The required perimeter is 25+√61 units.
How to find perimeter?We can find the distance between each pair of consecutive points and then add them up to get the perimeter of the polygon.
Using the distance formula, the distance between points A and B is:
[tex]$$AB = \sqrt{(x_B - x_A)^2 + (y_B - y_A)^2} = \sqrt{(-4 - 4)^2 + (8 - 2)^2} = \sqrt{100} = 10$$[/tex]
Similarly, the distances between the other pairs of points are:
[tex]$$BC = \sqrt{(x_C - x_B)^2 + (y_C - y_B)^2} = \sqrt{(-7 + 4)^2 + (4 - 8)^2} = 5$$[/tex]
[tex]$$CD = \sqrt{(x_D - x_C)^2 + (y_D - y_C)^2} = \sqrt{(-1 + 7)^2 + (-4 - 4)^2} = 10$$[/tex]
[tex]$$DA = \sqrt{(x_A - x_D)^2 + (y_A - y_D)^2} = \sqrt{(4 + 1)^2 + (2 + 4)^2} = \sqrt{61}$$[/tex]
Therefore, the perimeter of the polygon is:
[tex]$$AB + BC + CD + DA = 10 + 5 + 10 + \sqrt{61}$$[/tex]
= 25+√61
Thus, required perimeter is 25+√61.
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A space probe near Neptune communicates with Earth using bit strings. Suppose that in its transmissions it sends a 1 one-third of the time and a 0 two-thirds of the time. When a 0 is sent, the probability that it is received correctly is 0.8 and the probability that it is received incorrectly (as a 1) is 0.2. When a 1 is sent the probability that it is received correctly is 0.8 and the probability that it is received incorrectly (as a 0) is 0.2.
Find the probability that a 0 is received. (Enter the value of the probability in decimal format and round the final answer to one decimal place.)
P(0 received correctly) = P(0 sent) × P(0 received correctly | 0 sent)= [tex](2/3) × 0.8= 0.5333[/tex] (rounded to 1 decimal place)Thus, the probability that a 0 is received is 0.5333 (rounded to 1 decimal place).
0.5333
A space probe near Neptune communicates with Earth using bit strings. Suppose that in its transmissions it sends a 1 one-third of the time and a 0 two-thirds of the time. When a 0 is sent, the probability that it is received correctly is 0.8 and the probability that it is received incorrectly (as a 1) is 0.2. When a 1 is sent the probability that it is received correctly is 0.8 and the probability that it is received incorrectly (as a 0) is 0.2.The probability that a 0 is received correctly is given in the problem as 0.8, and the probability that a 0 is sent is 2/3. Therefore, the probability that a 0 is received correctly
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14. The perimeter of the table shown is 18 feet. Write an equation
in the form px + q = r to solve for x.
6
Answer:
its 3
Step-by-step explanation:
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The sail of a boat is in the shape of a right triangle. which expression shows the height, in meters, of the sail? the sail of a boat is a right triangle with an acute angle equal to 40 degrees and the side adjacent to the 40 degrees angle is 2 meters long. 2(sin 40°) sine 40 degrees over 2 2(tan 40°) tangent 40 degrees over 2
The expression shows the height, in meters, of the sail is 2(sin 40°) (option A)
One way to approach this problem is to use the sine function.
We know that sin(40 degrees) is equal to the length of the side opposite angle 40 degrees divided by the length of the hypotenuse. In other words, sin(40 degrees) = b/c.
We want to find the length of the segment that drops from the top of the sail to side a, which we will call h.
This segment is the side adjacent to angle 40 degrees, so we can use the cosine function to relate it to the length of side b. Specifically, cos(40 degrees) = h/b. Solving for h, we get
h = 2 x sin(40 degrees) = 2(sin 40°)
Hence the option (A) is correct.
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In which condition vector a.b has the minimum value? Write it.
Answer:
if it is perpendicular to eacha other I e 0
find the measure of the arc or angle indicated A) 29° B) 39° C) 49° D) 26°
Check the picture below.
what is the weighted mean, mean, and median overall rate of return on this investment portfolio?
