Kyle is deciding which class to sign up for. It is offered by two different teachers, who each teach it at three different times. Which of the following tables lists all possible outcomes if Kyle randomly selects the time and teacher?

The percentage of rural neighborhoods in the county is 37.5%.

A percentage is a way of expressing a number as a fraction of 100. For example, if we say that 50% of a class is girls, we mean that 50 out of 100 students are girls.

Now, let's go back to the problem. We are given that the ratio of urban to rural neighborhoods is 5:3. This means that for every 5 urban neighborhoods, there are 3 rural neighborhoods. We can think of this ratio as a fraction:

urban neighborhoods/rural neighborhoods = 5/3

To find the percentage of rural neighborhoods, we need to express the number of rural neighborhoods as a fraction of the total number of neighborhoods in the county. Let's say that there are 8 neighborhoods in total (5 urban and 3 rural). Then, the fraction of rural neighborhoods would be:

rural neighborhoods/total neighborhoods = 3/8

To express this fraction as a percentage, we need to multiply it by 100:

(rural neighborhoods/total neighborhoods) x 100 = (3/8) x 100 = 37.5%

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4f

Step-by-step explanation:

f(4)Move 44 to the left of ff.4f

Answer:

f(4) = 5

Step-by-step explanation:

f(4) means what is the value of y when x = 4

locate x = 4 on the x- axis

go vertically up to meet the graph at (4, 5 )

then when x = 4 , y = 5 , so

f(4) = 5

Millimeter (mm) and inch are both units of measurement for length, but they are not equivalent. One inch is equal to 25.4 millimeters. To convert inches to millimeters you multiply the number of inches by 25.4, for example 2 inches is equal to 50.8 millimeters. It's important to note that you can also use a conversion calculator or a conversion table to convert inches to millimeters.

A millimeter (mm) and an inch are both units of measurement for length. However, they are not equivalent and cannot be directly compared.

A millimeter is a metric unit of length, commonly used in most countries around the world. It is a unit of the International System of Units (SI) and it is one of the most widely used units of length in science and engineering. An inch, on the other hand, is an imperial unit of length that is mainly used in the United States. It is part of the British Imperial system of measurements and it is one of the most widely used units of length in the United States.

To convert inches to millimeters, we use the conversion factor that 1 inch is equal to 25.4 millimeters. So to convert inches to millimeters you multiply the number of inches by 25.4. For example, if you want to convert 2 inches to millimeters, you would multiply 2 by 25.4 to get 50.8 millimeters. It's important to note that you can also use a conversion calculator or a conversion table to convert inches to millimeters.

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The amount of water in each pool are 3600 liters and 2400 liters.

Suppose that we have to measure the rate of change of y as x changes, then we have:

\(Rate = \dfrac{y_2 - y_1}{x_2 - x_1}\)

Noted that, we have to divide the change in independent variable so that we get some idea of how much the dependent quantity changes as we change the independent .

Consider that x be the amount of time it takes both pipes draining together to empty the pool .

First pipe empties at the rate gives;

540,000/150 g=3600 liters/min

Second pipe empties at the rate gives;

540,000/225=2400 liters/min

Together, both pipes empties at the rate are;

3600+2400=6000 liters/min,

Therefore, our equation to solve is:

6000x = 540000

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Based on the fact that Saudi Arabia can either produce 45 barrels or 70 bushels, their opportunity cost for one barrel is 1.56 bushels

The opportunity cost for producing one barrel can be found by the formula:

= Number of bushels capable / Number of barrels

Solving gives:

= 70 / 45

= 1.56 bushels

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The pressure is assessed through the ideal gas equation and Dalton's law

Partial Pressure of hydrogen gas in the gas collecting tube can be calculated as:

According to Dalton's law, the total pressure of the system will be the sum of partial pressure of all gases

In the system, the pressure is exerted by the water and  gas.

Total pressure = P(water) + P(Hydrogen)

P(hydrogen) = 746 mm Hg (given) = 19.8 mm Hg +

P(hydrohen) = = 746 mm Hg - 19.8 mm Hg

= 726.2 mm Hg

So, the partial pressure of Hydrogen was found to be 726.2 mm Hg.

To calculate the volume of hydrogen at STP, ideal gas equation is used.

