Como expresar

[tex]\frac{20*19*18}{4*3*2*1}[/tex]

:>

Answer:

There were 62 people on the train to begin with.

Step-by-step explanation:

Firstly,i I subtracted 21 with 18 so i got 3.

It means that the train got 3 more people from the start.

Then i subtracted 65 with 3.

And so i got 62.

There are 2(24!) - 23! arrangements of the 26-letter alphabet that contain "the" or "of."

To find the number of arrangements of the 26-letter alphabet that contain "the" or "of," we can use the principle of inclusion-exclusion.

First, we find the total number of arrangements of the 26-letter alphabet, which is 26! (26 factorial).

Next, we find the number of arrangements that contain "the." To do this, we treat "the" as a single letter and arrange the remaining 24 letters along with it. Since there are 24 letters to arrange, the number of arrangements that contain "the" is 24! (24 factorial).

Similarly, we find the number of arrangements that contain "of" by treating it as a single letter and arranging the remaining 24 letters along with it. The number of arrangements that contain "of" is also 24!.

However, if we simply add the number of arrangements that contain "the" and "of," we will be double-counting the arrangements that contain both "the" and "of." To correct for this, we subtract the number of arrangements that contain both "the" and "of."

To find the number of arrangements that contain both "the" and "of," we treat "the of" as a single letter and arrange the remaining 23 letters along with it. Since there are 23 letters to arrange, the number of arrangements that contain both "the" and "of" is 23! (23 factorial).

Using the principle of inclusion-exclusion, the total number of arrangements that contain "the" or "of" is:

24! + 24! - 23! = 2(24!) - 23!

Therefore, there are 2(24!) - 23! arrangements of the 26-letter alphabet that contain "the" or "of."

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We can write the integral of f(x) as the sum of the integral of the even component, e(x), and the integral of the odd component, o(x). This gives us the following equation:  ∫f(x)dx = ∫e(x)dx + ∫o(x)dx

Integrals can be written as the sum of the integral of an odd function and the integral of an even function. This is because any function can be broken down into its even and odd components. Even functions are those that remain unchanged when reflected over the x-axis. This means that the result of evaluating the function for any x-value is the same as the result for its negative. Odd functions are those that change sign when reflected over the x-axis. This means that the result of evaluating the function for any x-value is the negative of the result for its negative.

The integral of an even function is the same regardless of whether it is written as the sum of the integral of an odd function and the integral of an even function, or if it is written just as an integral of the even function. The integral of an odd function is the negative of the integral of the even function when written as the sum of the two integrals.

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The bonus question asks for the application of the integral test to determine the convergence of the series given by 2n*e^(-a).

The integral test is a method used to determine the convergence or divergence of a series by comparing it to the integral of a related function. In this case, we are given the series 2n*e^(-a), and we can use the integral test because the terms of the series involve the variable 'n', and the function e^(-a) can be integrated.

To apply the integral test, we consider the integral of the function corresponding to the series. In this case, we integrate the function f(x) = 2x*e^(-a) from 1 to infinity. If this integral converges, then the series is also convergent. Conversely, if the integral diverges, then the series is divergent.

By evaluating the integral of f(x) and analyzing its convergence or divergence, we can determine whether the given series 2n*e^(-a) converges or diverges. Showing all the steps in evaluating the integral and discussing the convergence properties of the resulting integral will be necessary to receive full credit for this question.

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Rounded to two decimal places, the value of the test statistic is 0.41.

The value of the test statistic to compare the publisher's reported percentage of 75% and the marketing executive's claim that the actual percentage is different can be found by using the formula z = (p1 - p2)/(sqrt[p*(1-p)*((1/n1)+(1/n2))]), where p is the pooled proportion, p1 is the proportion of the publisher's readers owning the particular make of car, p2 is the proportion of the random sample owning the particular make of car, n1 is the total number of the publisher's readers, and n2 is the total number of the random sample.

