Help with math...i will give brainlys

If a credit card advertises an annual interest rate of 23%, then the equivalent monthly interest rate is 1.74%

The annual interest rate = 23%

The credit card interest rate the amount you have to pay to borrow the money from them.  The credit card interest rate is usually expressed in yearly rate. This is called annual percentage rate.

The monthly interest rate = \((1+\frac{23}{100})^{(1/12)}\)

= \((1+0.23)^{(1/12)}\)

= 1.0174

Then,

= (1.0174-1) × 100%

Subtract the terms first

= 0.0174 × 100%

Multiply it

= 1.74%

Hence, if a credit card advertises an annual interest rate of 23%, then the equivalent monthly interest rate is 1.74%

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Answer:

y = -3x + 7

Step-by-step explanation:

Answer:

the Horizontal Aysmptotes is: 4

Range is: (♾,4)

X intercept: None

Y intercept: (0,5)

Decreasing.

Step-by-step explanation:

Hope that will help you

Answer:

10

Step-by-step explanation:

y2-y1/x2-x1. subtract the two and reduce the fraction

Answer:

63in

Step-by-step explanation:

In constructing a 95 percent confidence interval, if you increase n to 4n, the width of your confidence interval will be reduced by a factor of approximately 1/2, assuming other things remain the same.What is a confidence interval?A confidence interval is a range of values that is likely to contain an unknown population parameter with a certain degree of confidence.

It is frequently used to indicate the accuracy of the estimate. A 95% confidence interval for a population parameter, for example, is a range of values within which we can be 95% confident that the true population parameter falls. Therefore, when you double the sample size, the t value decreases, resulting in a narrower interval. Increasing the sample size four times reduces the width of the confidence interval by a factor of approximately 1/2.

The length of the confidence interval is proportional to the standard error, which is inversely proportional to the square root of the sample size. As a result, increasing the sample size lowers the standard error, which in turn results in a narrower confidence interval.

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Answer:

  B.  False

Step-by-step explanation:

You want to know if it is true that when each of seven persons in a group shakes hands with each of the other six persons, a total of forty-two handshakes occurs.

The count of 42 handshakes includes every one of 7 shaking hands with each of the remaining 6, without regard to whether they met before.

The count will include A shaking hands with B, and B shaking hands with A. That handshake will be counted twice, so the number 42 overstates the actual number of handshakes by a factor of 2.

It is false that there will be 42 handshakes. (There will be only 21.)

The value of csc x=-13/5.

Given that the sin x=-5/13 and x∈[3π/2 , 2π).

A trigonometric function is a real function that relates the angle of a right triangle to the ratio of the lengths of the two sides. The basic functions are sin, cos, tan, cot, sec, csc.

The given function is sin x=-5/13.

As we all know that sin x=1/csc x or csc x=1/sin x.

As it is given that x∈[3π/2 , 2π) that means x lies in fourth quadrant and in fourth quadrant sin and csc is negative in it.

So, we will apply this identity csc x=1/sin x, we get

csc x=1/(-5/13)

csc x=-13/5

And it also lies in x∈[3π/2 , 2π).

Hence, the value of csc x when sin x=-5/13 and x∈[3π/2 , 2π) is csc x=-13/5.

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The meaning of the y-intercept in the context of the problem is D. The initial value of the investment is $600.

From the information, the growth of the savings plan per year, x, can be represented by the exponential function f(x) = 600(1.04)x.

Here, the meaning of the y-intercept in the context of the problem is the initial value of the investment is $600.

In conclusion, the correct option is D.

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To approximate the value of π using the Leibniz method, you can write a Python program that calculates the sum of the series up to a certain number of terms. The more terms you include in the series, the closer the approximation will be to the actual value of π.

The Leibniz method, also known as the Leibniz formula for π, is an infinite series that converges to π/4. The formula is given by:

π = 4(1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + ...)

To approximate π, you can calculate the sum of the series up to a certain number of terms. The more terms you include, the more accurate the approximation will be.

In Python, you can write a program that iterates through the terms of the series and accumulates the sum. Here's an example of how you can implement it:

def approximate_pi(num_terms):

   pi = 0

   sign = 1

for i in range(1, num_terms*2, 2):

       term = sign * (1/i)

       pi += term

       sign *= -1

   return pi * 4

num_terms = 100000  # Choose the number of terms for the approximation

approximation = approximate_pi(num_terms)

In this example, we define the approximate_pi function that takes the number of terms as an argument. The function iterates from 1 to num_terms*2 with a step size of 2, representing the denominators of the series. The sign alternates between positive and negative to include the alternating addition and subtraction. Finally, we return the calculated sum multiplied by 4 to obtain the approximation of π.