The weighted mean takes into account the weight of each investment and can provide a more accurate measure of the overall rate of return on the portfolio than the mean or median.
The weighted mean, mean, and median overall rate of return on this investment portfolio can be calculated using the following formulas:
Weighted Mean: Weighted mean = (R1 x W1) + (R2 x W2) + (R3 x W3) + ...
Mean: Mean = (R1 + R2 + R3 + ...) / N
Median: Median = (N + 1) / 2
where R1, R2, etc. are the returns on individual investments, W1, W2, etc. are the weights assigned to each investment, and N is the total number of investments in the portfolio.
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The side lengths of a 30-60-90 triangle are in the ratio 1 : 3 : 2. What is sin 30?
We can calculate that sin 30 degrees is equal to the opposite side divided by the hypotenuse, which is x√3/(2x) = √3/2. Therefore, sin 30 degrees is equal to √3/2 in this case.
A 30-60-90 triangle is a type of right triangle where the angles measure 30, 60, and 90 degrees. Its side lengths are in a fixed ratio of 1 : √3 : 2, with the shortest side opposite the 30-degree angle having length x, the side opposite the 60-degree angle having length √3x, and the hypotenuse having length 2x. To find sin 30 degrees, we use the sine function, which is the ratio of the opposite side to the hypotenuse. Thus, sin 30 degrees is equal to x divided by 2x, or 1/2. Therefore, in this specific case where the side lengths are in the ratio 1 : 3 : 2, sin 30 degrees is equal to 1/2.
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E=1’2’3’4’5’6’7’8’9
A=1,3,4,8,9
B=2,4,9
Complete the Ben diagram for this info
A number is chosen at random for {
What is the probability as a fraction that the number is a member of A n B
Probability of the number being part of A∩B= 2/9
What is Venn diagram?The Venn diagram, a style of diagram that illustrates the logical connection between sets, was created by John Venn in the 1880s. The examples are used to illustrate fundamental set connections and introduce basic set theory in the fields of probability, logic, statistics, linguistics, and computer science.
A Venn diagram is a type of visual representation that uses circles to show the relationships between various items or constrained groups of objects. Circles that coincide and those that intersect have certain properties in common. Venn diagrams are helpful for visually illustrating the relationship and differences between two ideas.
What is probability?The probability of an occurrence is a figure used to indicate the likelihood that the event will occur. It is expressed as a figure between 0 and 1, or between 0% and 100%, when expressed as a percentage. The likelihood that the occurrence will occur increases with the probability.
In this question,
A∩B= 4,9
Probability of the number being part of A∩B= 2/9
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using the net below find the area of the triangular prism
6 cm
3 cm
4 cm
6 cm
5 cm
2 cm
Answer:153
Step-by-step explanation:
4. A parallelogram has an area of 10 square feet. (Lesson 5-5)
a. Complete the table that shows the relationship between the dilated area (x) and the scale factor (y).
b. Plot the points in the table on coordinate axes and connect them to create a smooth curve.
Answer:
0, 4, 16, 36, 64
Step-by-step explanation:
Divide the area by 10 , then the format for graphing would be (0,0) , (40, 4) , (160, 16) and so on.
All answers are listed below:
For A = 0 ft², the scale factor is 0.For A = 40 ft², the scale factor is 2.For A = 160 ft², the scale factor is 4.For A = 360 ft², the scale factor is 6.For A = 640 ft², the scale factor is 8.How to determine the dilated area of a parallelogramThe area of the parallelogram (A), in square feet, is equal to the product of the base (b) and the height (h), both in feet. By applying the rigid transformation of dilation on each side, we have the following formula:
[tex]A = k^2 \times b \times h[/tex] (1)
Where k is the scale factor.
And we can derive a scale factor by comparing two areas:
[tex]k=\sqrt{\frac{A}{A_o} }[/tex] (2)
Where is the original area, in square feet.
If we know that [tex]A_o=10 \ ft^2[/tex], then the scales factors are shown below:
For A = 0 ft², the scale factor is 0.