In this case, p = [tex](75% + 69%)/2 = 72%, p1 = 75%, p2 = 69%, n1[/tex]is unknown, n2 = 250. Thus, the test statistic is z =[tex](75%-69%)/(sqrt[72%(1-72%)((1/n1)+(1/250))]) = 0.41.[/tex]

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The mean of the sampling distribution of means will be equal to the mean of the population from which the samples were drawn when the sampling distribution is unbiased.

The unbiased sampling distribution of means is one in which the sample means are drawn such that their average equals the population mean. Therefore, an unbiased sample should be representative of the population mean.The sampling distribution is a statistical term that refers to the probability distribution of a given random sample of size n that is taken from the population's larger dataset.

The distribution of the statistics collected from different samples is known as the sampling distribution. The mean of the sampling distribution is equal to the population mean. Sampling distribution provides insight into the sample data's variation, which can be used to make population inferences.

The mean of the sampling distribution of means is also known as the expected value of the sampling distribution. It is the mean of the population, which is equal to the mean of the sampling distribution of means. If the sample means are unbiased, the mean of the sampling distribution of means equals the population mean. The central limit theorem states that, as the sample size increases, the sampling distribution of means approaches a normal distribution with a mean equal to the population mean.

The mean of the sampling distribution is a critical statistic in inferential statistics because it aids in determining the statistical significance of the sample. If the sample mean is significantly different from the population mean, the results of the test can be used to reject or accept the null hypothesis.

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The correct answer is 69 percent.

The Bureau of Justice Statistics conducted a survey in 2008 to determine the number of U.S. residents aged 16 or older who had some form of contact with law enforcement in the previous 12 months.

The survey found that approximately 26.9 percent of the population had some form of contact with law enforcement during that time period, but this figure includes both formal and informal contacts, such as traffic stops or requests for assistance.

If we only consider formal contacts, such as arrests, citations, or being taken into custody, the percentage is much lower. According to the same survey, only about 1.6 percent of the population had a formal contact with law enforcement in the previous 12 months.

Therefore, the correct answer to the question "what percentage of U.S. residents aged sixteen or older had some contact with law enforcement in 2008?" depends on whether formal or informal contacts are being considered. If we include informal contacts, the answer is 26.9 percent. If we only consider formal contacts, the answer is 1.6 percent.

Neither 6.9 percent nor 16.9 percent are accurate answers. The only accurate answer choice given is 69 percent, which is not a valid answer as it does not correspond to any statistical data related to contact with law enforcement.

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Thus, the total length of lap covered to get the seven different obstacles is found as: 52 units.

the Pythagorean theorem is used to calculate the distance between two locations using the distance formula. The Pythagorean theorem can be rewritten as d = √((x2 - x1)²+(y2 - y1)²)  to calculate the separation between any two locations.

Given data:

Points on  y-axis and an x-axis are given,

M(-3,5), F(8,5), G(8,2), H(3,2), I(3,-5), J(-8,-5), K(-8,-2), and L(-3,-2).

Starting and ending point is F.

Points lies between the starting and ending are-

F ,G, H, I, J, K, L, M, F

Total length = sum of all length

d = √((x2 - x1)²+(y2 - y1)²)

FG =  √((8 - 8)²+(2 - 5)²)

FG =  √9

FG =  3

GH =  √((8 - 3)²+(2 - 2)²)

GH  =  √25

GH =  5

HI =  √((3 - 3)²+(2 + 5)²)

HI  =  √49

HI  =  7

IJ =  √((3 + 8)²+(-5 + 5)²)

IJ =  √121

IJ =  11

JK =  √((-8 + 8)²+(-2 - 5)²)

JK =  √9

JK =  3

KL =  √((-8 + 3)²+(-2 + 2)²)

KL =  √25

KL =  5

LM =  √((-3 + 3)²+(-2 - 5)²)

LM =  √49

LM =  7

MF =  √((8 + 3)²+(+5 - 5)²)

MF =  √121

MF =  11

Total length = 3 + 5 + 7 + 11 + 3 + 5 + 7 + 11

Total length = 52 units

Thus, the total length of the lap covered to get the seven different obstacles is found as: 52 units.

