An initial amount of $3600 is invested in an account at an interest rate of 8% per year, compounded continuously. Assuming that no withdrawals are made, find the amount in the account after three years.

Answers

Answer 1

The formula for calculating the balance of an account with continuous compounding is given by A = Pe^(rt), where A is the final amount, P is the initial principal balance, r is the annual interest rate (expressed as a decimal), t is the time in years, and e is the mathematical constant approximately equal to 2.71828.

In this case, the initial principal balance P is $3600, the annual interest rate r is 8% or 0.08 as a decimal, and the time t is 3 years. Plugging these values into the formula gives us:

A = 3600 * e^(0.08 * 3)

Evaluating this expression gives us a final amount of approximately $4293.25 in the account after three years.


Related Questions

find the height of the building when x = 3m, y = 6m, and d = 6m

Answers

Answer:

To find the height of the building, we can use the following formula:

height = y(d-x)/x

Substituting the given values, we get:

height = 6(6-3)/3

height = 6(3)/3

height = 6 meters

Therefore, the height of the building is 6 meters.

A company’s cereal boxes advertise that 9.65 ounces of cereal are contained in each box. In fact, the amount of cereal in a box follows an approximately normal distribution with mean μ = 9.70 ounces and standard deviation σ = 0.03 ounce. Let x-bar be the sample mean amount of cereal in 5 randomly selected boxes.

Shape: Approximately normal because the population distribution is approximately normal

Center: μ x-bar = 9.70 ounces.

Variability: σ x-bar = 0.013 ounces.

(b) What is the probability that the mean amount of cereal x-bar in 5 randomly selected boxes is at most 9.65?

Round your answer to 5 decimal places.

Answers

The probability that the mean amount of cereal x-bar in 5 randomly selected boxes is at most 9.65 is 0.0001.

How to calculate the probability

Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true.

Mean μ=9.70

Sample size=n=5

standard deviation=σ = 0.03

Now in order to use the table we have to to figure out z value.

z=(x-μ)/σ

z=(9.65-9.70)/0.0134

z=-3.73

From the probability index tables, so P(z≤-3.73)=0.0001

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please help 20 points

Answers

The area of a rectangle is length times width.

1. Length= 7 :: Width= 3 :: Area=21 sq units
2. Length= 4 :: Width= 2 :: Area= 8 sq units
3. Length= 12 :: Width= 2 :: Area= 24 sq units
4. Length= 6 :: Width= 4 :: Area= 24 sq units
5. Length= 7 :: Width= 6 :: Area= 42 sq units (the width was cut off on the picture though, so i’d double check that side)
6. Length= 14 :: Width= 1 :: Area= 14 sq units

What are answers to these questions?
1. f is concave up on the intervals = ?
2. f is concave down on the intervals = ?
3. The inflection points occur at x = ?

Answers

f(x) is concave up on the interval (-∞, √(6/7)) U (√(6/7), ∞),f(x) is concave down on the interval (-√(6/7), √(6/7)) ,The inflection points occur at x = -√(6/7) and x = √(6/7).

What is inflection Point?

An inflection point is a point on a curve where the concavity changes, from concave up to concave down or vice versa, indicating a change in the curvature of the curve.

According to the given information:

To determine the intervals where f(x) is concave up or down, we need to find the second derivative of f(x) and determine its sign.

First, we find the first derivative of f(x):

f'(x) = (14x)/(7x²+6)²

Then, we find the second derivative of f(x):

f''(x) = [28(7x²+6)²- 28x(7x²+6)(4x)] / (7x²+6)^4

Simplifying the expression, we get:

f''(x) = 28(42x² - 72) / (7x^2+6)³

To determine where f(x) is concave up or down, we need to find the intervals where f''(x) is positive or negative, respectively.

Setting f''(x) = 0, we get:

42x² - 72 = 0

Solving for x, we get:

x = ±√(6/7)

These are the possible inflection points of f(x). To determine if they are inflection points, we need to check the sign of f''(x) on both sides of each point.

We can use a sign chart to determine the sign of f''(x) on each interval.

Intervals where f''(x) > 0 are where f(x) is concave up, and intervals where f''(x) < 0 are where f(x) is concave down.

