hi! i’m struggling with this and don’t know where to start! need work shown and a step by step explanation for 1 and 2 would be helpful!! thanks x

9,600 kilobytes have been downloaded so far.

Kilobytes (KB) are a unit of digital information storage that is commonly used to measure the size of computer files and data. One kilobyte is equivalent to 1,000 bytes, or 2^10 (1024) bytes. Kilobytes are often used to describe small files and data sets, such as text documents, images, and audio files.

Kilobytes are part of a larger hierarchy of units used to measure digital information storage, which includes larger units such as megabytes (MB), gigabytes (GB), and terabytes (TB). In this hierarchy, each unit is 1,000 times larger than the previous one. For example, 1 MB is equivalent to 1,000 KB, 1 GB is equivalent to 1,000 MB, and so on.

Kilobytes are used in a variety of contexts, including computer storage, data transfer rates, and internet bandwidth. For example, the size of a typical email message might be measured in kilobytes, and the download speed of a file from the internet might be measured in kilobits per second (kbps).

Despite their relatively small size compared to larger units like gigabytes and terabytes, kilobytes remain an important unit of measurement in the digital world, as many files and data sets are still relatively small and easily manageable within this size range.

30% of 32,000 kilobytes can be found by multiplying 0.3 and 32,000:

0.3 × 32,000 = 9,600

So, 9,600 kilobytes have been downloaded so far.

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The total number of students in the vans and buses is 484

Algebra is a branch of mathematics that deals with the study of mathematical symbols and the rules for manipulating these symbols to solve equations and understand the relationships between variables. In algebra, letters or symbols are used to represent unknown values or variables, and equations are used to describe the relationships between these variables.

Algebraic expressions and equations involve mathematical operations such as addition, subtraction, multiplication, and division, as well as more advanced operations such as exponentiation, logarithms, and trigonometric functions. These operations can be used to simplify expressions, solve equations, and analyze mathematical relationships.

Elementary algebra, which is concerned with the basic concepts and techniques of algebra, such as simplifying expressions, solving equations, and graphing functions.

Abstract algebra, which is concerned with the study of algebraic structures, such as groups, rings, and fields.

Linear algebra, which is concerned with the study of vector spaces and linear transformations.

Algebraic geometry, which is concerned with the study of geometric objects defined by algebraic equations.

Algebra has many practical applications in various fields, including science, engineering, economics, and computer science. It is used to model and analyze real-world problems, such as population growth, interest rates, and inventory management. It is also used in cryptography, where it is used to design secure encryption and decryption algorithms.

Let's start by using algebra to represent the information given in the problem.

Let x be the number of students in each van and each bus. Since every van had the same number of students as every bus, we can say that the total number of students in the vans and buses is:

10(x) + 12(x) = 256

Simplifying, we get:

22x = 256

Dividing both sides by 22, we get:

x = 11.6363636...

Since we can't have a fraction of a student, we need to round x to the nearest whole number. We have two options: rounding up to 12 or rounding down to 11.

If we round x up to 12, then each van and each bus had 12 students. The total number of students in the vans and buses is:

10(12) + 12(12) = 240

This is not equal to the given total of 256, so rounding up to 12 is not a valid solution.

If we round x down to 11, then each van and each bus had 11 students. The total number of students in the vans and buses is:

10(11) + 12(11) = 220 + 264 = 484

This is not equal to the given total of 256, so rounding down to 11 is not a valid solution either.

Therefore, there is no whole number solution for the number of students in each van and each bus. We can interpret this to mean that there was not an equal number of students in each van and bus. Alternatively, we can interpret this to mean that there was an error in the information given in the problem.

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Answer:

11, 7, 3, -1, -5, -9

Step-by-step explanation:

To find the next two terms in the sequence 11, 7, 3, -1, we need to determine the pattern or rule that generates the sequence.

In this case, we can see that each term is decreasing by 4, so the next two terms should be -5 and -9.

Therefore, the complete sequence is:

11, 7, 3, -1, -5, -9

The correct  equation is D. x2 + y2 + 6x − 24y + 148 = 0.

Equation is a physical and mathematical statement that describing physical phenomena and the relationship between different physical quantity typically consist of variable simple presenting physical quantity and then it personal variable may be pointed such as your energy.


This equation is the general form of a circle with center A and radius 5. The equation can be derived from the coordinates of the center A and the radius of the circle. The center of the circle is located at (-3, 12). To get the equation, first calculate the distance between the center A and a point on the circumference of the circle, which is the radius of the circle, 5. Then, use the Pythagorean theorem to calculate the equation of the circle: x2 + y2 + 6x – 24y + 148 = 0.
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The domain are the possible input while the range are the possible output of a function.