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According to the question the enlarged design requires 450 feet of lights.

Design is the process of creating a plan or solution to a problem. It involves identifying users’ needs and creating a product, service, or system that meets those needs. Designers must consider how their solutions will function, how it will look, and how people will interact with it. Design thinking is a creative process that involves research, brainstorming, prototyping, and testing. Good design can improve user experience, increase engagement, and help businesses achieve their goals.

Let's assume the original design is X feet.
The enlarged design is 2X feet.
Therefore, the scale factor is 2.
The original design requires 225 feet of lights.
We can use the scale factor to calculate the amount of lights required for the enlarged design.
225 * 2 = 450 feet
Therefore, the enlarged design requires 450 feet of lights.

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Complete Question:

a)  The radius of the circle is r = 18 cm, b)  angle AOC is a right angle, which is π/2 radians, c)  the area of the shaded region is 125.66 cm², d)  the perimeter of the shaded region is  57.85 cm.

A circle is a two-dimensional geometric shape that is defined as the set of all points in a plane that are at a constant distance from a given point in the plane, called the center of the circle. The distance between the center of the circle and any point on the circle is called the radius of the circle. Alternatively, the diameter of a circle is the distance across the circle passing through the center, and it is twice the length of the radius.

A circle has several important properties, including:

Circumference: The circumference of a circle is the distance around its outer edge. It is calculated using the formula C = 2πr, where π (pi) is a mathematical constant approximately equal to 3.14 and r is the radius of the circle.

Area: The area of a circle is the amount of space inside its boundary. It is calculated using the formula A = πr², where π (pi) is the mathematical constant approximately equal to 3.14 and r is the radius of the circle.

a) To find the radius r, we can use the Pythagorean theorem to solve for the length of segment OP, which is the height of the rectangle:

OP² + AP² = OA²

OP² + 6² = r²

OP² = r² - 6²

We can also use the fact that AC is a diameter of the circle to find the length of segment OC:

AC = 2r

36 = 2r

r = 18

Substituting this value into the equation for OP² gives:

OP² = 18² - 6²

OP² = 300

OP = 10√3

Therefore, the radius of the circle is r = 18 cm.

b) Angle AOC is a central angle of the circle that intercepts segment AC. Since AC is a diameter, angle AOC is a right angle, which is π/2 radians.

c) The shaded region is the difference between the area of segment ABC and the area of triangle AOC. The area of segment ABC is equal to the area of sector AOC minus the area of triangle AOC. The area of sector AOC is:

(1/2) r² angle AOC

Substituting r = 18 cm and angle AOC = π/2 radians gives:

(1/2) (18)² (π/2) = 81π

The area of triangle AOC is:

(1/2) OA OC sin AOC

Substituting OA = OC = r = 18 cm and AOC = π/2 radians gives:

(1/2) (18)(18) sin(π/2) = 162

Therefore, the area of the shaded region is:

81π - 162 ≈ 125.66 cm²

d) The perimeter of the shaded region is the sum of the lengths of segments AB, BC, and the arc of the circle between A and C. To find the length of the arc, we can use the formula for the length of an arc of a circle:

length of arc = radius x central angle

Substituting r = 18 cm and angle AOC = π/2 radians gives:

length of arc = 18 x (π/2) = 9π

Therefore, the perimeter of the shaded region is:

AB + BC + length of arc = 36 + 2(6) + 9π ≈ 57.85 cm.

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The circumference of Circle C is found as 53π.

In the given figure:

AD = 28 and DB = 45

∠ADB = 1/2 *∠ACB

∠ADB = 90

Applying Pythagorean theorem in ΔABD.

AB² = AD² + DB²

AB² = 28² + 45²

AB = √2809

AB = 53

Radius = 53/2

circumference of Circle C:

C = 2πr

C = 2*π* (53/2)

C =  53π

Thus, the circumference of Circle C is found as 53π.

