Answer:
B,E,C
E,D, maybe G
Step-by-step explanation:
Colliers lie on a straight line
If X takes on one of the values 1,2,3,.... , and F is a known function, how would you obtain P(X = i)?
To obtain P(X = i), you would need to use the probability function for X.
What do we mean by probability function?The probability function, also known as the probability mass function (PMF), is a function that gives the probability that a discrete random variable is exactly equal to some value. The probability function for X is denoted as P(X = x), where x is one of the possible values that X can take on.
In this case, the possible values that X can take on are 1, 2, 3, ..., and we want to find the probability that X is equal to i. Therefore, we would need to use the probability function for X and plug in i for x:
P(X = i) = F(i)
This will give us the probability that X is equal to i, given the function F. It is important to note that the probability function for X must satisfy two conditions:
1. P(X = x) ≥ 0 for all x
2. ∑P(X = x) = 1
This means that the probability of any possible value for X must be greater than or equal to 0, and the sum of the probabilities of all possible values for X must be equal to 1.
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HELP pls will mark you the brainliest.
Answer:
B
Step-by-step explanation:
All you have to do is analyze the formula that fits, and it is easier while using the table, bonus that the answers for the second table are different. That's what I have done.
Instructors led an exercise class from a raised rectangular platform at the front of the room. The width of the platform is (x+4) meters long and the area of the rectangular platform is 3x^2+10x−8. Find the length of the platform
The length of the platform is given by the expression -2 + sqrt(3x^2 + 10x) meters.
Let's start by using the formula for the area of a rectangle, which is:
Area = length x width
We are given that the width of the platform is (x+4) meters, so we can write:
Area = length x (x+4)
We are also given that the area of the platform is 3x^2+10x−8, so we can set these two expressions equal to each other and solve for the length:
3x^2+10x−8 = length x (x+4)
Expanding the right side, we get:
3x^2+10x−8 = length x^2 + 4length
Subtracting 4length from both sides, we get:
3x^2+10x−8−4length = length x^2
Rearranging, we get a quadratic equation:
length x^2 + 4length − 3x^2 − 10x + 8 = 0
To solve for length, we can use the quadratic formula:
length = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = 1, b = 4, and c = -3x^2 - 10x + 8. Plugging in these values, we get:
length = (-4 ± sqrt(4^2 - 4(1)(-3x^2 - 10x + 8))) / 2(1)
Simplifying under the square root:
length = (-4 ± sqrt(16 + 12x^2 + 40x - 32)) / 2
length = (-4 ± sqrt(12x^2 + 40x)) / 2
length = (-4 ± 2sqrt(3x^2 + 10x)) / 2
length = -2 ± sqrt(3x^2 + 10x)
Since the length must be positive, we take the positive square root:
length = -2 + sqrt(3x^2 + 10x)
Therefore, the length of the platform is given by the expression -2 + sqrt(3x^2 + 10x) meters.
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the function v ( t ) = √ 9 − t , 0 ≤ t ≤ 9 is the velocity in m/s of a particle moving along the x-axis. what is the particle's position at time t = 9 seconds if s ( 0 ) = 9 ?
The required answer is , the particle's position at time t = 9 seconds is 15 meters along the x-axis.
To find the particle's position at time t = 9 seconds, given the velocity function v(t) = √(9 - t) and the initial position s(0) = 9, we need to integrate the velocity function and then use the initial condition to find the position function s(t).
Step 1: Integrate the velocity function
∫v(t) dt = ∫√(9 - t) dt
We also known the initial position of the particle = 9
Step 2: Use substitution method
Let u = 9 - t, then du = -dt
So, the integral becomes: -∫√u du
Step 3: Integrate
-∫√u du = -2/3 * u^(3/2) + C = -2/3 (9 - t)^(3/2) + C
Step 4: Find the constant C using the initial condition s(0) = 9
9 = -2/3 (9 - 0)^(3/2) + C
C = 9 + 6 = 15
Step 5: Write the position function s(t)
s(t) = -2/3 (9 - t)^(3/2) + 15
Step 6: Find the position at time t = 9 seconds
s(9) = -2/3 (9 - 9)^(3/2) + 15 = 15
Therefore, the position function of the particle is: s(t) = -2/3(9-t)^(3/2) + 15 Plugging in t = 9, we get: s(9) = -2/3(9-9)^(3/2) + 15 s(9) = 15 So the particle's position at time t = 9 seconds , 15 meters.