By increasing the value of num_terms, you can achieve a more accurate approximation of π. However, keep in mind that the Leibniz method converges slowly, so a large number of terms may be needed for a precise approximation.

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Assumptions: For the purpose of this exercise, let's assume that we are analyzing defects in a manufacturing process. We will invent data for five different categories of defects and their corresponding frequencies. the cumulative percentage for each category, we find that the top 20% category of defects is Category A.

a. Based on the invented data, the histogram analysis reveals the following distribution of defects and their frequencies:

Category A: 50 defects

Category B: 30 defects

Category C: 20 defects

Category D: 15 defects

Category E: 10 defects

To identify the top 20% of the category of defects contributing to 80% of the total volume, we calculate the cumulative frequency. Starting with the category with the highest frequency, we add up the frequencies until we reach 80% of the total. In this case, Category A contributes the highest frequency, and its cumulative frequency is 50. The total number of defects is 125 (50 + 30 + 20 + 15 + 10). By calculating the cumulative percentage for each category, we find that the top 20% category of defects is Category A.

b. Performing a Root Cause Analysis for the Top Contributing Factor (Category A) using the 5-Why method or Fishbone diagram helps determine the underlying causes. We identify potential factors such as equipment malfunction, operator error, insufficient training, or process variability. By asking "why" repeatedly, we dig deeper into each cause to uncover the root cause.

c. Based on the analysis, we develop a corrective action plan and preventive action plan. For example:

Corrective Action Plan: Assign qualified technicians to regularly inspect and maintain the equipment, conduct additional training for operators to enhance their skills, and implement process control measures to reduce variability.

Preventive Action Plan: Establish a preventive maintenance schedule for equipment, implement a comprehensive training program for all operators, and conduct regular process audits to identify and address potential issues proactively.

The corrective and preventive action plans should clearly define the tasks, responsibilities, and timelines. The maintenance department may be responsible for equipment maintenance, the training department for operator training, and the quality department for process audits. Regular monitoring and evaluation of the action plans should be conducted to ensure effectiveness and make any necessary adjustments.

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Answer:

A square

Step-by-step explanation:

The correct option is OA. y+4= -3(x-3). L 4.6.3 Test (CST): Linear Equations Solution: We are given that a line passes through (3,-4) and has a slope of -3.

We will use point slope form of line to obtain the equation of liney - y1 = m(x - x1).

Plugging in the values, we get,y - (-4) = -3(x - 3).

Simplifying the above expression, we get y + 4 = -3x + 9y = -3x + 9 - 4y = -3x + 5y = -3x + 5.

This equation is in slope intercept form of line where slope is -3 and y-intercept is 5.The above equation is not matching with any of the options given.

Let's try to put the equation in standard form of line,ax + by = c=> 3x + y = 5

Multiplying all the terms by -1,-3x - y = -5

We observe that option (A) satisfies the above equation of line, therefore correct option is OA. y+4= -3(x-3).

Thus, the correct option is OA. y+4= -3(x-3).

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Answer:

Here is your your answer

Step-by-step explanation:

when ever we solve algebraic multiplication/ division so we have to apply - sign

Hope it is useful

Answer:

Step-by-step explanation:

3     1

9     3

15    5

21     7

Answer:

1 gallon = 16 cups

3 cups per person

32 people

32x3=96/16=6

she needs 6 gallons

Answer:I think its A.

Step-by-step explanation:

I'm too lazy too explain you got your answer please be happy

The problems on scientific notation are solved as below.

Scientific notation is a way of expressing numbers which are way too large or way too small in a simpler form using exponents or decimals or both.

When adding or subtracting, convert the exponent part same for both numbers.

When multiplying, add the exponents and when dividing, subtract the exponents.

#1: 9 x 10-5 / 9.24 x 10-6 = (9 / 9.24) × 10⁽⁻⁵⁻⁻⁶⁾ = 0.974 × 10¹ = 9.74

#2: (5 x 10⁵) - (8 x 10⁴) = (50 × 10⁴) - (8 × 10⁴) = (50 - 8) × 10⁴ = 42 × 10⁴

#3: (5 x 10⁻⁷) - (3 x 10⁻⁹) = (500 × 10⁻⁹) - (3 × 10⁻⁹) = (500 - 3) × 10⁻⁹ = 497 × 10⁻⁹

#4: (7 x 10⁸) (9 x 10⁶) = (7 × 9) × 10⁸⁺⁶ = 63 × 10¹⁴

#5: (4 x 10⁶) - (2 x 10⁵) = (40 × 10⁵) - (2 × 10⁵) = (40 - 2) × 10⁵ = 38 × 10⁵ = 3800000

