the annual tuition and parent rating of 12 private schools is shown on the scatter plot. The schools are rated on a scale of 0 to 100.Part A: Give an example of a data point that affects the appropriateness of using a linear regression model to fit all the data. Explain. (I don't really understand what this question is asking)Part B: Give an example of a school that is cost effective and rated highly by parents.

Answer: First you need to calm down my man. a. 12. b 15 c. 9

2 1/2 hours

2 9/12 + 2 2/12 (3rd option)

Marsh trail is 2 5/10 or 2 1/2 miles longer than Woodland Trail

Step-by-step explanation: Question 3. a. Common Denominator is 12 b. Common Denominator is 15 c. Common denominator is 9. Question 4 It will take 2 and 1/2 hours to complete all of his tasks. Question 5. 2 9/12 + 2 2/12 Question 2. Marsh Trail is 2 5/10 and 2 1/2 miles longer than Woodland Trail. Hope this helps and stay calm.

The scale factor used to create the image is 1.5.

To determine the scale factor used to create the image, we can compare the corresponding side lengths of triangle ABC and triangle A'B'C'.

Let's calculate the length of side AB in both triangles:

For triangle ABC:

Coordinates of A: (-6, -4)

Coordinates of B: (-2, -4)

Length of AB = √[(-2 - (-6))^2 + (-4 - (-4))^2]

= √[4^2 + 0^2]

= √16

= 4

For triangle A'B'C':

Coordinates of A': (-9, -6)

Coordinates of B': (-3, -6)

Length of A'B' = √[(-3 - (-9))^2 + (-6 - (-6))^2]

= √[6^2 + 0^2]

= √36

= 6

The scale factor can be determined by dividing the length of the corresponding sides in the two triangles:

Scale factor = Length of A'B' / Length of AB

= 6 / 4

= 1.5

Therefore, the scale factor used to create the image is 1.5.

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Answer: D and F

Step-by-step explanation:

3 to the power of 4 means 3x3x3x3.

3x3 is 9

9x3 is 27

And 27x3 is 81

9 to the power of 2 means 9x9

9x9 equals 81

According to the Empirical Rule, 99.7% of the measures fall within 3 standard deviations of the mean in the normal distribution.

The Empirical Rule states that, for a normally distributed random variable, the symmetric distribution of scores is presented as follows:

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The roots of the quadratic function f(x) = -3x² - 11x - 5 will be negative 3.14 and negative 0.53.

Let the equation be ax² + bx + c = 0.

Then the roots of the equation will be

\(\rm x = \dfrac{-b \pm \sqrt{b^2 - 4 a c }}{2a}\)

The quadratic function is given below.

f(x) = -3x² - 11x - 5

Then the roots of the quadratic function will be given as,

x = [-(-11) ± √{(-11)² - 4 × (-3) × (-5)}] / [2 × (-3)]

Simplify the equation, then the roots of the equation are calculated as,

x = [-(-11) ± √{(-11)² - 4 × (-3) × (-5)}] / [2 × (-3)]

x = [ 11 ± √{121 - 60}] / [-6]

x = - (11 ± 7.81) / 6

x = - (11 + 7.81) / 6, - (11 - 7.81) / 6

x = - 3.14, -0.53

The solution of the quadratic function will be negative 3.14 and negative 0.53.

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Answer:

2^2 - 1^2

Step-by-step explanation:

1^1 = 1

2^2 = 4

4-1 =3

2^2 - 1^1 = 3

Answer:

g=9.4

Step-by-step explanation:

subtract 1.5 from both sides

-2g=-18.8

divide both sides by -2

g=9.4

Have a good day!

Answer: $252

Step-by-step explanation:

21$ an hour x 12 hours = $252 total :)

Answer:

She earned $252 thsi month.

Step-by-step explanation:

1  hour = $21

12 hours = $?

21*12 = 252

Answer: x<4

Step-by-step explanation:

If we break this down as

-2+4x<14 and we add 2 to both sides

4x+<16 and divide by 4

and you get x<4

The distance between the given points (2, -2) and (-4, -7) is √61 units

The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is given by:

\(Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

The distance between the given points (2, -2) and (-4, -7) is:

\(Distance=\sqrt{(-7-(-2))^2+(-4-2)^2}=\sqrt{25+36}=\sqrt{61}\)

The distance between the given points (2, -2) and (-4, -7) is √61 units

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Answer:

\(416 \;in^2\)

Step-by-step explanation:

The surface area of the rectangular prism

\(S = 2(lw + lh + wh)\)

where

l = length = 12 in

w = width = 10 in

h = height = 4 in

Therefore

\(S = 2(12\cdot 10 \;+ \; 12\cdot 4 \;+\;10 \cdot 4)\\\\= 2(120 + 48 + 40)\\\\= 2 (208)\\\\= 416 \: in^2\)

a) Probability that the next accident occurs between 50 and 100 days = 0.2044198

b) Probability that the time until an accident occur exceeds the mean time by more than 2 standard deviations =  0.04978707

c) The probability that it will be at least 80 days until an accident occurs = 0.2865048

d) the value of the median time until an accident occurs = 27.7258

Median time

a) Let T be the amount of time until an industrial facility accident occurs.