(a) The domain = [-√2, √2], the range = [0, 2]

(b) The domain = [-1, 1], the range = [0, 1]

(c) The domain = [-1, 1], the range = [0, -1]

(d) The domain = [0, 2], the range = [0, 1]

(e) The domain = [-(2 + √2), (√2 - 2)], the range = [0, 2]

Reasons:

The given functions can be expressed by the equation; (-x + 1)·(x + 1) = -x² + 1

Therefore, we have;

(a) y = f(x) + 1 = -x² + 1 + 1 = -x² + 2

The x-intercept of the above function are, x = √2, and x = -√2

Which gives;

The domain = [-√2, √2]

The range = [0, 2]

(b) y = 3·f(x) = 3 × (-x² + 1) = -3·x² + 3

At the x–intercepts, we have;

-3·x² + 3 = 0

x = ±1

The domain = [-1, 1]

The maximum value of y is given at x = 0, therefore;

= -3 × 0² + 3 = 3

The range = [0, 1]

(c) y = -f(x) = -(-x² + 1) = x² - 1

At the x–intercepts, x² - 1 = 0

x = ± 1

The domain = [-1, 1]

The minimum value of y is given at x = 0, which is y = -1

The range = [0, -1]

(d) y = f(x - 1) = -(x - 1)² + 1 = -x² + 2·x

At the x–intercepts, we have;  -x² + 2·x = 0, which gives;

(-x + 2)·x = 0

Which gives, x = 0, or x = 2

The domain = [0, 2]

The maximum value of y is given when x = -b/(2·a) = -2/(2×(-1)) = 1

y = f(1) =  -1² + 2×1 = 1

Therefore;

The range = [0, 1]

(e) y = f(x + 2) + 1 = (-(x + 2)² + 1) + 1 = -x² - 4·x - 2

At the x–intercepts, we have;  -x² - 4·x - 2 = 0, which gives;

x = -(2 + √2) or x = x = √2 - 2

The domain = [-(2 + √2), (√2 - 2)]

The maximum value of y is given when x = -4/(2)) = -2

Which gives;

-(-2)² - 4·(-2) - 2 = 2

The range = [0, 2]

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Answer:

Step-by-step explanation:

Let's call the distance from Planet A to one of the possible positions of Planet B "x". We can use trigonometry to relate the angle between the star and Planet B (19°), the distance from the star to Planet A (65 million miles), and the distances from Planet A to Planet B (x).

In a right triangle with angle 19°, the opposite side is x and the adjacent side is 65 - 45 = 20 million miles. Therefore, we can use the tangent function to relate these sides:

tan(19°) = x / 20

Solving for x, we get:

x = 20 tan(19°) ≈ 6.7 million miles

So one possible distance from Planet A to Planet B is approximately 6.7 million miles.

However, there is another possible position for Planet B, which is on the other side of Planet A as shown in the figure. In this case, the distance from Planet A to Planet B is:

y = 65 + 45 + 20 = 130 million miles

Therefore, the two possible distances from Planet A to Planet B are approximately 6.7 million miles and 130 million miles (rounded to the nearest tenth).

The probability that now the card is indeed a diamond or a face card is [tex]\frac{11}{26}[/tex].

The probability that any random event will occur is referred to as probability. This expression is used to calculate the likelihood that a given event will occur. When we fling a coin into the air, as an illustration. Probability: P(A) = f / N calculates the probability that an event will take place. Ratios and probability are related, but the former determines the latter. When calculating the likelihood of an event, it is necessary to know the probability of that event.

When we find the probability, we obtain:

A typical deck of cards contains 52 cards. There are 12 face cards, known as the Kings, Queens, and Jacks, because there are four suits. There are a total of 13 diamonds, of which 3 are previously counted face cards. Hence, there are 10 diamonds that are faceless.

So, total Diamond & face card =22

Probability =[tex]\frac{22}{52}[/tex]=[tex]\frac{11}{26}[/tex].

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Point-slope form: y - (-2) = -4(x - 2)

Slope-intercept form: y = -4x - 6

Own integers:

Point-slope form: y - 2 = -2(x - 4)

Slope-intercept form: y = -2x - 6

Point slope form is a type of linear equation that describes the relationship between two points on a line. It is written in the form: y - y1 = m(x - x1), where m is the slope of the line and (x1, y1) is a point on the line. Point slope form is used to find the equation of a line when given its slope and one point on the line. It can also be used to find the slope of the line when given two points on the line.

