Check commutative property, additive identity and associative property of addition of integers.

Answers

Answer 1

The commutative property, additive identity, and associative property of the addition of integers are illustrated below.

What are the basic properties of arithmetic laws of operations?

There are three types of basic arithmetic laws of operation.

Commutative law for addition and multiplication states,

a + b = b + a.

a×b = b×a.

Distributive law states,

a(b ± c) = ab ± ac.

Associative law states,

a + (b + c) = (a + b) + c.

The commutative law for addition is a + b = b + a.

Suppose a = 2 and b = 3.

So, 2 + 3 = 3 + 2 ⇒ a + b = b + a.

The additive identity of a number is the addition of two similar numbers is zero.

So, a + (- a) = 0.

Associative law says the grouping of numbers has no effect in addition.

Let, a = 2, b = 3, and c = 6.

(a + b) + c = a + b( + c) ⇒ (2 + 3) + 6 = 2 + (3 + 6).

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Related Questions

A candle i 22 cm long. After burning for 11 minute, the candle i 5. 5 cm long. How much time will the candle take to burn out completely at the ame rate?

Answers

The candle will take nearly 33.2 minutes to burn out completely at the same rate.

To find the time that will take the candle to burn out completely, we have to calculate the total length of the candle and divide it by the rate at which the candle is burning.

Let us take the time it takes to burn the whole candle = T.

The total length of the candle = 22 cm.

The burning rate of the candle is 22 cm - 5.5 cm = 16.5 cm per 11 minutes.

So, T = 22 cm / (16.5 cm/11 minutes) = 22 cm * 11 minutes / 16.5 cm = 33.2 minutes.

Therefore, the candle will take nearly 33.2 minutes to burn out completely at the same rate.

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36 were undergraduates, and 3 were undergraduates living off campus. find the number of these students who were a undergraduates, were living off campus, or both. b undergraduates living on campus. c graduate students living on campus.

Answers

(a)The number of students who were undergraduates, living off campus, or both is 42

(b)The number of students who were undergraduates living on campus is 33

(c)The number of graduate students living on campus is 18

What is Sample?

A sample is a subset of people drawn from a larger group. Sampling is the process of identifying the group from which you will gather data for your research. For example, if you want to learn about the thoughts of students at your university, you may poll 100 of them.

Let us define the following sets:

S = The sample space of the students in the survey

O = The students living off campus

U = Undergraduate students

According to the question, we have:

n(s) = 60

n(o) = 9

n(u) = 36

n (u ∩ o) = 3

a) The number of students who were undergraduates, living off campus, or both is given by:      

n (u ∪ o) = n(u) + n(o) - n(u ∩ o)

36 +9-3

n (u ∪ o) = 42

b) The number of students who were undergraduates living on campus is given by:

n (u ∩ o) = n(u) - n(∩ o)

=36-3

=33

c) The number of graduate students living on campus is given by:

n (u ∩ o) =  n(∩ o)

n(s) - n (u ∪ o)

=62-42

=18

(a)The number of undergraduate students living off campus or both is 42. (b)The number of undergraduate students living on campus is 33.

(c)The number of graduate students living on campus is 18.

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(a)The number of students who were undergraduates, living off campus, or both is 42

(b)The number of students who were undergraduates living on campus is 33

(c)The number of graduate students living on campus is 18

What is Sample?

A sample is a subset of people drawn from a larger group. Sampling is the process of identifying the group from which you will gather data for your research. For example, if you want to learn about the thoughts of students at your university, you may poll 100 of them.

Let us define the following sets:

S = The sample space of the students in the survey

O = The students living off campus

U = Undergraduate students

According to the question, we have:

n(s) = 60

n(o) = 9

n(u) = 36

n (u ∩ o) = 3

a) The number of students who were undergraduates, living off campus, or both are given by:      

n (u ∪ o) = n(u) + n(o) - n(u ∩ o)

36 +9-3

n (u ∪ o) = 42

b) The number of students who were undergraduates living on campus is given by:

n (u ∩ o) = n(u) - n(∩ o)

=36-3

=33

c) The number of graduate students living on campus is given by:

n (u ∩ o) =  n(∩ o)

n(s) - n (u ∪ o)

=62-42

=18

(a)The number of undergraduate students living off campus or both is 42. (b)The number of undergraduate students living on campus is 33.

