PLS I REALLY NEED HELP IM USING ALL MY POINTS ON THIS AND RED TILES ARE NEGATIVE BTW!

In statistics, p hat is used as an estimator of the population proportion (p) of a categorical variable. It is the sample proportion of the variable, which is calculated as the number of occurrences of a particular category in the sample divided by the total sample size.

The reason why p hat is used is that it provides an estimate of the unknown population proportion based on a representative sample. By using p hat, we can draw inferences about the population proportion with a certain level of confidence. This is important in hypothesis testing and confidence interval estimation, where we want to make statements about the population based on the information gathered from a sample.

Using p hat as an estimator of p is also beneficial because it has desirable statistical properties, such as being an unbiased estimator, having a sampling distribution that approaches normality, and having a known standard error.

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Answer:

A.

Step-by-step explanation:

Given that point P partitions a directed line segment from A to B into the ratio 3:4, we are to determine how close P is to either A or B.

To do this, we take an example.

Let the length of line segment AB be 14 Units.

Since P divides AB in the ratio 3:4

Therefore, from the above, we can conclude that P will be closer to A as its distance from A is shorter than its distance from B.

The correct option is A.

Answer:

Point P partitions the directed line segment from A to B into the ratio 3:4. Will P be closer to A or B? Why?

A number line goes from point A to point B. A line is drawn from point A to point B.

Right Answer  A.)   P will be closer to A because it will be Three-sevenths the distance from A to B.  

Wrong Answer  B.)   P will be closer to A because it will be Four-sevenths the distance from A to B.

Wrong Answer C.)    P will be closer to B because it will be Three-sevenths the distance from B to A.

Wrong Answer D.)   P will be closer to B because it will be Four-sevenths the distance from B to A.

Step-by-step explanation:

There are 87 fewer fish in small school compared to big school.

We solve addition and subtraction problems by focusing on either the action (joining or separating) or the relationship in the problem. Many problems involve monetary relationships.

This week, we looked at COMPARISON problems, which involve determining the similarities and differences between sets.

Difference Unknown: One type of compare problem entails determining how many more items are in one set than another. James, for example, has six mice. Joy has eleven mice. Joy has how many more mice than James?

Given,

Number of fish in small school = 25

Number of fish in big school =  112

then,

Number of fewer fish does small school have 112 -25 = 87

Thus, there are 87 fewer fish in school than big school.

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Big O notation focuses on the worst-case scenario analysis, which is 0(n) for a simple search. It’s a reassurance that a simple search will never be slower than O(n) time.

Imagine that you're a teacher with a student named Ram. You want to find his records, so you use a simple search algorithm to go through your school district's database.

You know that a simple search takes O(n) times to run. This means in the worst case, you'll have to search through every single record to find Ram

After a simple search, you find that Ram records are the very first entry in the database. You don't have to look at every entry.

Did this algorithm take O(n) time Or did it take O(1) time because you found Ram records on the first try?

In this case, 0(1) is the best-case scenario – you were lucky that Ram records were at the top. But Big O notation focuses on the worst-case scenario, which is 0(n) for a simple search. It’s a reassurance that a simple search will never be slower than O(n) time.

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The balance of the unsubsidized loan at the time of graduation is $3,691.10.

Given:

Principal amount = $2,560

Interest rate = 6.8% = 0.068

Time period = 6 months

We can use the formula for compound interest to calculate the future value:

\(Future\; Value = P (1 + \dfrac{Interest Rate}{Number of Periods}) ^{(Periods * Time )\)

Substituting the value back into the formula as

Future Value = \($2,560 (1 + \dfrac{0.068}{12} )^{(12 * 6)\)

                      = \($2,560 (1 + 0.00566667)^{(72)\)

                      = \($2,560 (1.00566667)^{(72)\)

                      = $2,560 * 1.44044291

                       = $3,691.10

Therefore, the balance is $3,691.10.

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Answer: false

Step-by-step explanation:

False

Answer:

20/3

Step-by-step explanation:

To figure this out, you would multiply 5 by the reciprocal of the fraction. The reciprocal is the fraction flipped around. 3/4 flipped around would be 4/3.