For this, we calculate the moles of Hydrogen in given conditions:

Pressure = 726.2 mm Hg

 = 726.2/760

= 0.955 atm

Therefore, The pressure is assessed through the ideal gas equation and Dalton's law

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Answer:

1.75n

Step-by-step explanation:

First we should just ignore the 'n' in '4n' for now.

So we have 7 and 4 left.

Now we would do 7/4=1.75

Now, we just add on the 'n' to 1.75 and we would get 1.75n

Hope this helps! :)

Answer:

3

8

Step-by-step explanation:

probability= no. of blue marbles

total no. of marbles

= 3

8

Answer:

(I don't have the complement sign of sets, so I've used "©" to denote compliment)

L.H.S.

(B-A)∪C

= (B∩A©)∪C

= (B∪C)∩(A©∪C)

= (B∪C)∩(A-C)©

= (B∪C)-(A-C) = R.H.S.

(Proved)

Answer:

PEMDAS

Step-by-step explanation:

P - Parentheses (Brackets also!)

E - Exponents

M and D - Multiplication and division. Many people think multiplication has to be done first as said in "PEMDAS" but it doesn't. Do multiplication and division according to which ever one is farthest to the left (left to right).

A and S - Addition and subtraction. Same thing applies here, neither addition or subtraction has to be done first, just do them according to which one is farthest to the left when reading the expression from left to right.

The null hypothesis and conclude that the average number of months looking for jobs after graduation is different for GMU and University of Alaska students with 95% confidence.

H0: The average number of months looking for jobs after graduation is the same for GMU and University of Alaska students. Ha: The average number of months looking for jobs after graduation is different for GMU and University of Alaska students.

alpha = 0.05

df = ngmu + nua - 2 = 198 (degrees of freedom)

t* = t(0.025, 198) = 1.972 (from t-distribution table)

SE = sqrt[(sgmu^2/ngmu) + (sua^2/nua)] = sqrt[(2.1^2/100) + (2.3^2/100)] = 0.324

tobt = (xgmu - xua) / SE = (3.6 - 2.7) / 0.324 = 2.77

Since tobt (2.77) > t* (1.972), we reject the null hypothesis and conclude that the average number of months looking for jobs after graduation is different for GMU and University of Alaska students with 95% confidence.

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Answer:

31 and 73

Step-by-step explanation:

Writing this is variable form,

x+y = 104

x-y = 42

If we use the process of elimination and add the system of equations together;

2x = 146

x = 73

Substituting that back in;

x - y = 42

(73) - y = 42

y = 31

Answer:

\(a=73 \text{ and } b=31\)

Step-by-step explanation:

\(a+b=104 --- (1)\\a-b=42 ---(2)\\\)

Add (1) and (2), we get

\(2a=104+42\\a=\dfrac{146}{2}\\=73\)

\(73-b=42\\-b=42-73\\b=31\)

The volume of the rectangular building is 2,731,050 feet³ depending on the given height, base and width.

The volume of the building will be calculated by the formula -

Volume = length × breadth × height

Thus, keeping the value of each component of building in the formula to find the volume of the building.

Volume of building = 255 × 255 × 42

Performing multiplication on Right Hand Side of the equation to find the value of volume

Volume of building = 2,731,050 feet³

Therefore, the volume of the building is 2,731,050 feet³.

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An ice cream shop has 10 flavors and one can choose 4 different flavors. The question asks for the total number of possible flavor combinations.Therefore, we need to find the number of ways in which 4 flavors can be chosen from 10 flavors.

In such cases where order does not matter and repetitions are not allowed, we can use the formula for combinations which is as follows:C(n, r) = n! / (r! (n - r)!)Where n is the total number of items, r is the number of items being chosen at a time and ! represents the factorial function.

Using this formula we can find the total number of possible flavor combinations. Substituting the values in the above formula, we get:C(10, 4) = 10! / (4! (10 - 4)!)C(10, 4) = (10 * 9 * 8 * 7) / (4 * 3 * 2 * 1)C(10, 4) = 210Hence, there are 210 possible flavor combinations when one can choose 4 different flavors

.Explanation:The formula to be used for this type of question is combination. Combination is the method of selecting objects from a set, typically without replacement (without putting the same item back into the set) and where order does not matter. The formula for combination is given by C(n,r)=n!/(r!(n-r)!).

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Consider three random variables, U, V, and W. The answer is E(W) = 2.