Daily rate lambda = 1/Mean = 1/40

Exp(lambda = 1/40), T

If the distribution is exponential,

P(T t) = 1 - exp (-lambdat) = 1 - exp(-t/40)

P(50 T 100) is the probability that the next accident will occur between 50 and 100 days.

= P(T < 100) - P(T < 50)

= (1 - exp(-​​​​​​​100/40)) - (1 - exp(-​​​​​​​50/40))

= exp(-1.25) (-1.25) - exp(-2.5) (-2.5)

= 0.2865048 - 0.082085

= 0.2044198

b) Standard deviation = Mean = 40 in the case of an exponential distribution.

The probability of the next accident occurring exceeds the mean time by two standard deviations.

= P(T > 40 + 2 * 40)

= P(T > 120)

= exp(-​​​​​​​120/40)

= exp (-3)

= 0.04978707

c) Given that there is no accident until 30 days, the likelihood is that it will be at least 80 days before an accident occurs.

= P(T > 80 | T > 30)

= P(T>80 and T>30) / P(T>30)

= P(T > 80) / P(T > 30)

= p(- 80/40) / exp(- 30/40)

= exp(-50/40) = (-1.25)

= 0.2865048

d) If the distribution is exponential,

P(T t) = 1 - exp(-lambdat) = 1 - exp(- t/40).

P(T t) = 0.5 for the median value Tm.

1 - exp(-​​​​​​​Tm/40) = 0.5

exp(-​​​​​​​Tm/40) = 0.5

-​​​​​​​Tm/40 = log (0.5)

-​​​​​​​Tm/40 = -0.6931472

Tm = 40 * 0.6931472

= 27.72589 days

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Because he wants to mantain a constant rate over the first hours, we can see that on the first hour he should travel 26 miles.

The total race is 150 miles, if we discount the last 20 miles (that Jackson will bike as fast as he can) we get:

150mi - 20mi = 130mi

We know that he travels these 130 miles at a constant rate over 5 hours, so the distance that he moves each hour (an particularly the first hour) is given by the quotient between the distance and the time.

R = 130mi/5h = 26mi/h

So he should travel 26 miles in the first hour.

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The equations of the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x

From the question, we have the following equations that can be used in our computation:

h(x) = x² + 3

f(x) = 3/4x

From the above, we have

(h o h)(x) = h(h(x))

So, we have

(h o h)(x) = (x² + 3)² + 3

Also, we have

(f o f)(x) = 3/[4(3/4x)]

Evaluate

(f o f)(x) = x

Hence, the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x

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The monthly payments over a period of 5 years is $214.05.

A fixed-rate mortgage is a home loan option with a specific interest rate for the entire term of the loan. Essentially, the interest rate on the mortgage will not change over the lifetime of the loan and the borrower's interest and principal payments will remain the same each month.

Given that, a family borrows $12,843 for an addition to their home.

The loan is to be paid off in monthly payments over a period of 5 years

We know that, 5 years = 60 months

Now, monthly payment = Total money/Number of months

= 12,843/60

= $214.05

Therefore, the monthly payments over a period of 5 years is $214.05.

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The z-statistic test was conducted to determine the Deviation of RPM, ASM, and LF from the mean. The test indicates that RPM, ASM, and LF significantly deviate from the mean.

Report on the Analysis of American Airlines (Domestic) PerformanceThe quantitative analysis focused on three variables- load factors, revenue passenger miles, and available seat miles for American Airlines.

The Bureau of Transportation Statistics data for domestic flights from January 2006 to December 2012 was retrieved for the analysis. The quantitative analysis also focused on finding critical statistical values like mean, median, mode, standard deviation, variance, and minimum/maximum variables. The results of the data are summarized in Table 2. Revenue Passenger Miles (RPM) mean is 6,624,897, the median is 6,522,230, and mode is NONE. The minimum is 5,208,159 and the maximum is 8,277,155. The standard deviation is 720,158.571, and the variance is 518,628,367,282.42.

Load Factors (LF) mean is 82.934, the median is 83.355, and mode is 84.56. The minimum is 74.91, and the maximum is 89.94. The standard deviation is 3.972, and the variance is 15.762. The Available Seat Miles (ASM) mean is 7,984,735, the median is 7,753,372, and mode is NONE. The minimum is 6,734,620, and the maximum is 9,424,489. The standard deviation is 744,469.8849, and the variance is 554,235,409,510.06.Figure 1 above displays the performance of American Airlines (Domestic).

The mean RPM is 7,984,735, and the linear regression line is y = 50584x - 2.53E+8. The linear regression line indicates a positive relationship between RPM and year, with a coefficient of determination, R² = 0.6806. A coefficient of determination indicates the proportion of the variance in the dependent variable that is predictable from the independent variable. Therefore, 68.06% of the variance in RPM is predictable from the year. A one-way ANOVA analysis of variance test was conducted to determine the equality of means of three groups of variables; RPM, ASM, and LF. The null hypothesis is that the means of RPM, ASM, and LF are equal.