5*4/3=20/3

Hope this helps!! Have a nice day c:

Answer:

sample proportion of defective items

Step-by-step explanation:

The p-chart is a type of chart in which the sample is taken periodically from the production process, so as to determine if the population proportion of defective items in the sample falls within the control limits on the chart.

For a P-chart, as the sample size gets larger it turns more into a normal distribution making it possible to approximate the distribution of the proportion defective.

Based on the information provided, the two numbers whose HCF is 101 are 1010 and 1313.

The HCF is the highest common factor or in other words, the highest number by which two numbers can be divided. Let's start by listing the four digits numbers that can be the HCF related to 101.

101 x 10 = 1010

101 x 11 = 1111

101 x 12 = 1212

101 x 13 = 1313

Now, from these numbers, there are two numbers whose difference is 303.

1313 - 1010 = 303

Based on this, the two numbers are 1010 and 1313

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Answer:

blank = inheritance

Step-by-step explanation:

Hope that helps

Answer:

b is greater than a by 1/4 of a

Step-by-step explanation:

The statement “The number a is less than the number b by 1/5 of b”

means “if we subtract one fifth of b from b itself we get a”

we write this mathematically like this :

\(a=b-\frac{b}{5}\)

_________

\(\rightarrow a = \frac{5b-b}{5} =\frac{4b}{5}\)

\(a=\frac{4b}{5} \Longrightarrow 5a=4b\)

\(5a=4b\Longrightarrow b=\frac{5a}{4}\)

\(\Longrightarrow b=\frac{5a}{4} =\frac{4a+a}{4}=\frac{4a}{4}+\frac{a}{4}=a+\frac{a}{4}\)

Answer:

0.25

Step-by-step explanation:

Step-by-step explanation:

\( f(x) = - 3 {x}^{2} + 9x - 2\)

A) f(-2) + f(1) = -32 + 4 = -28

B) f(-2) - f(1) = -32 - 4 = -36

The baseball card be worth in 30 years is: $159212.14

We have the following information available from the question is:

A rare baseball card just sold for $12,000

This baseball card to increase in value by 9%

each decade.

The principal = $12,000

Rate of interest (r) =9%

Time period (t) = 30 years

The number of times per year the interest is compounded (n) = 1

We know the formula is:

\(=P(1+\frac{r}{n} )^n^t\)

Plug all the values, we get:

\(=12000(1+\frac{\frac{9}{100} }{1} )^3^0\)

Then, Evaluate the equation/expression:

=> $159212.14

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Answer:

1/2 - Half of the numbers are odd

The cosine function is periodic, repeating itself every 2π radians or 360 degrees. The cosine of angle θ, where point P is located at (-3,0), is -3.

To find the cosine of angle θ, we need to determine the x-coordinate of the point P on the unit circle corresponding to the angle θ.

In this case, point P is located at (-3,0). The x-coordinate of point P is -3.

The cosine of an angle is defined as the ratio of the adjacent side to the hypotenuse in a right triangle. However, in this case, we are dealing with an angle on the unit circle, where the hypotenuse is always 1.

Since the x-coordinate of point P is -3, and the hypotenuse is 1, we can see that the adjacent side is -3 units long.

Therefore, cos(θ) = adjacent/hypotenuse = -3/1 = -3.

So, the cosine of angle θ is -3.

The cosine function is a trigonometric function that relates the angle of a right triangle to the ratio of the lengths of its sides. In this case, since we are dealing with the unit circle, the cosine of an angle is simply the x-coordinate of the point on the circle corresponding to that angle.

By knowing the x-coordinate of point P, we can determine the cosine of angle θ. In this case, the x-coordinate is -3, so the cosine of angle θ is -3.

It's important to note that the cosine function is periodic, repeating itself every 2π radians or 360 degrees. So, while the cosine of angle θ is -3 for this particular point P, it will have the same value at other angles that are coterminal with θ, meaning angles that have the same terminal side.

In summary, the cosine of angle θ, where point P is located at (-3,0), is -3.

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Answer:

  see attached

Step-by-step explanation:

-5.7 is 5.7 units to the left of 0 on the number line. It is 7/10 of the way from -5 to -6.