#6: 17 x 10⁸ / 4 x 10⁵ = (17 / 4) × 10⁸⁻⁵ = 4.25 × 10³ = 4250

#7: (9 x 10⁴) + (7 x 10) = (9000 × 10) + (7 × 10) = (9000 + 7) × 10 = 90070

#8: (6.24 x 10⁻²) + (7.1 x 10⁻³) = (62.4 × 10⁻³) + (7.1 × 10⁻³) = (62.4 + 7.1) × 10⁻³ = 69.5 × 10⁻³ = 0.0695

#9: (11 x 10⁴) (7 x 10²) = (11 × 7) × 10⁴⁺² = 77 × 10⁶

#10: 27 x 10⁴ / 10 x 10⁸ = (27 / 10) × 10⁴⁻⁸ = 2.7 × 10⁻⁴

#11: (7 x 10⁷) + (4 x 10⁶) = (70 × 10⁶) + (4 × 10⁶) = (70 + 4) × 10⁶ = 74 × 10⁶

Hence the problems related to scientific notation are solved.

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The ratio of the number of students who joined the class to the number of students who were initially in the class is 2:1.

Age ratio refers to the comparison of the number of individuals in different age groups in a population. It is often expressed as a ratio or percentage of the number of people in a particular age group to the total population or the number of people in another age group.

Given by the question.

Now, when the group of students with an average age of 16 years joins the class, the average age of all the students becomes 17 years. This means that the total age of all the students in the class would now be 17 times the total number of students.

Let "y" be the number of students who joined the class. Then, the total number of students in the class after they joined would be x + y.

So, we have two equations:

18x = 17(x+y) (because the total age of all the students remains the same before and after the group joins)

16y = (x+y)*1 (because the average age of the new group is 16)

Simplifying the above equations, we get:

x = 17y

x = 34y

Equating both the equations, we get:

17y = 34y

y = 2

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Answer:

NO it is not

Step-by-step explanation:

To check that, we will need to substitute the value of each of the coordinates in each of the equations

10x-y = -6

substitute 1 for x and 6 for y

we have this as;

10(1)-6 = 4

Outrightly, we can see that the given point is not a solution to the given system of equations

however, let us confirm for the second

We have this as;

-10(1) + 5(6)

= -10 + 30 = 20

so we can confirm that it does not work for any of the two and our answer is NO

Answer:

The difference in the effectiveness of the new treatment versus the standard treatment may be due to chance, and further studies may be needed to determine the effectiveness of the new treatment.

Step-by-step explanation:

To determine if the difference in the number of patients reporting reduced pain is statistically significant, we can use a hypothesis test.

The null hypothesis is that there is no difference between the two treatments in terms of the proportion of patients who report reduced pain after half an hour. The alternative hypothesis is that there is a difference between the two treatments.

We can use a two-sample proportion test to compare the proportions of patients reporting reduced pain in the two groups.

The test statistic is calculated as:

z = (p1 - p2) / sqrt(\(\sqrt{(p_hat * (1 - p_hat) / n1) + (p_hat * (1 - p_hat) / n2)}\))

where p1 and p2 are the proportions of patients in the two groups reporting reduced pain, p_ hat is the pooled proportion (calculated as the total number of patients reporting reduced pain divided by the total number of patients), and n1 and n2 are the sample sizes.

In this case, we have:

p1 = 50/65 = 0.769

p2 = 40/60 = 0.667

p_ hat = (50 + 40) / (65 + 60) = 0.672

n1 = 65

n2 = 60

Substituting these values into the formula, we get:

z = (0.769 - 0.667) / sqrt((0.672 * (1 - 0.672) / 65) + (0.672 * (1 - 0.672) / 60))

= 1.412

Using a standard normal distribution table or calculator, we can find the probability of obtaining a z-value of 1.412 or greater, assuming the null hypothesis is true. This is the p-value of the test.

The p-value turns out to be approximately 0.078, which is greater than the commonly used significance level of 0.05. This means that there is not enough evidence to reject the null hypothesis and we cannot conclude that the difference in the number of patients reporting reduced pain is statistically significant.

Therefore, the difference in the effectiveness of the new treatment versus the standard treatment may be due to chance, and further studies may be needed to determine the effectiveness of the new treatment.

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Let's look at the answer choices to see what the questions wants us to do with the data

 ⇒ essentially they compare Carol's mean or median to herself or to

 Anna's mean or media

    ⇒ therefore we should calculate Carol's mean, median and Anna's

    mean, median

Before we start calculating, let's define what is the mean and median

Let's calculate:

         ⇒ Carol's data ordered: 20, 30, 45, 60, 70

               \(Mean = \frac{20+30+45+60+70}{5} = \frac{225}{5}=45\\ \\Median: 45\)

         ⇒ Anna's data ordered: 30, 35, 45, 60, 65

               \(Mean = \frac{30+ 35+ 45+ 60+ 65}{5} =\frac{235}{5} =47\\\\Median: 45\\\)

Now using the data, let's compare:

first choice: Carol's mean is equal to her median--> correct

second choice: Carol's mean is not greater than Anna's mean--> incorrect

third choice: Anna's median isnot greater than her mean --> incorrect

fourth choice: Anna's mean is not equal to Carol's mean --> incorrect

Hope that helps!

