The May 1, 2009, issue of a certain publication reported the following home sale amounts for a sample of homes in Alameda, CA that were sold the previous month (1,000s of $).
592 817 577 608 353 1,281 412 535 550 679
(a) Calculate and interpret the sample mean and median.
The sample mean is x = thousand dollars and the sample median is x tilde= thousand dollars.
This means that the average sale price for a home in this sample was $ and that half the sales were for less than the _____mean median price, while half were more than the _____ mean median price.
(b )Suppose the 6th observation had been 985 rather than 1,281. How would the mean and median change?
(c) Calculate a 20% trimmed mean by first trimming the two smallest and two largest observations. (Round your answer to the nearest hundred dollars.)
(d) Calculate a 15% trimmed mean. (Round your answer to the nearest hundred dollars.)

The journal entry for the business receiving $ 6, 000 for a 10 month service contract is :

Date                     Account and Explanation               Debit           Credit

December 1          Cash                                           $ 6, 000

                            Unearned Service Revenue                             $ 6, 000

                            Being revenue received for services

                             not yet rendered

When a business receives money for a service that it is yet to perform for the client, this is called unearned service revenue. The amount is to be debited to the cash account as it is an asset and assets are debited when they increase.

Unearned service revenue will then be credited by the same amount because it represents a liability that the company owes to the client.

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Answer: the right option is (A) II only

Step-by-step explanation:

3.43 liters of Can A, and 4.57 liters of Can B  should be used from each can to obtain 5 liters of paint which is half blue and half yellow.

A word problem is a few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.

From the question,

Can A is 9 parts of blue  1 part yellow= 90% blue, 10% yellow

Can B is 20% blue, 80% yellow.

let

A + B = 8 Liters

90% A + 20% B = 50% (Blue)

10% A + 80% B = 50% (Yellow)

resolving

90% A + 20% B = 10% A + 80% B

80% A = 60% B

Go back to A + B = 8 and solve for one of the variables.

B = 8 - A

80% A = 60% (8 - A)

80% A = 480% - 60% A

140% A = 480%

A = 3 43 liters

B = 8 - A = 4.57 liters

Hence, 3.43 liters of Can A, and 4.57 liters of Can B should be used.

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Answer:

92

Step-by-step explanation:

2x49=98-6=92

Answer:

f(7) = 92

Step-by-step explanation:

To find f(7), substitute x = 7 into the given function.

[tex]\begin{aligned}f(7)&=2(7)^2-6\\&=2(49)-6\\&=98-6\\&=92\end{aligned}[/tex]

In a case whereby Koji is installing a rectangular window in an office building. The window is 8 2/3 feet wide and 5 3/4 feet high using the  formula for the area of a rectangle is A=bh, the area of the window is 49 5/6.

The concept that will be used here is area of a rectangle. Since window can be seen to be like a  rectangle then area of window  can be take as area of rectangle which can be calculated as

Area = Length × breadth

The Length=82/3 = 26/3

the breadth= 5 3/4 = 23/4

Then Area =( 26/3 * 23/4) = 299/6 = 49 5/6

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Answer: 49 5/6 square feet

Step-by-step explanation: The width/breadth = 8 2/3 = 26/3

the height = 5 3/4 = 23/4

Area = (26/3 * 23/4) = 598/12 = 49 5/6

The derivative of y relative to x is given as follows:

dy/dx = 8xsin(x)cos(x) + 4x²(cos²(x) - sin²(x)).

The function for this problem is defined as follows:

y = 4x²sin(x)cos(x)

The function is a product of three functions, hence the product rule is applied, as follows:

dy/dx = [4x²]'sin(x)cos(x) + 4x²[sin(x)]'cos(x) + 4x²sin(x)[cos(x)]'.

The derivatives are given as follows:

Hence the derivative of the function is defined as follows:

dy/dx = 8xsin(x)cos(x) + 4x²cos²(x) - 4x²sin²(x)

dy/dx = 8xsin(x)cos(x) + 4x²(cos²(x) - sin²(x)).

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The total length is 115 km.

