The inequality that can be used to determine v, the minimum number of visits Matthew needs to earn his first free movie ticket is 50 + 8.5v >= 185.
How to illustrate the information?From the information, Matthew has a points card for a movie theater, he receives 50 rewards points just for signing up and earns 8.5 points for each visit to the movie theater.
Since he needs at least 185 points for a free movie ticket, the inequality will be:
50 + 8.5v >= 185
where v = the minimum number of visits Matthew needs to earn his first free movie ticket.
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the length of a rectangle is 3 inches m ore that its width. if the perimeter is 42 inches, what are the dimensions of the rectangle
Answer:
width is 9 length is 12 :)
Step-by-step explanation:
I'm doing this stuff rn
Unit 5 part 2. K12.
Who killed were and how.
Answer:
Step-by-step explanation:
Charlemagne son died in Aisa he was shot
Si el gerente de control de calidad desea estimar la media de vida de lámparas con 20 horas, con un nivel de confianza del 95% y se supone un error de 10%. ¿Cuál es el tamaño de la muestra?
English translation:
If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?
Assume that a simple random sample has been selected from a normally distributed population. Find the test statistic,
P-value, critical value(s), and state the final conclusion.
Test the claim that for the population of female college students, the mean weight is given
by u = 132 lb. Sample data are summarized as n = 20, x = 137 lb, and s = 14.2 lb. Use a
The test statistic is at α = 0.10 we have sufficient evidence that means weight is given by μ = 132 lb.
What is p-value?
The p-value, used in null-hypothesis significance testing, represents the likelihood that the test findings will be at least as extreme as the result actually observed, presuming that the null hypothesis is true.
As given,
State the hypothesis,
Ha: μ = 132
Ha: μ ≠ 132 (two failed test)
Test satisfies:
As σ is unknown we will use t-test satisfies
t = (x - μ)/(s/√n)
Substitute values,
t = (137 - 132)/(14.2/√20)
t = 1.57
t satisfies is 1.57.
Critical values,
P(t < tc) = P(t < tc) = 0.05
using t table at df = 19
tc = ±1.729
So value is tc = (-1.729, 1.729)
P-value:
P(t > ItstatI) = p-value
P(t > I1.57I) = p-value
Using t-table
p-value = 0.1329
given
α = 0.10
So, p-value < α
Do not reject Null hypothesis.
Conclusion:
At α = 0.10 we have sufficient evidence that means weight is given by μ = 132 lb.
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A population of 752,000 people decreases at a rate of 1.4% each year. Let t represent the number of years and A(t) represent the amount after years, Which function models this situation?
Solution :
Initial population, P = 752,000 .
Rate of decrease, r = 1.4 % .
Now, population decrease in 1st year :
\(P_1 = P( 1 - 0.014 )\)
Also, population decrease in 2nd year :
\(P_2 = P_1( 1 -0.014 )\\\\P_2 = P( 1 - 0.014)^2\)
Similarly for each next x year, population will be :
\(P_x = P( 1-0.014)^x\)
Therefore, population after x years is given by :
\(P_x = 752000 ( 1-0.014)^x\)
p²÷4-m; use m=3, and p=4
Find the area and perimeter of the original planned patio and the new planned patio? help me please
Answer:
Original Patio:
-perimeter - 36 feet
-area - 80 square feet
New Patio:
-perimeter - 40 feet
-area - 96 square feet
a study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 22.5 pounds and a standard deviation of 5.9 pounds. step 2 of 2: if a sampling distribution is created using samples of the amounts of weight lost by 72 people on this diet, what would be the standard deviation of the sampling distribution of sample means? round to two decimal places, if necessary.
The standard deviation of the sampling distribution of sample means, based on samples of the amounts of weight lost by 72 people on this diet, is approximately 0.695 pounds.
To calculate the standard deviation of the sampling distribution of sample means, we need to use the formula for the standard deviation of a sample mean. This formula states that the standard deviation of the sampling distribution (σ) is equal to the standard deviation of the population (σ) divided by the square root of the sample size (n).