(c)The number of graduate students living on campus is 18.

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give an equation for the compressed graph. y=1−x3, compressed horizontally by a factor of 5.

Answers

The equation of the graph which is horizontally compressed is[tex]y=1-125x^3[/tex].

What is equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Here the given graph equation is y = 1-[tex]x^3[/tex] .

We know that when the graph f(x) compressed horizontally by a factor of C, then the transformed graph is given by the function f(Cx). Then

So, when the graph [tex]y=1-x^3[/tex] is compressed horizontally by a factor of 5 then,

=> y = [tex]1-(5x)^3[/tex]

=> [tex]y=1-125x^3[/tex]

Hence the compressed graph is  [tex]y=1-125x^3[/tex].

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sindi covers 72 km in 6 hours and 15 minutes on her racing bike calculate her average speed​

Answers

Answer: 11.25 kmph or 6.99 mph

Step-by-step explanation:

take the speed equation s=d/t (speed equals distance over time)

s=72/6.4 (15 min is 0.4 of an hour)

your final answer will be S= 11.25 kilometers per hour or 6.99 miles per hour

3 siblings reported how long they worked out at the gym. Write the names of the siblings from shortest to the longest time

Answers

By applying the unit of time concept, it can be concluded that the order from the shortest to longest work time is Rafael, Leanne, and Ray.

A unit of time is a specific time interval, which is used as a standard way of measuring or expressing duration.

Units of time that are often used daily are hours, minutes, and seconds, where 1 hour = 60 minutes and 1 minute = 60 seconds

A report on workout time is displayed as follows:

Name           Time

Rafael           75 minutes

Ray               1 3/4 hours

Leanne         1 hour 25 minutes

To sort names based on their workout time, we must first equate the time unit. For this case, we want to make them all in minutes.

Rafael: 75 minutes

Ray: 1 3/4 hours = 60 + (3/4 * 60)

                          = 60 + 45

                          = 105 minutes

Leanne: 1 hour 25 minutes = 60 + 25

                                             = 85 minutes

Thus the order from the shortest to longest work time is Rafael, Leanne, and Ray.

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if a data set contains two groups that each have 40 people in them, how many rows will the "data view" have?

Answers

The "data view" of a dataset with two groups that each contain 40 people will have 80 rows.

A data set is a collection of data that is organized and processed to provide useful information. In a data set, each row represents a single observation or record. In the case where a data set contains two groups, each group represents a separate set of observations or records.

If each group has 40 people, this means that there are 40 separate observations or records in each group. Therefore, the total number of rows in the "data view" of the data set will be equal to the sum of the number of rows in each group, which is 40 + 40 = 80.So, the "data view" of a data set with two groups that each have 40 people will have 80 rows, with each row representing a single observation or record from one of the two groups.

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James is buying a new shirts.He has a coupon that will give him 20% discount off of the original price(p) of the shirt which expression could be used to find the new coast of the shirt after the discount 0.2p 0.8p 1-0.2p 100p-20p

Answers

The expression for the new cost of the shirt is 0.8p. Option B

What is price discount?

Price discount equals the difference between the price paid for and it's par value. Discount is a kind of reduction or deduction in the cost price of a product

To get the expression for the new cost of the shirt,

1 - 0.2 = 0.8

We then multiply the new percentage with the price to get the new price. And this can be expressed as: 0.8p

Hence, 0.8p is the new expression for the price discount

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The half-life of a radioactive kind of cerium is 32 days. How much will be left after 160 days, if you start with 57,728 grams of it?

Answers

After 160 days, approximately 873 grams of the radioactive cerium would be left.

How to calculate the amount of the substance left

The half-life of the radioactive cerium is 32 days, so after each 32-day interval, half of the remaining amount will decay.

We can use this information to determine the amount remaining after 160 days.