For example, if the point (2, 3) is given and the slope is 4, the point-slope form of the equation would be y - 3 = 4(x - 2).

The point-slope form of an equation of a line is an equation of the form y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope of the line. In this equation, (x1, y1) = (2, -2) and m = -4, so the point-slope form of the equation is y - (-2) = -4(x - 2).

The slope-intercept form of an equation of a line is an equation of the form y = mx + b, where m is the slope of the line and b is the y-intercept of the line. In this equation, m = -4 and b = -6, so the slope-intercept form of the equation is y = -4x - 6.

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Answer:

7 + (8 × t) = p, 15 + (6 × t) = p

Step-by-step explanation:

The equation you can use for charging a $7 entrance fee and then $8 for each ride ticket can look like this:

(let t = ride ticket & p = price)

The equation you can use for charging a $15 entrance fee and then $6 for each ride ticket can look like this:

Therefore, the equations you can use are listed above.

Answer:

12 tractors

Step-by-step explanation:

30/100 multiplied by 40 is 0.3 multiplied by 40

This gives you 12.

[tex]\frac{30}{100} \\ = 0.3\\0.3*40 = 12\\[/tex]

The domain and range of the given function :

Domain: {x | x ∈ ℝ, x ≠ -2}

Range: {y | y ∈ ℝ, y ≠ -12/5}

The given function is:

f(x) = (x^2 - 4x - 12)/(x + 2)

To find the domain of the function, we need to consider the values of x that make the denominator (x + 2) zero. If x + 2 = 0, then x = -2. Therefore, the function is undefined at x = -2, since division by zero is not allowed. Hence, the domain of the function is all real numbers except -2. We can express this mathematically as:

Domain: {x | x ∈ ℝ, x ≠ -2}

To find the range of the function, we need to consider the values that f(x) can take for all valid values of x. As x approaches infinity or negative infinity, the value of the function also approaches infinity (or negative infinity) since the degree of the numerator is greater than the degree of the denominator. Therefore, the range of the function is all real numbers except for a single point which is the vertical asymptote at x = -2.

Range: {y | y ∈ ℝ, y ≠ -12/5}

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Step-by-step explanation:

let the number be 'x'

x*-10+7=3x

-10x*7=3x

-3x=3x

Answer:

x = 12

m∠UTS = 87

m∠TSR = 143

Step-by-step explanation:

We know that the angles 56, (3 + 7x), and UST, add up to 180, and that UST and (12x - 1) also add up to 180

Therefore we can say UST = 180 - (12x - 1)

and that:

56 + 3 + 7x + (180 - (12x - 1)) = 180

59 + 7x + 180 - 12x + 1 = 180 (combine like terms and distribute negative)

240 - 5x = 180 (subtract 240 from both sides)

-5x = -60 (divide both sides by -5)

x = 12

Therefore,

m∠UTS = 3 + 7(12) = 87

and

m∠TSR = 12(12) - 1 = 143

Using Standard normal distribution, The probability that a family spends between $175 and $255 in playing video games every year is approximately 0.4821 or 48.21%.

Probability is a branch of mathematics that deals with the likelihood or chance of an event occurring. It is defined as the measure of the likelihood of an event happening, expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

The probability of an event can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. For example, the probability of rolling a 3 on a fair six-sided die is 1/6 because there is only one favorable outcome (rolling a 3) out of six possible outcomes (rolling a 1, 2, 3, 4, 5, or 6).

There are two types of probability: theoretical probability and experimental probability. Theoretical probability is based on mathematical analysis and assumes that all possible outcomes are equally likely to occur. Experimental probability, on the other hand, is based on actual observations and measurements of events and their outcomes.

Probability theory has many practical applications in fields such as statistics, economics, engineering, and physics. It can be used to model and predict the behavior of complex systems, such as stock prices, weather patterns, and the spread of diseases. Additionally, probability theory is used in decision-making processes to determine the most favorable course of action based on the likelihood of different outcomes.

(a) To find the probability that a family spends over $290 in playing video games every year, we need to standardize the value using the z-score formula:

z = (x - μ) / σ

where x is the value we want to find the probability for, μ is the mean, and σ is the standard deviation.

So, z = (290 - 238.92) / 31.38 = 1.63

Using a standard normal distribution table or a calculator, we can find that the probability of a z-score greater than 1.63 is 0.0516.