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Answer: It is 160

Step-by-step explanation:

I just completed the test

Therefore , the solution of the given problem of surface area comes out to be the right response is option c 160 in².

Calculating how much space would be needed to fully cover the outside will reveal its overall size. The surroundings are considered when determining the same surface with a rectangular form. The surface area of something determines its overall dimensions. The amount of edges present in the space between a cuboid's four trapezoidal corners determines how much water it can hold inside.

Here,

the base's outermost boundary is:

=> Perimeter = 4s

To locate s,

=> Base  Area = s² = 64 in².

To solve for s, we obtain:

=> √(64 in²) = 8 in

We can now determine the perimeter:

=> perimeter: 4s

=> (4 * 8 inches)/(32 inches)

Finally, we can enter the numbers into the surface area formula as follows:

=>  Base Area + (1/2) x Perimeter x Slant Height

=> Surface Area Surface Area = 64 in² + (1/2) x 32 in x 6 in

=> Surface area = 64 in² + 96 in².

160 in² is the surface area.

Consequently, the cone has a surface area of 160 in².

The right response is (c) 160 in².

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Answer:

3.44 is the area of the shaded region between the square and circle

Area:

The size of a surface that can be calculated by multiplying the length by the width.

Area of square = [tex]x^{2}[/tex] , where 'x' is the side of square

Area of circle = π[tex]r^{2}[/tex] , where 'r' is the radius of circle

According to the given information:

Let the side of the square be 'A'

the radius of the circle intercepts the side of square equally

which gives us radius = A/2

so if radius is 2 , side of square will be 4

So the area of shaded region = Area of square - Area of circle

Area of shaded region = [tex]A^{2}[/tex] - π[tex][A/2]^{2}[/tex]

Area of shaded region = [tex]A^{2}[/tex]-π[tex]A^{2}[/tex]/4

Area of shaded region = [4[tex]A^{2}[/tex] - π[tex]A^{2}[/tex]]/4

Area of shaded region =[4*16 - 3.14*16]/4

Area of shaded region = 3.44[tex]unit^{2}[/tex]

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Answer:

The area of the shaded region is 3.4 square units, rounded to the nearest tenth.

Step-by-step explanation:

To calculate the area of the shaded region, we need to subtract the area of circle N from the area of the square JKLM.

The formula for the area of a circle with radius, r, is A = πr².

Given that circle N has a radius of 2 units, the area of circle N is:

[tex]\begin{aligned}\sf Area\;of\;circle\;N&=\pi \cdot 2^2\\&=4 \pi\\&=12.5663706... \; \sf square\;units \end{aligned}[/tex]

The diameter of a circle is the distance across the widest part of the circle, passing through the center, and is equal to twice the radius.

Therefore, the diameter of circle N is:

[tex]\begin{aligned}\sf Diameter\;of\;circle\;N&=2r\\&=2 \times 2\\&=4\; \sf units\end{aligned}[/tex]

The side length of square JKLM is equal to the diameter of circle N, since each side of the square is tangent to the circle.

Therefore, the side length of square JKLM is 4 units.

The formula for the area of a square with side length, s, is A = s².

Therefore:

[tex]\begin{aligned}\sf Area\;of\;square\;JKLM&=4^2\\&=4 \times 4\\&=16\; \sf square\;units\end{aligned}[/tex]

Finally, we can calculate the area of the shaded region:

[tex]\begin{aligned}\sf Area\;of\;shaded\;region&=\sf Area\;of\;square\;JKLM-Area\;of\;circle\;N\\&=16-12.5663706...\\&=3.4336293...\\&=3.4\;\sf square\;units\;(nearest\;tenth)\end{aligned}[/tex]

Therefore, the area of the shaded region is 3.4 square units, rounded to the nearest tenth.

Answer:

2

Step-by-step explanation:

To maintain an average of 79, Aldo must obtain a score of 82 in his upcoming exam.