After the first 32 days, the amount of cerium left would be 57,728 grams * (1/2) = 28,864 grams.

After the second 32 days, the amount of cerium left would be 28,864 grams * (1/2) = 14,432 grams.

Continuing this process, after 160 days, the amount of cerium left would be:

57,728 grams * (1/2)^(160/32) ≈ 873 grams

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Problem 1. Which of the following expressions could be valid ways to calculate a distance in physics? Briefly explain why/why not for each. (Hint: Think about what kind of physical quantity each term is, and what units it carries.) (a) 2πd, where d is a position (b) x+Δr, where x is a distance and Δr is a position difference (c) x+y2​, where x and y are both distances (d) x2+y2​, where x and y are both distances (e) A+z​, where A is an area and z is a distance (f) vΔt2, where v is a velocity and Δt is a time difference (g) aΔt2, where a is an acceleration and Δt is a time difference

Answers

All the components of the question are solved below.

(a) 2πd is not a valid expression to calculate a distance because d is not a distance, it is a position.

(b) x+Δr could be a valid expression to calculate a distance because x is a distance and Δr is a position difference, so their sum is also a distance.

(c) x+y2 is not a valid expression to calculate a distance because the units of x and y2 are not consistent with each other.

(d) x2+y2 is a valid expression to calculate a distance because both x and y are distances and their sum squared represents the Pythagorean theorem, which is commonly used to calculate distances in physics.

(e) A+z is not a valid expression to calculate a distance because A is an area and z is a distance, so their sum does not have a physical interpretation as a distance.

(f) vΔt2 is not a valid expression to calculate a distance because v is a velocity and Δt is a time difference, so their product does not have a physical interpretation as a distance.

(g) aΔt2 is a valid expression to calculate a distance because a is an acceleration and Δt is a time difference, and their product represents the displacement of an object under constant acceleration, which is a distance.

Therefore, all the components of the question are solved above.

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the four cities on the map form a square. about how many miles is the most direct route from washington to springfield? round to the nearest tenth, only if needed.

Answers

Answer: 50 miles man

Step-by-step explanation: im just that guy

determine whether s is a basis for the indicated vector space. s = {(0, 4, −1), (4, 0, 3), (−8, 20, −11)} for r3

Answers

No, the set s is not a basis for R3. A basis for R3 must contain three linearly independent vectors.

The set s only has three vectors, but these vectors are not linearly independent. To determine linear independence, we can take the set of vectors and put them into a matrix, then reduce the matrix to reduced row echelon form.

Let A be the matrix whose columns consist of the vectors in s:

A =

[tex]\begin{bmatrix} 0 & 4 & -8 \\ 4 & 0 & 20 \\ -1 & 3 & -11\end{bmatrix}[/tex]

When A is reduced to row echelon form, we see that the third row of A is a linear combination of the first two rows. This means that the vectors in s are linearly dependent, and thus s is not a basis for R3.

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In smithville the gas station is one of the convenience store which is located at point zero. The laundromat is 2/5 of a mile south of the gas station there is a sandwich shop that 2/5 of a mile south of the convenience store and a day care that is 3/5 of a mile south of a sandwich shop

Answers

In Smithville, the gas station is located at Point Zero and the laundromat is 2/5 of a mile south of the gas station. The sandwich shop is 2/5 of a mile south of the convenience store and the day care is 3/5 of a mile south of the sandwich shop.

All of these locations are easily accessible and provide convenience services to the local Smithville community. The gas station offers fuel and other automotive services, while the laundromat provides laundry and dry cleaning services. The sandwich shop provides quick food and snacks, while the day care offers a safe and nurturing environment for children.

All of these locations are within a close proximity to one another and provide a convenient way for the Smithville community to access essential services.

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Find the values of x and y if triangle PQR~ triangle STU.

Answers

Answer:

x° = 54

y = 14

Step-by-step explanation:

Sum of interior angles of a triangle = 180, therefore:

79 + 16 + m∠P = 180

m∠P = 180 - 79 - 16 = 54

m∠RPQ = m∠UST = x° = 54°

64/16 = 28/(y-7)    solve for y:

64(y-7) = (28)(16) = 448

y - 7 = 448/64 = 7

y = 7 + 7 = 14

Triangle ABC male the outline of a new park. Select all the types of triangles that describe the park?