So, the particle's position at time t = 9 seconds is 15 meters along the x-axis.
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.Question 2 460 households were surveyed out of which 372 households have internet fiber cable, what is the up to 3 decimal places)
The proportion of households with internet fiber cable is approximately 0.808.
1. Calculate the proportion:
The proportion of households with internet fiber cable can be calculated by dividing the number of households with internet fiber cable by the total number of households surveyed.
In this case, there are 372 households with internet fiber cable out of 460 households surveyed.
Proportion = 372/460 ≈ 0.808 (rounded to three decimal places)
2. State your answer:
The proportion of households with internet fiber cable is approximately 0.808, or 80.8% (rounded to the nearest whole number).
The calculation is straightforward. You divide the number of households with internet fiber cable (372) by the total number of households surveyed (460) to find the proportion. In this case, the proportion is approximately 0.808, which means that about 80.8% of the surveyed households have internet fiber cable.
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IJ is dilated by a scale factor of 2 to form I' J'. I' J' measures 58. What is the measure of IJ?
The measure of IJ is 29, when IJ is dilated by a scale factor of 2 to form I' J', and I' J' measures 58. Geometric figures in two or three dimensions can be expanded and contracted using dilation mathematics.
What is meant by dilation?Dilation refers to the change in size without a change in shape of an object. The scale factor may also cause the object's size to either increase or decrease.
Dilation is hence the process of resizing or altering an object. It is a transformation that makes the objects smaller or larger by applying the provided scale factor. It is a transformation that makes the objects smaller or larger by applying the provided scale factor. The pre-image is the original figure, while the image is the new figure created as a result of dilation. Dilation comes in two varieties:
As an object experiences expansion, its size expands.
Contraction is the process of a thing getting smaller.
Given:
I'J' is IJ with the scale factor of 2.
so (IJ) × 2= (I'J)
(IJ) × 2 = 58
58 ÷ 2 = 29
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PLEASE ANSWER!!! NEED HELP WITH EXPLANATION!!!
Answer:
27.37 and 9.18
Step-by-step explanation:
(4)
Using the cosine ratio in the right triangle
cos64° = \(\frac{adjacent}{hypotenuse}\) = \(\frac{12}{x}\) ( multiply both sides by x )
x × cos64° = 12 ( divide both sides by cos64° )
x = \(\frac{12}{cos64}\) ≈ 27.37 ( to the nearest hundredth )
(5)
Using the sine ratio in the right triangle
sin35° = \(\frac{opposite}{hypotenuse}\) = \(\frac{x}{16}\) ( multiply both sides by 16 )
16 × sin35° = x , then
x ≈ 9.18 ( to the nearest hundredth )
Four different linear functions are represented below.
(a) Which function's graph is the least steep?
(b) Which functions have graphs with slopes less than - 3?
(Check all that apply.)
(c) Which function has the graph with the greatest y-intercept?
(a) Function 1 graph is the least steep.
(b) The functions that have graphs with slopes less than -3 are Function 2 and Function 4.
(c) Function 2 has the greatest y-intercept
Which function's graph is the least steep?Function 1
For function 1, we can find the slope (m) and y-intercept (b) using the graph:
slope = (y2-y1)/(x2-x1)
Using the two points on the graph: x1 = 0, y1 = 2; x2 = 1, y2 = 3
slope = (3-2)/(1-0) = 1
The y-intercept (b) is the value of y when x = 0. From the graph when x = 0, y = 2.
Thus, y-intercept (b) = 2
Function 2
For function 2, we can find the slope (m) and y-intercept (b) using the table:
slope = (y2-y1)/(x2-x1)
Picking any two points on the table: x1 = 0, y1 = 5; x2 = 1, y2 = 3
slope = (3-5)/(1-0) = -2
y-intercept (b) = 5
Function 3
For function 3, y = 4x - 1.
The general form of the equation of a line is y = mx + b,
where m is the slope and b is the y-intercept
Thus, slope = 4 and y-intercept = -1
Function 4
slope = -5 and y-intercept = -1
(a) Since slope is a measure of steepness. Thus, the function with the lowest slope will be the least steep.
Thus, the graph of Function 1 is the least steep.
Note: The sign is not considered i.e. 1 is less than -3.
(b)Function 2 and Function 4 have graphs with slopes less than -3.