Given that the population standard deviation (σ) is 5.9 pounds and the sample size (n) is 72, we can plug these values into the formula:
Standard Deviation of the Sampling Distribution (σ) = σ / √n
σ = 5.9 pounds
n = 72
Substituting these values, we get:
Standard Deviation of the Sampling Distribution (σ) = 5.9 / √72
To find the standard deviation of the sampling distribution, we need to evaluate the square root of 72. Using a calculator or mathematical software, we find that √72 is approximately 8.49.
Now, let's calculate the standard deviation of the sampling distribution:
Standard Deviation of the Sampling Distribution (σ) = 5.9 / 8.49 ≈ 0.695 pounds (rounded to two decimal places)
Therefore, the standard deviation of the sampling distribution of sample means, based on samples of the amounts of weight lost by 72 people on this diet, is approximately 0.695 pounds.
This value represents the average amount of variation or dispersion in the means of different samples taken from the population. It indicates how much the sample means are likely to deviate from the population mean.
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Find each value
ED=
AB=
Answer:
ED = 57 , AB = 19
Step-by-step explanation:
the midsegment FC is half the sum of the parallel bases , that is
\(\frac{AB+ED}{2}\) = FC
\(\frac{4x+3+18x-15}{2}\) = 38 ( multiply both sides by 2 )
22x - 12 = 76 ( add 12 to both sides )
22x = 88 ( divide both side by 22 )
x = 4
then
ED = 18x - 15 = 18(4) - 15 = 72 - 15 = 57
AB = 4x + 3 = 4(4) + 3 = 16 + 3 = 19
Subtract (4x – 1) from 4(5x + 7)
Answer:
2
Step-by-step explanation:
Ms. Follis and Mr. Jackamonis start in the middle of the football field in the exact same spot. Ms. Follis walks 5 feet directly north. Mr. Jackamonis walks directly east. Ms. Follis and Mr. Jackamonis are now exactly 13 feet apart. How far did Mr. Jackamonis walk?
The distance in the east direction Mr. Jackamonis after Ms Follis walks 5 feet directly north and the distance between them is 13 feet, obtained using Pythagorean Theorem is 12 feet
What is Pythagorean Theorem?Pythagorean Theorem states that the square of the length of the hypotenuse side of a right triangle is equivalent to the sum of the squares of the lengths of the other two sides of the right triangle.
Let a represent the length of the hypotenuse side, and let b and c represent the lengths of the other two sides, then according to the Pythagorean Theorem, we get;
a² = b² + c²
The direction Ms. Follis walks = 5 feet directly north
The direction Mr. Jackamonis walks = Directly east
The distance between Ms. Follis and Mr. Jackamonis = 13 feet apart
The distance Mr. Jackamonis walks, d, can be found using Pythagorean Theorem as follows;
13² = 5² + d²
Therefore;
d² = 13² - 5² = 144
d = √(144) = 12
d = ± 12
Distances are measured using natural numbers, therefore;
d = 12 feet
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Which of the following is not one of the hypothesis tests used in two-factor ANOVA?
a. The main effect of factor A (often called the A-effect). Assuming that factor A is used to define the rows of the matrix, the main effect of factor A evaluates the mean differences between rows. b. The main effect of factor B (called the B-effect). Assuming that factor B is used to define the columns of the matrix, the main effect of factor B evaluates the mean differences between columns. c. The interaction (called the A × B interaction). The interaction evaluates mean differences between treatment conditions that are not predicted from the overall main effects from factor A or factor B. d. The interaction (called the A + B interaction). The interaction evaluates mean differences between treatment conditions that are not predicted from the overall main effects from factor A or factor B.
Your answer: d. The interaction (called the A + B interaction). The interaction evaluates mean differences between treatment conditions that are not predicted from the overall main effects from factor A or factor B.
The option that is not one of the hypothesis tests used in two-factor ANOVA is d. The interaction (called the A + B interaction). The correct term for the interaction in two-factor ANOVA is A × B interaction, which evaluates mean differences between treatment conditions that are not predicted from the overall main effects from factor A or factor B. The other two hypothesis tests in two-factor ANOVA are the main effect of factor A (evaluating mean differences between rows) and the main effect of factor B (evaluating mean differences between columns). In two-factor ANOVA, the matrix is used to organize the data and conduct the statistical analysis.
