What is 75 cm in inches?

Answer:

200 * 25/100 --> 25% of 200

200 * 15/100 --> 15% of 200

100 * 35/100 --> 35% of 100

Step-by-step explanation:

Percentages are always out of 100 ( e.g 60% is equivalent to 60/100) and whole numbers have a denominator of 1 meaning you could simply solve this sort of problem if you set it up right.

For example) 25% of 200

25/ 100  *  200/1

25 * 200 is 5000 and 100 * 1 is 100

So the answer would be 5000/100 (which you would simplify to get the right answer but that's just an example)

Hope you have a great day :)

Answer:

DB = approximately 16

Step-by-step explanation:

DEC is a right triangle => DC=10. Because all four sides are equal in a rhombus, then AD=AB=10. Then, because angle BAD is 53*2=106 degrees, we can use cosines. DB=sqrt(10^2+10^2-2*10*10cos(106deg))=15.9727102009.

The values of side lengths d and b in the triangles are d = 2.3 units and b = 8.5 units

Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.

TRIANGLE 1

sin 60° = 2/d    (Sine = opposite / hypotenuse)

0.8660 = 2/d

d = 2/0.8660

d = 2.3 units

TRIANGLE 2

sin 45° = 6/b    (Sine = opposite / hypotenuse)

0.7071 = 6/b

b = 6/0.7071

b = 8.5 units

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The total distance that she sprint on day 21 is option (c) 180 yards

To solve the problem, we need to use the explicit formula for an arithmetic sequence, which is:

an = a1 + (n - 1) × d

where:

an is the nth term of the sequence

a1 is the first term of the sequence

n is the number of the term we want to find

d is the common difference between consecutive terms

To find out how far Marika sprints on day 21, we can substitute n = 21 into the explicit formula:

an = 100 + (n - 1) × 4

a21 = 100 + (21 - 1) × 4

a21 = 100 + 20 × 4

a21 = 100 + 80

a21 = 180 yards

Therefore, the correction option is (c) 180 yards

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The statements that are true about object-oriented analysis are: b) Control classes receive or handle system events, c) encapsulate behavior of use case, d) implement the controller pattern.

Object-oriented analysis and design (OOAD) is a technical method for analyzing and planning an application, system, or business using object-oriented programming and visual modeling to direct stakeholder communication and product quality throughout the software development process.

Modern software engineering practices typically involve iterative, incremental OOAD. Analysis models for OOA and design models for OOD are the byproducts of OOAD activities, respectively. The goal is for these to continuously improve and change, guided by important factors like risks and business value.

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Note that the full question is:

Which statements are true about control classes in object-oriented analysis? Select all that apply.

a) Control classes manage data structures.

b) Control classes receive or handle system events.

c) Control classes encapsulate behavior of use case.

d) Control classes implement the controller pattern.

Answer: 4.5

Step-by-step explanation:

Answer:

.55b = 30

Step-by-step explanation:

55% is .55

You have .55 of b = 30

.55b=30

Answer:a

Step-by-step explanation:

Answer:

I would assume that 100 would be 100 minutes in the air, if -100 represents 100 minutes before take-off.

Step-by-step explanation:

Molar mass, or the mass of one mole of a material, is used to convert grams to moles.

It is possible to translate between grams into moles of material using molar mass, which is commonly given in grams per mole.

Divide the substance's mass in grams by its molar mass in grams per mole to convert grams to moles. This provides you with the substance's molecular weight.

For instance, you must first establish the molar mass of sodium chloride (NaCl), which is roughly 58.44 grams per mole, in order to convert 50 grams of NaCl to moles. Thereafter, you may apply the subsequent equation:

gram mass divided by molar mass equals one mole (in grams per mole)

Mole = 50 g / 58.44 g/mol = 0.856 mol 

Hence, 0.856 moles of sodium chloride are equal to 50 grams of sodium chloride. Applications for this conversion may be found in chemistry, physics, and engineering.

