The expression that represents the discounted price of the jacket is 0.7x. This means that the discounted price is 70% of the original price, or equivalently, that the discount reduces the price of the jacket by 30%.
What is original price?
In order to determine the sales price, the value of the discount would be subtracted from the original price.
When an item is offered at a discount, the discounted price is usually calculated by subtracting the discount from the original price. In this case, since the discount is 30%, we can find the amount of the discount by multiplying the original price x by 0.3. This gives us 0.3x, which is the amount of money that is being discounted from the original price. To find the discounted price, we subtract this amount from the original price, which gives us:
x - 0.3x = 0.7x
So, the expression that represents the discounted price of the jacket is 0.7x. This means that the discounted price is 70% of the original price, or equivalently, that the discount reduces the price of the jacket by 30%.
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in the chi square test for independence, the null hypothesis and the research hypothesis select one: a. always contradict each other b. always agree with each other c. are never actually stated d. are usually both rejected
In "Chi-Square-test" for the inde-pendence, "re-search-hypothesis" and "null-hypothesis" always contradict each other, the Option(a) is correct.
In the "Chi-Square" test for independence, the "Null-Hypothesis" (H₀) assumes that there is no association between the two categorical variables being tested, while the research hypothesis (Hₐ) proposes that there is a significant association between the variables.
These hypotheses are mutually exclusive and contradictory to each other.
If the "null-hypothesis" is rejected based on the results of the chi-square test, it implies that there is evidence to support the "research-hypothesis", which indicates that there is a significant association between the variables.
Conversely, if "null-hypothesis" is not rejected, it suggests that there is not enough evidence to support the "research-hypothesis", and the conclusion would be that there is no significant association between the variables.
Therefore, the correct option is (a).
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fractions to decimals
Answer: 1 is .4
2. is .6
3 is .5
4 is .375
5 is .18
6 is .71
7 is .16
8 is .66 repeating
9 is .91
and 10 is .25
Step-by-step explanation:
to get all these and fractions to decimals in the future just divide the numerator by the denominator in other words the top number by the bottom number
1): 0.4
2): 0.67 or 0.7
3): 0.5
4): 0.37 or 0.4
5): 0.18
6): 0.42 or 0.5
7): 0.17
8): 0.7
9): 0.97 or 1
10): 0.25
a marketing organization claims that less than 15% of its employees are paid minimum wage. if a hypothesis test is performed that fails to reject the null hypothesis, how would this decision be interpreted? g
If a hypothesis test is performed and fails to reject the null hypothesis, it would mean that there is not enough evidence to support the claim that less than 15% of the marketing organization's employees are paid minimum wage.
Therefore, it would not be concluded that the claim is true. The null hypothesis assumes that the claim is false or that the percentage of employees paid minimum wage is not significantly different from 15%.
The failure to reject the null hypothesis means that the evidence does not contradict the null hypothesis, but it does not necessarily prove it to be true.
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the objective of this study was to determine the prospective relationship between urinary sodium (and potassium) excretion, estimated from the mean of 3 repeated 24-hour urine samples, and risk of clinical cardiovascular disease (cvd) among patients with chronic kidney disease (ckd) a total of 3939 racially and ethnically diverse participants, approximately half of whom had diabetes, were recruited from 7 clinical centers in the united states from 2003 to 2008. participants were eligible for the study if they met age-specific estimated glomerular filtration rate (egfr) criteria of 20 to 70 ml/min/1.73 m2. those with a history of kidney transplant, dialysis for at least 1 month, glomerulonephritis requiring immunosuppression, advanced heart failure, cirrhosis, or polycystic kidney disease were ineligible. study participants were requested to collect 24-hour urine specimens at baseline and the first 2 annual follow-up visits. if either the total urine volume was less than 500 ml at the end of 24 hours or the duration of collection was not between 22 and 24 hours, participants were instructed to recollect the urine sample. urinary sodium and potassium levels were measured by flame emission spectrophotometry study participants attended annual clinic visits and received telephone calls every 6 months between in-person visits. cardiovascular clinical outcomes were assessed using a standard medical event questionnaire at all follow-up contacts. medical records were requested for event verification, and 2 physicians adjudicated each cardiovascular event and classified them as either probable or definite. is this an experimental, quasiexperimental, or observational study?