The alternative hypothesis is that the means of RPM, ASM, and LF are not equal. The level of significance is 0.05. The ANOVA results indicate that there is a significant difference in means of RPM, ASM, and LF (F = 17335.276, p < 0.05). Furthermore, a post-hoc Tukey's test was conducted to determine which variable means differ significantly. The test indicates that RPM, ASM, and LF means differ significantly.

The skewness test was conducted to determine the symmetry of the distribution of RPM, ASM, and LF. The test indicates that the distribution of RPM, ASM, and LF is not symmetrical (Skewness > 0).

Additionally, the z-statistic test was conducted to determine the deviation of RPM, ASM, and LF from the mean. The test indicates that RPM, ASM, and LF significantly deviate from the mean.

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Answer:

= 34

Step-by-step explanation:

(32)-5+7

32 - 5 + 7

= 32 + 2

= 34.

Answer:

2(25xn+10x+2)

Step-by-step explanation:

Pasos de la solución

25xn2+20x+4

Simplifica 2.

2(25xn+10x+2)

Answer:

See below

Step-by-step explanation:

If you factor \(a^2-a-30\) you get \(\left(a^2+5a\right)+\left(-6a-30\right)\)

= \(a(a+5)-6(a+5)\)

= \(a(a+5)(a-6)\)

That's where the a comes in

Not sure if that answers your question

to get the slope of any straight line, we simply need two points off of it, let's use those in the picture below.

\((\stackrel{x_1}{-4}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{8}-\stackrel{y1}{0}}}{\underset{\textit{\large run}} {\underset{x_2}{2}-\underset{x_1}{(-4)}}} \implies \cfrac{8 }{2 +4} \implies \cfrac{ 8 }{ 6 } \implies \cfrac{4 }{ 3 }\)

(a) x² + y² + z² + 18(x - y + z) + 218 = 0

(b) (x + 9)² + (y - 9)² + 56 = 0

The general equation of a sphere of radius r and centered at C = (x₀, y₀, z₀) is given by;

(x - x₀)² + (y - y₀)² + (z - z₀)² = r²               ------------------(i)

From the question:

The sphere is centered at C = (x₀, y₀, z₀) = (-9, 9, -9) and has a radius r = 5.

Therefore, to get the equation of the sphere, substitute these values into equation (i) as follows;

(x - (-9))² + (y - 9)² + (z - (-9))² = 5²

(x + 9)² + (y - 9)² + (z + 9)² = 25      ------------------(ii)

Open the brackets and have the following:

(x + 9)² + (y - 9)² + (z + 9)² = 25

(x² + 18x + 81) + (y² - 18y + 81) + (z² + 18z + 81) = 25

x² + 18x + 81 + y² - 18y + 81 + z² + 18z + 81 = 25

x² + y² + z² + 18(x - y + z) + 243 = 25

x² + y² + z² + 18(x - y + z) + 218 = 0    [equation has already been normalized since the coefficient of x² is 1]

Therefore, the equation of the sphere centered at (-9,9, -9) with radius 5 is:

x² + y² + z² + 18(x - y + z) + 218 = 0

(2)  To get the equation when the sphere intersects a plane z = 0, we substitute z = 0 in equation (ii) as follows;

(x + 9)² + (y - 9)² + (0 + 9)² = 25

(x + 9)² + (y - 9)² + (9)² = 25

(x + 9)² + (y - 9)² + 81 = 25        [subtract 25 from both sides]

(x + 9)² + (y - 9)² + 81 - 25 = 25 - 25

(x + 9)² + (y - 9)² + 56 = 0

The equation is therefore, (x + 9)² + (y - 9)² + 56 = 0

Answer:

3

Step-by-step explanation:

1+1= 2 + -2=0 + 3 = 3

Answer:

\(3\)

Step-by-step explanation:

\((1 + 1 -2 +3)\)

\(1+1-2+3\)

\(2+1\)

\(=3\)

Answer:

D=1

Step-by-step explanation:

1. Combine multiplied terms into a single fraction
2. Cancel terms that are in both numerator and denominator
3. Divide by 1

Answer:

I honestly don't know but I think its all real numbers but not zero

Step-by-step explanation:

The system of equations is.

\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)

And the solutions are y = 50 and x = 10.

Let's define the two variables:

With the given information we can write two equations, then the system will be:

\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)

Now let's solve it.

We can isolate x on the first  to get:

\(\text{x} = 60 - \text{y}\)

Replace that in the other equation to get:

\(15\times(60 - \text{y}) + 10\text{y} = 800\)

\(-2\bold{y} = 900 - 800\)

\(-2\bold{y} = 100\)

\(\text{y} = \dfrac{100}{-2} = \bold{50}\)

Then \(\bold{x=10}\).

Therefore, the solutions are y = 50 and x = 10.

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Answer:

The answer is 1980

Step-by-step explanation:

can you pls choose me as brainliest

Answer:

B is the correct answer ........................

Step-by-step explanation:

The opposite side of 83 is also equal.

opposite side of 25 is also equal.

angle of complete turn is 360° so

83+83+25+25+q+q=360°

166+50+2q=360°

216+2q=360°

2q=360-216

2q=144

q=144/2

q=72