For A = 40 ft², the scale factor is 2.
For A = 160 ft², the scale factor is 4.
For A = 360 ft², the scale factor is 6.
For A = 640 ft², the scale factor is 8.
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Which of the following represents vector vector t equals vector PQ in trigonometric form, where P (–13, 11) and Q (–18, 2)?
t = 10.296 sin 60.945°i + 10.296 cos 60.945°j
t = 10.296 sin 240.945°i + 10.296 cos 240.945°j
t = 10.296 cos 60.945°i + 10.296 sin 60.945°j
t = 10.296 cos 240.945°i + 10.296 sin 240.945°j
The correct answer is option (C).
What are the fundamental forms of trigonometry?Sine (sin), cosine (cos), tangent (tan), cosecant (csc), secant (sec), and cotangent are the six functions (cot).
The equation t = Q - P, where Q and P are the specified locations, can be used to determine the components of the vector t. Therefore:
t = (–18, 2) – (–13, 11) = (–18 + 13, 2 – 11) = (–5, –9) (–5, –9)
The vector's magnitude is given by:
|t| = √(–5)^2 + (–9)^2 = √106 ≈ 10.296
The formula = tan1 (y/x), where x and y are the vector's components, can be used to determine the direction of the vector t. The direction must be expressed in terms of sine and cosine functions because we are required to represent the vector in trigonometric form.
θ = tan⁻¹ (–9/–5) ≈ 60.945°
In trigonometric form, the vector t is thus represented as follows:
t = [t|cos|i] + [t|sin|j]
We get the following by altering the values of |t| and:
t = 10.296 cos I + 10.296 sin j of angle 60.945
As a result, the following is the proper trigonometric representation of the vector t:
t = 10.296 cos I + 10.296 sin j of angle 60.945
Thus, alternative is the right response (C).
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A random sample of 100 preschool children in Camperdown revealed that only 60 had been vaccinated. Provide an approximate 95% confidence interval for the proportion vaccinated in that suburb.
a) We have 95% confidence that the interval, .5842 ≤ μ ≤ .7903 will contain the population proportion of children who have been vaccinated.
b) We have 95% confidence that the interval, .5504 ≤ μ ≤ .6560 will contain the population proportion of children who have been vaccinated.
c) We have 95% confidence that the interval, .5199 ≤ μ ≤ .6800 will contain the population proportion of children who have been vaccinated.
d) We have 95% confidence that the interval, .5040 ≤ μ ≤ .6960 will contain the population proportion of children who have been vaccinated.
To summarize, the 95% confidence interval for the proportion of vaccinated preschool children in Camperdown is [tex]0.5040 ≤ μ ≤ 0.6960[/tex], indicating that we can be 95% confident that the true proportion of vaccinated preschool children in Camperdown lies between 50.4% and 69.6%.
A 95% confidence interval for the proportion of preschool children in Camperdown who have been vaccinated is [tex].5040 ≤ μ ≤ .6960.[/tex] This indicates that we can be 95% confident that the true proportion of vaccinated preschool children in Camperdown lies between 50.4% and 69.6%.
To calculate this interval, we first need to calculate the sample proportion of vaccinated preschool children. To do this, we divide the number of vaccinated children (60) by the total number of children in the sample (100). This yields a sample proportion of 0.6.
Next, we need to calculate the standard error of the proportion, which is calculated by taking the square root of (sample proportion * (1 - sample proportion) / sample size). Plugging in our values yields a standard error of 0.0435.
We then use the standard error to calculate the 95% confidence interval, which is equal to (sample proportion +/- (1.96 * standard error)). Plugging in our values yields an interval of 0.5040 ≤ μ ≤ 0.6960. This indicates that we can be 95% confident that the true proportion of vaccinated preschool children in Camperdown lies between 50.4% and 69.6%.
To summarize, the 95% confidence interval for the proportion of vaccinated preschool children in Camperdown is 0.5040 ≤ μ ≤ 0.6960, indicating that we can be 95% confident that the true proportion of vaccinated preschool children in Camperdown lies between 50.4% and 69.6%.