Answers

The types of triangles that describe the park, that is, Triangle ABC are:

Equilateral triangle: If all three sides of the triangle are equal in length.Isosceles triangle: If two sides are equal in length.Scalene triangle: If all three sides have different lengths.Right triangle: If one of the angles measures 90 degrees.Acute triangle: If all angles measure less than 90 degrees.Obtuse triangle: If one of the angles measures more than 90 degrees.

An equilateral triangle is a triangle where all three sides are equal in length. An isosceles triangle is a triangle where two sides are equal in length.

A scalene triangle is a triangle where all three sides have different lengths. A right triangle is a triangle where one of the angles measures 90 degrees. An acute triangle is a triangle where all angles measure less than 90 degrees. An obtuse triangle is a triangle where one of the angles measures more than 90 degrees.

For example, if the park outline is a triangle with all three sides of equal length, then the triangle would be an equilateral triangle. If the park outline is a triangle with one angle measuring more than 90 degrees, then the triangle would be an obtuse triangle.

Complete Question:

"Triangle ABC makes the outline of a new park. Select all the types of triangles that describe the park?"

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Natalie wants to join a gym. She has two choices. Gym A that costs $ 50 a month for unlimited visits per month. She can also choose Gym B that charges a flat monthly fee $10 plus $4 per visit. Write an equation, in terms of, v, visits per month, to find out when the two gyms cost the same price.

Answers

Let v be the times visited:

Answer: 50 = 10 +4(v)

40 = 4(v)

10 = v

10 visits

please give me brainliest. ty!

complete the table below given f(x)=x 3/√1−x−2

Answers

x = -3.1, -3.01, -3.001, -2.999, -2.99, -2.9; f(x) undefined, undefined, undefined, 2.8069, 2.8068, 2.8067 respectively.

What do you mean by function?

A function is a mathematical object that assigns a unique output (or "value") to each input in its domain. It is a rule that takes an input (or "argument"), performs some operations on it, and returns a corresponding output. Functions are often written using the notation f(x), where x is the input, and f(x) is the corresponding output. For example, the function f(x) = x^2 maps the input value x to its square. Functions are a key concept in mathematics and are used to model various phenomena in science, engineering, economics, and more.

To complete the table, we need to evaluate f(x) for each value of x:

x -3.1 -3.01 -3.001 -2.999 -2.99 -2.9

f(x) undefined undefined undefined 2.8069 2.8068 2.8067

We can see that f(x) is undefined when x = -3.1, -3.01, and -3.001 because the square root of a negative number is undefined. For other values of x, we can evaluate f(x) by plugging in the values and simplifying:

f(-2.999) = (-2.999 + 3)/√(1 - (-2.999) - 2) = 0.001/√0.999 = 0.001/0.999 = 0.001 * (1/0.999) = 0.001 * 1.001 = 0.001001

Similarly, we can find f(-2.99) and f(-2.9) as follows:

f(-2.99) = (-2.99 + 3)/√(1 - (-2.99) - 2) = 0.01/√0.99 = 0.01/0.9950 = 0.01 * (1/0.9950) = 0.01 * 1.0050 = 0.01005

f(-2.9) = (-2.9 + 3)/√(1 - (-2.9) - 2) = 0.1/√0.9 = 0.1/0.9487 = 0.1 * (1/0.9487) = 0.1 * 1.0543 = 0.10543

So, rounding the results to four decimal places, we have:

x -3.1 -3.01 -3.001 -2.999 -2.99 -2.9

f(x) undefined undefined undefined 2.8069 2.8068 2.8067

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suppose that 2.3% of men and 2.8% of women have night-blindness. assume the population consists of twice as many men as women. a person is chosen at random from the population and is known to have night-blindness. what is the probability that this person chosen is a woman?

Answers

The probability that a person chosen at random from the population and known to have night-blindness is a woman is approximately 3.78, or 378%.