They simply measured their urinary sodium and potassium levels and followed them for cardiovascular events. Therefore, this is an observational study.
This study is an observational study. The reason for this classification is that the researchers did not manipulate the variables (urinary sodium and potassium excretion) and instead collected data on the participants' natural behaviours and outcomes (risk of clinical cardiovascular disease) over time. In experimental and quasi-experimental studies, researchers actively manipulate variables to assess the cause-and-effect relationships between them, which is not the case in this study.
Therefore, They simply measured their urinary sodium and potassium levels and followed them for cardiovascular events. Therefore, this is an observational study.
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This is an observational study that aims to determine the relationship between urinary sodium (and potassium) excretion and the risk of clinical cardiovascular disease among patients with chronic kidney disease.
This is an observational study aimed at investigating the relationship between urinary sodium (and potassium) excretion and the risk of clinical cardiovascular disease (CVD) among patients with chronic kidney disease (CKD).
The study included 3,939 racially and ethnically diverse participants, approximately half of whom had diabetes, recruited from 7 clinical centers in the United States between 2003 and 2008. Eligible participants had age-specific estimated glomerular filtration rate (eGFR) criteria of 20 to 70 ml/min/1.73 m2 and did not have a history of kidney transplant, dialysis for at least 1 month, glomerulonephritis requiring immunosuppression, advanced heart failure, cirrhosis, or polycystic kidney disease.
The study used a prospective design, where data were collected over a period of time, to estimate the mean of three 24-hour urine samples from each participant.
Urinary sodium and potassium levels were measured using flame emission spectrophotometry, and cardiovascular clinical outcomes were assessed using a standard medical event questionnaire at all follow-up contacts.
Medical records were requested for event verification, and two physicians adjudicated each cardiovascular event and classified them as either probable or definite.
Since the researchers did not intervene or manipulate any variables, this study is an observational study.
The researchers observed and measured the relationship between urinary sodium (and potassium) excretion and the risk of CVD among participants with CKD over a period of time.
The study's findings may provide valuable insights into the relationship between urinary sodium and potassium excretion and CVD risk among CKD patients, which could inform future interventions to reduce CVD risk in this population.
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three percent of the customers of a mortgage company default on their payments. a sample of five customers is selected. what is the probability that exactly two customers in the sample will default on their payments? group of answer choices 0.0003 0.0082 0.0077 0.0008
The probability that exactly two customers in the sample will default on their payments is 0.0082. The answer is option B.
This problem involves using the binomial probability distribution formula. The formula is:
P(X=k) = (n choose k) × [tex]p^k[/tex] × [tex](1-p)^{(n-k)}[/tex]
where:
P(X=k) is the probability of getting k successes
n is the sample size
k is the number of successes
p is the probability of success in one trial
In this case, n = 5, k = 2, and p = 0.03. Plugging in these values, we get:
P(X=2) = (5 choose 2) × 0.03² × 0.97³
= 10 × 0.0009 × 0.91267
= 0.0082 (rounded to four decimal places)
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One computer can process a payroll in 6 hours a new computer can do it in 4 hour how long would it take both computers together
Both computers working together can process the payroll in 2.4 hours.
Let's denote the time it takes for both computers working together to process the payroll as "t".
We can use the formula:
work done = rate x time
where "work done" is the same in both cases, as they are processing the same payroll. Therefore, we can set up an equation using the rates :
1/6 + 1/4 = 1/t
We can simplify the left-hand side of the equation:
2/12 + 3/12 = 1/t
5/12 = 1/t
Multiplying both sides by 12t:
5t = 12
t = 12/5
t = 2.4
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(COMPOUND INTEREST)
-$17,525 deposit, interest at 1/2% for 3 years; find interest earned.
20 points reward
Answer:
Step-by-step explanation:
Principal = 17,525. Rate = 1/2% = 0.005 time,t = 3
Interest, I = principal x rate x time
Interest, I = 17525 x 0.005 x 3
Interest, I = $262.875
1. two six-sided, fair dice are rolled. what are the probabilities of getting one even and one odd number?
