18. For which of the following conditions will the sum of integers m and n always
be an odd integer?
F. m is an odd integer
G. n is an odd integer
H. m and n are both odd intrgers
OJ. m and n are both even integers
K. m is an odd integer and n is an even integer

Answer:

The answer in intercept form will be

[tex] - 1 \div 3 = 5 \div 3x + c \\ [/tex]

The maximized value of the objective function is 3

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

C = x + y

Subject to

y >= 0

x >= 0

4x + 2y <= 8

2x - y <= 0

When the graphs of these inequalities are plotted (see attachment), we have the following feasible regions

(x, y) = (0, 0) and (1, 2)

This means that

C = 0 + 0 = 0

C = 1 + 2 = 3

3 is greater than 0

Hence, the maximized value is 3

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Approximately 95.45% of the area under the standard normal distribution lies within two standard deviations of the mean.

The standard normal distribution is a normal distribution with a mean of 0 and a standard deviation of 1. This means that 68.27% of the area under the standard normal distribution lies within 1 standard deviation of the mean, and 95.45% of the area under the standard normal distribution lies within 2 standard deviations of the mean.

This is because the standard deviation is a measure of the spread of the data; the larger the standard deviation, the more spread out the data is.

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Answer:

see below

Step-by-step explanation:

7. (4-4). K =0

d+12-8/4+5 = d+12-2+5 =d+15

Histogram II shows the distribution of the students’ balance-scale readings, so the correct answer is option (b).

It is stated that most students are very good at reading the scale. Thus, most of the students will read the scale accurately around the actual weight (i.e., around 1.6 ounces), and very few will read far below or far above the accurate weight of 1.6 ounces.

As a large portion of the understudy score tremendous and ought to have rough equivalent aptitude; in this manner, the histogram ought to be around symmetrical.

Therefore, histogram II (symmetrical distribution) shows the perfect distribution of the students' balance-scale readings.

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The complete question is:

A chemistry class has learned how to read a sensitive high-caliber balance scale (this is not a digital scale). Since most students are very good at reading the scale, the instructor decides it’s time to test their skills. The instructor asks each student to weigh the same 1. 6 ounce bag of Peanut M&Ms, and then records each student’s reading of the balance scale. Which histogram shows the distribution of the students’ balance-scale readings?

(a) Histogram I

(b) Histogram II

(c) Histogram III

(d) Histogram IV

Answer:

13

Step-by-step explanation:

The given relations are:

1) It is a function.

2) not a function.

3)it is a function.

4) not a function.

A function is a relation that maps inputs into outputs, such that each output needs to be mapped into a single input.

1) For example, the first relation each input (left row) is mapped into a single output, thus, it is a function.

2) Here theinput 9 is mapped into two different outputs, then it is not a function.

3) The notation used here is (input, output), so we can see that no input is repeated,so it is a functon.

4) The input 9 is mapped into 3 different outputs, then it is not a function.

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The distance of the translation resulting from the composition of the two reflections Rk and Rh is equal to |1 + 2x|

To determine the distance of the translation resulting from the composition of two reflections Rk and Rh, we can calculate the difference in x-coordinates of the pre-image and image points.

Reflection Rk reflects points over the line x = 2,

So the x-coordinate of a point and its reflection would have a difference of 2 - x, where x is the x-coordinate of the original point.

Reflection Rh reflects points over the line x = -3,

So the x-coordinate of a point and its reflection would have a difference of -3 - x

When we compose the two reflections

The x-coordinate of a point and its image will have a difference of (2 - x) - (-3 - x)

Evaluate

Distance = 5

Hence, the distance is 5 units

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Answer: This problem can be represented by the equation y = mx + b, where y is the total charges, x is the number of days, m is the charge per day, and b is the flat fee.

To find the values of m and b, we can use the given data points to solve for the equation.

For x = 2, y = 8, so 8 = m * 2 + b

For x = 4, y = 13, so 13 = m * 4 + b

For x = 6, y = 18, so 18 = m * 6 + b

We can then use a system of equations to solve for m and b:

m * 2 + b = 8

m * 4 + b = 13

m * 6 + b = 18

Using substitution or elimination methods:

m = 2

b = 2

Therefore, the equation is: y = 2x + 2

This means that the flat fee is $2 and the charge per day is $2.