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The solution is, Ian walk in 4 1/2 days 81/4 = 20.25 miles.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

given that,

Ian walks 4 1/2 miles every day

i.e. in 1 day walks = 9/2 mile

so, Ian walk in 4 1/2 days is.

in 9/2 days walks = 9/2* 9/2 miles

                             =81/4 miles

Hence, The solution is, Ian walk in 4 1/2 days 81/4 = 20.25 miles.

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The value  converted from Celsius to Fahrenheit is given by 39.1 Celsius equals to 102.38 Fahrenheit.

Units  representing the measurement of the temperature in the standard form are Celsius and Fahrenheit .

Formula which relates the Celsius and Fahrenheit are given by

(°C × 9/5) + 32 =°F

Now Substitute the converted value 39.1 Celsius into Fahrenheit we get,

(39.1°C × 9/5) + 32

= ( 351.9 / 5 ) + 32

= ( 70.38 ) + 32

= 102.38°F

Therefore, the converted value from Celsius to Fahrenheit for the given temperature 39.1 Celsius is given by 102.38 Fahrenheit.

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The above question is incomplete , the complete question is:

What is the conversion of 39.1 °C to °F ?

The average rate of change of candle height from time 45 minutes to time 109 minutes is -1 inch per 64 minutes.

The average rate of change is a measure of how quickly one quantity changes relative to another. It is calculated by dividing the difference between two values by the difference in time between those two values. It is a useful metric when trying to understand the speed at which a given quantity is changing over time.

For example, To calculate the average rate of change in the number of students enrolled in a particular school over the course of 5 years. In year 1, the school had 200 students enrolled and in year 5 it had 350 students enrolled. To calculate the average rate of change, one would divide the difference between the two values (150 students) by the difference in time between them (4 years):

Average rate of change = (350-200) / (5-1) = 150 / 4 = 37.5

This means that, on average, the school's enrollment increased by 37.5 students each year.

The table showing the height of a pyramid candle as it burns can be calculated by dividing the change in height (2 inches) by the change in time (64 minutes).

Change in height = 2 inches

Change in time = 64 minutes

Average rate of change = (2 inches) / (64 minutes) = -1 inch per 64 minutes

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To calculate the optimal bundle, you need to find the combination of goods or services that maximizes the consumer's utility while staying within their budget constraint.

The optimal bundle can be found by using the consumer's utility function and their budget constraint. The utility function specifies how much utility the consumer gets from consuming various quantities of the goods or services, while the budget constraint specifies the combinations of goods or services that the consumer can afford given their income and the prices of the goods or services.

To find the optimal bundle, follow these steps:

Write down the consumer's utility function, such as U(x, y) where x and y are the quantities of two goods.

Write down the consumer's budget constraint, such as P_x x + P_y y = I where P_x and P_y are the prices of the goods, I is the consumer's income, and x and y are the quantities of the two goods.

Find the marginal utility of each good by taking the partial derivative of the utility function with respect to each good. For example, the marginal utility of x is given by dU/dx.

Set the marginal utility per dollar spent on each good equal to each other, since the consumer should allocate their spending so that the marginal utility per dollar spent is the same for both goods. That is, set dU/dx / P_x = dU/dy / P_y.

Solve the resulting equations for the quantities of the goods that maximize the consumer's utility subject to their budget constraint.

The resulting combination of goods that solves the optimization problem is the consumer's optimal bundle. It represents the combination of goods that maximizes the consumer's utility given their budget constraint.

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If 0 is not an eigenvalue of a matrix, then it means that the matrix is invertible it implies that the matrix has a unique inverse .

The Eigenvalues are defined as the values which is associated with a square matrix.  

A non-zero vector is said to have an eigenvector of a matrix if when the matrix is multiplied by the vector, the result is a scalar multiple of the vector and that scalar multiple is known as the eigenvalue.

If a matrix has an eigenvalue of 0, it means that there exists a non-zero vector such that when the matrix is multiplied by the vector, the result is the zero vector. Such a matrix is said to be singular or non-invertible.

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(a) The translation in coordinate notation is (x', y') = (x-4, y-3)

(b) The translation as a vector in component is [tex]\vec v = \vec w + ( -4\hat i -3\hat j)[/tex].

The solution has been obtained by using the concept of transformation.

What is transformation?