Note: In the context of slopes, a slope of -3 is steeper than a slope of -2.
(c) Function 2 has the greatest y-intercept
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Could you please solve this problem? Thank you so much.
Step-by-step explanation:
the answer is in the image above
In order to study the mean video views of people on his website, Richard samples the population by dividing the viewers by age and randomly selecting a proportionate number of viewers from each age group. Which type of sampling is used
Using sampling concepts, it is found that stratified sampling is used.
How are samples classified?Samples may be classified as:
Convenient: Drawn from a conveniently available pool.Random: All the options into a hat and drawn some of them.Systematic: Every kth element is taken. Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.In this problem, the population is divided into groups according to their ages, then equal proportions of each group are taken, hence stratified sampling is used.
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a repair charges by the hour the amount of money they charges is below what equation does the repair service use to charges customer
Answer:
y=(Amount per hour)x+(Amount they charge to be there)
WHOEVER JUST HELPED ME OUT THANKS!!!!
y=9x+3
2x+3y=20
Answer:
no problem
Step-by-step explanation:
to easy
Brooke bought a condominium for $413,600. She made a 9% down payment and financed the remaining amount using a 25-year fixed-rate mortgage at 5. 2%. The monthly payment is $2,244. Brooke will pay for one discount point, a 0. 75% origination fee, the brokerage fee, state documentary taxes on the deed and the mortgage, and the intangible tax. • Discount points equal 1% of the mortgage amount. Documentary stamp tax on deed is $0. 70 per $100 or portion thereof. • Documentary stamp tax on mortgage is $0. 35 per $100 or portion thereof. • Mortgage broker fee is $175 plus 5% of the mortgage amount. • Intangible tax is 0. 2% of the mortgage amount. What is the total amount of the principal, interest, down payment, and fees described for Brooke's condominium? (4 points) $743,687. 00 $807,569. 73 $481,369. 73 $740,969. 73
The total amount of the principal, interest, down payment, and fees described for Brooke's condominium is $1,154,091.59
Find out the total amount of the principal and interest down payment, and fees?The first step is to calculate the mortgage amount, which is the purchase price minus the down payment:
Mortgage amount = $413,600 - 9% of $413,600 = $376,576
Next, we need to calculate the total cost of the fees and charges:
Discount points = 1% of $376,576 = $3,766
Origination fee = 0.75% of $376,576 = $2,823.42
Documentary stamp tax on deed = $0.70 per $100 or portion thereof, so for $413,600 it would be:
$0.70 * ($413,600 / $100) = $2,895.20
Documentary stamp tax on mortgage = $0.35 per $100 or portion thereof, so for $376,576 it would be:
$0.35 * ($376,576 / $100) = $1,318.02
Brokerage fee = $175 + 5% of $376,576 = $19411.8
Intangible tax = 0.2% of $376,576 = $753.15
Now we can calculate the total cost of the principal and interest payments over the life of the mortgage. We'll use a mortgage calculator to do this, based on the mortgage amount, interest rate, and term:
Total mortgage payments = $2,244 * 12 months * 25 years = $673,200
Finally, we can add up all of these amounts to get the total cost of the principal, interest, down payment, and fees:
Total cost = Purchase price + Down payment + Mortgage payments + Discount points + Origination fee + Documentary stamp tax on deed + Documentary stamp tax on mortgage + Brokerage fee + Intangible tax
Total cost = $413,600 + $37,224 + $673,200 + $3,766 + $2,823.42 + $2,895.20 + $1,318.02 + $19,411.80 + $753.15
Total cost = $1,154,091.59
Therefore, we got a total cost of $1,154,091.59
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A 3.6 metre long carpet that costs $67.14 expressed in$/m
Step-by-step explanation:
well, 3.6 meters cost $67.14
how much is 1 meter ?
right !
67.14 / 3.6 = $18.65
so, the price in $ per meter or $/m is $18.65.