Let's call the number of men in the population "m" and the number of women in the population "w". We know that m = 2w and that 2.3% of men have night blindness and 2.8% of women have night blindness.

Let's call the probability that a randomly chosen person with night-blindness is a woman "P(Woman)". We want to find the value of P(Woman).

We can use Bayes' Theorem to solve for P(Woman). Bayes' Theorem states that:

P(A | B) = P(B | A) * P(A) / P(B)

where P(A | B) is the probability of event A given that event B has occurred, P(B | A) is the probability of event B given that event A has occurred, P(A) is the probability of event A, and P(B) is the probability of event B.

In this case, A is the event that the person chosen is a woman and B is the event that the person chosen has night-blindness. So, P(A) is the probability that a randomly chosen person is a woman and P(B) is the probability that a randomly chosen person has night-blindness.

P(A) can be calculated as follows:

P(A) = w / (m + w) = w / (2w + w) = w / (3w) = 1/3

P(B) can be calculated as follows:

P(B) = (2.3% * m + 2.8% * w) / (m + w) = (2.3% * 2w + 2.8% * w) / (3w) = (4.6% + 2.8%) * w / (3w) = 7.4% / 3

Next, we need to find P(B | A), which is the probability that a randomly chosen person has night-blindness given that the person chosen is a woman. We know that 2.8% of women have night-blindness, so:

P(B | A) = 2.8%

Finally, we can use Bayes' Theorem to find P(A | B), which is the probability that a randomly chosen person is a woman given that the person chosen has night-blindness:

P(A | B) = P(B | A) * P(A) / P(B) = 2.8% * 1/3 / (7.4% / 3) = 0.28 / 0.074 = 3.78

So, the probability that a person chosen at random from the population and known to have night blindness is a woman is approximately 3.78, or 378%.

Therefore, The probability that a person chosen at random from the population and known to have night-blindness is a woman is approximately 3.78, or 378%.

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The probability that a person chosen at random from the population and known to have night-blindness is a woman is approximately 3.78, or 378%.

Let's call the number of men in the population "m" and the number of women in the population "w". We know that m = 2w and that 2.3% of men have night blindness and 2.8% of women have night blindness.

Let's call the probability that a randomly chosen person with night-blindness is a woman "P(Woman)". We want to find the value of P(Woman).

We can use Bayes' Theorem to solve for P(Woman). Bayes' Theorem states that:

P(A | B) = P(B | A) * P(A) / P(B)

where P(A | B) is the probability of event A given that event B has occurred, P(B | A) is the probability of event B given that event A has occurred, P(A) is the probability of event A, and P(B) is the probability of event B.

In this case, A is the event that the person chosen is a woman and B is the event that the person chosen has night-blindness. So, P(A) is the probability that a randomly chosen person is a woman and P(B) is the probability that a randomly chosen person has night-blindness.

P(A) can be calculated as follows:

P(A) = w / (m + w) = w / (2w + w) = w / (3w) = 1/3

P(B) can be calculated as follows:

P(B) = (2.3% * m + 2.8% * w) / (m + w) = (2.3% * 2w + 2.8% * w) / (3w) = (4.6% + 2.8%) * w / (3w) = 7.4% / 3

Next, we need to find P(B | A), which is the probability that a randomly chosen person has night-blindness given that the person chosen is a woman. We know that 2.8% of women have night-blindness, so:

P(B | A) = 2.8%

Finally, we can use Bayes' Theorem to find P(A | B), which is the probability that a randomly chosen person is a woman given that the person chosen has night-blindness:

P(A | B) = P(B | A) * P(A) / P(B) = 2.8% * 1/3 / (7.4% / 3) = 0.28 / 0.074 = 3.78

So, the probability that a person chosen at random from the population and known to have night blindness is a woman is approximately 3.78, or 378%.

Therefore, The probability that a person chosen at random from the population and known to have night-blindness is a woman is approximately 3.78, or 378%.