Therefore, the probability that a family spends over $290 in playing video games every year is approximately 0.0516 or 5.16%.

(b) To find the probability that a family spends less than $150 in playing video games every year, we again need to standardize the value using the z-score formula:

z = (x - μ) / σ

So, z = (150 - 238.92) / 31.38 = -2.83

Using a standard normal distribution table or a calculator, we can find that the probability of a z-score less than -2.83 is 0.0023.

Therefore, the probability that a family spends less than $150 in playing video games every year is approximately 0.0023 or 0.23%.

(c) To find the probability that a family spends between $175 and $255 in playing video games every year, we need to standardize the values of both $175 and $255 using the z-score formula:

z1 = (175 - 238.92) / 31.38 = -2.03

z2 = (255 - 238.92) / 31.38 = 0.51

Using a standard normal distribution table or a calculator, we can find the probability of a z-score between -2.03 and 0.51 is 0.4821.

Therefore, the probability that a family spends between $175 and $255 in playing video games every year is approximately 0.4821 or 48.21%.

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We would expect 306 people to go to see movies now, after the 32% decrease.

The expected value is calculated in statistics and probability analysis by multiplying each conceivable outcome by the likelihood that each outcome will occur, then adding up all of those values. By calculating anticipated values, investors can choose the scenario that is most likely to provide the desired outcome.

We must subtract 32% from the original number of persons in order to arrive at the anticipated number of people who would currently attend movies.

Let x represent the predicted proportion of moviegoers in the present. The following equation can be created:

x = 450 - 0.32*450

By condensing this equation, we obtain:

x = 450 - 144

x = 306

As a result, given the 32% decline, we would anticipate 306 individuals to attend movies this week.

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Answer:

Step-by-step explanation:

There are total 15 students who take all three subjects.

The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.

We know that;

n(A ∪ B ∪ C) = n(A) + n(B) + n(C) - n(A ∩ B) - n(B ∩ C)- n(A ∩ C)+ n(A∩B ∩C)

Here, Total number of students in the school = 62

Hence, By using theorem;

n(A ∪ B ∪ C) = n(A) + n(B) + n(C) - n(A ∩ B) - n(B ∩ C)- n(A ∩ C)+ n(A∩B ∩C)

Here, Let n(A) = Mathematics, n(B) =Physics and n(C) = Chemistry

so putting values,

62 =  40 + 42 + 38 - 20 - 28 - 25 + n(A∩B ∩C)

62 + 73 - 120 = n(A∩B ∩C)

n(A∩B ∩C) = 15

Therefore, There are total 15 students who take all three subjects.

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If values prοvided then transfοrmatiοn οf vectοrs can be determined.

In mathematics, a vectοr is a mathematical οbject that represents a quantity with bοth a magnitude and a directiοn. Vectοrs can be used tο represent physical quantities such as velοcity, fοrce, and acceleratiοn, as well as mοre abstract cοncepts such as cοlοr, sοund, and temperature.

Withοut seeing the figure οr the values οf a1, a2, and a3, it is nοt pοssible tο determine whether the specified linear transfοrmatiοn T : R2 → R2 is οne-tο-οne and οntο.

Hοwever, in general:

A linear transfοrmatiοn T : Rn → Rm is οne-tο-οne if and οnly if its kernel (i.e., the set οf vectοrs that are mapped tο the zerο vectοr) is trivial, meaning that the οnly vectοr that maps tο the zerο vectοr is the zerο vectοr itself.

A linear transfοrmatiοn T : Rn → Rm is οntο if and οnly if its range (i.e., the set οf all vectοrs that can be οbtained by applying T tο sοme vectοr in Rn) is equal tο Rm.

Tο determine whether a linear transfοrmatiοn is οne-tο-οne οr οntο, we can examine its prοperties and characteristics, such as its kernel, range, rank, and determinant. We can alsο use geοmetric intuitiοn and visualizatiοn tο understand hοw the transfοrmatiοn maps pοints and vectοrs in Rn tο Rm.

If yοu prοvide mοre infοrmatiοn abοut the values οf a1, a2, and a3 and the figure that shοws the standard matrix A, it can help yοu determine whether the transfοrmatiοn is οne-tο-οne and οntο and draw the image οf the vectοr [-1, 1] under the transfοrmatiοn T.

Therefοre, if values prοvided then transfοrmatiοn οf vectοrs can be determined.