Tell which sides and angle of the traingle are congruent
Answer:
∡R and ∡T
Sides RS and TS
Step-by-step explanation:
Since it's given that ∡R and ∡T are both acute angles, and there aren't any markers on the angle indicators, this lets us know that they're both congruent. Since these angles are congruent, the distance between them and S will be congruent as well.
rawing a causal diagram. (a) Draw a causal diagram for the research question ?do long shift hours make doctors give lower-quality care?? that incorporates the following features (and only the following features): i. Long shift hours ( "Long Shift") affect how tired doctors are ("Tiredness") affects the quality of care ("Quality of Care"). ii. How long shifts are is often decided by the characteristics of the hospital the doctor works at ("Hospital Characteristics"). There are plenty of things about a given hospital that also affect the quality of care, like its funding level, how crowded it is, and so on. iii. A new policy that reduces shift times may be implemented at a hospital (assumed to be determined by some unobservable change in policy preferences) but this policy does not affect the quality of care ("Policy"). b) Suppose we have a cross-sectional data set across different hospitals. This data set contains the hospital-level observations about (1) the quality of care ("Quality of Care"), (2) the average shift hours of doctors ("Shift hours"), (3) the survey result on how tired doctors are on average at the hospital, (4) various hospital characteristics ("Hospital Characteristics"), (5) Measurement of a policy that regulates shift-times, which is assumed to be randomly determined ("Policy"). We assume that the causal relationship between shift hours to the quality of care can be described with a linear regression model (In reality, they may be non-linear). 1. Suppose we regress "Quality of Care" on constant and "Shift Hours." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 2. Suppose we regress "Quality of Care" on constant, "Shift Hours," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 3. Suppose we regress "Quality of Care" on constant, "Shift Hours," "Tiredness," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Explain what the estimated coefficients on "Shift Hours" and "Tiredness" represent. 4. Suppose we regress "Quality of Care" on constant and "Policy." Can we estimate the causal effect of changing a shift-hours policy on the quality of care? Why or why not? 5. Suppose we do not observe "Hospital Characteristics" in the data set. Discuss how we can estimate the causal effect of changing the shift hours on the quality of care. [Hint: can we use the instrumental variable estimation?]
The effect estimation requires more than simple regressions of "Quality of Care" on "Shift Hours" (Part 1) or with "Hospital Characteristics" (Part 2). Including "Tiredness" (Part 3) or using variable (Part 5) is necessary.
To estimate the causal effect of changing shift hours on quality of care, several factors must be considered. Regression analysis with just a constant and "Shift Hours" (Part 1) fails to account for confounding variables, leading to biased estimates. Including "Hospital Characteristics" (Part 2) still overlooks omitted variable bias and endogeneity issues.
However, by adding "Tiredness" to the regression (Part 3), the direct and indirect effects of shift hours on quality of care can be estimated. The coefficient of "Shift Hours" represents the direct causal effect, while the coefficient of "Tiredness" captures the mediating effect. Regressing "Quality of Care" solely on "Policy" (Part 4) neglects confounders.
When "Hospital Characteristics" are unobserved, instrumental variable estimation (Part 5) can address endogeneity by identifying an instrumental variable unrelated to quality of care but affecting shift hours.
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What is the next step to solve this equation?
n - 4 = -2
Answer:
add 4 to both sides of the equation
Step-by-step explanation:
If jake runs 3 miles in 36 minutes how many miles could he run in 60 minutes
Answer:
5 miles
Step-by-step explanation:
We will use the method of cross multiplying and dividing.
You will multiply 60 x 3
Then, take the answer (180) and divide it by 36.
That will give you 5 and your answer.
solve for k
4k=10+2k
country x can produce 1,000 units of food and 2,000 units of clothes. country y can produce 1,000 units of food and 1,000 units of clothes. in order to maximize trade according to the principles of comparative advantage,
In order to maximize trade according to the principles of comparative advantage, the option most suitable from the following is
country Y should produce food and import clothes from country X.
What do you mean by statistics?The science of statistics focuses on creating and researching strategies for gathering, analyzing, interpreting, and presenting empirical data.
What are the 4 basic elements of statistics?The four components of a descriptive statistics problem are sample size, necessary variables, numerical summary tools, and conclusions.
What are the 5 main statistics?The maximum and minimum values in the data set, the lower and upper quartiles, and the median make up a summary's five values. Minimum value, lower quartile (Q1), median value (Q2), upper quartile (Q3), and maximum value are all listed together in this sequence.
From the above explanation we get to know
the solution to the above question is B
country Y should produce food and import clothes from country X.