The probability of getting one even and one odd number when rolling two six-sided, fair dice is 1/4.
How to find the probability of getting one even and one odd number?To calculate the probability of getting one even and one odd number, we can use the following approach:
There are three possible even numbers on each die (2, 4, and 6) and three possible odd numbers (1, 3, and 5).To get one even and one odd number, we need to choose one even number and one odd number from each die.The number of ways to choose one even number from the first die is 3, and the number of ways to choose one odd number from the second die is also 3.Therefore, the total number of ways to get one even and one odd number is 3 × 3 = 9.The probability of getting one even and one odd number is therefore 9/36 or 1/4 (since there are 36 possible outcomes in total).So the probability of getting one even and one odd number when rolling two six-sided, fair dice is 1/4 or 0.25.
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Explain what values must be known to write the explicit formula for both an arithmetic and geometric sequence?
PLEATHE!!
The explicit formula for an arithmetic sequence is:
an = a1 + (n-1)d
The explicit formula for a geometric sequence is:
an = a1 * [tex]r^{(n-1)}[/tex]
What is arithmetic sequence?
An arithmetic sequence is a sequence of numbers in which each term after the first is found by adding a fixed constant number, called the common difference, to the preceding term.
To write the explicit formula for both an arithmetic and geometric sequence, the following values must be known:
For an Arithmetic Sequence:
The first term (a1) of the sequence.
The common difference (d) between consecutive terms in the sequence.
The explicit formula for an arithmetic sequence is:
an = a1 + (n-1)d
Where:
an is the nth term of the sequence.
a1 is the first term of the sequence.
d is the common difference between consecutive terms.
n is the position of the term in the sequence.
For a Geometric Sequence:
The first term (a1) of the sequence.
The common ratio (r) between consecutive terms in the sequence.
The explicit formula for a geometric sequence is:
an = a1 * r^(n-1)
Where:
an is the nth term of the sequence.
a1 is the first term of the sequence.
r is the common ratio between consecutive terms.
n is the position of the term in the sequence.
Therefore, The explicit formula for an arithmetic sequence is:
an = a1 + (n-1)d
The explicit formula for a geometric sequence is:
an = a1 * [tex]r^{(n-1)}[/tex]
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Sam is making chili for a get-together. His recipe calls for 1 1/2 cups of kidney beans for every 4 cups of chili. He wants to make 12 cups of chili. How many cups of kidney beans should he put in the chili?
Sam should put cups of kidney beans in the chili
If Sam is making chili for a get-together, his recipe calls for 1 1/2 cups of kidney beans for every 4 cups of chili, Sam should put 4 1/2 cups of kidney beans in his 12 cups of chili.
To determine how many cups of kidney beans Sam should put in his 12 cups of chili, we need to use the ratio of 1 1/2 cups of kidney beans for every 4 cups of chili.
First, we need to calculate the number of times the recipe ratio fits into the desired quantity of chili.
12 cups of chili ÷ 4 cups of chili per ratio = 3 ratios of chili
Therefore, Sam needs to use 3 ratios of chili to make 12 cups of chili.
Next, we need to multiply the number of ratios of chili by the number of cups of kidney beans in each ratio:
3 ratios of chili × 1 1/2 cups of kidney beans per ratio = 4 1/2 cups of kidney beans
Note that we can also write 4 1/2 as a mixed number, which is 4 cups and 1/2 cup. Therefore, Sam can use 4 cups of kidney beans and half a cup of kidney beans to make his chili.
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Using trig to find angles.
Solve for x. Round to the nearest tenth of a degree, if necessary.
Answer:
x ≈ 39.5°
Step-by-step explanation:
using the cosine ratio in the right triangle
cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{OP}{NP}[/tex] = [tex]\frac{64}{83}[/tex] , then
x = [tex]cos^{-1}[/tex] ( [tex]\frac{64}{83}[/tex] ) ≈ 39.5° ( to the nearest tenth )
I need help ASAP mean absolute deviation (mad)
The absolute deviation for the observation of 16 in the data-set is given as follows:
5.