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Twice a number decrease by four is less than 8
Twice a number decreased by four is less than 8 is x< 6.
2x - 4 < 8
2x < 8 + 4
2x < 12
x < 12 / 2
x < 6
Inequality refers to the unequal distribution of resources, opportunities, and outcomes among individuals or groups in a society. It can manifest in various forms, including economic inequality, social inequality, gender inequality, and racial inequality. Economic inequality refers to the unequal distribution of wealth and income, where some individuals or groups have access to more resources and opportunities than others.
Social inequality refers to the unequal distribution of social status and power, which can lead to marginalized groups being excluded from certain societal benefits. Gender and racial inequality refer to the unequal treatment and opportunities that certain genders or races face in society. Inequality can have negative consequences on individuals and society, including lower levels of social trust, reduced economic growth, and increased social tensions.
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Complete Question: -
Twice a number decreased by four is less than 8 is equation or inequality
PLEASE HELP !!!! QUICK
the wholesale price for a pair of shoes is $4.50 a certain department store marks up the wholesale price by 40%. find the price of the pair of shoes in the department store.
round your answer to the nearest cent, as necessary
Using percentages we know that the markup price of the pair of shoes will be $6.3.
What is the percentage?In mathematics, a percentage is a number or ratio that is expressed as a fraction of 100.
Although "pct," "pct," and occasionally "pc" are also used as abbreviations, the percent symbol "%" is most usually used to denote it.
A% is a number that has neither dimensions nor a defined unit of measurement.
When expressing a proportionate share of a total, percentages are frequently utilized.
(Similarly, the term "per mille" or the sign "%" can be used to denote a number as a fraction of 1,000.)
So, the market price of the store would be:
= 4.50/100 * 40
= 0.045 * 40
= 1.8
Markup price: 1.8 + 4.5 = $6.3
Therefore, using percentages we know that the markup price of the pair of shoes will be $6.3.
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how to integrate directly using substitution given the same initial condition does this match your taylor series
The integration of the given function using substitution and matching it with the Taylor series is equal to 4/3.
Step 1: Find the Taylor series of the given function f(x).
f(x) = e^(x^2)cos(x)
Therefore, we can say that the Taylor series of the given function is: f(x) = 1 + x^2 + (1/2)x^4 + (1/6)x^6 + (1/24)x^8 + ...
Step 2: Substitute the required value of x into the Taylor series. Let us substitute x = 1 into the Taylor series we got above.
f(1) = 1 + 1^2 + (1/2)1^4 + (1/6)1^6 + (1/24)1^8 + ...
f(1) = 1 + 1 + (1/2) + (1/6) + (1/24) + ...
Step 3: Simplify the expression to get the answer. We can simplify the above expression by using the formula for the sum of an infinite geometric series. The formula is given as follows:
Sum of infinite geometric series = a / (1 - r), where a is the first term and r is the common ratio. Here, a = 1 and r = 1/4. Sum of the series = a / (1 - r) = 1 / (1 - 1/4) = 4/3.
Therefore, we can say that the integration of the given function using substitution and matching it with the Taylor series is equal to 4/3.
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What is the distance from the point (15,-21) to the line for which f(4)=-8 and f(8)=-18
The distance from the point (15,-21) to the line is 5.39 units.
What is point slope form?The equation of a line in point-slope form is:
y - y1 = m(x - x1) (x - x1)
where (x1, y1) is a point on the line and m is the slope of the line. When we are unsure of the y-intercept but are aware of the line's slope and a point on the line, we can utilise this form of the equation.
To calculate the equation of a line using the point-slope method, we must first determine the slope of the line using the following formula:
m = (y2 - y1)/(x2 - x1) (x2 - x1)
where the two points on the line are (x1, y1) and (x2, y2). We may enter the slope, along with one of the line's points, into the point-slope form to obtain the equation of the line.
Given that, the line has the following values f(4)=-8 and f(8)=-18.