Answer:

$19.15

Step-by-step explanation:

$1=0.626

$1/0.626=£1

$11.99=$11.99/0.626

=$19.15

Answer:

Step-by-step explanation:

 £ 0.626  =$ 1

£1 = $ \(\frac{1}{0.625}\)

£ 11.99 = \(11.99*\frac{1}{0.625}= \frac{11.99*1000}{0.625*1000}\\\\\)

           \(= \frac{11990}{626}\\\\\)

          = $ 19.15

19.15 - 16.95 = $2.2

Jane pays $2.20  more dollars that George

The answer to the question can be obtained as follows:Given, Dividend after 1 year, D1 = $3.11Price of stock today, P0 = $65.62Expected price after 1 year, P1 = $72.00Expected price after 2 years, P2 = $75.99Dividend after 2 years, D2 = ?The dividend discount model can be used to solve the problem since the expected dividend is paid annually.

D1 = D0(1 + g) where g is the growth rate of the dividend.Using the formula for the present value of a stock, we have

P0 = D0 / (1 + r)^1 + D1 / (1 + r)^2 + P1 / (1 + r)^2

where r is the expected return on the stock.Substituting the values,P0 = 3.11 / (1 + r)^1 + D2 / (1 + r)^2 + 72.00 / (1 + r)^2....(1)Solving for the expected dividend in 2 years,D2 = P0(1 + r)^2 - 3.11(1 + r) - 72(1 + r)^2 / (1 + r)^2....(2)We can now substitute the values given to obtainD2 = 75.99(1 + r)^2 - 3.11(1 + r) - 72(1 + r)^2 / (1 + r)^2From this, we get a quadratic equation to solve for r.

75.99(1 + r)^2 - 3.11(1 + r) - 72 = 0

Solving the equation we get two roots: -1.13 and 0.72 since the expected rate of return cannot be negative, we use the positive value i.e. 0.72.Substituting the value of r into (2), we obtain:D2 = $6.16Therefore, the expected dividend after 2 years is $6.16. Option C is, therefore, correct.

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The quantities X and Y are proportional as y = rx  then the constant of proportionality r is 1/9.

Firstly, there is proportional relationship.

Two values x  and  y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called constant of proportionality.

WE have been given quantities X and Y are proportional

y = rx

Where r is constant of proportionality.

Then x = 45 and y = 5

Thus,

y = rx

5 = 45r

Now divide by 45 on both side;

r = 5/45

r = 1/9

Therefore, the constant of proportionality r is 1/9.

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Answer: 4 9/20

Step-by-step explanation: Since it is 20km/h, and it is 25km, you can find 1/4th of 20, which is 5, and add it because 25 is 1 1/4 of 20, he traveled 1 1/4 hours on the first session, and then he goes and does 80km. same thing, exept it is a lot bigger than 25km/h, and the fact that the cyclist is faster by 5km/h. so then, you can multiply to get the closest number which is not greater than 80, which is 75. so we know it is around 3 hours, so since it is 5 km, and 25 km is faster than 20km, it is going to be 1/5th of an hour extra. so 3 1/5 hours + 1 1/4 hours is 4 9/20. I cannot simplify because it is already a mixed number, and there is no LCM between 9 and 20. so that's it.

Sorry if I extremely overexplained.

The correct property of the quadratic parent function is given by:

B. Its vertex is at the origin.

The quadratic parent function is modeled by:

y = x².

It has the vertex at the origin and increases to the left and to the right, into quadrants I and II, forming a function that is graphed by a parabola.

Hence the correct option regarding a property of the quadratic parent function is given by:

B. Its vertex is at the origin.

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Answer:                                                                         1

                                                                                     4

244+6=300  [its a simple addition right?]                 3

brainliest?                                                                      J

                                                                                       E

                                                                                       N

                                                                                      <3   :)

Answer:

\(slope = 1 \)

Step-by-step explanation:

We can see that the graph cuts the x axis at , (-1,0) and y axis at (0,1) . So we can find the slope as ,

\(\implies slope = \dfrac{y_2-y_1}{x_2-x_1}\\\\\implies slope = \dfrac{ 1-0}{0+1} \\\\\implies\boxed{\boxed{ slope = 1 }}\)