How to calculate the mean of a data-set?The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations, which is also called the cardinality of the data-set.
Hence the mean of the data-set in this problem is given as follows:
(19 + 16 + 4 + 9 + 7)/5 = 11.
The absolute deviation of 16 is given by the difference between 16 and the mean of 11, hence:
16 - 11 = 5.
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The ratio of the books in the sample above is representative of the books in a bookcase in the library. If there are 35 yellow books in the bookcase, then how many green books are in the bookcase?
There are 15 green books in the bookcase.
How many green books are in the bookcase?The ratio of yellow books to green books in the sample is 7:3. This means that for every 7 yellow books, there are 3 green books.
If there are 35 yellow books in the bookcase, we can use the ratio to find the number of green books:
7 yellow books : 3 green books
35 yellow books : x green books (where x is the number of green books)
To solve for x, we can use cross-multiplication:
7 yellow books * x green books = 35 yellow books * 3 green books
7x = 105
x = 15
Therefore, there are 15 green books in the bookcase.
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isosceles triangle of area 100 square inches is cut by into an isosceles trapezoid and a smaller isosceles triangle. the area of the trapezoid is 75 square inches. if the altitude of triangle from is 20 inches, what is the number of inches in the length of ?
If an isosceles triangle of area 100 square inches is cut into an isosceles trapezoid and a smaller isosceles triangle. the base of the littler isosceles triangle is 12.5 inches.
Since the triangle is isosceles, the length of the two breaks even with sides is too "b". The equation for the zone of a triangle is (1/2)base x stature, so we have: (1/2)b x 20 = 10 ,b = 10
So the length of the base of the first triangle is 10 inches.
we have to discover the length of the base of the littler isosceles triangle. Let's call this length "x". We know that the range of the trapezoid is 75 square inches, so ready to utilize the equation for the region of a trapezoid:
(1/2)(b1 + b2)h = 75
we know that one of the bases of the trapezoid is rising to the base of the little triangle (which is "x"). The other base of the trapezoid is break even with the contrast between the base of the first triangle (which is 10) and the base of the little triangle (which is "x")
=(1/2)(x + (10 - x))(20) = 75
=200 - 10x = 75=10x = 125
x = 12.5
thus, the base of the isosceles triangle is 12.5 inches.
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julian is making potato salad for a family picnic. at the market, he spends $5.58 on red potatoes and $4.68 on yellow potatoes. if each type of potato costs $0.90 per pound, how many total pounds of potatoes does he buy?write your answer as a whole number or decimal.
In total Julian buys about 11.4 pounds of potatoes by spending $5.58 on red potatoes and $4.68 on yellow potatoes.
To find the total amount of potatoes that Julian buys, divide the total cost of each type of potato by the cost per pound.
Red potatoes cost $5.58 and cost $0.90 per pound, so in total Julien buys the next few pounds of red potatoes.
5.58 ÷ 0.90 ≈ 6.2 pounds (rounded to one decimal place)
Similarly, yellow potatoes cost him $4.68 and cost $0.90 per pound, so the total pounds of yellow potatoes that Julian buys would be:
4.68 ÷ 0.90 ≈ 5.2 pounds (rounded to one decimal place)
To find the total amount of potatoes that Julian bought, add the pounds of red potatoes and the pounds of yellow potatoes.
6.2 + 5.2 ≈ 11.4 pounds (rounded to one decimal place)
So in total Julian buys about 11.4 pounds of potatoes.
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You are applying for an 80/20 mortgage to buy a house costing $175,000.
The first (80%) mortgage has an interest rate of 4.75%, and the second (20%)
mortgage has an interest rate of 7.525%. Both the first mortgage and the
second mortgage are 30-year fixed-rate mortgages. What will the total
amount of the mortgage be?
OA. $340,521.93
B. 304,986.23
C. $321,948.90
OD. $351,226.80
SUBMIT
The closest answer to the total amount of the mortgage is option D: $351,226.80.
What is percentage?
Percentage is a way of expressing a number as a fraction of 100. It is denoted by the symbol "%". The term "percent" comes from the Latin word "per centum", which means "per hundred".