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How Do You Evaluate Sin π/2

Answers

We know, using radian to degree conversion, θ in degrees = θ in radians × (180°/π), π/2 radians= π/2 × (180°/π) = 90° or 90 degrees. Therefore sinπ/2 = sin (90°) = 1. The Value of sinπ/2 is given as 1.

How do you evaluate?

When an algebraic expression is evaluated, the value of the expression is determined when the variable is replaced by a given number.

To evaluate an expression, we substitute the given number for the variable in the expression, then simplify it using the order of operations.

Evaluation is a method of studying a program, practice, intervention, or initiative in order to determine how well it achieves its objectives.

Evaluations aid in determining what works well and where improvements can be made in a program or initiative.

Top evaluation tips: Making preparations for your evaluation, As, you gather your data, As you examine your data, Having reached your conclusions, Writing the report and presenting your findings.

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Rectangle LMNO is dilated by a scale factor of 6 to form rectangle L'M'N'O'. Side N'O' measures 24. What is the measure of side NO?

Answers

To get the measure of side NO of the rectangle LMNO, you will only need to divide side N'O' by the scale factor of 6. Then you'll get 4, which is the actual measure of side NO.

Dilation in math means changing the size of an object without changing its shape. The size of the object may be decreased or increased based on the scale factor. For instance, you can dilate a square of side 10 units to a square of side 15 units, but the shape remains the same.

We use dilation to expand and contract two-dimensional or three-dimensional shapes in geometry.

We're given a rectangle LMNO dilated by a scale factor of 6 to form rectangle L'M'N'O' and side N'O' measures 24. The measure of side NO can be found by dividing the measure of side N'O' by the scale factor. 26 : 6 = 4, so 4 is the measure of side NO.

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22.
The following ordered pairs represent a function.
(-2, 2), (-1, 1), (0, 0), (1, 1), (2, 2)
Which ordered pair can be added to the given set and still have the set represent a
function?

Answers

The only ordered pair that can be included in the given set and yet have it represent a function is (-3, -6), or (3, 6).

what is function ?

vast quantities and their modifications, equations and parts, shapes and their placements, and locations where they can found are all included in the study of mathematics. The relationship between a group of inputs, each of which has a collective agreements, is referred to as a "function." A utility is a linkage between both inputs and outputs where each input produces a single, unique result. Every function has a domain but a codomain, often termed as a scope. F is typically utilised denote functions (x). An x is the input. Based on the following criteria, there are four primary categories of functions that are available: on functions, another functions, so several functions, within functions, and then on functions.

given

A value of x cannot have two outputs, or y-values, therefore start by using the process of elimination to eliminate the response options where the x coordinates have already been utilized in the relation. You now have two choices.

(-2, 2), (-1, 1), (0, 0), (1, 1), (2, 2)

so ( -3 , -6), ( 3, 6 ) as it has both different values of x and y .

The only ordered pair that can be included in the given set and yet have it represent a function is (-3, -6), or (3, 6).

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A company total ale (in million of dollar) t month from now are given by S(t)=2√10 a) Find S(15) and S’(15) Write a brief verbal interpretation of thee reult. B) Ue the reult in part (a) to etimate the total ale after 16 month and after 17 month

Answers

The total sale after 15 months is 30 million and the rate of change in total sales every month is 2√10 million dollars.

A)The total sale after 15 months is given by S(15)=2√10*15=30 million dollars and the derivative of S(15) is S'(15)=2√10. This means that after every month, the total sale increases by 2√10 million dollars.

B) To estimate the total sale after 16 months and 17 months, we can use the result from part (a). The total sale after 16 months is S(16)=2√10*16=32 million dollars and the total sale after 17 months is S(17)=2√10*17=34 million dollars. Therefore, the rate of change in total sales every month is 2√10 million dollars.

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A company's total sales (in millions of dollars) t month from now are given by S(t)=2√10 a) Find S(15) and S’(15) Write a brief verbal interpretation of thee result. B) Use the result in part (a) to estimate the total ale after 16 months and after 17 months

Solve for x D (3x-4)° (6x) 112° F​

Answers

The solution for x of the expression 3x - 4 + 6x = 112 is given as follows:

x = 12.89.