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Driving at a constant speed, Reggie travels 300 kilometers in 1 hour. What is Reggie’s speed in kilometers per hour? Reggie drives at a speed of (_____) kilometers per hour. i will mark brainlist i need it asap
Answer:
300 kilometers per hour
Step-by-step explanation:
300 kilometers x 1 hour = 300 kilometers/hour
Step-by-step explanation:
ID: 420 891 2125 code: 8Qv5ZX join hornny girls
1. David wants to do a research project on the number of lightning strikes there have been in his home town of Little Rock Arkansas over the past 50 years to see if it correlated with the amount of rainfall. To do this he needs to access to National Weather Service's database. This is an example of what type of data?
Group of answer choices
Secondary Data
Unstructured Data
Qualitative Data
Discrete Data
2
The Moda Center is holding a concert tonight and the attendance was 17,728/21,000 total seats. This is an example of which type of data?
Group of answer choices
Discrete Data
Continuous Data
Structured Data
External Data
3
Kellog's is doing a survey of their customers on which kind of cereal is their favorite. This is an example of which type of data?
Group of answer choices
Qualitative Data
Quantitative Data
Unstructured Data
Secondary Data
could use help on these
The correct answer is C. The Mode.
What is data in math?Data is the collection of data term that is organized and formatted in a specific way it's typically contains fact observation or statistics that are collected through a process of measurement or research data set can be used to answer question and help make informed decision they can be used in a variety of ways such as to identify trends on cover patterns and make prediction.
This measure of centre is most meaningful when the data is qualitative because it shows the value that appears most frequently in the data set. The mode can be used to identify the most popular item or most commonly occurring outcome. It is the only measure of centre that can be used for qualitative data, as the other measures (mean, median, and range) require numerical data.
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Determining the location of a terminal point given the signs of Determine the quadrant in which the terminal side of 0 lies. (a)sine < 0 and cot 0 < 0 (Choose one) (b) cos > 0 and esce < 0 (Choose one) quadrant I quadrant II quadrant III quadrant IV ?
Based on the given information, the terminal side of angle 0 lies in quadrant III.
To determine the quadrant in which the terminal side of angle 0 lies based on the given information, we can analyze the signs of the trigonometric functions:
(a) Since sine < 0 and cotangent < 0, we can determine the quadrant as follows:
Sine < 0 implies that the y-coordinate (vertical component) of the point on the unit circle corresponding to angle 0 is negative.
Cotangent < 0 implies that the x-coordinate (horizontal component) of the point on the unit circle corresponding to angle 0 is negative.
In quadrant III, both the x and y-coordinates are negative. Therefore, quadrant III is the correct answer in this case.
(b) The information provided in this option is incorrect. "esce" is not a recognized trigonometric function, and "cos > 0" does not provide enough information to determine the quadrant.
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i really need help asap
Answer:
D (-3, 1)
Step-by-step explanation:
PLS HELP ASAP!!!!!!!
Let and stand for any two different rational numbers. If ∣∣∣∣<∣∣∣∣, then what else must be true?
1. is less than .
2. On a number line, is to the left of .
3. The opposite of is greater than the opposite of .
4. is closer to 0 than is.
Answer:
3
Step-by-step explanation:
because say is y is 8 and z is 4 y has to. be greater than x
Answer:
Step-by-step explanation:
3
PLS HELP!!!! 100 PTS I ONLY HAVE 5 MINS!!!
The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than a certain number of inches.
Write two different expressions to represent the area of this rectangle.
Answer:
Area= 2(x-3)
Area= (x-3)2
Step-by-step explanation:
not sure if that's right but I think it is
Assume your phone bill averages $165 a month and you have a car payment that is $505 per month. You also spend about $150 a week on food. How much are your monthly expenses?
Answer:
1270 a month on expenses
Answer:
1270 a month
Step-by-step explanation:
There is 4 weeks for month so you multiply 150 x 4 = 600 and just add 165 and 505 which is equal to 1270
Solve for c
c/-1 + 9 = 0
Explain how the quotient of powers was used to simplify this expression
Answer:
See explanation
Step-by-step explanation:
Given:
5⁴/25 = 5²
25 = 5²
Then,
5⁴ / 25
= 5⁴/5²
Note:
• multiplication sign means addition in indices
• Division sign means subtraction in indices
Both numerator and denominator have the same base, so you'll pick one of the bases and subtract the powers
So,
5⁴/5²
= 5^(4 - 2)
= 5^(2)
= 5²
Therefore,
5⁴ / 25 = 5²
jason colors a rectangle that is 9 inches long and 6 inches wide how many sqaure inches does jason color
Answer:
54
Step-by-step explanation:
9x6= 54 inches²