A transformation is any operation that shifts a polygon or other two-dimensional object on a plane or coordinate system.

The two-dimensional shape that existing before any modification is referred to as the "inverse image" or "pre-image." The image is a representation of the altered shape.

From the given figure, we can see that the quadrilateral W'X'Y'Z' has been formed by translating quadrilateral WXYZ 4 units in x direction and 3 units in y direction.

So, the translation in coordinate notation is (x', y') = (x-4, y-3) and as a vector in component is [tex]\vec v = \vec w + ( -4\hat i -3\hat j)[/tex].

Hence, the required solution has been obtained.

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The missing figure for the question has been attached below.

The product of 2.43 and 13, which is the result of the multiplication operation, is 31.59.

The product of two or more numbers is the result of the multiplication operation performed on the numbers.

Multiplication operation is one of the four basic mathematical operations, including addition, subtraction, and division.

The multiplication operation involves the multiplicand, the multiplier, the multiplication operand (x), the equal symbol (=), and the result, known as the product.

2.43 x 13 = 31.59

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Answer:

8.5 cm

Step-by-step explanation:

A regular pentagon has 5 congruent sides , then

length of each side = perimeter ÷ 5 = 42.5 ÷ 5 = 8.5 cm

There is a 42.3% chance that the Rangers will win a majority of their seven games against the Islanders, assuming their win percentage stays the same.

We can use the binomial distribution to calculate the probability of the Rangers winning a majority of their games against the Islanders, given their win percentage of 55.1%. Let's denote the probability of the Rangers winning a single game against the Islanders as p.

Since the Rangers and Islanders play seven games against each other, the number of games the Rangers win against the Islanders follows a binomial distribution with parameters n = 7 and p = 0.551.

To find the probability that the Rangers win a majority of these seven games, we need to sum the probabilities of all possible outcomes where they win four or more games. We can use the binomial probability formula to calculate each of these individual probabilities and then sum them up:

P(Rangers win 4 or more games) = P(Rangers win 4 games) + P(Rangers win 5 games) + P(Rangers win 6 games) + P(Rangers win 7 games)

[tex]= (7 choose 4) * 0.551^4 * (1 - 0.551)^3 + (7 choose 5) * 0.551 ^ 5 * (1 - 0.551)^2 + (7 choose 6) * 0.551^6 * (1 - 0.551) + (7 choose 7) * 0.551^7[/tex]

Using a binomial calculator or a spreadsheet, we can evaluate this expression and find that:

P(Rangers win a majority of their games against the Islanders) = 0.423

Therefore, there is a 42.3% chance that the Rangers will win a majority of their seven games against the Islanders, assuming their win percentage stays the same.

The Binomial distribution is a discrete probability distribution that describes the probability of obtaining a certain number of successes in a fixed number of independent trials, where each trial can have only two outcomes (e.g., success or failure).

The distribution is defined by two parameters: the number of trials n and the probability of success in each trial p. The distribution gives the probability of obtaining k successes in n trials, where k can range from 0 to n.

The formula for the probability mass function of the Binomial distribution is:

[tex]P(k) = (n choose k) * p^k * (1 - p)^n-k[/tex]

where (n choose k) is the binomial coefficient, which gives the number of ways to choose k items from a set of n items. The formula can be used to calculate the probability of obtaining k successes in n trials, given a fixed probability of success p.

The Binomial distribution is used in many areas of statistics, including quality control, epidemiology, and finance, among others. It is also a fundamental building block for more complex statistical models, such as the Poisson distribution and the normal distribution.

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The absolute value inequality for the graph is given as follows:

|x| < 3.

The absolute value function is defined by the following piecewise rule, depending on the input of the function:

|x| = x, x ≥ 0.

|x| = -x, x < 0.

It measures the distance of a point x to the origin, hence, for example, |-2| = |2| = 0.

From the graph, the shaded region is less than 3 units from the origin, as |-3| = |3| = 3, hence the inequality is defined as follows:

|x| < 3.