__

It is a reflection of the point +5.7 across the 0 point on the number line.

Answer:

3

Step-by-step explanation:

Answer:

answer would be 3!

Step-by-step explanation:

view the problem, it could be adding or subtracting. your welcome! c:

120 ways can the letters in the word spoon be arranged. So, The correct option is d) 120.

The word "spoon" has five letters, and we need to find the number of ways to arrange these letters. This can be done using the permutation formula, which is n!/(n-r)!, where n is the total number of items and r is the number of items being selected. In this case, we have five items and we need to arrange all of them, so r = 5. Therefore, the number of arrangements is 5!/(5-5)! = 5!/0! = 5x4x3x2x1 = 120.

To understand this concept better, consider that the first letter of "spoon" can be any of the five letters. Once we choose a letter for the first position, there are four letters left to choose from for the second position, three for the third position, two for the fourth position, and only one letter left for the fifth position. Multiplying these numbers gives us the total number of arrangements. Therefore, there are 120 ways to arrange the letters in the word "spoon". So the correct answer is d) 120.

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Using compound interest, it is found that it will take 62.91 years for the account to earn $7500.

Compound interest,

A(t) = P × \((1 + \frac{r}{n} )^{nt}\)

The amount of cash after t years is A(t).

The principal is P. (the initial sum of money).

The interest rate is r. (as a decimal value).

The number of times interest is compounded quarterly is n.

t is the number of years that the money will be invested or lent out for.

P = $2500

r = 1.75% = 0.0175

n = 4

A(t) = $7500

then enter the values as follows:

A(t) = P × \((1 + \frac{r}{n} )^{nt}\)

$7500 = $2500 × \((1 + \frac{0.0175}{4} )^{4t}\)

$7500 ÷ $2500 = \((1 + \frac{0.0175}{4} )^{4t}\)

$3 = \((1.004375)^{4t}\)

Log3 = 4t log(1.004375) after applying the log on both sides.

t = log3 ÷ (4log(1.004375))

t = 62.91

Kevin will earn $7500 for 62.91 years.

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Answer:

(4,-1)

Step-by-step explanation:

You can solve this system of equations in a couple of different ways, but I'm going to use the elimination method. If you're solving a system of equations using elimination, you want to have one variable cancel out. In this case, we don't have to change anything because -3y and 3y will already cancel out if we add the two equations together. You can both add or subtract, but it's easiest to add in this case. The equation will be set up like this: 2x-3y=11

                                                                                                      +  7x+3y=25

                                                                                                         --------------

After you add them together, you should get 9x=36, which you can solve by dividing both sides by 9. Then, you'll get x=4. This is your x-coordinate. Next, you want to get your y-coordinate, so you can substitute 4 into one of the two equations for x and solve for y. This will get you -1 for y. I'd also recommend checking your answer. Hope this was helpful! :)

Legend

The term that refers to the labels at the right of the graph indicating how each subcategory is represented is the Legend.

The Legend is a key that indicates what the different colors, lines, or other symbols in a graph represent. It is usually located at the right or bottom of the graph and provides a clear explanation of the different subcategories.

The Legend is an essential component of a graph, as it helps the viewer understand the information presented in the graph. Without the Legend, the graph can be confusing and difficult to interpret. It is important to ensure that the Legend is clear and easy to understand so that the viewer can quickly identify the different subcategories represented in the graph.

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Answer:

600(1+1)^3 with future amount being 4800

Step-by-step explanation:

The amount of the money after 27 years will be $4800.

The quantity of money anyone has is termed as the amount. The solution to the question is given as follows:-

Given that investments double every 9 years and you start with a $600 investment. how much money would you have after 27 years?

We know that the amount is getting double in every 9 years so the number of times the amount will get doubled will be = 27 / 9 = 3

Future amount = 600(1+1)³

Future amount  = 600 ( 2 )³

Future amount = 600 ( 8 ) = $4800

Therefore the amount of the money after 27 years will be $4800.

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Step-by-step explanation:

12x+15+69= 180

12x = 96 X =8

x+137 + 50 = 180

x = - 7

80= 20x

x = 4

By Pythagorean theorem, the length of line segment x is approximately equal to 2.609 feet.