The coordinates of the line are (4, -8) and (8, -18)
Thus, the slope of the line is:
m = y2 - y1/ x2 - x1
m = -18 + 8 / 8 - 4
m = -10/4 = -5/2
Now the slope intercept form is given as:
y - y1 = m (x - x1)
Substitute the values:
y + 8 = -5/2(x - 4)
2y + 16 = -5x + 20
2y = -5x + 20 - 16
2y = -5x + 4
The distance from the line to point is given as:
Distance = |ax + by + c| / √(a² + b²)
Substituting the values:
Distance = |-5(15) + -2(-21) + 4| √(-5² + -2²)
Distance = |-29|/ 5.38
Distance = 5.39
Hence, the distance from the point (15,-21) to the line is 5.39 units.
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HELP ASAP PLEASE! What is the surface area of this composite solid? Show your work.
Answer:
I got 162?
Step-by-step explanation:
I broke down each individual shape (7 rectangles and 2 triangles) and used each shapes surface area formula.
triangle surface area formula is 1/2*b*h, and there are 2 of the same triangles of the exact same size and 7 rectangles. 3 are same size rectangles, 2 are same size rectangles and the other 2 are different sized rectangles. Then add altogether.
The _________ method is equivalent to a lottery system in which all the available names are placed in a container, the container is shaken, and the names of the "winners" or participants are then drawn out in an unbiased manner.- Non probability sampling- Systematic sampling- Simple random sampling - Stratified sampling
The Simple random sampling method is equivalent to a lottery system in which all the available names are placed in a container, the container is shaken, and the names of the "winners" or participants are then drawn out in an unbiased manner.
What is Simple random sampling?
The Simple random sampling is a sampling technique in which every member of the population has an equal chance of being chosen as a sample. The samples are chosen randomly, without any specific criterion. In this method, the selection of individuals for the sample is done without any specific pattern. This means that each member of the population is equally likely to be selected as a sample.In Simple random sampling, each member of the population is assigned a number, and the samples are selected using a random number generator or drawing names out of a hat. The selected samples are then analyzed to make predictions about the entire population.For example, if a researcher wanted to know the average age of students in a school, they might use Simple random sampling to choose a sample of 50 students. The researcher would assign each student a number and then use a random number generator to select the samples.There are some advantages and disadvantages of Simple random sampling, which are listed below:Advantages of Simple random sampling It is easy to understand and conduct the process.Each member of the population has an equal chance of being selected as a sample.It ensures that the sample is representative of the entire population.Disadvantages of Simple random sampling It can be time-consuming to select the samples.There may be a chance of human error when selecting samples.The sample size may not be large enough to draw meaningful conclusions.
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20. Assertion(A): The sides of a triangle are 5cm, 12cm and 13cm and its area is 30 cm². Reason(R): Area of a triangle is base x height. (a) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion, (b) Both Assertion and Reason are correct and Reason is not the correct explanation for Assertion. (c) Assertion is true but the Reason is false. (d) Assertion is false but the Reason is true.
what is..... 25% of 16?
Answer:
The answer is 4
Step-by-step explanation:
yeeeeeeeee
Answer:
4
Step-by-step explanation:
25% of 16
Change the percent to decimal form.
.25 * 16
4
Find the value of HCF of (Log ²2^18 + log²4)(log²32 + log ²216)
After calculating, the value of the expression HCF(log²(2^18) + log²(4))(log²(32) + log²(216)) is: 3 log²2 (5 - 3 log 3)
We can start by simplifying the logarithmic expressions inside the parentheses:
log²(2^18) + log²(4) = (18 log 2)^2 + (2 log 2)^2 = 324 log²2 + 4 log²2 = 328 log²2
log²(32) + log²(216) = (5 log 2)^2 + (3 log 6)^2 = 25 log²2 + 27 log²3
Now, we can express the original expression as:
HCF(log²(2^18) + log²(4))(log²(32) + log²(216)) = HCF(328 log²2, 25 log²2 + 27 log²3)
To find the highest common factor of these two terms, we can factor out the common factor of log²2:
HCF(328 log²2, 25 log²2 + 27 log²3) = log²2 HCF(328, 25 + 27 log²3)
Now, we need to find the highest common factor of the two integers 328 and 25 + 27 log²3.