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Let's first determine how much Charlie will have in his savings account at the end of the summer if he doesn't withdraw any money. There are 12 weeks in the summer, so he would have:

$500 - $25/week x 12 weeks = $200

So if he withdraws money for more than 0 weeks, he will not have at least $200 in the account at the end of the summer. Therefore, he cannot withdraw any money from the account.

Answer:

12 weeks.

Step-by-step explanation:

Since Charlie has $500, but wants to spend $25 every week, we can set up a problem.

[tex]25[/tex] × [tex]12[/tex] [tex]= 300[/tex]

Thus, he can go 12 weeks and spend $300 while still managing to have $200 left in his account.

Hope it helped!

Answer:

15m3 + 16m5

Step-by-step explanation:

3m3 + 3m3 + 9m3 = 15m3

11m5 + m5 = 16m5

Answer:

-10m^5-3m^3

Step-by-step explanation:

3m^3+3m^3=6m^3-9m^3=-3m^3

-11m^5+m^5=-10m^5

Mover the larger exponent first so -10m^5-3m^3

To graph the function, we can start by plotting a few key points. The first point is (0, 2), since F(0) = cos(0) + 1 = 2. The next point is (1, 1), since F(1) = cos(pi/2) + 1 = 1. We can continue this pattern by adding 1 to the x-value and finding the corresponding y-value.
x F(x)

0 2

1 1

2 0

3 1

4 2

5 1

6 0

Using these points, we can plot the graph of F(x), which looks like a series of peaks and valleys that repeat every 4 units. The peaks occur when cos(pi/2 x) = -1, which happens when pi/2 x = (2n + 1) pi/2, where n is an integer. Solving for x, we get x = 2n + 1. Similarly, the valleys occur when cos(pi/2 x) = 1, which happens when pi/2 x = 2n pi, where n is an integer. Solving for x, we get x = 4n.

What is cosine function ?
The cosine function is a mathematical function that maps the input angle to the output value of the cosine of that angle. It is denoted as cos(x) and is defined for all real values of x.

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As x approaches positive infinity, f(x) approaches negative infinity , Option C is the answer.

What is a Function ?

Function is a mathematical statement that links two variables m a dependent and an independent variable with each other.

It is given that

f(x) = - [tex]\sqrt{x+6}[/tex]

as x----- > ∞  y ---->- ∞

as x -----> - ∞ y----> imaginary axis

Therefore , As x approaches positive infinity, f(x) approaches negative infinity , Option C is the answer.

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The area of the triangular prism is 240 mm²

A triangular prism is a prism with three rectangular faces connecting its two congruent triangular faces. It consists of 5 faces, 6 edges, and vertices.

The sum of the areas of all the triangle's faces is the surface area. By using the net of a prim we can determine the area of the prism as given below. Here we calculate the individual parts of the net to get the total area.

Here we have

A right triangular prism and its net  

The area of the prism can be calculated by calculating the area of the 2 triangles and the areas of 3 rectangles in the given net

As we know Area of rectangle = Length × Width

Area of rectangle parts = [ 3 × 8 ] + [ 3 × 15 ] + [ 17 × 3 ]

= 24 mm² + 45 mm² + 51 mm²

= 120 mm²  

Area of triangle parts = 2 [ 1/2 (15 × 8) ]

= 120 mm²  

Total area of prism = 120 mm² + 120 mm² = 240 mm²

Therefore,

The area of the triangular prism is 240 mm²

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The quadratic equation y = 6x²+ 19x -20 has the same standard form as Ax+By +C = 0.

what is quadratic equation ?

A quadratic polynomial in an independent condition is represented by the expression x ax²+bx+c=0. a 0. Since this equation is of second order, the Fundamental Theory of Algebra requires that it has at best one solution. There can be both simple and complex solutions.

A quadratic equation is just that—quadratic. This indicates that which has at least yet another word that has to be squared. One of the often cited solutions for differential calculus is "ax² + bx + c = 0." where X is an undefined parameter and a, b, and c are mathematical coefficients or constants.

y=(6x-5)(x+4)

y = 6x² - 5x + 24x - 20

y = 6x² + 19x -20

The quadratic equation y = 6x² + 19x -20 has the same standard form as Ax+By +C = 0.