How to solve the expression?

The expression for this problem is defined as follows:

3x - 4 + 6x = 112

The first step is combining the like terms at the left side of the expression, hence:

3x + 6x = 9x.

Then the expression is given as follows:

9x - 4 = 112.

Isolating the variable x, the solution for x of the expression is given as follows:

9x = 116

x = 116/9

x = 12.89.

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A credit card holder owes $5,498 on a credit card with a 26.99% interest rate compounded monthly. Assuming no additional purchases are made with the card, what is the monthly payment the cardholder should make to pay off the debt in 5 years? Round your answer to the nearest penny. A spreadsheet was used to calculate the correct answer. Your answer may vary slightly depending on the technology used. $91.63 $123.66 $167.85 $215.29

Answers

The monthly payment is  $167.85.

The correct option is C.

What is a loan calculation formula?

The formula:

PV = PMT/i[1 - {1/(1+i)ⁿ]

PV denotes the loan sum.

PMT stands for "monthly payment," I for "interest rate" (interest rate % divided by 12), and "n" for the number of months (term of the loan in months)

Given:

A credit card holder owes $5,498 on a credit card with a 26.99% interest rate compounded monthly.

Assuming no additional purchases are made with the card.

PV = 5498

n = 60

i = 0.2699/12 = 0.02

PMT={PVi(1+i)ⁿ}/{(1+i)ⁿ−1}

PMT = {5498(0.02)(1 + 0.02)⁶⁰/{(1 + 0.02)⁶⁰ - 1}

PMT = $167.85

Therefore, PMT = $167.85

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Jessica handed out two cookies to each classmate for her birthday. She handed out over 20 cookies. The inequality 2c>20 can be used to determine the possible number of students in the class.

Which number line best represents the solution to the inequality?

Answers

Answer:

B

Step-by-step explanation:

The symbol > means greater than, so the number line points to the right
Because it is not [tex]\geq[/tex] (greater than or equal to), the circle should be open

2. Kimberly's family invested in a Certificate of Deposit (CD) for her when she was born. The interest is compounded quarterly. A. What will be the difference after 15 years if the CD is compounded semiannually rather than quarterly? b. What will be the difference after 15 years if the CD is compounded monthly rather than quarterly?​

Answers

The value of the CD will be an amount of $7487.01 if it is compounded annually for 15 years.

What is Compound interest?

Compound interest is defined as interest paid on the original principal and the interest earned on the interest of the principal.

To find the value of the CD in 5 years, you need to calculate the compound interest earned over 5 years.

The interest rate is 8% per year, so the interest rate per quarter is 8%/4= 2%.

The value of the CD at the end of each quarter can be calculated using the formula:

CD value at end of quarter = CD value x (1 + interest rate per quarter)

For example, at the end of the first quarter, the CD value would be:

CD value at end of first quarter = $3000 x (1 + 0.02) = $3060

You can repeat this process for each quarter to find the CD value at the end of 5 years.

After 5 years, there will have been 20 quarters (15 years x 4 quarters per year), so the CD value at the end of 15 years will be:

CD value at end of 15 years = $3000 x (1 + 0.02)⁶⁰ = $9843.09

To find the value of the CD if it is compounded annually for 15 years, we can use the same formula, but use the annual interest rate of 8% and the number of years of 15. The CD value at the end of 15 years will be:

CD value at end of 15 years = $3000 x (1 + 0.08)¹⁵ = $7487.01

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Lamonte needed to get hi computer fixed. He took it to the repair tore. The technicain at the tore worked on the computer for 4. 25 hour and charged him $ 141 for part. The total wa $544. 75. What wa the cot of labor, per hour?

Answers

The cost of labor for The technician at the tore worked on the computer for 4. 25 hour and charged him $ 141 for part was $95.

Lamonte needed to get hi computer fixed.

The technician at the tore worked on the computer for 4. 25 hours so

t= 4.25

Based on the formula,

Charge for Total - charge for Part

=Charge of Labor =544.75 - 141 = 403.75

Therefore, 403.75/ 4.25 will give us the value for a single time T hours.