Step-by-step explanation:

The change in elevation of the car is 0.66mile.

Now, According to the question:

Trigonometric functions are immensely useful when real-life examples form a right triangle. In such cases, sine, cosine, or tangent functions are used based on the given information to determine the unknown value. For example, suppose we are looking at the top of a building and we know the height of the building and our distance from the base of the building, using the tangent function, we can easily calculate the angle made by the line of sight above the ground.

d = 4 miles is the distance covered by the car on the inclined road.

θ = 9.5° is the angle made by the road above the horizontal.

Let:

h be the change in elevation of the car.

Using the sine function, we write:

[tex]sin\theta= \frac{opposite side}{hypontenuse}[/tex]

[tex]sin\theta =\frac{h}{d}[/tex]

h = dsinθ

h = (4 mile)(Sin(9.5°))

h ≈ 0.66 mile

Therefore, the change in elevation of the car is 0.66mile.

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The model with the highest revenue is model D

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

                                                   Model A Model B Model C Model D Model E

Time to manufacture (mins) (t)         15             18         13              20     17

% Of monitors sold  (s)                  75%          73%      84%        95%   81%

Cost per monitor (c)                     $175         $188     $145     $198     $170

The factor works 9 hours for 7 days

So, the total duration per unit time is

D = 9 hours * 7/t

D = 63/t

Convert t to hours

D = 63 * 60/t

D = 3780/t

The total revenue is then calculated as

R = c * D * s

So, we have

Model A = 175 * 3780/15 * 75% = 33075

Model B = 188 * 3780/18 * 73% = 28820

Model C = 145 * 3780/13 * 84% = 35444

Model D = 198 * 3780/20 * 95% = 35551

Model E = 170 * 3780/17 * 81% = 30569

The highest value above is 35551

Hence, the model is model D

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Complete question

Model A Model B Model C Model D Model E

Time to manufacture 15 minutes 18 minutes 13 minutes 20 minutes 17 minutes

% Of monitors sold per total products 75% 73% 84% 95% 81%

Cost per monitor $175 $188 $145 $198 $170

A company manufactures computer monitors. Among the various models are top

products, which bring high revenue.

Assuming the manufacturing lines are running for 9 hours a day for 7 days a week,

which model brings in the highest revenue?

Answer:

x = -1

Step-by-step explanation:
y-0.8x=0.5

5y-2.5-4x

Get y by itself.
y = 1.3

Put 1.3 into the second equation

5(1.3) - 2.5 - 4x
6.5-2.5 - 4x
4 - 4x = 0
Get x by itself
-4x = 4
x = -1

I hope this was able to help you :D

The number of counters Rick has is equal to 12 counters.

The number of counters Tony has is equal to 1:1.5.

The value of p is 1.5.

In order to solve this word problem, we would assign variables to the unknown numbers and then translate the word problem into algebraic equation as follows:

Let R represent the number of counters Rick has.

Let S represent the number of counters Selma has.

Let O represent the number of counters Tony has.

Let T represent total number of counters.

Translating the word problem into an algebraic equation, we have;

S = 2R     .....equation 1.

O = 2R - 6    ......equation 2.

T = R + S + O   ......equation 3.

Substituting equation 1 and equation 2 into equation 3, we have:

T = R + S + O

54 = R + 2R + 2R - 6

54 = 5R - 6

5R = 54 + 6

5R = 60

R = 60/5

R = 12 counters.

For Tony, the number of counters is given by:

O = 2R - 6

O = 2(12) - 6

O = 24 - 6

O = 18 counters.

In ratio form, we have:

O = 1:P

O = 1:(18/12)

O = 1:1.5

The number of counters Rick has is equal to 12 counters.

The number of counters Tony has is equal to 1:1.5.

The value of p is 1.5.

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As 5/10 are Girls in Class And 1/5 of the girls wear glasses So on overall girls wear glasses is 1/10 in the whole class.

The fraction 5/10 is equal to 1/2 of the total and 1/5 of the girls wear glasses so if you multiply 1/2 and 1/5 you get 1/10, To get a total fraction of girls who wear glasses overall will be by multiplying both the fraction. So,

1/5*1/2 = 1/10

Here the answer is produced by multiplying the numerator with the numerator and similarly denominator with the denominator to get the answer of total friction of girls wearing glasses in the whole class.