To get the solution, let's calculate the total of the first five scores.

Total of the first five scores = 77 + 88 + 77 + 87 + 63 = 392

Now we know that there are a total of six scores, so to get the mean, we will divide the total by six.

Mean = Total/Number of ScoresTherefore, 79 = 392 + x/6

We need to find the value of x that will satisfy the above equation.

Now we will solve for x.79 = 392 + x/6

(Multiply both sides by 6) 6 * 79 = 6 * 392 + x6 * 79 = 2352 + xx = 6 * 79 - 392x = 474 - 392x = 82

Therefore, Aldo needs to score 82 on his next test to achieve an average of 79.


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Amy is picking her fall term classes, including probability 101, 102, and 103 so,

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has included probability to forecast the likelihood of certain events. The degree to which something is likely to happen is basically what probability means.

You will understand the potential outcomes for a random experiment using this fundamental theory of probability, which is also applied to the probability distribution.

a) the probability that she will get 101

P = [tex]\frac{^1C_1*^1^9C_2}{^2^0C_3}[/tex]

= 171/1140

P = 0.15

probability that she will get 101 = 0.15.

b) the probability that she will get 101 and 102.

P = [tex]\frac{1*1*18}{20!*3!(20-3)!}[/tex]

P = 18/1140

= 0.0158

probability that she will get probability 101 and probability 102 is 0.0158.

c) the probability she will get all three probability courses

P = [tex]\frac{^3C_3}{^2^0C_3}[/tex]

= 1/1140

P = 0.0009

The probability she will get all three probability courses is 0.0009.

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Complete question:

Amy is picking her fall term classes. She needs to fill three time slots, and there are 20 distinct courses to choose from, including probability 101, 102, and 103. She will pick her classes at random so that all outcomes are equally likely.

(a) What is the probability that she will get probability 101?

(b) What is the probability that she will get probability 101 and probability 102?

(c) What is the probability she will get all three probability courses?

Option a) The finding that the reputation of lawyers with the general public has declined because of advertising is NOT supported by several studies about lawyer advertising.

Lawyer advertising refers to advertising or soliciting the services of lawyers. It is designed to attract potential clients to retain their services. Lawyer advertising may involve a wide variety of mediums, including television, radio, print media, billboards, and the internet. Legal professionals may advertise their services on a wide range of platforms in order to reach as many people as possible.

According to several studies about lawyer advertising, the public considers the ads a valuable source of information. However, the public objects when advertising is invasive. The findings show that the negative effects of lawyer advertising on the reputation of lawyers with the general public are not supported by empirical data. In other words, the reputation of lawyers with the general public has not declined because of advertising.

The following are some of the other findings of several studies about lawyer advertising:

However, the public also perceives lawyer advertising as an attempt to lure them into hiring a lawyer. Lawyer advertising can increase public awareness about the availability of legal services, but it can also lead to unrealistic expectations regarding the outcome of legal disputes.

Hence option a) is correct.

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The required equation models the future cost of gasoline with price increment of 0.3% per month is given by x = 1.19(1.003)^t .

Let us consider 'x' represents the cost of gasoline.

And 't' represents the number of months since January 1, 1999.

The price of gasoline increased by 0.3% per month.

This implies,

Increased by = 0.003 times the original cost each month.

The cost of gasoline after 't' months can be modeled by,

x = 1.19(1 + 0.003)^t

Simplifying the above equation we get,

x = 1.19(1.003)^t

Therefore, the equation x = 1.19(1.003)^t models the future cost of gasoline, assuming the price of gasoline continues to increase at a rate of 0.3% per month from January 1, 1999.

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The dimensions of the box that will maximize the enclosed volume are l = √(45/2) m and h = (22.5 - l²)/2 m.