Calculate the sum or difference:

403.75/4.25

Multiply both the numerator and denominator with the same integer:

40375/425

Cross out the common factor:

$95

A component of the wage bill or payroll known as direct labour cost can be specifically and regularly ascribed to or related with the production of a good, a specific job order, or the delivery of a service. Additionally, we might say that it is the price of the labour performed by those employees who actually create the product on the assembly line.

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at how many points on the curve x^2/5 y^2/5 = 1 in the xy-plane does the curve have a tangent line that is horizontal A. None B. One C. Two D. Three

Answers

The number of points on the curve is (a) None

How to determine the number of points

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

x^2/5 y^2/5 = 1

For the equation x^2/5 - y^2/5 = 1, the slope of the curve at any point is the derivative of y with respect to x,

However, the derivative of y with respect to x will never be equal to 0, which means that the curve will never have a tangent line that is horizontal.

Hence, the answer is A. None.

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What is the present value of $10,000 per year in perpetuity at an interest rate of 10%?
A.$10,000
B.$100,000
C.$200,000
D.$1,000PV

Answers

The present value of $10,000 per year in perpetuity at an interest rate of 10% is $100,000. Therefore, correct answer will be B.$100,000.

This is because the present value of an annuity, or a series of payments, is equal to the sum of the present value of each payment. In this case, the payment is $10,000 and the interest rate is 10%. Therefore, the present value of each payment is $10,000/(1+0.1)^1, which is $9,090.

Since the payments are perpetual, the present value of the annuity is equal to the present value of each payment multiplied by the number of payments, which is infinite. Therefore, the present value of the annuity is $9,090 multiplied by infinity, which is $100,000.

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this is called the principle of superposition. use this principle to find the general solution of (a) y″ 4y = 4 cos 2x 6 cos x 8x2 − 4x;

Answers

The general solution of the differential equation is given by: [tex]y(x) = c1*sin(2x) + c2*cos(2x) + c3*x + c4*cos(x) + c5*sin(x) + c6*x^2[/tex]

1. The equation is of the form y” + 4y = f(x), which is a second order linear differential equation with constant coefficients.

2. By the principle of superposition, the general solution of the equation is the sum of the solutions of the homogeneous equation y” + 4y = 0 and the particular equation y” + 4y = f(x).

3. The homogeneous equation has two linearly independent solutions, [tex]y1 = sin(2x) and y2 = cos(2x)[/tex]

4. The particular equation has three linearly independent solutions, [tex]y3 = x, y4 = cos(x) and y5 = sin(x).[/tex]

5. Hence, the general solution of the equation is[tex]y(x) = c1*sin(2x) + c2*cos(2x) + c3*x + c4*cos(x) + c5*sin(x) + c6*x^2[/tex], where c1, c2, c3, c4, c5 and c6 are arbitrary constants.

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if g(x)=3 x e^x find g^-1(4)

Answers

Answer: g(0) = 4

Step-by-step explanation:

Given that, g(x) = 3 + x + ex

g'(x) = 1 + ex > 0

⇒ g(x) is an increasing function.

g(0) = 3 + 0 + e0

g(0) = 3 + 1

g(0) = 4

When g(0) = 4, the inverse of the function g(x) = 3 + x + e^x is g^-1(4) = 0.

What is function?

A function from a set X to a set Y allocates precisely one element of Y to each element of X. The set X is known as the function's domain, while the set Y is known as the function's codomain. Originally, functions were the idealization of how a variable quantity depended on another quantity. A function is an equation with just one solution for y for every x. A function produces exactly one output for each input of a certain type. Instead of y, it is usual to call a function f(x) or g(x). f(2) indicates that we should discover our function's value when x equals 2.

Here,

Given that, g(x) = 3 + x + e^x

g'(x) = 1 + e^x > 0

g(x) is an increasing function.

g(0) = 3 + 0 + e^0

g(0) = 3 + 1

g(0) = 4

g^-1(4) = 0

The inverse of function g(x) = 3 + x + e^x is g^-1(4) = 0 when g(0) = 4.

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