Let "x" be the complete lengh. So, in order to find 20% of that length we need to multiply by 0.2, which equals 20%. And it needs to equal 23 km. Hence the equation should be the following:

[tex]0.2x=23[/tex]

[tex]\frac{0.2x}{0.2} =\frac{23}{0.2} \\ \\x=115[/tex]

To verify the answer, calculate 20% of the result (115), and it should equal 23 km. Let's see!

[tex]115*0.2=\\ \\23[/tex]

The total length is 115 km.

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The composite result function (h o g)(x) in the given functions g(x) = 9 + 4x and h(x) = x + 21/5 is 4x + 66/5.

A function is simply a relationship that maps one input to one output.

Given the data in the question;

To find (h o g)(x), first set up the composite result function h(g(x)).

h(x) = x + 21/5

h( g(x) ) = g(x) + 21/5

Plug g(x) = 9 + 4x

h( g(x) ) = ( 9 + 4x ) + 21/5

Simplify

h( g(x) ) = 9 + 4x + 21/5

h( g(x) ) = 4x + 9 + 21/5

h( g(x) ) = 4x + 66/5

Therefore, the composite function h( g(x) ) is 4x + 66/5.

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a)

The class modal interval is 24 ≤ a < 26.

b)

The Mean age of the employee is 23.

It is the average value of the set given.

It is calculated as:

Mean = Sum of all the values of the set given / Number of values in the set

We have,

Age                 Frequency (f)      Midpoint (x)    fx

18 ≤ a < 20       3                            19                 57

20 ≤ a < 22      2                           21                  42

22 ≤ a < 24      7                           23                  161

24 ≤ a < 26      8                           25                  200

26 ≤ a               0                

Now,

Sum of all the frequencies.

N = 3 + 2 + 7 + 8 = 20

Sum of fx.

= 57 + 42 + 161 + 200

= 460

Now,

Mean = 460/20

Mean = 23

Now,

Class modal interval.

= 24 ≤ a < 26

Because in the class interval, the frequency is the highest.

Thus,

The class modal interval is 24 ≤ a < 26.

The Mean is 23.

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Answer:

Step-by-step explanation:

The distance between two numbers on the real number line is simply the absolute value of their difference. So, to find the distance between the numbers a = 12 and b = 3, we calculate:

distance = |a - b| = |12 - 3| = |9| = 9

Therefore, the distance between the numbers a = 12 and b = 3 on the real number line is 9 units.

Answer:

Step-by-step explanation:

12.1+|-11|=12

1. Using the conversion rate of 1 kilometer = 0.621371 miles, Oskar determine the distance of his trip in miles.

2. Oskar's 165 kilometer trip is equivalent to 101.87995 miles.

3. The difference between kilometers and miles is that a kilometer is a metric unit of length and a mile is an imperial unit of length.

Paragraph 1: To convert kilometers to miles, Oskar will need to use the conversion rate of 1 kilometer = 0.621371 miles.

This conversion rate can be found on any formula sheet, and it will help Oskar determine the distance of his trip in miles.

Paragraph 2: To convert 165 kilometers into miles, Oskar will simply need to multiply 165 by 0.621371.

The result will give him the distance in miles.

For example, 165 * 0.621371 = 101.87995 miles. Therefore, Oskar's 165 kilometer trip is equivalent to 101.87995 miles.

Paragraph 3: Oskar might be traveling in a country where the maps are labeled in kilometers instead of miles. This is common in many countries, including most of Europe and many countries in Asia. The difference between kilometers and miles is that a kilometer is a metric unit of length and a mile is an imperial unit of length. A kilometer is equal to 0.621371 miles, while a mile is equal to 1.60934 kilometers. It's important to be aware of the units used in different countries to ensure accurate navigation.

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Answer:

Step-by-step explanation:

11≥2x-5

or

2x-5≤11

2x≤11+5

x≤16/2

x≤8

2x-5>15

2x>15+5

2x>20

x>20/2

x>10

so either x≤8

or

x>10

Answer: x</= 8 and x>10

Not sure what you are specifically asking for here is the answers for both

Step-by-step explanation:

Step 1: Move the terms

Step 2: Calculate

Step 3: Divide both sides

Answer:

Stefan borrowed $8000 on his car loan and $4000 on his student loan.