To determine the dimensions of the box that will maximize the enclosed volume if we have 45 m² of material to build a box with a square base and no top, we can use the following steps:

Step 1: Write the formula for the volume of the box.V = l²h

Step 2: Write the formula for the surface area of the box.S = 2l² + 4lh

Step 3: Substitute S = 45 m² and simplify.2l² + 4lh = 45 m²l² + 2lh = 22.5 m²h = (22.5 - l²)/2

Step 4: Substitute the value of h in the formula for the volume and simplify.V = l²[(22.5 - l²)/2]V = (22.5l² - l⁴)/2

Step 5: Take the derivative of V with respect to l.dV/dl = 45l - 2l³

Step 6: Set dV/dl = 0 and solve for l.45l - 2l³ = 0l(2l² - 45) = 0l = 0 or l = √(45/2)

Step 7: Determine if the critical point is a maximum or a minimum by taking the second derivative of V with respect to l.d²V/dl² = 45 - 6l²d²V/dl² > 0 for l = √(45/2)

Therefore, the dimensions of the box that will maximize the enclosed volume are l = √(45/2) m and h = (22.5 - l²)/2 m.

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In circle S with m∠RST= 56 and RS = 19 units, the length of arc RT ≈ 8.87 units (rounded to two decimal places).

An arc of a circle is a portion of the circumference of the circle. It is defined by two endpoints and the collection of all points on the circle's circumference that lie between these endpoints. The length of an arc is proportional to the measure of its corresponding central angle. The formula to find the length of an arc of a circle is L = (m/360) x 2πr, where L is the length of the arc, m is the measure of the central angle, and r is the radius of the circle. The symbol for an arc is a segment of the circle with a curved line over it.

We know that in a circle with radius r, the measure of the arc of a central angle with measure θ degrees is (θ/360) × 2πr units.

In circle S with center S, we are given that RS = ST = r (say) and m∠RST = 56 degrees. So, the measure of minor arc RT is also 56 degrees.

Therefore, the length of arc RT = (56/360) × 2πr = (7/45) × 2πr.

We are also given that RS = 19 units. Since RS = ST = r, we have r = 19 units.

Substituting this value of r, we get:

Length of arc RT = (7/45) × 2πr = (7/45) × 2π(19) ≈ 8.87 units (rounded to two decimal places).

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Answer:

RT= 18.57

Step-by-step explanation:

TRUST THE PROCESS

The first inequality -4 ≤ x ≤ 3 represents the values of x that fall between the two vertical lines, while the second inequality 1 ≤ y ≤ 6 represents the values of y that fall between the two horizontal lines.

An inequality is a mathematical statement that compares two quantities or expressions using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "!=" (not equal to).

Inequalities can involve variables or constants, and can be expressed in one variable or multiple variables. The solution to an inequality is the set of values that satisfy the inequality.

For example, the inequality 2x + 3 > 7 is true for values of x that are greater than 2, since if we substitute x = 2, we get 2(2) + 3 = 7, which is not greater than 7. On the other hand, if we substitute x = 3, we get 2(3) + 3 = 9, which is greater than 7, so the inequality is true for x > 2.

Inequalities have many applications in mathematics and other fields, such as economics, physics, and engineering. They are used to represent constraints in optimization problems, to model relationships between variables, and to describe ranges of possible values for a quantity or variable.

To determine the double inequalities that define the shaded region, we need to find the equations of the two boundary lines that form the sides of the shaded region.

The two vertical lines are x=-4 and x=3. The two horizontal lines are y=1 and y=6.

The shaded region is enclosed by these four lines, so the double inequalities that define it are:

-4 ≤ x ≤ 3 and 1 ≤ y ≤ 6

The first inequality -4 ≤ x ≤ 3 represents the values of x that fall between the two vertical lines, while the second inequality 1 ≤ y ≤ 6 represents the values of y that fall between the two horizontal lines. Together, they define the rectangular shaded region with vertices (-4,1), (-4,6), (3,6), and (3,1).

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Answer:

Step-by-step explanation:

First, we need to calculate the annual interest rate from the given APR.