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Alan has read 70% of a book and he has 15 pages left to read. How many pages are in the book
Answer:
Step-by-step explanation:
10. In \( \triangle A B C, B D=\sqrt{3} \). What is the perimeter of \( \triangle A R C \) ?
To find the perimeter of triangle ARC, we need to determine the lengths of its sides based on the given information.
From the given information, we know that BD = √3. However, we need additional information or measurements to calculate the lengths of the sides of triangle ARC. Without more information, we cannot determine the specific lengths of AR and RC, which are crucial for finding the perimeter.
Therefore, without additional details about the relationship between triangle ABC and triangle ARC or the measurements of other sides or angles, we cannot accurately determine the perimeter of triangle ARC.
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A bakery offers a sale price of 2.55 for 4 muffins.what is the price per dozen?
I hope someone answers fast
And explain what you did
Answer: $7.65 for a dozen/12
Step-by-step explanation: 2.55 x 3
one third of the sum of a number and four
Answer:
\(\frac{1}{3} (n+4)\)
That is what the expression would be
If you go twice as fast, will your stopping distance increase by: A. Two times. B. Three times. C. Four times. D. Five times
If you go twice as fast, your stopping distance will increase by four times (option C).
This relationship is based on the laws of physics and the principles of motion.
When an object is in motion, its stopping distance is influenced by its initial speed, reaction time, and braking capabilities. The stopping distance consists of two components: the thinking distance (the distance traveled during the reaction time) and the braking distance (the distance needed to bring the object to a complete stop).
According to the laws of physics, the braking distance is directly proportional to the square of the initial speed. This means that if you double your speed, the braking distance will increase by a factor of four. In other words, going twice as fast will require four times the distance to come to a stop.
It is important to note that this relationship assumes other factors, such as road conditions and braking efficiency, remain constant. However, in real-world scenarios, these factors may vary and can affect the stopping distance to some extent.
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0.12 as a reduced fraction
Answer:
3/25
Step-by-step explanation:
0.12 multiplied by 100 equals 12
which means 12/100 is 0.12
now simplify
6/50
3/25
liam had a container of oatmeal that contained 5 1/2 cups of oatmeal. Liam ate 4/9 cup of oatmeal every morning before school for a week. How many cups of oatmeal that Liam had left in the container at the end of the five-day week
Answer:
3 5/18 cups of oatmeal are left in the container.
Step-by-step explanation:
4/9 times 5 = 20/9
5 1/2 = 11/2
11/2 - 20/9 = 99/18 - 40/18
= 59/18
= 3 5/18
Answer this for me right now
the revenue from selling items is , and the total cost is . write a function that gives the total profit earned, and find the quantity which maximizes the profit.
Solving for q will give us the optimal quantity that maximizes the profit, a function that gives the total profit earned can be written as:
Profit(q) = (Revenue per item - Cost per item) * q
Assuming that the revenue and cost are functions of the quantity sold (q), the total profit can be calculated as follows:
Profit(q) = Revenue(q) - Cost(q)
To find the quantity which maximizes the profit, we can take the derivative of the profit function with respect to q and set it equal to zero, and then solve for q:
Profit'(q) = Revenue'(q) - Cost'(q) = 0
Solving for q will give us the quantity that maximizes the profit. However, without knowing the specific forms of the revenue and cost functions, we cannot write a specific profit function or find the quantity that maximizes the profit.
In general, the profit function can be written as:
Profit(q) = (Revenue per item - Cost per item) * q
where the revenue per item and cost per item are functions of q. To find the quantity that maximizes the profit, we need to differentiate the profit function with respect to q and set it equal to zero:
Profit'(q) = Revenue'(q) - Cost'(q) = 0
Solving for q will give us the optimal quantity that maximizes the profit.
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Parisian sewer #1 contains 9 fewer gigantic rats—rats as big as cats, some might say—than parisian sewer #2. parisian sewer #2 contains 5 fewer gigantic rats than parisian sewer #3. if there are 56 gigantic rats in all three sewers combined, how many rats are in sewer #1?