Here is the sign chart for f''(x):

x  |   -∞   | -√(6/7) | √(6/7) |   ∞

f''(x)|   -    |     +      |     -     |   +

From the sign chart, we can see that:

a) f(x) is concave up on the interval (-∞, √(6/7)) U (√(6/7), ∞).

b) f(x) is concave down on the interval (-sqrt(6/7), √(6/7)).

c) The inflection points occur at x = -√(6/7) and x = √(6/7).

Therefore, the open intervals where f(x) is concave up are (-∞, -√(6/7)) and (√(6/7), ∞), and the open interval where f(x) is concave down is (-√(6/7), √(6/7)). The inflection points occur at x = -√(6/7) and x = √(6/7).

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The f(x) is concave up on the interval (-∞, √(6/7)) U (√(6/7), ∞),f(x) is concave down on the interval (-√(6/7), √(6/7)) ,The inflection points occur at x = -√(6/7) and x = √(6/7).

What is inflection Point?

An inflection point is a point on a curve where the concavity changes, from concave up to concave down or vice versa, indicating a change in the curvature of the curve.

According to the given information:

To determine the intervals where f(x) is concave up or down, we need to find the second derivative of f(x) and determine its sign.

First, we find the first derivative of f(x):

f'(x) = (14x)/(7x²+6)²

Then, we find the second derivative of f(x):

f''(x) = [28(7x²+6)²- 28x(7x²+6)(4x)] / (7x²+6)^4

Simplifying the expression, we get:

f''(x) = 28(4x² - 72) / (7x^2+6)³

To determine where f(x) is concave up or down, we need to find the intervals where f''(x) is positive or negative, respectively.

Setting f''(x) = 0, we get:

42x² - 72 = 0

Solving for x, we get:

x = ±√(6/7)

These are the possible inflection points of f(x). To determine if they are inflection points, we need to check the sign of f''(x) on both sides of each point.

We can use a sign chart to determine the sign of f''(x) on each interval.

Intervals where f''(x) > 0 are where f(x) is concave up, and intervals where f''(x) < 0 are where f(x) is concave down.

Here is the sign chart for f''(x):

x  |   -∞   | -√(6/7) | √(6/7) |   ∞

f''(x)|   -    |     +      |     -     |   +

From the sign chart, we can see that:

a) f(x) is concave up on the interval (-∞, √(6/7)) U (√(6/7), ∞).

b) f(x) is concave down on the interval (-sqrt(6/7), √(6/7)).

c) The inflection points occur at x = -√(6/7) and x = √(6/7).

Therefore, the open intervals where f(x) is concave up are (-∞, -√(6/7)) and (√(6/7), ∞), and the open interval where f(x) is concave down is (-√(6/7), √(6/7)). The inflection points occur at x = -√(6/7) and x = √(6/7).

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2. Ramiro has accepted three credit card invitations and now has three cards with limits of $7,000, $5,000, and $9,500. He currently has these cards charged up to 75 percent of his limit. How much does he owe?​

Answers

Ramiro has three credit cards with limits of $7,000, $5,000, and $9,500, respectively. Assuming he charged each of them up to 75 percent of its limit, the amount he owes on each card is:

Card 1: 75% of $7,000 = $5,250

Card 2: 75% of $5,000 = $3,750

Card 3: 75% of $9,500 = $7,125


To calculate the total amount Ramiro owes, we add up the amounts he owes on each card: $5,250 + $3,750 + $7,125 = $16,125

Therefore, Ramiro currently owes a total of $16,125 on his three credit cards.

in triangle rst r=6 s=10 and t=14.find the measure of the largest angle to the nearest degree and the length of the altitude from S to the three significant digits .Write your answers in the answer box provided below.

Answers

Measure of angle  ∠R = 55° , Measure of ∠S = x+10 =55+10 = 65°, Measure of ∠T = x+5= 55 + 5 =60°

What is a triangle?

Recall that a triangle is a three-sided polygon that consists of three edges and three vertices.

Since we have given that RST is a triangle,

Angle S is 10° greater than angle R and

angle T us 5° less than Angle S

Let the measure of ∠R be 'x'.

Let the measure of ∠S be 'x+10'

Let the measure of ∠T be 'x+10-5'='x+5'

As we know that "Sum of all angles in triangle is 180°.