We can factor out 3 from 25 and 27, and then use the difference of squares formula to write:
25 + 27 log²3 = (5 + 3 log 3)(5 - 3 log 3)
So, the highest common factor of 328 and 25 + 27 log²3 is the product of the common factors, which is:
HCF(328, 25 + 27 log²3) = 3(5 - 3 log 3)
Therefore, the value of the expression HCF(log²(2^18) + log²(4))(log²(32) + log²(216)) is:
log²2 HCF(328, 25 + 27 log²3) = log²2 * 3(5 - 3 log 3) = 3 log²2 (5 - 3 log 3)
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dayna writes the integers 1,2,3,4,5,6,7,8,9,10,11,12 on a chalkboard, then she erases the integers from 1 through 6, as well as their multiplicative inverse $\mod{13}$. what is the only integer dayna does not erase?
The integers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 have been written on a chalkboard by Dayna. She then erased the integers from 1 through 6, as well as their multiplicative inverse $\mod{13}$.
We can find the multiplicative inverse of an integer { a modulo 13 } by using the extended Euclidean algorithm.The integers from 1 to 6 are 1, 2, 3, 4, 5, and 6.The multiplicative inverse of : 1 modulo 13 is 1, 2 modulo 13 is 7, 3 modulo 13 is 9, 4 modulo 13 is 10, 5 modulo 13 is 8, and 6 modulo 13 is 11.The only integer that Dayna does not erase is 12.
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57
Exhibit 18-2
Students in statistics classes were asked whether they preferred a 10-minute break or to get out of class 10 minutes early. In a sample of 150 students, 40 preferred a 10-minute break, 80 preferred to get out 10 minutes early, and 30 had no preference. We want to determine if there is a difference in students' preferences.
Refer to Exhibit 18-2. The test statistic based on the number of students who preferred to get out early equals
Group of answer choices
1.825
0.67
0.82
3.65
The test statistic based on the number of students who preferred to get out early equals 3.65.
What is a test statistic?A test statistic is a numerical summary of the sample data that is employed to determine the strength of the evidence for a hypothesis. It is a quantitative measure that compares the observed data to the hypothesis. The t-value, Z-score, F-value, and chi-squared value are examples of common test statistics. In statistical hypothesis testing, a test statistic is used to make decisions about whether or not to reject the null hypothesis.
Based on the given problem, the number of students who preferred to get out of class early is 80, while the number of students who preferred a 10-minute break is 40. Hence, the number of students who had no preference is 30.
Now, we will find the test statistic based on the number of students who preferred to get out of class early as follows:
Test Statistic = (Observed Value - Expected Value) / Standard Deviation
To find the observed value, we need to calculate the proportion of students who preferred to get out of class early in the sample as follows:
Proportion of students who preferred to get out of class early = 80 / (150-30)= 80 / 120= 0.67
Therefore, the observed value is 0.67.
To find the expected value, we need to assume that there is no difference in students' preferences, and the proportion of students who preferred to get out of class early is the same as the proportion of students who preferred a 10-minute break.
Expected value = Proportion of students who preferred to get out of class early * Total number of students= 0.5 * 150= 75
Therefore, the expected value is 75.
To find the standard deviation, we need to use the formula for the standard deviation of a proportion as follows:
Standard Deviation = √[(p*q) / n]
where p is the proportion of students who preferred to get out of class early, q is the proportion of students who preferred a 10-minute break, and n is the total number of students.
Standard Deviation = √[(80/120)*(40/120) / 150]= √(0.1778 / 150)= 0.048
Therefore, the standard deviation is 0.048.
Now, we will substitute the values in the formula for the test statistic as follows:
Test Statistic = (0.67 - 0.5) / 0.048= 3.65
Therefore, the test statistic based on the number of students who preferred to get out early equals 3.65.
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I need help with number 12
The compounding formula is used to create the quarterly compounding formula. To the nearest cent, the compounded balance is $ [tex]12,832.27.[/tex]
What is the compounded quarterly formula?To reflect the quarterly interest computation as the only change, the interest rate is increased by 4*2.