To calculate the total amount of the mortgage, we need to first calculate the amount of each mortgage.
For the first (80%) mortgage, we can calculate the amount by multiplying the house price by 80%:
$175,000 x 0.80 = $140,000
For this mortgage, we have a 30-year fixed rate of 4.75%. We can use an online mortgage calculator or formula to calculate the monthly payment:
M = P [ i(1 + i)^n ] / [ (1 + i)^n – 1]
where:
M = monthly payment
P = principal (amount of the loan)
i = interest rate per month (annual rate divided by 12)
n = total number of payments (number of years multiplied by 12)
Using this formula, we get:
M = $140,000 [ 0.0475/12 (1 + 0.0475/12)^360 ] / [ (1 + 0.0475/12)^360 – 1]
M = $755.67
For the second (20%) mortgage, we can calculate the amount by multiplying the house price by 20%:
$175,000 x 0.20 = $35,000
For this mortgage, we have a 30-year fixed rate of 7.525%. Using the same formula as above, we get:
M = $35,000 [ 0.07525/12 (1 + 0.07525/12)^360 ] / [ (1 + 0.07525/12)^360 – 1]
M = $250.09
To calculate the total amount of the mortgage, we simply add the two monthly payments:
$755.67 + $250.09 = $1,005.76
Finally, we multiply this monthly payment by the total number of payments (30 years multiplied by 12 months per year) to get the total amount of the mortgage:
$1,005.76 x 360 = $361,475.77
Therefore, the closest answer to the total amount of the mortgage is option D: $351,226.80.
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the major disadvantage of crude rates is that: group of answer choices the do not permit comparison of populations that vary in composition. they may not allow for comparison of populations that differ in size. all of the above. the are difficult to calculate from available data sources.
The major disadvantage of crude rates is that option (a) they do not permit comparison of populations that vary in composition
Crude rates are a simple method for calculating the frequency of an event or condition in a population, usually expressed as a rate per a specific population size or time period. However, they have a major limitation in that they do not account for differences in population characteristics or composition, such as age, sex, or socioeconomic status.
This means that crude rates may not accurately reflect the true differences in the occurrence of the event or condition between different populations. To overcome this limitation, age-standardized rates or other adjusted measures can be used to compare populations with different compositions.
Therefore, the correct option is (a) they do not permit comparison of populations that vary in composition
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Can someone explain how to go about this? Anything helps, thank you!
The area of the shaded region between the circle and the rectangle can be found to be 30.6 units ².
How to find the area ?First, find the area of the rectangle. The Length would be 6 because if the midpoint to the edge of the circle is 3, then the midpoint to the edge of the circle on the left would be 3 as well:
= 3 + 3
= 6
The same is true for the width which would be 8 because the y value is 4 from the midpoint so the width is twice that and so is 8.
The radius of the circle would be 5 because this is the x value to the edge of the circle from the middle of the cirle.
The area of the shaded region is:
= Area of circle - Area of rectangle
= ( π x radius ²) - ( Length x Width)
= ( π x 5²) - ( 6 x 8 )
= 30.6 units ²
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Three machines are used to produce nails. The table displays the total number of nails produced by the 3 machines
over different lengths of time.
Nail Production with 3 Machines
Time (minutes)
Number of Nails
(thousands)
15
16
45
48
55
593
ON
If each machine produces nails at the same rate, how many nails can 1 machine produce in 1 hour?
nails
One machine can produce 600,000 nails in one hour.
Finding the total number of nails produced by the three machines in a minute and dividing that number by three to obtain the number of nails produced by a single machine in a minute are the first two steps in the solution to this problem.
The number of nails produced by a single machine in an hour can then be calculated by multiplying that number by 60.
Now, we add up the total number of nails produced during :
(15 + 16 + 45 + 48 + 55 + 59 + 3) / 7 = 30
To find the number of nails produced by one machine in one hour, we multiply by 60: 10,000 x 60 = 600,000
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Identify the graph of g(x)=3x^2-24x+45
The graph of an equation can be identified by looking at the characteristics of the equation, such as the order.