So, it becomes,

∠R + ∠S + ∠T =180°

x + x + 10 + x + 5 = 180

3x +15 = 180

3x = 180-15

3x = 165

x = 165/3

x =55

So, Measure of ∠R = 55°

Measure of ∠S = x+10 =55+10 = 65°

Measure of ∠T = x+5= 55 + 5 =60°

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Find the amount accumulated after
investing a principle P for t years and an
interest rate compounded twice a year.
P = $100 r = 3% t= 5 k = 2
Hint: A = P(1 + E)kt
A = $[?]

Answers

After five years of investing $100 at a 3% annual interest rate compounded twice, the total amount is $116.18.

What is principle?

The whole sum borrowed (or invested), exclusive of interest and dividends.

What is compound interest?

The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest. Compound interest is commonly abbreviated C.I. in mathematics.

The formula for the amount A accumulated after investing a principle P for t years at an annual interest rate r compounded k times per year is:

A = P * [tex](1 + r/k)^{(k*t)}[/tex]

Substituting the given values into this formula, we have:

A = $100 *[tex](1 + 0.03/2)^(2*5)[/tex]

A = $100 * [tex](1 + 0.015)^{10}[/tex]

A = $100 * 1.161834...

A = $116.18 (rounded to the nearest cent)

Therefore, the amount accumulated after investing a principle of $100 for 5 years at an interest rate of 3% compounded twice a year is $116.18.

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Last week, Kristen spent 4 hours gardening over a period of 7 days. She spent the same amount of time gardening each day.About how much time did she spend gardening each day last week?

A.less than 1 hour
B.between 1 and 2 hours
C.between 2 and 3 hours
D.between 4 and 7 hours

Answers

We can see that the choice falls within the range of (A) less than 1 hour. Therefore, the answer is (A), Kristen spends less than 1 hour .

What does "unitary method" mean?

Finding the value of a single unit using the unitary technique allows us to determine the value of the necessary number of units based on this value.

To find out approximately how much time Kristen spent gardening each day, we can divide the total time she spent gardening by the number of days she gardened.

Total time = 4 hours

Number of days = 7

So, Kristen spent approximately 4/7 = 0.57 hours or about 34 minutes each day gardening.

Since the answer choices are in ranges, we can see that this falls within the range of (A) less than 1 hour. Therefore, the answer is (A).

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please help me with this pentomino question.

Answers

a. There are twelve unique pentominos possible in all.

b. In total, only 6 pentominos have the refection symmetry.

What is a pentomino?

A pentomino is an order 5 polyomino, or a plane polygon formed of 5 identical squares joined edge to edge. This is just linked with a certain arrangement of squares.

a. There are twelve unique pentominos possible in all which on reflection and rotation can create multiple more pentominos.

b. In total, 6 pentominos have refection symmetry which means that now the total pentominos are 18 of which 6 have reflection symmetry.

Hence, the required solution has been obtained.

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Test the following hypotheses by using the given sample information and α = .01. Assume the populations are normally distributed.
H0 : σ2 =σ2 Ha:σ2 >σ2 1212
n1 =10, n2 =11, s2 =562, s2 =1013 12

Answers

Since the calculated F-value of 0.555 is less than the critical value of 4.025, we fail to reject the null hypothesis.

What is null hypothesis?

A null hypothesis is a statement that establishes the equality of two expressions and frequently includes variables, constants, and mathematical operations.

The equal sign (=) is used to denote the space between the two sides, which are referred to as the left-hand side (LHS) and the right-hand side (RHS).

To test the given hypothesis, we will use the F-test for two variances.

The null and alternative hypotheses are:

H0: σ1² = σ2² (no difference in population variances)

Ha: σ1² > σ2² (population variance of first group is greater than that of second group)

The test statistic is calculated as:

F = s1² / s2²

Where s1² and s2² are the sample variances of the two groups.

The degrees of freedom for the F-distribution are df1 = n1 - 1 and df2 = n2 - 1.

Using the given sample information, we have:

n1 = 10, n2 = 11

s1² = 562, s2² = 1013

Therefore, the test statistic is:

F = s1² / s2² = 562 / 1013 = 0.555

The degrees of freedom are df1 = 9 and df2 = 10.

Using a significance level of α = 0.01 and the F-distribution tables or a calculator, the critical value for the right-tailed test with df1 = 9 and df2 = 10 is 4.025.

Since the calculated F-value of 0.555 is less than the critical value of 4.025, we fail to reject the null hypothesis. There is not enough evidence to conclude that the population variance of the first group is greater than that of the second group at a significance level of α = 0.01.

We can conclude that there is not enough evidence to support the claim that σ1² > σ2².

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for ouls salt 1/4 (8x+12) = 19

Answers

Answer:

x = 8

Step-by-step explanation:

1/4 (8x + 12) = 19

Distribution property

1/4 x 8= 2

1/4 x 12= 3


2x + 3 = 19

19 - 3= 16

2x= 16

16/2 = 8

X= 8

Which of these is a simplified form of the equation 6Y +4 equals 8+ 2Y plus 2Y

Answers

the simplified form of the equation 6Y + 4 = 8 + 2Y + 2Y is Y = 2.

How to solve the question ?

To simplify the equation 6Y + 4 = 8 + 2Y + 2Y, we can combine like terms. Like terms are terms that have the same variable and the same exponent. In this case, we have two terms with Y as the variable, so we can combine them.

First, let's add the 2Y terms on the right side of the equation: 6Y + 4 = 8 + 4Y

Next, we can subtract 4Y from both sides of the equation to isolate the variable on one side: 6Y - 4Y + 4 = 8

Simplifying further, we can combine the Y terms: 2Y + 4 = 8

Finally, we can subtract 4 from both sides to isolate the variable: 2Y = 4

And we can solve for Y by dividing both sides by 2: Y = 2

Therefore, the simplified form of the equation 6Y + 4 = 8 + 2Y + 2Y is Y = 2.

In summary, to simplify an equation, we want to combine like terms and isolate the variable on one side of the equation. Once we have the variable on one side, we can solve for its value.  

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PLSS HELP IMMEDIATELY

Answers

The continuous compounding rate earned by the investment is given as follows:

8.022%.

How to model continuous compounding?

The balance of an account after t years, using continuous compounding, is  modeled by the equation presented as follows:

A(t) = A(0)e^{kt}.

In which:

A(0) is the initial amount.k is the continuous compounding rates.

For this problem, the parameters are given as follows:

A(11) = 58, A(0) = 24, t = 11.

Hence the rate is obtained as follows:

24e^(11k) = 58

e^(11k) = 58/24

11k = ln(58/24)

k = ln(58/24)/11

k = 8.022%.

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The line plot displays the number of roses purchased per day at a grocery store.

A horizontal line starting at 0 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 10. There are two dots above 1 and 4. There are three dots above 2 and 5. There are 4 dots above 3.

Which of the following is the best measure of variability for the data, and what is its value?

The IQR is the best measure of variability, and it equals 3.
The IQR is the best measure of variability, and it equals 9.
The range is the best measure of variability, and it equals 3.
The range is the best measure of variability, and it equals 9.

Answers

The range is the best measure of variability for this data, and its value is 4.

Which of the following is the best measure of variability for the data, and what is its value?

The line plot displays the number of roses purchased per day at a grocery store, with the data values ranging from 0 to 4 (since there are no dots above 4).

The best measure of variability for this data is the range, which is the difference between the maximum and minimum values in the data set. In this case, the minimum value is 0 and the maximum value is 4, so the range is:

Range = Maximum value - Minimum value = 4 - 0 = 4

Therefore, the range is the best measure of variability for this data, and its value is 4.

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. Bert has a well-shuffled standard deck of 52 cards, from which he draws one card; Ernie has a 12-sided die, which he rolls at the same time Bert draws a card. Compute the probability that:

a. Bert gets a Jack and Ernie rolls a five.

b. Bert gets a heart and Ernie rolls a number less than six.

c. Bert gets a face card (Jack, Queen or King) and Ernie rolls an even number.

d. Bert gets a red card and Ernie rolls a fifteen.

e. Bert gets a card that is not a Jack and Ernie rolls a number that is not twelve.

Answers

Therefore , the solution of the given problem of probability comes out to be a)1/78 ,b)65/624 ,c)1/4 ,d)0 and e)12/13.

What is probability, exactly?

The basic goal of any considerations technique is to assess the probability that a statement is accurate or that a specific incident will occur. Chance can be represented by any number range between 0 and 1, where 0 normally indicates a percentage but 1 typically indicates the level of certainty. An illustration of probability displays how probable it is that a specific event will take place.

Here,

a.

P(Bert gets a Jack and Ernie rolls a five) = P(Bert gets a Jack) * P(Ernie rolls a five)

= (4/52) * (1/12)

= 1/78

b.

P(Bert gets a heart and Ernie rolls a number less than six) = P(Bert gets a heart) * P(Ernie rolls a number less than six)

= (13/52) * (5/12)

= 65/624

c.

P(Bert gets a face card and Ernie rolls an even number) = P(Bert gets a face card) * P(Ernie rolls an even number)

= (12/52) * (6/12)

= 1/4

d.

P(Bert gets a red card and Ernie rolls a fifteen) = 0

e.

Ernie rolls a number that is not twelve, and Bert draws a card that is not a Jack:

A regular 52-card deck contains 48 cards that are not Jacks,

so the likelihood that Bert will draw one of those cards is 48/52, or 12/13.

On a 12-sided dice with 11 possible outcomes,

Ernie rolls a non-12th-number (1, 2, 3, etc.).

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Factorize the following polynomials:
1) 54x²+42x³ - 30x4

Answers

To factorize 54x²+42x³ - 30x4, we can first factor out the greatest common factor of the terms, which is 6x²:

54x² + 42x³ - 30x4
= 6x²(9 + 7x - 5x²)

Now, we can factor the expression in parentheses using the quadratic formula or by factoring it as a product of two binomials:

9 + 7x - 5x² = (3 - x)(3 + 5x)

Therefore, we have:

54x² + 42x³ - 30x4 = 6x²(3 - x)(3 + 5x)

So the factored form of the polynomial 54x²+42x³ - 30x4 is 6x²(3 - x)(3 + 5x).

The ratio of the surface areas of two similar cylinders is 16/25
. The radius of the circular base of the larger cylinder is 0.5 centimeters.

What is the radius of the circular base of the smaller cylinder?

Answers

The radius of the circular base of the smaller cylinder is approximately 0.625 centimeters.

What is surface area?

The surface area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface.

The ratio of the surface areas of two similar cylinders is equal to the square of the ratio of their corresponding radii. Let r be the radius of the circular base of the smaller cylinder. Then we have:

(surface area of larger cylinder) / (surface area of smaller cylinder) = (r_l / r)² = 16/25

where r_l is the radius of the circular base of the larger cylinder.

We know that r_l = 0.5 cm, so we can solve for r:

(r_l / r)² = 16/25

(0.5 / r)² = 16/25

0.25 / r² = 16/25

r² = 0.25 * 25 / 16

r² = 0.390625

r = √(0.390625) ≈ 0.625

Therefore, the radius of the circular base of the smaller cylinder is approximately 0.625 centimeters.

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Find the final amount of a $750 investment after 15 years at 8% interest compounded semiannually, quarterly and daily.

Answers

With given compound interest, the final amount of the investment after 15 years at 8% interest compounded semiannually, quarterly and daily are $2,067.87, $2,094.28, and $2,101.62, respectively.

What is Compound interest?

Compound interest is the addition of interest to the principal sum of a loan or deposit, or the interest earned on both the principal and any previously accrued interest. In other words, interest is computed not only on the original amount of money but also on any past interest gained. The interest generated on the cumulative interest can compound exponentially, resulting in enormous growth of an investment or loan sum over time. Compound interest is computed using a formula that takes the principle amount, interest rate, and compounding frequency into consideration.

Now,

To find the final amount of the investment, we can use the formula for compound interest:

A = P(1 + r/n)ⁿˣ

where:

A = final amount

P = principal (initial investment)

r = annual interest rate

n = times the interest is compounded per year

x = time in years

For semiannual compounding, n = 2 and x = 15:

A = 750(1 + 0.08/2)²*¹⁵= $2,067.87

For quarterly compounding, n = 4 and x = 15:

A = 750(1 + 0.08/4)⁴*¹⁵ = $2,094.28

For daily compounding, n = 365 (assuming no leap years) and x = 15:

A = 750(1 + 0.08/365)³⁶⁵*¹⁵ = $2,101.62

Therefore, the final amount of the investment after 15 years at 8% interest compounded semiannually, quarterly and daily are $2,067.87, $2,094.28, and $2,101.62, respectively.

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Use the following bond listing for Pacific Bell to answer the following: A 5-column table with 1 row. Column 1 is labeled Bonds with entry PacBell 6 and StartFraction 5 Over 8 EndFraction 34. Column 2 is labeled current yield with entry 6.55. Column 3 is labeled Volume with entry 5. Column 4 is labeled Close with entry 99 and one-fourth. Column 5 is labeled net change with entry + startFraction 1 Over 8 EndFraction. What is the coupon rate and maturity date for this bond? a. The coupon rate is 6StartFraction 5 Over 8 EndFraction; the maturity date is 2034. b. The coupon rate is StartFraction 1 Over 8 EndFraction; the maturity date is 2034. c. The coupon rate is 6StartFraction 5 Over 8 EndFraction; the maturity date is 2099. d. The coupon rate is 6.55; the maturity date is in 5 years.

Answers

The coupon rate of the bond in fraction is 6 5/8 and in percentage is 6.625% and maturity date is 2034.

What is a fraction?

A fraction is written as a ratio of two integers, where the number on top is called the numerator and the number on the bottom is called the denominator. The denominator represents the total number of equal parts that make up a whole, while the numerator represents the number of parts that are being considered. For example, the fraction 2/5 represents 2 parts out of 5 equal parts that make up the whole. Fractions can be used to represent numbers between whole numbers, such as 1/2, 3/4, and 7/8.

Now,

The coupon rate of the bond is 6 5/8 or 6.625%.

The maturity date is not explicitly given in the bond listing. However, based on the convention used in bond listings, the year of maturity can be inferred from the number in the bond name. In this case, the bond name is "PacBell 6 5/8 34", which suggests that the bond matures in 2034.

Therefore, the answer is:

a. The coupon rate is 6 5/8 and the maturity date is 2034.

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The five number summary of a dataset was found to be:
45, 52, 56, 63, 66

An observation is considered an outlier if it is below:

An observation is considered an outlier if it is above:

Answers

An observation is considered an outlier if it is below 35.5 or above 79.5 in this dataset.

Identifying the outliers in the summary

To determine the outliers in a dataset using the five-number summary, we need to calculate the interquartile range (IQR), which is the difference between the third quartile (Q3) and the first quartile (Q1).

IQR = Q3 - Q1

Where

Q1 = 52

Q3 = 63

So, we have

IQR = 63 - 52

IQR = 11

An observation is considered an outlier if it is:

Below Q1 - 1.5 × IQR

Above Q3 + 1.5 × IQR

Substituting the values, we get:

Below 52 - 1.5 × 11 = 35.5

Above 63 + 1.5 × 11 = 79.5

Therefore, an observation is considered an outlier if it is below 35.5 or above 79.5 in this dataset.

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An eraser is 2 1/2 inches long. How long are 10 erasers places end to end?

Answers

Answer:

25 inches

Step-by-step explanation:

We Know

An eraser is 2 1/2 inches long.

2 1/2 = 5/2 = 2.5 inches long

How long are 10 erasers placed end to end?

We Take

2.5 x 10 = 25 inches

So, it is long 25 inches.

100 POINTS


Answer this question for me please.

Answers

Answer: Rectangle

Step-by-step explanation: The shape created by the cross-section is a rectangle because the cross-section shows a 2-dimensional slice of a 3-dimensional rectangular prism. Since a rectangular prism has rectangular faces, any cross-section taken perpendicular to the length of the prism will be a rectangle.

please help fill these in..​

Answers

Examining the curve the information obtained are

vertex (3, 13)

axis of symmetry: x = 13

y intercept: (0, 5)

maximum

Domain (-∞, ∞)

Range (-∞, 12]

What is a parabolic curve

A parabolic curve, also known as a parabola, is a symmetrical U-shaped curve. It is defined by a mathematical equation of the form

y = ax^2 + bx + c,

where a, b, and c are constants, and x and y are the coordinates of points on the curve.

The graph of a parabolic curve is smooth and continuous, with no sharp corners or discontinuities.