[tex]A = P(1 + r/n)(nt)[/tex]
Assume that we have a $ [tex]10,000[/tex] Initial investment, a 6% yearly interest rate, and a 5-year investment period. We have n = 4 and t = 5 since the interest is compounded every three months.
Plugging in these values, we get:
[tex]A = 10,000(1 + 0.06/4)(4*5)[/tex]
[tex]= 10,000(1.015)^20[/tex]
[tex]= 12,835.72[/tex]
Hence, the final balance is $ [tex]12,835.72[/tex] to the nearest penny.
If the money is compounded continually, we may use the following formula to determine the balance:
[tex]A = Pe(rt)[/tex]
With the identical values as before, we obtain:
[tex]A = 10,000e(0.06 \times5)[/tex]
[tex]= 10,000e(0.3)[/tex]
[tex]= 12,832.27[/tex]
Therefore, So the balance, to the nearest cent, is $ [tex]12,832.27.[/tex]
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Write the model giving the number of s of subscribers in t years after 1970
Model: S(t) = 5000 + 3000t. With a starting value of 5000 subscribers in 1970 and a steady rise of 3000 subscribers each year, this model predicts a linear increase in the number of subscribers through time.
With a starting value of 5000 subscribers in 1970 and a steady rise of 3000 subscribers each year, this model predicts a linear increase in the number of subscribers through time. Simply enter the value of t into the equation to get the number of subscribers after t years. For example, if you want to know the number of subscribers in 1990, which is 20 years after 1970, you would enter in t=20 into the equation and obtain S(20) = 5000 + 3000(20) = 65000. As a result, our model predicts that there would be 65,000 members in 1990. It's crucial to note that this is a simplified model and may not adequately reflect the genuine behaviour of subscriber growth over time.
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according to the model, an extra pound of weight causes the self esteem score to go down by points. this slope is negative and shows that the variables of a child's weight and self-esteem have a negative correlation. true or false
Answer:
true
Step-by-step explanation:
You want to know if weight and self-esteem have a negative correlation if an increase in weight causes self-esteem to go down (the slope is negative).
Correlation coefficientThe slope of the line of best fit has the same sign as the correlation coefficient. The magnitude of the correlation coefficient is the ratio of the covariance to the product of the standard deviations of the variables.
It is true that the weight and self-esteem have negative correlation.
can you find another way to solve this problem without using the original one.
The area of the isosceles trapezoid is 37.25 unit².
What is isοsceles trapezοid?An isοsceles trapezοid is a trapezοid with cοngruent base angles and cοngruent nοn-parallel sides. A trapezοid is a quadrilateral with οnly οne side parallel.
An isοsceles trapezοid can be defined as a trapezοid whοse nοn-parallel sides and base angles have the same measure. That is, if the twο οppοsite sides (bases) οf a trapezοid are parallel and the twο nοn-parallel sides are οf equal length, it is an isοsceles trapezοid. See the diagram belοw.
Area of trapezium = 1/2(h)(a + b)
where h = height
a = smaller base = 10
b = larger base = 15
Now to find height, we see a triangle at the end of trapezium, draw the imaginary altitude
Now, the base = 5/2 ⇒(15 - 10= 5)/2
= 2.5
Using trigonometry ratio
tan(θ) = Height/ Base
tan(40°) = Height/ 2.5
0.8391 = Height/ 2.5
Height = 2.5/ 0.8391
Height ≈ 2.98
Now, The area = 1/2(2.98)(10 + 15)
= 1/2(2.98)(10 + 15)
= 37.25 unit²
Thus, The area of the isosceles trapezoid is 37.25 unit².