In this problem we find a geometric system where line segment x is perpendicular to the hypotenuse of a right triangle. This system can be represented well by Pythagorean theorem:

4.6² = (5.8 - y)² + x²

3.5² = x² + y²

First, eliminate variable x and solve for y:

4.6² = (5.8 - y)² + (3.5² - y²)

4.6² = 5.8² - 10.6 · y + y² + 3.5² - y²

4.6² = 5.8² - 10.6 · y + 3.5²

10.6 · y = 5.8² + 3.5² - 4.6²

y = 2.333

Second, determine variable x:

x = √(3.5² - 2.333²)

x = 2.609

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The exponential functions for the two scenarios given are -

a) \(y = 12500 (0.91)^x\), Price of car after 5 years is $7800.40.

b) \(y = 50 (1.03)^x\), Price of baseball card after 5 years is $57.96.

What is an exponential function?

The formula for an exponential function is f(x) = a^x, where x is a variable and a is a constant that serves as the function's base and must be bigger than 0.

The exponential function is in the form -

\(y=ab^x\)

Here y is the function, a is the constant base value, b is the rate of growth/depreciation and x is the time in years.

The first statement is -

A $12,500 car depreciates 9% each year.

The value for base is a = $12,500.

The value for rate is 9% = 0.09

Since, the price is depreciating the value for b is b = (1 - 0.09)

The exponential function is -

\(y = 12500 (1 - 0.09)^x\)

\(y = 12500 (0.91)^x\)

The value of car after 5 years can be obtained by substituting x = 5.

\(y = 12500 (0.91)^5\\y = 12500(0.6240)\\y=7800.40\)

Therefore, the equation is \(y = 12500 (0.91)^x\) and the value of car is $7800.40.

The second statement is -

A baseball card brought for $50 increases 3% in value each year.

The value for base is a = $50.

The value for rate is 3% = 0.03

Since, the price is increasing the value for b is b = (1 + 0.03)

The exponential function is -

\(y = 50 (1+0.03)^x\)

\(y = 50 (1.03)^x\)

The value of baseball card after 5 years can be obtained by substituting x = 5.

\(y = 50 (1.03)^5\\y = 50 (1.1592)\\y =57.96\)

Therefore, the equation is \(y = 50 (1.03)^x\)and the value of baseball card is $57.96.

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The number 41.2751 entered exactly (no rounding) is 41.2751. The number 41.2751 rounded to the nearest hundredth (two decimal places) is 41.28. The result of 41.2751 multiplied by 0 is 0.

In the first case, when the number 41.2751 is entered exactly without rounding, the value remains as 41.2751. This means that no rounding or approximation has been made, and the number is presented in its precise form.

In the second case, when the number 41.2751 is rounded to the nearest hundredth (two decimal places), it becomes 41.28. Rounding to the nearest hundredth means considering the digit in the thousandth place (5) and rounding up if it is 5 or greater. Since the digit is 5, the preceding digit (7) is rounded up to 8, resulting in 41.28.

Finally, when the number 41.2751 is multiplied by 0, the result is 0. Any number multiplied by 0 equals 0, as any quantity multiplied by zero will always result in zero. Therefore, the product of 41.2751 and 0 is 0.

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The scale factor from the map to the actual trail is 1 cm represents 2 km.

To determine the scale factor, we compare the measurements on the map to the corresponding measurements on the actual trail. In this case, we know that the length of the trail on the map is 12 cm, and this represents the actual length of the trail.

The given information states that 1 cm on the map represents 2 km on the actual trail. Therefore, for every 1 cm on the map, we have 2 km on the actual trail. This ratio of 1 cm to 2 km gives us the scale factor.

So, the scale factor from the map to the actual trail is 1 cm represents 2 km. This means that every centimeter on the map corresponds to a distance of 2 kilometers on the actual trail.

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Answer:

The answer would be 2.

Step-by-step explanation:

U just subtract 39.21 -36.4= 2.81

Answer:

32

Step-by-step explanation:

\(r=-2,\:a_n=-4\left(-2\right)^{n-1}\)