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The product for (2x+1) and (5-x) is -2x²+9x+5.

A fraction represents a part of a whole.

We have to find the product of (2x+1)(5-x)

We use distributive property to find the product.

2x(5-x)+1(5-x)

10x-2x²+5-x

-2x²+10x-x+5

Add the like terms

-2x²+9x+5

Hence, the product for (2x+1) and (5-x) is -2x²+9x+5.

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The value of distance after calculating are  AB = 4 ft and BC = 16 ft.

What is ratio?

A ratio is a comparison between two numbers or quantities. It is typically expressed as a fraction, with the first number being divided by the second number. Ratios are often used to compare values or to express a portion of a whole.

It is given in the question, that Ladd is rearranging his living room furniture. He wants his couch to sit along the 20-ft wall.

To find the length of AB and BC we need to relate them using the equations.

AB + BC = 20 ft (from the diagram) ----------- (Equation 1)

∵ AB : BC = 1 : 4

⇒ 4AB = BC

Substituting,  BC = 4AB into equation 1.

AB + 4AB = 20 ft

5AB = 20 ft

AB = 4 ft

Plugging AB = 4 ft into equation 1.

4 + BC = 20

BC = 20 ft - 4 ft

BC = 16 ft

Thus, the value of sides AB = 4 ft and BC = 16 ft , and here AB and BC are in ratio 1:4.

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The number of hours for which the cost is the same would be 5 hours.

The cost of renting a snowboard for 5 number of hours would be same as that point i.e. $5

By costs, what do you mean?

Costs are really the monetary value of purchases made for use by a company or other accounting entity of supplies, service, labor, products, equipment, and other items.

The cost of renting a snowboard from the first company is $5 per hour + $50 deposit = $5x + $50.

The cost of renting a snowboard from the second company is $10 per hour + $25 deposit = $10x + $25. To find the number of hours for which the cost is the same, we set the two costs equal to each other and solve for x:

$5x + $50 = $10x + $25

$5x - $10x = $25 - $50

$5x = $25 - $50

$5x = -$25

x = -5

As we will not take cost in negative so it would be 5

So, we can say that the cost is same at any point of time.

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Substitution is a method for solving systems of equations that involves solving for one variable in one equation and then substituting that value into the other equation.

Here's how we can use substitution to solve the system of equations:

5x+y=9

10x−7y=−18

Solve one equation for one variable, for example:

y = 9 - 5x

Substitute this expression of y into the other equation:

10x - 7(9 - 5x) = -18

Solve the equation resulting from the substitution

10x - 63 + 35x = -18

45x = 45

x = 1

Substitute this value of x back into one of the original equations to find the value of y.

5(1) + y = 9

y = 4

So the solution is (x,y) = (1,4)

You can check this solution by substituting it back into both original equations.

The length of the arc of the given circle with radius 10 cm and an angle of 2.5 radians subtended by an arc of a circle is equal to 25 cm.

Let 'y' represents the length of the arc of the given circle.

Radius 'r' of the given circle is equal to 10 cm

Angle 'α'  subtended by an arc of a circle is equal to 2.5 radians.

length of the arc = Angle subtended by an arc × Radius of the circle

⇒ y = rα

⇒ y = 10 × 2.5

⇒ y = 25 cm

Therefore, the length of the arc of a circle for the given radius 10cm and subtended angle 2.5 radians is equal to 25 cm.

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Statements are False: 1. interchanging rows changes determinant. 2. determinant zero not implies specific rows. 3. determinant not product of diagonal entries. 4. determinant is scalar not matrix.

What is matrix ?

A matrix is a rectangular array of numbers or other mathematical objects, typically arranged in rows and columns. Matrices are often denoted using capital letters, such as A, B, and C. Each element of a matrix is identified by its row and column indices,

1) False, If two row interchanges are made in succession, the determinant of the new matrix is the negative of the determinant of the original matrix.

2) False, If the determinant of a matrix is zero, it does not necessarily mean that two rows or two columns are the same or a row or column is zero, it only means that the matrix is singular, i.e. non-invertible and it also can mean that the matrix is linearly dependent.