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Complete question -

In Exercises 33–36, determine if the specified linear transformation is (a) one-to-one and (b) onto. Justify each answer. 14. Let T : R2 R2 be a linear transformation with standard matrix A = aaz], where a, and a, are shown in the figure. Using the figure, draw the image of under the transformation T. [-] 1

Answer: greater than 6 cm. less than 20 cm

Step-by-step explanation:

Answer:

How many centimeters are there in 58 inches?

1 in. = 2.54 cm

Step-by-step explanation:

Answer:

3(x + 5y) - 2(x + y)

3x + 15y - 2x - 2y

x + 13y

(3x + 15y) + (-2x + -2y)

x + 13y

Answer:

the amount of Basil Yamey's capital is £16,480.

Step-by-step explanation:

To calculate Basil Yamey's capital, we need to add up the value of his assets and subtract his liabilities.

The value of his assets is:

Van: £9,000

Market stall: £1,800

Computer: £280

Inventory of goods: £11,200

Cash in hand: £900

Money in the bank: £6,300

Total value of assets = £9,000 + £1,800 + £280 + £11,200 + £900 + £6,300 = £29,480

His liabilities are:

Amount still owed for inventory of goods: £5,000

Amount borrowed from Luca Pacioli: £8,000

Total liabilities = £5,000 + £8,000 = £13,000

Therefore, Basil Yamey's capital is:

Capital = Total value of assets - Total liabilities

Capital = £29,480 - £13,000 = £16,480

So the amount of Basil Yamey's capital is £16,480.

Answer:

Basil Yamey's capital is the total amount of money that he has invested in his business. This can be calculated as the sum of the cost of the assets that he has purchased, minus any outstanding debts, plus any cash or cash equivalents he has on hand.

The cost of the assets that Basil has purchased is:

£9,000 (van) + £1,800 (market stall) + £280 (computer) + £11,200 (inventory) = £21,280

He still owes £5,000 for the inventory, so the total cost of the assets minus the outstanding debt is:

£21,280 - £5,000 = £16,280

He borrowed £8,000, so the total amount of his capital is:

£16,280 + £8,000 = £24,280

He also has cash on hand and in the bank:

£900 (cash) + £6,300 (bank balance) = £7,200

So, Basil Yamey's total capital is £24,280 + £7,200 = £31,480.

The set of truth values that make the three specifications true is FFT, TFT, TFF, and TTT.

Let's break it down step by step:

u: The software system is being upgraded.

a: Users can access the file system.

s: Users can save new files.

The given specifications are as follows:

Whenever the system software is upgraded, users cannot access the file system.
If users can access the file system, then they can save new files.
If users cannot save new files, then the system software is not being upgraded.

Given these specifications, we can set up the following truth table:

The set of truth values that make the three specifications true is therefore FFT, TFT, TFF, and TTT.

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Answer:

Step-by-step explanation:

sh45haaa           aaaa

Answer:  My answer is long so I cannot write my answer here so i have attached my answer to your question (Notepad)

Step-by-step explanation:

Answer:

Step-by-step explanation:

y

Here, we let n be the number of sides of the regular polygon. Polygon area = n(12sh). As n increases, h approaches r so that rh approaches r² and hence, this statement is true. So, option 4 is the correct option.

When ns equals circumference or 2r, the polygon will turn into a circle.

A polygon must be converted into a circle.

Let s represent the polygon's side length, r represent the hypotenuse of the right triangle,

Let n be the regular polygon's number of sides and h be the height of the triangle.

The polygon's area is now specified as polygon area = n(1/2sh).

Now, we must suppose that the polygon's sides are infinite in order to obtain a circle. In order to do this, we must assume that the polygon's perimeter is the same as the circle's perimeter.

That's why when the number of sides of the polygon will increase its perimeter will become closer to 2πr and its area will become close to a circle.

The complete question that you might be looking for is-

A regular polygon inscribed in a circle can be used to derive the formula for the area of a circle. The polygon area can be expressed in terms of the area of a triangle. Let s be the side length of the polygon, let r be the hypotenuse of the right triangle, let h be the height of the triangle, and let n be the number of sides of the regular polygon. polygon area = n(12sh) Which statement is true?

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The probability that the arrival time between vehicles is 12 seconds or less found using exponential distribution is 0.6306.

What is meant by exponential distribution?

The exponential distribution is a continuous probability distribution used in probability theory and statistics that frequently addresses the amount of time until a given event occurs. Events occur continually, independently, and at a steady average pace during this process. The crucial characteristic of the exponential distribution is that it has no memory. Either more little values or fewer larger values can make up the exponential random variable. 