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99% confidence interval for the number of chocolate chips per cookie is

15.4 ± 1.1115

The mean of sample plus and minus the range of that sample constitutes a confidence interval.

Within a specific level of confidence, this is the range of values anticipated to fall within, if the test is repeated.

Number of cookies in the sample n = 55

Mean μ = 15.4

Standard deviation s = 3.2

Confidence = 99%

For 99% confidence interval Z-value = 2.576

Confidence interval

= μ ± Zs/√n

= 15.4 ± 2.576×3.2/√55

= 15.4 ± (8.2432/7.4162)

= 15.4 ± 1.1115

Hence, 15.4 ± 1.1115 is the 99% confidence interval for the number of chocolate chips per cookie.

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Answer:

The correct answer is B. Quantitative data, because the numbers represent numerical values that can be measured and compared.

In the given scenario, the average is an example of a Parameter.

In statistics, a statistic is a numerical value or measure that is calculated from a sample of data. Statistics are used to summarize and describe the characteristics of a sample.

a variable is a symbol or letter that represents a quantity or value that can change or vary. Variables are used to describe relationships between quantities and to represent unknown values or values that can take on different values in different situations.

In statistics, a parameter is a characteristic of a population. A population refers to the entire group of individuals, objects, or events that we want to study. A parameter is a numerical value that describes some aspect of the population, such as its mean, variance, or proportion.

For example, if we want to study the average height of all students at a university, then the population is all the students at the university, and the parameter of interest is the population's mean height

A constant is a value that does not change. In mathematics, constants are often used to represent fixed values or quantities that do not depend on other variables or parameters.  

Here we have

A researcher record the individual change in weight for a small group of 25 freshmen from this college during their first semester.

Then, the researcher calculates the average change in weight during the first semester among these 25 students.  

By the given information,

In the given scenario, the average is an example of a Parameter.        

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The two equations that describe the time x, when 405 cells would be expected are:

To solve for x in the first equation, we can divide both sides by 5 to get:

3^x = 81

Then, we can take the log base 3 of both sides to get:

x = log3(81)

x = 4

To solve for x in the second equation, we can use the properties of logarithms to simplify:

log3(405/5) = log3(81)

x = log3(81)

x = 4

Both equations give us the same answer of x = 4, which means that after 4 hours, there would be 405 cells on the plate if the cell growth is exponential.

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Using angle relationship as reasons, the missing angles are:

1. m∠a = 108°

2. m∠b = 43°

3. m∠c = 114°

4. m∠d = 101°

5. m∠e = 82°

m∠f = 82°

6.  m∠g = 67°

m∠h = 113°

7. m∠i = 127°

m∠j = 53°

8. m∠k = 156°

m∠l = 24°

9. m∠m = 72°

10. m∠n = 86°

11. m∠p = 25°

12. m∠q = m∠r = 61°

The angle relationship that exist between the angles in question will determine how to solve for the missing angle measure in a figure. Some of them are:

1. m∠a = 108°,

Reason: alternate interior angles are congruent.

2. m∠b = 43°,

reason: corresponding angles are congruent.

3. m∠c = 114°,

reason: corresponding angles are congruent.

4. m∠d = 180 - 79

m∠d = 101°

Reason: same-side interior angles theorem (angle relationship)

5. m∠e = 82°,

reason: alternate interior angles are congruent.

m∠f = 82°

Reason: vertical angles are congruent.

6.  m∠g = 67°,

Reason: corresponding angles are congruent.

m∠h = 180 - 67 = 113°,

reason: same-side interior angles are supplementary.

7. m∠i = 127°

reason: corresponding angles are congruent.

m∠j = 180 - 127 = 53°

reason: linear pair angles are supplementary or have a sum of 180 degrees.

8. m∠k = 156°

reason: supplementary angles

m∠l = 24°

reason: alternate exterior angles are congruent

9. m∠m = 72°

reason: alternate exterior angles are congruent

10. m∠n = 180 - 94 = 86°

reason: supplementary angles

11. m∠p = 180 - 155 = 25°

reason: supplementary angles

12. m∠q = m∠r = 180 - 119 = 61°

reason: supplementary angles

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