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Suppose the number of water people drink in a week is normally distributed with a mean of 50 and a standard deviation of 5 glasses of water. Find the value 1 standard deviation below the mean
Answer:
Step-by-step explanation:
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7: find the domain and range of these functions. (10 pts in total) (a) the function that assigns to each pair of nonnegative integers the first integer of the pair. (b) the function that assigns to each positive integer its largest decimal digit. (c) the function that assigns to a bit string the number of ones minus the number of zeroes in the string. (d) the function that assigns to each positive integer the largest integer not exceeding the square root of the integer. (e) the function that assigns to a bit string the longest string of ones in the string. 7
a) The domain of the function is {0,1,2,3,4,...}. The range is also a non-negative integer.
b) The largest decimal digit is 9, thus the domain of the function is all positive integers and the range is {9}.
c) The domain of the function is all bit strings of length n and the range is all integers between -n and n.
d) The domain of the function is all positive integers and the range is also all positive integers.
e) The domain of the function is all bit strings and the range is a non-negative integer.
Domain and range of the function that assigns to each pair of non-negative integers the first integer of the pair.In the given problem, (a) the function that assigns to each pair of non-negative integers the first integer of the pair. The first integer of the pair is always non-negative. Therefore, the domain of the function is {0,1,2,3,4,...}. The range is also a non-negative integer.
Domain and range of the function that assigns to each positive integer its largest decimal digit. In this problem, (b) the function that assigns to each positive integer its largest decimal digit. For all positive integers, the largest decimal digit is 9, thus the domain of the function is all positive integers and the range is {9}.
Domain and range of the function that assigns to a bit string the number of ones minus the number of zeroes in the string.In the problem, the function that assigns to a bit string the number of ones minus the number of zeroes in the string. The possible bit strings have a length of n. Therefore, the domain of the function is all bit strings of length n and the range is all integers between -n and n.
Domain and range of the function that assigns to each positive integer the largest integer not exceeding the square root of the integer.In the given problem, the function that assigns to each positive integer the largest integer not exceeding the square root of the integer. Let’s say f(n) is the largest integer not exceeding the square root of n, then the domain of the function is all positive integers and the range is also all positive integers.
Domain and range of the function that assigns to a bit string the longest string of ones in the string.In the given problem, the function that assigns to a bit string the longest string of ones in the string. In this case, the domain of the function is all bit strings and the range is a non-negative integer.
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Please help its gone overdue
80 points
Hence, AA"B"Ccoordinates "'s in green are: A" (0, 0), B" (-4, -5), and C" (1, -4).
what is graph ?An illustration of data or mathematical functions is a graph. It is a method for presenting numerical data in a way that is simple to comprehend and interpret. A set of axes, one for each variable being represented, and one or more plots or lines that reflect the data or function being graphed are the main components of a graph. There are many distinct graph kinds, each of which is appropriate for displaying various sorts of data, including line graphs, bar graphs, scatter plots, and pie charts.
given
The axes cannot be identified because they are not specified in the query.
The blue ABC bar graph is as follows:
Using the equation (x, y) (y, -x), rotate AABC 90 degrees clockwise by applying the following transformation to each point:
A(-3, 0) → A' (0, 3) (0, 3)
B(-2, 4) → B' (-4, -2) (-4, -2)
C(1, -1) → C' (1, -1) (1, -1)
The red A'B'C' coordinates are as follows: A' (0, 3), B' (-4, -2), and C' (1, -1).
We take the y-coordinate of each point and subtract 3 to translate AA'B'C' three units down:
A' (0, 3) → A" (0, 0) (0, 0)
B' (-4, -2) → B" (-4, -5) (-4, -5)
C' (1, -1) → C" (1, -4) (1, -4)
Hence, AA"B"Ccoordinates "'s in green are: A" (0, 0), B" (-4, -5), and C" (1, -4).
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The complete question is:-
1. Label the axes.
2. Graph: A(-3, 0) B(-2, 4) C(1,-1) Draw ABC in blue.
3. Rotate AABC 90° clockwise to
create ▲A'B'C' in red. List the coordinates below:
Formula: (x, y) → (y, -x)
A(-3, 0) A' ()
B(-2, 4)→ B' ()
C(1, -1) C' ()
4. Translate AA'B'C' three units down to create ▲A"B"C" in green. What are the coordinates of AA"B"C"?