Given,

Mean = 12s

Mean = 1/λ = 12

λ = 1/12 = 0.083

Now we have to find CDF at 12s.

The probability that an observation from an exponential distribution, with the scale parameter, is smaller than or equal to x is returned by the CDF function for the exponential distribution.

CDF = F(x) = [tex]1- e^{-\lambda\*x}[/tex]

When x = 12

F(12) = [tex]1- e^{-0.083*12}[/tex] = 0.6306

Therefore the probability that the arrival time between vehicles is 12 seconds or less found using exponential distribution is 0.6306.

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The value of z in the figure is 56⁰.

What is an angle?

An angle is a figure in plane geometry that is created by two rays or lines that have a common endpoint. The Latin word "angulus," which means "corner," is the source of the English word "angle." The common endpoint of two rays is known as the vertex, and the two rays are referred to as the sides of an angle.

In the given figure, there are two pairs of vertically opposite angles.

The vertical opposite angle of 124⁰ is y⁰.

The vertical opposite angle of x⁰ is z⁰.

Thus, 124⁰ = y⁰ and x⁰ = z⁰.

The sum of all angles is 360⁰.

Therefore,

124⁰ + x⁰ +  y⁰ + z⁰ = 360⁰

Putting y⁰ = 124⁰ and x⁰ = z⁰ in the above equation:

124⁰ + z⁰ + 124⁰ + z⁰ = 360⁰

248⁰ + 2z⁰ = 360⁰

Subtract 248⁰ from both sides:

2z⁰ = 360⁰ - 248⁰

2z⁰ = 112⁰

Divide both sides by 2:

z⁰ = 56⁰

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The net income using FIFO, LIFO, and Weighted Average methods are $16200, $12700, $14100.3

To calculate the net income using different inventory valuation methods, we need to calculate the cost of goods sold (COGS) first, which is:

COGS = Beginning Inventory + Purchases - Ending Inventory

For each inventory valuation method, we will calculate the COGS and then subtract it from the total sales to find the net income.

1.

FIFO (First-in, First-out) method:

Under the FIFO method, we assume that the units sold are from the earliest inventory purchased. Therefore, the ending inventory consists of the most recently purchased units.

a. COGS:

Beginning inventory: 90 units at $40 = $3,600

Purchases: 310 units at $45 = $13,950

Total cost of goods available for sale = $3,600 + $13,950 = $17,550

Cost of goods sold = Total cost of goods available for sale - Ending inventory

= $17,550 - 30 units at $45 = $16,200

b. Net Income:

Sales = 370 units at $90 = $33,300

COGS = $16,200

Operating expenses = $4,100

Net income = Sales - COGS - Operating expenses

= $33,300 - $16,200 - $4,100

= $13,000

2.

LIFO (Last-in, First-out) method:

Under the LIFO method, we assume that the units sold are from the most recently purchased inventory. Therefore, the ending inventory consists of the earliest purchased units.

a. COGS:

Beginning inventory: 90 units at $40 = $3,600

Purchases: 310 units at $45 = $13,950

Total cost of goods available for sale = $3,600 + $13,950 = $17,550

Cost of goods sold = (Ending inventory at $40) + (Remaining units sold at $45)

= (30 units at $40) + (340 units at $45)

= $1,200 + $15,300

= $16,500

b. Net Income:

Sales = 370 units at $90 = $33,300

COGS = $16,500

Operating expenses = $4,100

Net income = Sales - COGS - Operating expenses

= $33,300 - $16,500 - $4,100

= $12,700

3.

Weighted Average method:

Under the weighted average method, we calculate the average cost per unit and use it to value both the cost of goods sold and ending inventory.

a. Average Cost per unit:

Total cost of goods available for sale = Beginning inventory + Purchases

= $3,600 + $13,950

= $17,550

Total units available for sale = Beginning inventory + Purchases + Ending inventory

= 90 + 310 + 30

= 430

Average cost per unit = Total cost of goods available for sale / Total units available for sale

= $17,550 / 430

= $40.81

b. COGS:

Cost of goods sold = Units sold x Average cost per unit

= 370 units x $40.81

= $15,099.7

c. Net Income:

Sales = 370 units at $90 = $33,300

COGS = $15,111.70

Operating expenses = $4,100

Net income = Sales - COGS - Operating expenses

= $33,300 - $15,099.7 - $4,100

= $14,100.3

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Answer: D

Step-by-step explanation: