We need to round up to the nearest integer, the required sample size is 76 households.
To estimate the required sample size, we can use the formula:
[tex]n = (z^2 * s^2) / E^2[/tex]
Where:
z is the z-score corresponding to the confidence level (90% = 1.645)
s is the standard deviation of the population (square root of the variance, so s = sqrt(3.61) = 1.898)
E is the maximum error allowed (0.15 gallons)
Plugging in the values, we get:
[tex]n = (1.645^2 * 1.898^2) / 0.15^2[/tex]
n = 75.57
Since we need to round up to the nearest integer, the required sample size is 76 households.
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A printing press used 2 1/3 reams of paper to print 3 books. How many reams of paper did the printing press use for each book?
Write your answer as a fraction or as a whole or mixed number.
PLEASE HELP
Answer: 7/9
Step-by-step explanation:
To find how many reams of paper the printing press used for each book, we need to divide the total number of reams used by the number of books printed.
Let's convert 2 1/3 reams of paper to an improper fraction:
2 1/3 = (2 × 3 + 1) / 3 = 7/3
So the printing press used 7/3 reams of paper to print 3 books. To find how many reams of paper were used per book, we can divide the total amount of paper used by the number of books:
(7/3) ÷ 3 = 7/9
Therefore, the printing press used 7/9 of a ream of paper for each book.
Using the Standard Normal Table, what is the z-score with an area of 0.6808 to its left?
The area of 0.6808 to its left using the Standard Normal Table.
steps: 1. Identify the area: In this case, the area to the left of the z-score is given as 0.6808.
2. Consult the Standard Normal Table: This table shows the area to the left of various z-scores, ranging from negative to positive values.
3. Locate the closest area value: Look for the value in the table that is closest to the given area (0.6808). The table is typically organized into rows and columns, with the row header representing the first two digits of the z-score and the column header representing the third digit.
4. Identify the z-score: Once you've found the closest area value, determine the corresponding z-score by combining the row and column headers where the value is located.
Upon checking the Standard Normal Table, the closest area value to 0.6808 is 0.6800, which corresponds to a z-score of 0.47.
Keep in mind that the Standard Normal Table may not have the exact area value of 0.6808, so you need to find the closest possible value.
In summary, the z-score with an area of 0.6808 to its left using the Standard Normal Table is approximately 0.47.
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Consider a two-period binomial model with risk-neutral prob- ability distribution p=0.6, q=0.4. Let V2 be the payoff for a derivative with: Va(ww.) = { s 1 if w1 = H, W2 = H or w1 = T, W2 =T 0 otherwise Find the price of this derivative.
To price the derivative using the two-period binomial model, we need to calculate the expected payoff of the derivative using the risk-neutral probabilities.
The possible outcomes for the two-period binomial model are H and T, there are four possible states of the world: HH, HT, TH, and TT.
To calculate the expected payoff we need to calculate the probability of each state occurring. The probability of HH occurring is pp=0.60.6=0.36, the probability of HT and TH occurring is pq+qp=0.60.4+0.40.6=0.48, and the probability of TT occurring is qq=0.40.4=0.16.
Next, we can calculate the expected payoff in HH and TT states, the derivative pays off 1, and in the HT and TH states, the derivative pays off 0. The expected payoff of the derivative in the HH and TT states is 10.36=0.36, and the expected payoff in the HT and TH states is 00.48=0.
We need to discount the expected payoffs back to time 0 using the risk-neutral probabilities.
The probability of that state occurring multiplied by the discount factor, which is 1/(1+r), where r is the risk-free interest rate.
Since this is a risk-neutral model, the risk-free interest rate is equal to 1. Therefore, the risk-neutral probability of each state occurring is
HH: 0.36/(1+1) = 0.18
HT/TH: 0.48/(1+1) = 0.24
TT: 0.16/(1+1) = 0.08
Finally, we can calculate the price of the derivative
Price = 0.181 + 0.240 + 0.240 + 0.081 = 0.26
Therefore, the price of the derivative is 0.26.
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HELP MEEEEEE PLEASEEEE
Answer: a=2 b= -2 c= -2
Step-by-step explanation: you replace y with a and you plug the x for them in so a= -1^2 -3 (-1) - 2 and you solve that to equal 2 then you solve for the others
Suppose that water is poured into a tank at a rate of 2000t 1000 gallons per minute for t > 0. If the tank started with 5000 gallons of water how much water is in the tank after 4 minutes
There is a volume of 14,000 gallons of water in the tank after 4 minutes.
To answer your question, let's consider the given terms: the rate at which water is poured into the tank (2000t + 1000 gallons per minute) and the initial volume of water in the tank (5000 gallons).
Since the rate is given in terms of time t, we can find the volume of water poured in after 4 minutes by plugging t = 4 into the rate equation:
Volume poured in 4 minutes = 2000(4) + 1000
Volume poured = 8000 + 1000
Volume poured = 9000 gallons
Now, add this to the initial volume of water in the tank:
Total water in tank after 4 minutes = Initial volume + Volume poured
Total water = 5000 + 9000
Total water = 14,000 gallons
So, after 4 minutes, there are 14,000 gallons of water in the tank.
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Maria scored 6 points in the basketball game. Suzanne scored 4 times as many points as Maria. how many points did Suzanne score?
Answer:
24 points
Step-by-step explanation:
Maria scored a total of 6 points, and Suzanne scored 4 times as many.
something times as many, means to multiply, so 6 x 4=24 points total
pls give me an answer
The surface area for each package is given as follows:
Package A: 492 in².Package B: 404 in².Hence:
Package A has the greater surface area.
What is the surface area of a rectangular prism?The surface area of a rectangular prism of height h, width w and length l is given by:
S = 2(hw + lw + lh).
This means that the area of each rectangular face of the prism is calculated, and then the surface area is given by the sum of all these areas.
For Package A, the dimensions are given as follows:
l = 14 in, h = 12 in, w = 3 in.
Hence the surface area is given as follows:
S = 2 x (12 x 3 + 14 x 3 + 12 x 14)
S = 492 in².
For Package B, the dimensions are given as follows:
l = 11 in, h = 6 in, w = 8 in.
Hence the surface area is given as follows:
S = 2 x (11 x 6 + 11 x 8 + 6 x 8)
S = 404 in².
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Sally uses a total of 1 cup of liquid for a recipe. She used 2/5 cup of vinegar. And the rest of the liquid was Malik
Sara used 3/5 cup of milk in the recipe. The answer corresponds to option (B) in the given answer choices.
The total amount of liquid used by Sara in the recipe is 1 cup. Out of this 1 cup, Sara used 2/5 cup of vinegar. Therefore, the amount of milk she used would be the difference between the total amount of liquid used and the amount of vinegar used.
Mathematically, we can represent this as:
Amount of milk = Total amount of liquid - Amount of vinegar
Amount of milk = 1 cup - 2/5 cup
Simplifying the expression on the right side, we get:
Amount of milk = 5/5 cup - 2/5 cup
Amount of milk = 3/5 cup
Therefore, Correct option is B.
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Complete question is:
Sara used a total of 1 cup of liquid for a recipe. She used 2/5 cup of vinegar, and the rest of the liquid she used was milk.
How much milk, in cups, did sara use for the recipe?
A) 2/5
B)3/5
C)5/5
D) 1 2/5
7z + 7> - 2z -4 solve the following for inequality for z simplest form
Answer:
z > - [tex]\frac{11}{9}[/tex]
Step-by-step explanation:
7z + 7 > - 2z - 4
9z + 7 > -4
9z > - 11
z > - [tex]\frac{11}{9}[/tex]
Find x and y out of these equations written below
7x+4y=12
x+2y=-4
Answer: 7x+4y=12 answer is x = (12/7, 0) and y (0,3) and the x+2y=-4 is
x intercepts (-4,0) and y intercepts is (0,-2)
Step-by-step explanation:
Add to one side and then divide
46×28. The last problem I posted was 4×6. Please don’t answer that question. It is wrong Please send me a picture of how you do this. this is my homework.
Answer:1288
Step-by-step explanation:
Answer: 1,288.
The Picture Below and the explanation
Step-by-step explanation: You Multiply 6 times 8 to get 48. Then you put 4 on top of 46. Next, you multiply 4 times 8 and add 4 to add 36 as two digits below the first line of multiplication. Next, you cross out the 8 then you do a new set of multiplication starting with 6 times two which is 12 carry the one above four in a different direction ( it might look like a capital I but it is just 1). Then, multiply 4 times 2 plus 1 is 9. Last, you add 368+920= 1,288 and there is your answer. I hope this will help.
Can someone show me step by step on how to do this
An image of a rhombus is shown.
a rhombus with a base of 16 centimeters and a height of 14 centimeters
What is the area of the rhombus?
224 cm2
120 cm2
112 cm2
60 cm2
help please!!!!!!!!!!!
The correct statement regarding the two functions is given as follows:
f(1) = g(1).
How to solve a system of equations?Considering the graph containing the equations for the system, the solution of the system of equations is given by the point of intersection of all the equations of the system.
The point of intersection for this problem is given as follows:
(1,3).
Which means that at x = 1, function f(x) and g(x) have the same numeric value, thus the correct statement is given as follows:
f(1) = g(1).
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A clothing store has these items on sale:
5 hats
10 jackets
15 pants
20 sweaters
A customer randomly selects one of the sale items. Complete each statement
Select the correct answer for each box. Each answer may be used more than once. Not all answers will be used. a 0.10 b 0.20 c 0.40 d 0.50 e 0.70 f 0.80
The probability that the customer will randomly select a sweater or a hat is
The probability that the customer will randomly select a jacket is
Answer:
To find the probability of choosing a hat, we divide the number of hats by the total number of choices = #hat / #clothes = 5 / (5+10+15+20) = 5 / 50 = 1 / 10 = 0.1.
Step-by-step explanation:
Round to 1 significant figure:
The rounded number to 1 significant figure is 10000m.
Significant figures are a way of indicating the precision of a measurement or calculation. They represent the digits in a number that are known with certainty, plus one additional digit that is estimated. The rules for determining significant figures include:
Non-zero digits are always significant.Zeros between non-zero digits are significant.Leading zeros (zeros before the first non-zero digit) are not significant.Trailing zeros (zeros at the end of a number, after the last non-zero digit) are significant if there is a decimal point.Significant figures are important because they allow us to communicate the accuracy and precision of a measurement or calculation. By using the appropriate number of significant figures, we can avoid misleading others with inaccurate or imprecise information.
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Savannah is playing a game with the spinner below. She gets to spin twice.
Write the sample space of all possible outcomes of these two spins.
The sample space of the spinner after spinning it twice is given by { (A, A) , (A, B ) , (A, C ), (A, D ) , ( B, A ), ( B, B ) , ( B, C ) , ( B, D ) , ( C, A ),
(C, B ) , ( C, C ) , (C, D ) , ( D, A ) , ( D, B ) , ( D, C ) , ( D, D ) }
Game played by Savannah using a spinner.
She spin the spinner twice.
To create a sample space for two spins of a spinner,
List all the possible outcomes of the first spin in one column.
And then list all the possible outcomes of the second spin in another column.
Then combine each outcome from the first column with each outcome from the second column to create all possible pairs of outcomes.
For example, suppose the spinner has 4 equally sized sections labeled A, B, C, and D.
The sample space for two spins would be,
{ (A, A) , (A, B ) , (A, C ), (A, D ) , ( B, A ), ( B, B ) , ( B, C ) , ( B, D ) , ( C, A ),
(C, B ) , ( C, C ) , (C, D ) , ( D, A ) , ( D, B ) , ( D, C ) , ( D, D ) }
Here, there are 16 possible outcomes for two spins of the spinner.
Therefore, the sample space of all possible outcomes of two spins is equal to { (A, A) , (A, B ) , (A, C ), (A, D ) , ( B, A ), ( B, B ) , ( B, C ) , ( B, D ) , ( C, A ), (C, B ) , ( C, C ) , (C, D ) , ( D, A ) , ( D, B ) , ( D, C ) , ( D, D ) } .
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Answer:
Step-by-step explanation:
Therefore, the sample space of all possible outcomes of two spins is equal to { (A, A) , (A, B ) , (A, C ), (A, D ) , ( B, A ), ( B, B ) , ( B, C ) , ( B, D ) , ( C, A ), (C, B ) , ( C, C ) , (C, D ) , ( D, A ) , ( D, B ) , ( D, C ) , ( D, D ) } .
I just need the perimeter
Example #2 - Coordinate Perimeter/Area Calculate the area and perimeter of the shape shown. Determine the: Perimeter Area
Using composite figures, we can find that the area of the shape is 18unit² and the perimeter of the shape is 20 + √8 units.
Define composite figures?A composite shape is a shape that is made by connecting a few polygons to form a different shape. These shapes or figures can be formed from a variety of shapes, including triangles, squares, quadrilaterals, etc. Divide a composite item into basic forms such a square, triangle, rectangle, or hexagon to get its area.
In essence, a composite shape is a combination of fundamental shapes. It goes by the name's "composite" or "complex" shapes.
In this composite figure,
We have 2 rectangles and a triangle.
Dimension of rectangle:
Base = 2units
Height = 2 units.
Hypotenuse = √ (2² + 2²)
= √8
Area of the triangle = 1/2 × b × h
= 1/2 × 2 × 2
= 2unit².
Now, the rectangles are equal in shape and size.
Dimensions are:
Length = 4 units
Breadth = 2 units.
Area = l × b
= 4 × 2
= 8unit².
We have 2 rectangles so total area = 2 × 8
= 16unit².
Total area of the shape = area of triangle + area of 2 rectangles
= 2 + 16
= 18unit²
Now coming to the perimeter of the shape, we have to find the sum of the measure of the sides of the shape:
So, we have
2 + 4 + 2 + 6 + 6 + √8
= 20 + √8 units.
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Jackson takes a marker and draws an arrow at the top of his yo-yo, pointing it toward the string when it is all wound up. The location of the arrow on the yo-yo can be represented by a cosine function.
Answer:
Step-by-step explanation:
see it simple it's not asking quite much if I do my calculation right it would be 8[tex]\pi[/tex]
As association class is frequently required for what kind of relationship?
a. zero to one c. many to many
b. one to many d. zero to many
An association class is frequently required for a many-to-many relationship.
In object-oriented programming, an association class is a class that is used to represent an association between two or more other classes. An association class is typically used when the relationship between the other classes is many-to-many, which means that each instance of one class can be associated with multiple instances of another class, and vice versa.
For example, consider a database that stores information about students and the courses they are enrolled in. Each student can be enrolled in multiple courses, and each course can have multiple students.
To represent this many-to-many relationship between students and courses, we can create an association class called "Enrollment" that has attributes such as the date of enrollment and the grade received. The Enrollment class would have a many-to-one relationship with both the Student class and the Course class.
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An association class is frequently required for a "c. many to many" relationship. therefore, option c. many to many is correct.
In this type of relationship, multiple instances of one class can be associated with multiple instances of another class.
The association class helps to capture additional information about the relationship between these instances.
An association class is most commonly required for a many-to-many relationship between two classes.
a relationship that explains the causes of the relationship and the rules that control it between two classifiers, such as
classes or use cases.
An association class is frequently required for a "c. many to many" relationship. therefore, option c. many to many is correct.
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19 - 6(-k + 4) Simplify to create an equivalent expression
The equivalent expression of this 19 - 6(-k + 4) will be 6k + 5.
Given that:
Expression, 19 - 6(-k + 4)
The equivalent is the expression that is in different forms but is equal to the same value.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less complicated.
Simplify the expression, then we have
⇒ 19 - 6(-k + 4)
⇒ 19 + 6k - 24
⇒ 6k - 5
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Please help me I've been stumped on this problem
The measure of ∠CFE is 40°
How do we find ∠CEF?To solve for triangle ∠CEF, we know that
Parallel to DE is BC
Arc length BD = 58°
Arc length DE = 142°
We can then draw a diameter across the center of the circle and give it a name as the first step. The diameter in this situation is line ZT.
The arcs BD and DE are split in half by the line ZT.
Which is:
Arc SC = 1/(1/2(arc BC) = 1/(58)
Arc SC = 29°
142 = 1/2(arc DE) + arc TE
Arc TE = 71°
Sum of the angles of a semicircle is 180 degrees: Arc SC + Arc CE + Arc TE
29° + Arc CE + 71° = 180°
Arc CE + 100° = 180°
Arc CE = 180-100
Arc CE = 80°
Angle inscribed equals half of angle intercepted
CFE = 1/2 of Arc CE
<CFE = 1/2(80)
< CFE = 40°
The above answer is based on the full question below;
In circle A shown, BC || DE , mBC=58° and mDE=142°. Determine the measure of ZCFE . Show how you arrived at your answer
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How many flowers, spaced every 3 in., are needed to surround a circular garden with a 175-ft radius? Use 3.14 for pi.
PLEASE help
4,396 flowers are needed to surrond the circular garden.
How many flowers, spaced every 3 in are needed?We know that the circumference of a circle of radius R is:
C = 2*3.14*R
Here the radius is 175ft, then the circumference is:
C = 2*3.14*175ft = 1,099ft
And we know that:
1ft = 12in
Then the circumference in inches is:
1,009*12 in = 13,188 in
If each flower is separated by 3 inches, the number needed is:
13,188 in/3in = 4,396 flowers.
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What is 117 15% of what number, please give a step-by-step explaination!
Answer:
780
Step-by-step explanation:
To find out what number 117 is 15% of, you can use the following formula
(15/100) x n = 117
where n is the number you're trying to find.
To solve for n, you need to isolate it on one side of the equation. You can do this by dividing both sides by (15/100):
n = 117 / (15/100)
n = (117 x 100) / 15
n = 11700 / 15
n = 780
Therefore, 117 is 15% of 780.
according to a 2009 reader's digest article, people throw away approximately of what they buy at the grocery store. assume this is the true proportion, and you plan to randomly survey 100 grocery shoppers to investigate their behavior. what is the probability that the sample proportion exceeds ? round your answer to three decimal places.
Answer: The problem states that the proportion of people who throw away a portion of what they buy at the grocery store is p = 0.4. We want to find the probability that the sample proportion exceeds a certain value, which we will denote as p-hat.
The sample size is n = 100, which is large enough to use the normal approximation to the binomial distribution.
The formula for the standard error of the sample proportion is:
SE = sqrt[p * (1 - p) / n]
Substituting the values given in the problem, we get:
SE = sqrt[0.4 * 0.6 / 100] = 0.049
To find the z-score corresponding to a sample proportion of , we use the formula:
z = (p-hat - p) / SE
Substituting the values given in the problem, we get:
z = ( - 0.4) / 0.049 = -2.04
Using a standard normal table, we find that the probability of obtaining a z-score of -2.04 or lower is 0.0207. Therefore, the probability that the sample proportion exceeds is approximately 0.0207, rounded to three decimal places.
Step-by-step explanation:
2. Given: MNOP is a rectangle.
Show: The diagonals bisect each other, and the diagonals are congruent.
M
P
O
DA
We have shown that the diagonals of rectangle MNOP bisect each other and are congruent.
Describe Diagonal?In geometry, a diagonal is a line segment connecting two non-adjacent vertices of a polygon, such as a triangle, quadrilateral, or higher-order polygon. For example, in a rectangle, the diagonals are the line segments connecting opposite corners.
A diagonal can also refer to a line segment connecting two opposite corners of a three-dimensional solid, such as a cube or rectangular prism.
In many cases, diagonals have important properties and can be used to solve geometric problems. For example, in a rectangle, the diagonals are congruent and bisect each other. In a regular polygon with n sides, the number of diagonals can be calculated using the formula (n(n-3))/2. The length of a diagonal in a right triangle can be found using the Pythagorean theorem.
To show that the diagonals of rectangle MNOP bisect each other, we need to prove that the midpoint of diagonal MP is the same as the midpoint of diagonal NO.
Let's find the coordinates of the midpoints of MP and NO:
Midpoint of MP:
((x1 + x2)/2, (y1 + y2)/2)
= ((-7 + 5)/2, (1 - 7)/2)
= (-1, -3)
Midpoint of NO:
((x1 + x2)/2, (y1 + y2)/2)
= ((5 - 7)/2, (1 - 7)/2)
= (-1, -3)
As we can see, the midpoint of MP and NO are both (-1, -3), which means the diagonals bisect each other.
To show that the diagonals of rectangle MNOP are congruent, we need to find the length of both diagonals and prove that they are equal.
Let's find the length of diagonal MP:
MP = √((5 - (-7))² + ((-7) - 1)²)
= √(12² + (-8²)
= √(144 + 64)
= √(208)
Let's find the length of diagonal NO:
NO = √((5 - (-7))² + (1 - (-7)²)
= √(12² + 8²)
= √(144 + 64)
= √(208)
As we can see, the length of both diagonals is sqrt(208), which means the diagonals are congruent.
Therefore, we have shown that the diagonals of rectangle MNOP bisect each other and are congruent.
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Can you pls help? This is geometry
The equation of the circle centered at (4, -5) with radius 7 is (x - 4)²+ (y + 5)² = 49.
Define circleA circle is a two-dimensional form that may be described as a collection of points (locus) that are equally spaced apart from a central fixed point. The radius of a circle is the separation between its centre and any other point on the circle. Another way to think of a circle is as the collection of all points at a certain radius from the centre.
The equation of a circle with center (h, k) and radius r is given by:
(x - h)² + (y - k)²= r²
In this case, the center of the circle is (4, -5), and the radius is 7. So the equation of the circle is:
(x - 4)² + (y - (-5))² = 7²
(x - 4)² + (y + 5)² = 49
Therefore, the equation of the circle centered at (4, -5) with radius 7 is (x - 4)² + (y + 5)² = 49.
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which linear graph represents a proportional relationship?
Gary drove 800 miles over a period of 18 hours. Calculate his average speed. Round to the nearest tenth
Gary's average speed is approximately 44.4 mph. This is found by dividing the total distance traveled (800 miles) by the total time taken (18 hours) and rounding to the nearest tenth.
To calculate Gary's average speed, we need to use the formula
Average speed = Total distance ÷ Total time
In this case, the total distance is 800 miles, and the total time is 18 hours. So we can plug these values into the formula and simplify
Average speed = 800 miles ÷ 18 hours
Average speed = 44.444444... miles per hour
Rounding to the nearest tenth, we get
Average speed ≈ 44.4 miles per hour
Therefore, Gary's average speed during his 800-mile trip was approximately 44.4 miles per hour.
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Each toy is 8 inches tall by 12 inches wide and 6 inches wide how much space is in each box
Each box needs to have a minimum space of 576 cubic inches to hold the toy.
What is a cuboid?
A cuboid is a three-dimensional solid shape that has six rectangular faces, where each face meets at right angles with adjacent faces.
To calculate the space required for each box to hold a toy that is 8 inches tall by 12 inches wide and 6 inches deep, we need to calculate the volume of the toy.
The volume of the toy can be calculated as:
Volume = height x width x depth
Volume = 8 inches x 12 inches x 6 inches
Volume = 576 cubic inches
Therefore, each box needs to have a minimum space of 576 cubic inches to hold the toy.
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Jacob is handing out fliers to advertise the next ASB meeting. He hands
out fliers to 5 people. Then, each of these 5 people hand out 5 fliers to 5
other people. If this goes on for 4 rounds, with each person that got
fliers in the pervious round handing out 5 flier to people in the next found,
How many people will have gotten fliers at that point including Jacob himself?
Answer: 5 (first round) + 25 (second round) + 125 (third round) + 625 (fourth round) = 780
So, at the end of 4 rounds, including Jacob himself, 780 people will have gotten fliers.
Step-by-step explanation: In the first round, Jacob hands out fliers to 5 people.
In the second round, each of the 5 people from the first round hands out 5 fliers to 5 other people. So, there are now 5 x 5 = 25 people with fliers (including the original 5).
In the third round, each of the 25 people from the second round hands out 5 fliers to 5 other people. So, there are now 25 x 5 = 125 people with fliers (including the original 5 and the 25 from the second round).
In the fourth round, each of the 125 people from the third round hands out 5 fliers to 5 other people. So, there are now 125 x 5 = 625 people with fliers (including the original 5, the 25 from the second round, and the 125 from the third round).