Step-by-step explanation:

a. Let x be the amount of money Stefan borrowed on his car loan and y be the amount he borrowed on his student loan. According to the problem, Stefan borrowed twice as much on his car loan as on his student loan, so x = 2y.

b. The annual interest on the car loan is $360 more than the interest on the student loan. We can set up an equation as follows:

0.08x - 0.07y = 360

c. Substituting x = 2y from equation (a) into equation (b), we get:

0.08(2y) - 0.07y = 360

0.16y - 0.07y = 360

0.09y = 360

y = 4000

So, Stefan borrowed $4000 on his student loan. Using equation (a), we can find the amount he borrowed on his car loan:

x = 2y = 2(4000) = 8000

Therefore, Stefan borrowed $8000 on his car loan and $4000 on his student loan.

The following currents are present in the circuit: I₁ = 0.492 A, I₂ = -0.428 A, I₃ = 0.920 A. They are found by Kirchoffs law and solving simultaneously.

In mathematics, "inequality" refers to a relationship between two expressions or values that is not equal to each other. Therefore, inequality emerges from a lack of balance.

Kirchoff's law and Junction Law will be applied given the various resistances and the circuit.

Apply Kirchoff's law to the left side loop as a starting point.

E₁ + E₂ = (r₁ + R₁ + R₄) I₁ + ( R₂ + r₂ ) I₃

18 + 3 = ( 0.5 + 8 + 15 ) I₁ + ( 10 + 0.25 ) I₃

21 = 23.5 I₁ + 10.25 I₃ —- ( 1 ) ( 1 )

Apply Kirchoff's law to the right side loop as the next step.

E3 - E4 - E2 equals (r3 - r4 - R3) I₂ - ( r₂ + R₂ ) I₃

12 - 24 - 3 = ( 0.75 + 0.25 + 12 ) I₂ - ( 0.25 + 10 ) I₃

-15 = 13 I₂ - 10.25 I₃ —- ( 2 ) ( 2 )

Note: I1 = I2 + I3 when using the Law of Junction.

concurrently solve equations (1) and (2)

I1=0.492A, I2=-0.428A, and I3=0.920A

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The average weight of carry-on luggage by passengers in airplanes is (15.7, 20.3) pounds.

The margin of error to be used is 2.3 pounds.

where z is the Z-score that corresponds to the desired confidence level (95% confidence corresponds to a Z-score of 1.96), standard deviation is the population standard deviation (7.5 pounds), and sample size is the number of items in the sample (25).

       Margin of Error = 1.96 * (7.5 / sqrt(25)) = 2.3 pounds

        (average weight - margin of error, average weight + margin of error)

         = (18 - 2.3, 18 + 2.3) = (15.7, 20.3) pounds.

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7319.6 miles is the estimate of the average distance from the earth to the moon

The length along a line or line segment between two points on the line or line segment.

We can use the triangle formed by the earth's center, point A, and the moon to find the distance.

Let us use the law of cosines to find the distance from the earth to the moon.

d = √3960² + 6156² - 2(3960)(6156)cos(90))

The value of cos90 is 0.

d = √3960² + 6156²

d=√15681600+37896336

d=√53577936

d=7319.6 miles.

Hence,7319.6 miles is the estimate of the average distance from the earth to the moon

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Answer:

$12,000

Step-by-step explanation:

2000([tex](1 + \frac{.05}{2}) ^{2(3)}[/tex]

12,000

The smallest positive integer n for which Sn is an integer is 063.

What is integer?

The Latin term "Integer," which implies entire or intact, is where the word "integer" first appeared. Zero, positive numbers, and negative numbers make up the particular set of numbers known as integers.

Let [tex]K=^9E_{i=11}\frac{1}{i}[/tex].

Examining the terms in S1, it can be seen that S1 = K + 1 since each digit n appears once and 1 appears an extra time.

Now consider writing out S2.

Each term of K will appear 10 times in the units place and 10 times in the tens place (plus one extra 1 will appear), so -

S2 = 20K + 1

In general, the equation is -

[tex]S_n=(n10^{n-1})K+1[/tex]

Because each digit will appear [tex]10^{n-1}[/tex] times in each place in the numbers [tex]1,2,......,10^{n-1}[/tex]and there are n total places.

The denominator of K is [tex]$D = 2^3\cdot 3^2\cdot 5\cdot 7$[/tex] .