The vertex is at the peak of the curve and the coordinates is (3, 13) where the axis of symmetry is where the curve is divided into two equal parts. This is represented by the equation x = 3

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Please help me thank u :)

Answers

Step-by-step explanation:

By rearranging the ages in increasing order;

22,28,32,40,40,50,55,57

Median = (40+40)÷2

= 80 ÷ 2

= 40

Mode = 40

( The value that occurs most)

Range = Highest value - Lowest value

= 57 - 22

= 35

I need helppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

The distance formula is

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

x1 is a,

x2 is 0,

y1 is 0 and

y2 is b. Fitting those into the formula where they belong:

[tex]d=\sqrt{(0-a)^2+(b-0)^2}[/tex] and

[tex]d=\sqrt{(-a)^2+(b)^2}[/tex]

Since a negative squared is a positive, then

[tex]d=\sqrt{a^2+b^2}[/tex]

which is the second choice down.

7. A group of students wants to demonstrate that sunlight provides the energy for plants to grow. What is
the control group for the experiment?
A. Some plants will receive less water
B. Some plants will receive fertilizer
C. Some plants will receive no sunlight
D. Some plants will receive no water
I

Answers

The control group for the experiment would be option C: some plants will receive no sunlight.

What is control group for experiment ?

The control group in an experiment is the group that does not receive the treatment or intervention being tested, so that the effects of the treatment can be compared to a baseline or reference point. In this experiment, the treatment being tested is the provision of sunlight as an energy source for plant growth.

Therefore, the control group should not receive sunlight, so that the effects of sunlight can be compared to the baseline of plant growth without sunlight.

Therefore, the control group for the experiment would be option C: some plants will receive no sunlight.

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At a local print shop, 18 copies can be made for $4. At this rate, how much would it cost to make 63 copies? Fill out the table of equivalent ratios until you have found the value of x.

Answers

It would cost $14 to make 63 copies at the same rate as 18 copies for $4 and required table is

Number of copies Cost

18 $4

63 $14

How to find cost of making 63 copies?

To find the cost of making 63 copies, we need to set up a proportion with the ratio of the number of copies to the cost of making them.

We know that 18 copies cost $4, so we can write:

18/4 = 63/x

To solve for x, we can cross-multiply:

18x = 4 × 63

18x = 252

x = 252/18

x = 14

Therefore, the cost of making 63 copies at the same rate as 18 copies for $4 would be $14.

We can fill out the table of equivalent ratios to help solve the problem:

Number of copies Cost

18 $4

63 $x

We can set up the proportion by dividing the number of copies by the cost:

18/4 = 63/x

Then, we can cross-multiply to solve for x:

18x = 4 × 63

18x = 252

x = 252/18

x = 14

Therefore, it would cost $14 to make 63 copies at the same rate as 18 copies for $4.

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Find the amount of the payment to be made into a sinking fund so that enough will be present to accumulate the following amount. Payments are made at the end of each period.
​$85,000​; money earns 8​% compounded semiannually for 4 1/2
years

Answers

The amount of payment to be made into the sinking fund is approximately $71,207.16, using the compound interest formula.

What is compound interest?

Compound interest is the interest calculated not only on the initial principal amount of a loan or investment but also on the accumulated interest from previous periods. In other words, it is interest that is added to the original amount (principal), and then interest is calculated on the new total (principal + accumulated interest) for subsequent periods.

According to the given information:

To find the amount of payment to be made into a sinking fund, we can use the formula for compound interest:

A = P(1 + r/n)ⁿt

where:

A = the accumulated amount

P = the payment made at each period

r = the annual interest rate (expressed as a decimal)

n = the number of compounding periods per year

t = the number of years

In this case, we have:

A = $85,000 (the accumulated amount)

r = 8% per year, compounded semiannually, so r = 0.08/2 = 0.04 (since there are two compounding periods in a year)

n = 2 (since the interest is compounded semiannually)

t = 4.5 years

Plugging these values into the formula, we get:

$85,000 = P(1 + 0.04/2)⁹

Now we can solve for P by dividing both sides of the equation by (1 + 0.04/2)^(2 * 4.5):

P = $85,000 / (1 + 0.04/2)⁹

P = $85,000 / (1.02)⁹

P = $85,000 / 1.193

P ≈ $71,207.16

So, the amount of payment to be made into the sinking fund is approximately $71,207.16.