Quadratics
The equation given is quadratic because the highest exponent is 2; this means the equation has an order of 2. All equations with an order of 2 are quadratic equations. Quadratic equations form parabolas, which look like a U. Additionally, the leading coefficient is positive. This means that the parabola will open upwards, with the vertex being the minimum of the graph.
Other Characteristics
We can find more information from the equation to help us find the graph. Specifically, we can find the y-intercept. To find the y-intercept, simply plug 0 in for x and solve.
g(0) = 3(0)² - 24(0) + 45g(0) = 45This means that the y-intercept is 45.
Additionally, to find the x-coordinate of the vertex, we can use the equation -b/(2a).
[tex]\frac{-b}{2a}[/tex] = [tex]\frac{24}{6}[/tex] = 4The x-value of the vertex is 4. With all of this information, we can identify what the graph will look like. However, if you need to find the full graph, you can plug x-values into the equation, solve for y, and then plot the coordinate pairs. Below is a picture of the graph.
Find the volume of the prism.
The volume is
cubic feet.
Answer: 8/125 or 0.064
Step-by-step explanation:
volume of a cube is w^3
(2/5)*(2/5)*(2/5)
8/125 or 0.064
what is the independent variable? 1 point the variable that you purposely change the variable that is being observed the variable that is not changed
Independent variable is the variable that is being purposely changed by the researcher in an experiment to observe its effect on the dependent variable.
It is the variable that is manipulated or altered to test a hypothesis or research question.
The independent variable is the variable that you purposely change in an experiment to observe the effect it has on the dependent variable.
It is also known as the manipulated variable because it is the one that is manipulated or altered by the researcher in order to study the effect it has on the dependent variable.
Investigate the effect of fertilizer on plant growth, we would manipulate the amount of fertilizer that the plants receive. In this case, the amount of fertilizer would be the independent variable because it is the variable that we are purposely changing.
The dependent variable, in this case, would be the plant growth because it is the variable that we are observing and measuring to see if there is any change.
It is important to note that the independent variable is not always the only variable that can affect the dependent variable.
There may be other variables, known as extraneous variables, that could also have an effect on the dependent variable.
In order to control for these variables, researchers will often use control variables or hold them constant in their experiments.
This allows them to isolate the effect of the independent variable on the dependent variable.
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Rudy too a job through an employment agency. The job pays $75.9K per year.
He must pay a fee to the employment agency. The fee is 40% of his first 3
week's pay. How much money must Rudy pay the agency, to the nearest cent.
1. $30,360
2. $1,459.62
3. $1,751.54
4. $4,378.85
Answerabout 51/52 weeks in ayear
75,000/52=1459.615385
1459.615385(3)=4378.846155
40% of 4378.846155=1751.538462
$1,751.54
answer is 3
Step-by-step explanation:
19.
Solve the problem.
2
Find the critical value XR corresponding to a sample size of 5 and a confidence
level of 98%.
(1 point)
O11.143
00.297
13.277
00.484
The critical value of the chi-square distribution corresponding to a sample size of 5 and a confidence level of 98% is given as follows:
0.297 and 13.277.
How to obtain the critical value?To obtain a critical value, we need three parameters, given as follows:
Distribution.Significance level.Degrees of freedom.Then, with the parameters, the critical value is found using a calculator.
The parameters for this problem are given as follows:
Chi-square distribution.1 - 0.98 = 0.02 significance level.5 - 1 = 4 degrees of freedom.Using a chi-square distribution calculator, the critical values are given as follows:
0.297 and 13.277.
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a stone pyramid in egypt has a square base that measures 140 m on each side. the height is 91 m. what is the volume of the pyramid?
the volume of the pyramid is approximately 593,866.67 cubic meters.
To find the volume of the pyramid, we first need to use the formula for the volume of a pyramid, which is:
[tex]V = \frac{1}{3} * base area * height[/tex]
Since the pyramid has a square base, the base area can be found by multiplying the length of one side by itself:
base area = 140 m * 140 m = 19,600 m²
Now we can plug in the values for the base area and height into the formula:
V = (1/3) * 19,600 m^2 * 91 m
V = 1/3 * 1,781,600 m³
V = 593,866.67 m³
Therefore, the volume of the pyramid is approximately 593,866.67 cubic meters
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The volume of the pyramid is approximately 594,533.33 cubic meters.