3) False, The determinant of a matrix is not always equal to the product of the diagonal entries, it is a scalar value calculated through a specific method called matrix expansion which is based on the entries of the matrix and it depends on the size of the matrix.

4) False, The determinant of a matrix is a scalar value, it cannot be equal to another matrix.

Statements are False: 1. interchanging rows changes determinant. 2. determinant zero not implies specific rows. 3. determinant not product of diagonal entries. 4. determinant is scalar not matrix.

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The angular momentum of the the ball is 4.16kgrad/sec

Angular momentum is the rotational analog of linear momentum. It is an important physical quantity because it is a conserved quantity. This means that the total angular momentum of a closed system remains constant. Angular momentum has both a direction and a magnitude, and both are conserved. It is measure d in kgrad/sec

angular momentum = mass × angular velocity

mass = 0.18kg

angular velocity = 5.2 rad/s

therefore angular momentum = 0.18× 5.2

= 4.16 kg rad/s

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The rate of change for the linear function is 2.

The initial value for the linear function is 3.

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The points on the coordinate plane:

(0, 3) and (2, 7)

Now,

The equation of the line.

y = mx + c

Slope = m

m = (7 - 3) / (2 - 0)

m = 4/2

m = 2

Now,

(0, 3) = (x, y)

3 = 2 x 0 + c

3 = 0 + c

c = 3

The y-intercept is 3.

Thus,

The rate of change is 2.

The initial value is 3.

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The number of ways to answer the questions is given as follows:

15,625.

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 this problem, there are six questions, each with five possible options, hence the number of ways to answer the questions is calculated as follows:

5^6 = 15,625 ways.

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The statement that is most likely to be true in the question that we have here is that : The student will be equally likely to join the Zoology Club or Robotics Club because P(Robotics) = P(Zoology). Option 2

Simply put, probability measures how probable something is to occur. We can discuss the probabilities of various outcomes, or how likely they are, if we are unclear of how an event will turn out. Statistics is the study of occurrences subject to probability.

In the question the probability of robotics is 0.2 while the probability of zoology club is 0.2 as well.

They have equal probability

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Answer: Answer B

Step-by-step explanation:

The probability that two randomly generated strings of length 9 in the DNA alphabet is 729.

We have to find the probability that two randomly generated strings of length 9 in the DNA alphabet (a, c, g, t) are identical.

Probabilities are based on occurrences, and events can result from one or more observations or experiment results.

The total number of alphabet in word DNA is 3.

So, the probability that two randomly generated strings of length 9 in the DNA alphabet = 9 × 9 × 9

The probability that two randomly generated strings of length 9 in the DNA alphabet = 729

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Answer:

Step-by-step explanation:

a)  A(11) > M(11)

       45 > 40

Go to x axis where t=11 then go straight up to find the y values (temp.) on each line

b)  Look for where the lines intersect.  This is where t≈47, t≈60

c)  M(t) < A(t) where t=2, t=11

Look for where the Minn. line (dashed orange) is BELOW the Aspen line (solid blue)

Answer: Because 2 places to the right of the the decimal.

Step-by-step explanation:

According to the graph, the system of equations x + 4y = 6 and y = 2 x -3 has one solution that is (2,1)

In math the term called graph is defined as a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

Here we know that the following equation are known:

=> x + 4y = 6

=> y = 2x - 3

And here we need to find the number of solution for the equations.

Here we have to plot the equation on the graph then we get the graph like the following.

While we looking into the graph, we have identified that the intersection point in the graph is (2,1) and there is no other intersecting point.

Therefore, option (a) is correct.

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The statement using absolute value notation will be x - 78 ≤ 22.

The student will pass the test which scores 22 points for the number 78

Absolute values are any digit's value without taking the sign into an account. Therefore, all negative numbers will be regarded as positive for absolute value. The absolute value of -5, for instance, will be 5, whereas that of -7, will be 7.

In essence, the absolute value calculates the distance from zero. Putting an absolute value on something does not imply that they are the same number but that they are the same distance from 0.

Le the score of student be = x

Forming the absolute value notation -

This can be expressed as,

x - 78 ≤ 22.

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