For Sn to be an integer [tex]n10^{n-1}[/tex] must be divisible by D.

Since, [tex]10^{n-1}[/tex] only contains the factors 2 and 5 (but will contain enough of them when n ≥ 3), we must choose n to be divisible by [tex]$3^2\cdot 7$[/tex] .

The smallest such n, the answer is 063.

Therefore, the integer is 063.

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This sample proportion is roughly normally distributed for large samples, with a mean of μˆP=p. and a standard deviation of σˆP=√pqn.

An equation that sets two ratios at the same value is known as a percentage. For instance, if there is one boy and three females, you can phrase the ratio as 1: 3 (there are three girls for every one boy), which means that 3 out of every four girls and one out of every four boys are female.

A ratio that links a portion to the whole is a percentage. For instance, there are 80 women and 20 men among the 100 students in the class. Men make up 20% of the population, or 20/100. Women make up 80% of the population.

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In the attachment......

The global extreme values of the function f(x, y) = x² + 2(y²) on the circle x² + y² = 1 are,

The maximum value of f on the circle x² + y² = 1 is,

⇒ f(0, ±1) = 2

And, the minimum value is,

⇒ f(±1, 0) =  1

The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.

Given that;

Function is,

f(x, y) = x² + 2(y²)

And, Equations of circle is,

x² + y² = 1

Hence, The maximum value of f on the circle x² + y² = 1 is,

⇒ f(0, ±1) = 0² + 2(1²) = 2

And, the minimum value is,

⇒ f(±1, 0) = 1² + 2 × 0 = 1

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Answer:

3 miles

Step-by-step explanation:

The distance between Arati and Ava can be calculated using the Law of Cosines. Let's call the distance between Arati and Ava as "d". We know that:

a = 2 (distance skied by Arati)

b = 3 (distance skied by Ava ) c = d (distance between Arati and Ava) A = 45 (angle between a and b)

Plugging these values into the Law of Cosines formula:

d^2 = 2^2 + 3^2 - 2 * 2 * 3 * cos(45)

d^2 = 4 + 9 - 12 * (√2 / 2)

d^2 = 13 - 12 * √2

d = √(13 - 12 * √2)

To the nearest mile, the distance between Arati and Ava is approximately 3 miles.

The tan(t−π) = 74of the given trigonometric function, tan(t−π), is 74

From the question, we are to determine the value of trigonometric function tan(t−π) using the given information.

The given information is tan(t) = 74

We can use the following identity to solve this problem:

tan(t - π) = tan(t) - tan(π) / 1 + tan(t)tan(π)

Since tan(π) = 0

This can be simplified into

tan(t - π) = tan(t) / (1 - 0)

tan(t - π) = tan(t)

Thus,

We just need to find tan(t)

Given that tan(t) = 74.

Hence, tan(t−π) = 74

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The radius of the sphere is half of its diameter, so the radius is 30/2 = 15 inches.

The formula for the volume of a sphere is V = (4/3)πr³, where r is the radius.

Substituting the given values, we get:

V = (4/3)π(15)³

V = (4/3)π(3375)

V = 4500π

Therefore, the volume of the sphere is 4500π cubic inches.

The shortest distance between the two lines L1 and L2 is 0.

The shortest distance between two lines can be found using the cross product of their direction vectors.

The direction vectors of line L1 and L2 can be found as:

L1 = B - A = (2 - 3, 1 - 2, 0 - 1) = (-1, -1, -1)

L2 = D - C = (3 - 2, 0 - 4, -2 - (-1)) = (1, -4, -3)

The cross product of the direction vectors of L1 and L2 gives the normal vector to the plane formed by the two lines:

cross(L1, L2) = (1 + 4, -1 - 4, 3 + 1) = (5, -5, 4)

The normal vector of the plane formed by the two lines, and a point on line L1 (A = (3, 2, 1)), can be used to find the equation of the plane:

5x - 5y + 4z = d

5 * 3 - 5 * 2 + 4 * 1 = d

15 - 10 + 4 = d

9 = d

So the equation of the plane formed by the two lines is:

5x - 5y + 4z = 9

The shortest distance between the two lines is equal to the distance between a point on line L1 (A = (3, 2, 1)) and the plane formed by the two lines:

d = abs(9 - (5 * 3 - 5 * 2 + 4 * 1)) / sqrt(5^2 + (-5)^2 + 4^2)

d = abs(9 - 9) / sqrt(29)

d = 0 / sqrt(29)

d = 0

Therefore, the shortest distance between the two lines L1 and L2 is 0.