There are different kinds of math problem. There will be 11 rats in sewer #1.
What are word problem?The term word problems is known to be problems that are associated with a story, math, etc. They are known to often vary in terms of technicality.
Lets take
sewer #1 = a
sewer #2 = b
sewer #3 = c
Note that A=B-9
So then you would have:
A=B-9
B=C- 5
A+B+C=56
Then you have to do a substitution so as to find C:
(B- 9) + (C-5) + C = 56
{ (C- 5)-9} + (C-5) + C = 56
3C - 19 = 56
3C = 75
B = C- 5
B = 25 - 5
Therefore, B = 20
A = B - 9
= 25 - 9
=11
Therefore, there are are 11 rats in sewer #1
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The number of people who visited a state park over the last nine years is recorded in the table.
Drop Down answers
The visitor data is best modeled by a function.
Linear, Quadratic, Square Root
Based on the model, the state park management should plan for than 400 visitors next year.
Less, More
The visitor data is best modeled by a quadratic function, and the state park management should plan for more than 400 visitors next year.
How to determine the model of the function?To do this, we simply plot the points on a graph.
See attachment for the graph that represents the table.
From the attached graph, we can see that the points on the graph follows an approximately quadratic path
Hence, the visitor data is best modeled by a quadratic function
Also, the state park management should plan for more than 400 visitors next year.
This is so because the range of a quadratic function is the set of all real numbers.
This means that the table can accept a value of 400 (or greater) as one of its data points
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A certificate of deposit earns 0.75% annual interest every three months. The interest is compounded. What is the value of a $32,000 investment after 5 years?
A. $33,221.62
B. $37,157.89
C. $43,099.36
D. $57,795.56
Answer:
Given that certificate of deposits earns 0.75% interest every three months, the value of $25,000 after 8 years will be:
A=P(1+r/100)^nt
where:
A=amount
P=principle
r=rate
t=time
n=number of terms
thus:
from the infomation
$25000, r=0.75%, t=8 years, n=12/3=4
thus
A=25000(1+0.0075/100)^(4*8)
A=25000(1.0075)^32
A=$3175.28
Step-by-step explanation:
some airlines have restrictions on the size of items of luggage that passengers are allowed to take with them. suppose that one has a rule that the sum of the length, width and height of any piece of luggage must be less than or equal to 234 cm. a passenger wants to take a box of the maximum allowable volume. if the length and width are to be equal, what should the dimensions be?
The length, breadth and height will be 78 cm, 78cm, 78cm each.
let consider the length = l
breadth = b
height = h
we are provided that
l + b + h = 234cm .......(1)
Also we have to maximize the volume , provided length is equal to breadth
∴ eqn (1) becomes
2b + h = 234
h = 234 - 2b
also ,
volume(v) = lbh
v = b²(234 - 2b)
v = b²234 - 2b³
now to maximize the volume we take the first derivative of the volume wrt 'b' and place it equal to zero. ( lagrange method )
i.e. d( v)/db = 0
∴ 468b - 6b² = 0
6b² - 468b = 0
6b( b - 78 ) = 0
∴ b = 78 cm
now as length = breadth
l = b = 78 cm
also putting this value in eqn (1)
h = 234 - 2b
h = 78 cm
So , the dimensions will be equal and will be 78cm , 78cm, 78cm each .
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PLEASE Help!! Will give branliest for the correct answer and a brief explanation on how to solve this!
Answer: Well you have to see on the number that is close to the decimal point
Step-by-step explanation:
0.2438
0.4485
0.8641
3.2527
17.9926
Which sequence is geometric?
•1, 5, 9, 13
•2, 6, 8, 10
•5, 7, 9, 11
•4, 8, 16, 32
Answer:
1,
Step-by-step explanation:
now z also a dk4k ak4 smka 4ml 4 LL
We're All Nuts, Inc. sells bags of mixed nuts that are advertised to contain 14.5oz. of nuts. A quality control manager selects a random sample of 16 bags and weighs each bag. To help prevent underfilling, the packing machine is set to provide a mean weight of 14.6oz. with a standard deviation of 0.6oz. One of the bags of nuts weighed 15.1 ounces. Find the percentile for this bag of nuts. Interpret this value.