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KPI Payouts are: Prepaid Ring-out Only: $ 1.00 Prepaid Activation: $ 2.00 Accessories: 1.5 Equipment Protection: $ 1.00 You can make $ and ring it out at the POS. % when you activate a prepaid device with equipment protection

Answers

If no accessories are sold, $3 will be paid out. In the event that accessories are sold, the compensation is $2.00 plus $1.00 plus 1.5 percent of their worth.

Based on the information given, the KPI payouts are:

$1.00 for each Prepaid Ring-out Only

$2.00 for each Prepaid Activation

1.5% of the value of each Accessories sale

$1.00 for each Equipment Protection sale

We need to know the values of the prepaid activation and equipment protection in order to compute the payment for activating a prepaid device with equipment protection. Assume that the equipment protection is worth $Y and the prepaid activation is worth $X.

The following would be the total payment for activating a prepaid device with equipment protection:

Payout = $2.00 (for activation) + $1.00 (for equipment protection) + 1.5% (of the value of accessories sold)

If no accessories are sold, the payout would be:

Payout = $2.00 + $1.00

= $3.00

If accessories worth $Z are also sold, the payout would be:

Payout = $2.00 + $1.00 + 1.5% of $Z

= $2.00 + $1.00 + 0.015Z

So the payout for activating a prepaid device with equipment protection depends on the value of the accessories sold.

Therefore,  If no accessories are sold, the payout is $3.00. If accessories are sold, the payout is $2.00 + $1.00 + 1.5% of the value of the accessories sold.

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0\left\{-10\le x\le10\right\}
Describe the transformations (vertical translation, horizontal translation, and dilation/reflection) from the parent function that happened to these formulas

Answers

The formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

What is Function?

A function is a mathematical rule that assigns each input from a set (domain) a unique output from another set (range), typically written as y = f(x).

The notation "0{-10≤x≤10}" typically represents the domain of a function or an inequality. It means that the function is defined only for the values of x that are between -10 and 10 (including -10 and 10).

Assuming that the function in question is a constant function equal to zero, the parent function is f(x) = 0.

To describe the transformations that happened to this function, we need more information about the specific formula. For example, if the formula is:

g(x) = 0{-10≤x≤10}

Then there are no transformations from the parent function. The function is simply a constant function that is equal to zero over the interval [-10, 10].

However, if the formula is something like:

g(x) = 2 * 0{-10≤x+3≤10}

Then we can describe the transformations as follows:

Horizontal translation: The function has been shifted horizontally to the left by 3 units. This means that the point (3, 0) on the parent function is now located at the origin (0, 0) on the transformed function.

Dilation/reflection: The function has been reflected about the y-axis and vertically scaled by a factor of 2. This means that the point (-1, 0) on the parent function is now located at (-4, 0) on the transformed function, and the point (1, 0) on the parent function is now located at (2, 0) on the transformed function.

Vertical translation: There is no vertical translation in this case, since the constant function is already centered at y = 0.

To summarize, the formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

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The formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

What is Function?

A function is a mathematical rule that assigns each input from a set (domain) a unique output from another set (range), typically written as y = f(x).

The notation "0{-10≤x≤10}" typically represents the domain of a function or an inequality. It means that the function is defined only for the values of x that are between -10 and 10 (including -10 and 10).

Assuming that the function in question is a constant function equal to zero, the parent function is f(x) = 0.

To describe the transformations that happened to this function, we need more information about the specific formula. For example, if the formula is:

g(x) = 0{-10≤x≤10}

Then there are no transformations from the parent function. The function is simply a constant function that is equal to zero over the interval [-10, 10].

However, if the formula is something like:

g(x) = 2 * 0{-10≤x+3≤10}

Then we can describe the transformations as follows:

Horizontal translation: The function has been shifted horizontally to the left by 3 units. This means that the point (3, 0) on the parent function is now located at the origin (0, 0) on the transformed function.

Dilation/reflection: The function has been reflected about the y-axis and vertically scaled by a factor of 2. This means that the point (-1, 0) on the parent function is now located at (-4, 0) on the transformed function, and the point (1, 0) on the parent function is now located at (2, 0) on the transformed function.

Vertical translation: There is no vertical translation in this case, since the constant function is already centered at y = 0.

To summarize, the formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

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