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So, adjusted to three decimal places, the lacking angles in the triangle are B = 80°24', a = 1.042 cm, and c = 5.852 cm.

The number of important digits is the total number of digits, excluding the decimal point, all leading zeros, and some following zeroes. The number of decimal points is the number to the left of the decimals.

We are given that triangle ABC is a right triangle with C = 90°, A = 9° 36', and b = 5.812 cm.

To find B, we can use the fact that the sum of the angles in a triangle is 180°. Therefore, we have:

B + A + C = 180°

B + 9°36' + 90° = 180°

B = 80°24'

To find a, we can use the trigonometric function tangent.

We have:

tan A = opposite/adjacent

tan 9°36' = a/b

Solving for a, we get:

a = b tan A = 5.812 cm tan 9°36' ≈ 1.042 cm

The Pythagorean theorem, which says that in a right triangle, the square of the hypotenuse equals the total of the squares of the two sides (a and b), can be used to determine c.

We have:

c² = a² + b²

c² = (1.042 cm)² + (5.812 cm)²

c² ≈ 34.235 cm²

c ≈ √34.235 cm²

c ≈ 5.852 cm

Therefore, the missing parts of the triangle are B ≈ 80°24', a ≈ 1.042 cm, and c ≈ 5.852 cm, rounded to three decimal places.

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Answer:

1

Step-by-step explanation:

Because of the Pythagorean Identity [tex]\sin^2\theta+\cos^2\theta=1[/tex], then the answer is simply 1 as the angle does not matter.

The two lines have same slope with opposite signs thus, the linear routes are perpendicular, and Ty and Leo will pass through a common coordinate.

A perpendicular is a straight line in mathematics that forms a right angle (90 degrees) with another line. In other words, two lines are perpendicular to one another if they connect at a right angle. If two segments PQ and RS connect at right angles, we may say that they are perpendicular to one another.

For the given coordinates of Ty and Leo let us calculate the slope of the line.

The slope of the line is given as:

m = (y2 - y1) / (x2 - x1)

For Ty:

m = (1 - 3) / (0 + 1) = -2

For Leo:

m = (2 - 4) / (0 - 1) = 2

The two lines have same slope with opposite signs thus, the lines are perpendicular, and Ty and Leo will pass through a common coordinate.

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Answer:

43 games

Step-by-step explanation:

The number of home games won by the women’s basketball team is 30 * 1/2 = 15.

The number of away games won by the women's basketball team is 42 * 2/3 = 28.

Therefore, the total number of games won by the team is 15 + 28 = 43.

Answer:

Step-by-step explanation:

Absolute Change:

The absolute change in the politician's support is calculated as the difference between the final support percentage (53%) and the initial support percentage (32%):

53% - 32% = 21 percentage points

So, the absolute change in the politician's support is 21 percentage points.

Relative Change:

The relative change in the politician's support is calculated as the absolute change divided by the initial support percentage, multiplied by 100 to express it as a percentage:

(21 / 32) * 100 = 65.625%

Rounding to the nearest tenth of a percent, the relative change in the politician's support is 65.6%.

So, the absolute change in the politician's support is 21 percentage points, and the relative change is 65.6%.

In this case, the absolute change in the politician's support is an increase of 21 percentage points, and the relative change is an increase of 65.6%.

In this situation, the absolute change in the politician's support can be calculated by subtracting the original value from the new value. So, 53% (new value) - 32% (original value) = 21%. Thus, the absolute change in support is 21 percentage points.

The relative change is the absolute change divided by the original value. So, 21% (absolute change) ÷ 32% (original value) = 0.65625. To get the relative change as a percentage, we need to multiply this decimal by 100, and round to the nearest tenth of a percent, which gives us 65.6%.

Therefore, the politician's support has increased by an absolute change of 21 percentage points, and a relative change of 65.6%.

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