To find the volume of a stone pyramid in Egypt with a square base that measures 140 meters on each side and a height
of 91 meters, you'll need to use the formula for the volume of a pyramid:
Volume = (1/3) × Base Area × Height
Calculate the base area by squaring the side length:
Base Area = Side × Side = 140 m × 140 m = 19,600 m²
Multiply the base area by the height:
Base Area × Height = 19,600 m² × 91 m = 1,783,600 m³
Multiply the result by (1/3) to get the volume:
Volume = (1/3) × 1,783,600 m³ = 594,533.33 m³ (rounded to two decimal places)
So, the volume of the pyramid is approximately 594,533.33 cubic meters.
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can yall help me with this homework question can yall also show how you did it please otherwise my teacher wont give me points. and yes I will give you 40 whole points for this!
The area of the figure is 72 m².
the goal of analysis of variance (anova) is to a. detect differences in treatment variances (or variances for different populations). b. detect differences in treatment means (or means for different populations). c. analyze the average variances for different populations. d. analyze the variances of the variances for different populations
The goal of analysis of variance is to analyze the variances of the variances for different populations. So, option b is right choice.
Analysis of variance (ANOVA) is a statistical technique used to test the null hypothesis that there is no difference between the means of two or more populations.
ANOVA is used to compare the means of different groups of data to determine if there is a statistically significant difference between them.
ANOVA can be used to compare the means of two or more samples and determine if there is a statistically significant difference between them.
The null hypothesis that there is no difference between the means of the two or more populations.
The F-statistic, which is a ratio of the variance between groups and the variance within groups.
Compare the F-statistic to the critical F-value from the F-Table.
Reject or fail to reject the null hypothesis based on the comparison.
Interpret the results of the ANOVA test.
It detect differences in treatment means (or means for different populations).
So option d is right choice.
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Find if the table is linear or quadratic or neither
For table 14, the table is neither.
Option C is correct.
For table 15, the table is neither.
Option C is correct.
How do we calculate?Table 14:
The difference between 22 and 48 is -26
The difference between 39 and 22 is 17
The difference between 40 and 39 is 1
The difference between 42 and 40 is 2
The difference between 42 and 42 is 0
Because the differences are not constant, the table is neither linear nor quadratic.
For table 15, we check if the difference in y-values is constant:
The difference between 4 and 1 is 3
The difference between 1 and 1 is 0
The difference between 0 and 1 is -1
The difference between 1 and 4 is 3
The difference between 4 and 9 is 5
The difference between 9 and 16 is 7
Because the differences between y-values are not constant, the table is neither linear nor quadratic.
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HELP!! VIEW PHOTO THANKS!!
Step-by-step explanation:
Total people surveyed = 246
total female = 122
divorced = 15 + 13 BUT the 13 was already counted in 'female'
soooo
female OR divorced = 122 + 15 out of 246 = 137/246 = .5569
4. Find the approximate area of the shaded part of the circle. Use 3.14 for
cm
062.8 cm²
06.28 cm²
012.56 cm²
125.6 cm
Using the circle area formula we know that the required area of the shaded region is (A) 62.8 cm² respectively.
What is a circle?All points in a plane that are at a specific distance from a specific point, the center, form a circle.
In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
A circle is a closed curve that extends outward from a set point known as the center, with each point on the curve being equally spaced from the center.
Area of the shaded region:
πr²
Now, insert values:
When r = 6 cm,
πr²
π6²
π36
113.04 cm²
When r = 4 cm,
πr²
π4²
π16
50.24 cm²
Now, the area of the shaded region: 113.04 - 50.24 = 62.8 cm²
Therefore, using the circle area formula we know that the required area of the shaded region is (A) 62.8 cm² respectively.
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Correct question:
Find the approximate area of the shaded part of the circle. Use 3.14 for
cm
a. 62.8 cm²
b. 6.28 cm²
c. 12.56 cm²
d. 125.6 cm