We find that the percentile is approximately 79.97%. This means that the bag of nuts weighing 15.1 ounces falls in the top 20.03% of all bags of nuts in terms of weight.
To find the percentile for the bag of nuts that weighed 15.1 ounces, we can use the z-score formula and the standard normal distribution. The z-score measures the number of standard deviations an observation is from the mean.
First, we calculate the z-score using the formula:
z = (x - μ) / σ
where x is the observed value, μ is the mean, and σ is the standard deviation. In this case, x = 15.1, μ = 14.6, and σ = 0.6.
z = (15.1 - 14.6) / 0.6 = 0.83
Next, we find the percentile corresponding to the z-score using a standard normal distribution table or a calculator. The percentile value represents the percentage of values below the given observation.
Looking up the z-score of 0.83 in the standard normal distribution table, we find that the percentile is approximately 79.97%. This means that the bag of nuts weighing 15.1 ounces falls in the top 20.03% of all bags of nuts in terms of weight.
In other words, the bag of nuts that weighed 15.1 ounces is heavier than approximately 79.97% of the bags in the sample. It is considered relatively high in weight compared to the other bags, as it is in the upper 20.03 percentile. This information can be useful for quality control purposes, as it indicates that the bag of nuts has a higher weight than most of the bags produced, possibly exceeding the specified target weight of 14.5 ounces.
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Answer my math question I asked so many times I lost most of points by I gave 4 min to answer hurry
Answer:
1 the case is xy 12 2. is h= 4x=8
Step-by-step explanation:
i dont know im just 11 in middle school!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If there is a simple graph with k vertices. prove by induction
that if simple graph has n components then it has at least k-n
edges.
For the inductive step, assuming the statement holds for a graph with n components, where n < k, we consider a graph with (n + 1) components. By removing one vertex from one of the components, we create a new graph with k - 1 vertices and n components. By the induction hypothesis, this new graph has at least (k - 1) - n edges. Adding back the removed vertex and connecting it to the n components creates at least one new edge in each component. Therefore, the total number of edges in the original graph is at least k - 1.
Thus, by induction, it is proven that if a simple graph has n components, it has at least k - n edges.
To prove the statement by induction, we need to establish a base case and an inductive step.
**Base case:**
When the graph has only one component (n = 1), it means that all k vertices are connected, forming a single connected component. In this case, the number of edges in the graph is maximized, and it can be calculated using the formula for a complete graph with k vertices.
The number of edges in a complete graph with k vertices is given by the formula: E = k(k-1)/2.
Since there is only one component, and it is a complete graph, the number of edges in the graph is E = k(k-1)/2.
Now, let's substitute n = 1 in the statement we need to prove:
"If a simple graph has n components (n = 1), then it has at least k - n edges."
Plugging in the values:
"If a simple graph has 1 component, then it has at least k - 1 edges."
From the base case, we can see that the graph indeed has k - 1 edges when it has only one component.
**Inductive step:**
Assume the statement holds for a graph with n components, where n < k. We will prove that it holds for a graph with (n + 1) components.
Let G be a simple graph with k vertices and (n + 1) components. We can remove one vertex from one of the components to create a new graph G'. The new graph G' will have k - 1 vertices and n components.
By the induction hypothesis, G' has at least (k - 1) - n edges.
Now, let's consider the original graph G. When we add back the vertex we removed, it can be connected to any of the n components in G'. This addition of the vertex creates at least one new edge in each of the n components.
Therefore, the total number of edges in G is at least the number of edges in G' plus the number of new edges added by the vertex. Mathematically, it can be expressed as:
Edges(G) ≥ Edges(G') + n
Since Edges(G') + n = ((k - 1) - n) + n = k - 1, we have:
Edges(G) ≥ k - 1
Hence, we have proved that if a simple graph has n components, it has at least k - n edges.
By the principle of mathematical induction, the statement is true for all values of n such that 1 ≤ n < k.
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