APR = 2.25%

Daily interest rate = 2.25% / 365 = 0.00616438

Now, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A = the final amount

P = the principal (initial amount)

r = the annual interest rate (as a decimal)

n = the number of times the interest is compounded per year

t = time in years

In this case, P = $2,000, r = 0.00616438, n = 365 (daily compounding), and t = 4.

A = 2000(1 + 0.00616438/365)^(365*4)

A = 2000(1.00616438)^1460

A = $2,388.34 (rounded to the nearest cent)

Therefore, the answer is option D) $2,388.34.

Answer:

Sure, here are the numbers arranged from greatest to least

Step-by-step explanation:

Order from greatest to least

1.3, 4.5%, 1/3, -4/5, -0.04, -21.5%

Answer:

From the greatest to least

Step-by-step explanation:

1.3, 4.5%, 1/3, -4/5, -0.04, -21.5%

You can identify which number is greater than other by using a number line.

What is a number line?

A number line is what a math student can use to find the answer to addition and subtraction questions. A straight line, theoretically extending to infinity in both positive and negative directions from zero, that shows the relative order of the real numbers.

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Pls Brainliest...

Answer:

[tex]y = \frac{1}{7} x + 5[/tex]

Step-by-step explanation:

[tex]x - 7y = - 21[/tex]

[tex] - 7y = - x - 21[/tex]

[tex]y = \frac{1}{7} x + 3[/tex]

Answer
Y. Answer:

y=30

Step-by-step explanation:

(3)^2 equals 9, so the first blank is 9.

You then multiply it by the 2, so second blank is 18.

18+15=33

33-3=30=y

Answer:

30

Step-by-step explanation:

first space should be 9 since 3² is 9

second space should be 18 since 2×9=18

final space should be 30 since 18+15 is 33-3=30

Answer:

We know that there were three large tables with an equal number of guests seated at each table. Let's represent the number of guests at each of these large tables with the variable N.

So, the total number of guests seated at the large tables is 3N.

In addition to these guests, there were 7 late arriving guests seated at a smaller table.

Therefore, the total number of guests in all is:

3N + 7

We also know that the total number of guests in all is 37. So we can set up an equation to represent this:

3N + 7 = 37

Simplifying this equation, we get:

3N = 30

Dividing both sides by 3, we get:

N = 10

So, there were 10 guests seated at each of the 3 large tables.

Answer:

Step-by-step explanation:

the minimum mark the student should obtain is 32

ans- <CDF+<FDE=90(Being right angle)

or, 2x+x+9=90

or, 3x+9=90

or, 3x=90-9

or, 3x=81

or, x=81/3

:.x=27,,

A and B are acute angles.

C and ZC are obtuse angles.

D and ZD are right angles.

A and B are acute angles (less than 90 degrees), and C and D are obtuse angles (greater than 90 degrees).

The measures of angles A, B, and ZA, ZB are less than 90 degrees, so they are acute angles.

The measure of angle C and angle ZC is greater than 90 degrees, so they are obtuse angles.

The measure of angle D and angle ZD is exactly 90 degrees, so they are right angles.

Therefore, the classification of the angles in the quadrilateral is:

A and B are acute angles.

C and ZC are obtuse angles.

D and ZD are right angles.

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The common difference of the arithmetic sequence is d = 3.

What is an Arithmetic sequence?

An arithmetic progression, also referred to as an arithmetic sequence, is a set of numbers where each term following the first is derived by adding a fixed constant number to the term before it.

To solve this problem, we can use the formula for the nth term of an arithmetic sequence. The formula is as follows:

an = a1 + (n - 1)d

Where an is the sequence's nth term, a1 is the first term, d is a common difference, and n is the number of terms we want to discover:

We know that a1 = 10 and a4 = 19. By entering these numbers into the formula, we obtain:

          a4 = a1 + (4 - 1)d

          19 = 10 + 3d

In order to find d, we can divide by 3 after subtracting 10 from both sides:

          9 = 3d

          d = 3

Therefore, the common difference of the arithmetic sequence is d = 3.

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