

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Answer:

Below

Step-by-step explanation:

Domain is the x values a graph can have

   this one goes from 7 to 11   inclusive ( solid dots at each end)

7<= x <= 11  

On observing the provided question, we can say that the the provided equation f(x) = [tex]x^3[/tex] is the basic cubic function.

An statement, rule, or law in mathematics that specifies the connection between an independent variable and a dependent variable (the dependent variable). A relationship between a group of inputs and one output each is referred to as a function. In plain English, a function is an association between inputs in which each input is connected to precisely one output. Y=X2 is an illustration of this. You only receive one output for y if you enter anything for x. The fact that x is the input value leads us to argue that y is a function of x.

basic cubic function is =  [tex]f(x)=x^3[/tex]

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The heights of the two legs (a and b) of a right triangle are equal. Ha = b and hb = an as a result. The height of the hypotenuse is hc. The intersection of a triangle's three altitudes occurs at the orthocenter H, which for a right triangle is located on the vertex C of the right angle.

A line segment passing through a triangle's vertex and running perpendicular to the line containing the base is the triangle's height in geometry.

The extended base of the altitude is the name given to this line that contains the opposing side.

The foot of the altitude is the point at which the extended base and the height converge.

Each leg (a and b) of a right triangle has the same altitude as its opposite leg.

As a result, ha = b and hb = a.

The hypotenuse rises to an altitude of hc.

The orthocenter H, which for a right triangle lies on the vertex C of the right angle, is where the three altitudes of a triangle intersect.

Therefore, the heights of the two legs (a and b) of a right triangle are equal. Ha = b and hb = an as a result. The height of the hypotenuse is hc. The intersection of a triangle's three altitudes occurs at the orthocenter H, which for a right triangle is located on the vertex C of the right angle.

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The phrase "number of values for which a certain condition holds" is referred to as multiplicity. The phrase, for instance, can be used to describe the magnitude of the totient valence function or the frequency with which a given polynomial equation has a root at a specific location.

Let z_0 be a root of a function f, and let n be the least positive integer n such that f^((n))(z_0)!=0. Then the power series of f about z_0 begins with the nth term,

f(z)=sum_(j=n)^infty1/(j!)(partial^jf)/(partialz^j)|_(z=z_0)(z-z_0)^j,

and f is said to have a root of multiplicity (or "order") n. If n=1, the root is called a simple root '

The multiplicity of a member of a multiset in mathematics is the number of times the member appears in the multiset. The multiplicity of a root, for instance, is how many times a given polynomial has a root at a particular point.

It's crucial to understand the concept of multiplicity in order to correctly count without mentioning exceptions (for example, double roots counted twice). Thus, "counted with multiplicity" is used.

This can be highlighted by counting the number of different elements, as in "the number of separate roots," if multiplicity is disregarded. However, multiplicity is always taken into account when a set (as opposed to a multiset) is established, therefore the word "different" is not necessary.

Hence ,Multiplicity means the quality or state of being multiple or various. and

the number of components in a system (such as a multiplet or a group of energy levels)

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Let z_0 be a root of a function f, and let n be the least positive integer n such that f^((n))(z_0)!=0. Then the power series of f about z_0 begins with the nth term,

f(z)=sum_(j=n)^infty1/(j!)(partial^jf)/(partialz^j)|_(z=z_0)(z-z_0)^j,

and f is said to have a root of multiplicity (or "order") n. If n=1, the root is called a simple root '

The multiplicity of a member of a multiset in mathematics is the number of times the member appears in the multiset. The multiplicity of a root, for instance, is how many times a given polynomial has a root at a particular point.

Answer: it is p

Step-by-step explanation:

4p-3p

Subtract 3p from 4p

=p

Brainliest pls

Answer:

p

Step-by-step explanation:

4p+3q-3p-3q

rearrange terms

4p-3p+3q-3q

combine like terms

1p+0q

simplify

p

hopes this helps

The number of oranges needed to make 3quarts of oranges juice is 20oranges

A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 4 girls you could write the ratio as: 1 : 4(for every one boy there are 3 girls). This also means that for 2 boys there will be 6 girls.

Similarly 5 oranges is needed to make 3 cups of juice. it can also be put in like 5:3

to make 3quarts,

2cups = 1pint

2pints = 1quart

therefore 4 cups = 1quart

3 quart = 3×4=12cups

if 3 cups is from 5 oranges

then 1 cup = 5/3

12cups = 5/3× 12= 20 oranges

Therefore 20oranges will be needed to make 12 cups of juice

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Yes, a function will have more than one inverse.

Given,

Function;

A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics and the sciences, functions are fundamental for constructing physical relationships.

Inverse function;

A function that can change into another function is referred to as being inverse or anti. In other words, the inverse of any function "f" will take y to x if it takes x to y in the first place. The inverse function is indicated by f-1 or F-1 if the function is denoted by f or F.

Here,

A function may have more than one inverse, or many functions have inverses that are not functions.

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It's the first math course they take where they have to deal with variables, complex ideas, and creative problem solving, algebra can be intimidating for many students.

We employ integers with definite or fixed values in algebra, such as 2, 9, 0.068, etc. Numerous sub-branches of algebra exist, including introductory algebra, advanced algebra, abstract algebra, linear algebra, and commutative algebra.

here

Because it's the first math course they take where they have to deal with variables, complex ideas, and creative problem solving, algebra can be intimidating for many students .

Additionally, there is sometimes insufficient effort made in the classroom to relate algebra to students' daily lives and explain why it is important for them to grasp.

They have to deal with variables, complex ideas, and creative problem solving, algebra can be intimidating for many students .

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A school cafeteria wants to find out what combinations of food and beverage students are ordering.  the probability that a student ordered a hamburger and a Slurpee is 19 over 137.Option D

Generally, To find the probability that a student ordered a hamburger and a Slurpee, we need to divide the number of students who ordered a hamburger and a Slurpee by the total number of students.

From the table, we can see that 19 students ordered a hamburger and a Slurpee.

There were a total of 38 + 12 + 14 + 18 + 28 + 7 + 23 = 137 students in the cafeteria.

Therefore, the probability that a student ordered a hamburger and a Slurpee is 19/137, or about 0.14.

Therefore, the correct answer is d) 19 over 137.

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