To solve for E(W), we need to use the fact that U is equal to both 3V+2 and 5W-23. We can set these two expressions equal to each other:

3V + 2 = 5W - 23

Solving for V in terms of W, we get:

V = (5W - 25) / 3

Now we can use the formula for the expected value of a linear function of a random variable:

E(aX + b) = aE(X) + b

In this case, we have:

V = (5W - 25) / 3

So:

E(V) = E((5W - 25) / 3) = (5/3)E(W) - 25/3

We know that E(V) = -5, so we can substitute that in:

-5 = (5/3)E(W) - 25/3

Solving for E(W), we get:

E(W) = (-5 + 25/3) / (5/3) = 2

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Answer:

\(1066\)

Step-by-step explanation:

\(( - 26) \times ( - 41)\)

\(26 - 41\)

\(1066\)

Answer:

21,637

Step-by-step explanation:

You can just use a caculator- Or simple multiplication by putting it on top of eachother.

You can do this many ways,just multiply with pen and paper,put 250 on top,and 85 on bottom which is 21,250,the add from there!

Hope I helped!!

Answer:

\(85 \times 250 = 21250 + 387 = 21637\)

Step-by-step explanation:

First, start by solving \(85 \times 250\), there are many ways to get the answer, but using a calculator yields: \(21250\).

From here, add \(387\), and get:

\(21250 + 387 = 21637\)

The graph that exemplifies the function of inequality that is discussed below is attached to this post.

Below, this is further discussed.

Typically, a diagram consisting of a series of one or more points, lines, line segments, curves, or regions is used to depict how one variable fluctuates in relation to one or more other variables. a visual depiction of how one variable changes in relation to one or more other variables.

a list of all the places whose coordinates, when combined, satisfy the specifications for a certain connection (such as a function)

Finally, the graph that demonstrates how inequality functions may be understood as related below. It is listed below.

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The odds in favor of juniors planning to attend college are 3 to 1.

(a) For seniors, to find the proportion who plan to attend college, we can use the odds given:

Odds = (Number planning to attend college) : (Number not planning to attend college)

3.57 : 1

To convert odds to proportion, we can use the formula:

Proportion = (Number planning to attend college) / (Total number of seniors)

We know that the total number of seniors is the sum of those planning and not planning to attend college:

Total number of seniors = 3.57 + 1 = 4.57

Now, we can calculate the proportion:

Proportion (seniors) = 3.57 / 4.57 = 0.781

Rounding to three decimal places, the proportion of seniors planning to attend college is 0.781.

(b) For juniors, we are given the proportion who plan to attend college, which is 0.75. To find the odds in favor, we can use the formula:

Odds = (Number planning to attend college) : (Number not planning to attend college)

Since the proportion of juniors planning to attend college is 0.75, this means that 75% plan to attend and 25% do not. To express this as odds, we can set the number planning to attend college as 75 and the number not planning to attend as 25:

Odds (juniors) = 75 : 25

Now, we can simplify the ratio:

Odds (juniors) = 3 : 1

So, the odds in favor of juniors planning to attend college are 3 to 1.

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The cylinder with maximum volume has a radius of 6.5 feet and a height of 2.5 feet.

Let the radius and height of the cylinder be r and h, respectively. Since the cylinder is inscribed in the cone, its height and radius must satisfy the following conditions:

The height of the cylinder must be equal to the height of the cone, i.e. h = 2.5 feet.

The radius of the cylinder must be less than or equal to the radius of the base of the cone, i.e. r ≤ 6.5 feet.

To maximize the volume of the cylinder, we can use the formula for the volume of a cylinder:

V = πr^2h

Substituting h = 2.5, we get:

V = 2.5πr^2

Now, we can express the volume of the cylinder in terms of a single variable, r. To do this, we use the fact that the cylinder is inscribed in the cone, so the cross-sectional area of the cylinder is a fraction of the cross-sectional area of the cone. Specifically, the ratio of the areas is equal to the square of the ratio of the radii:

r/6.5 = h/2.5

Solving for h, we get:

h = 2.5r/6.5

Substituting into the formula for the volume of the cylinder, we get:

V = 2.5πr^2 = 2.5πr^2(h/2.5) = πr^2(2r/6.5)

Simplifying, we get:

V = (4π/13)r^3

To find the value of r that maximizes V, we can take the derivative of V with respect to r and set it equal to zero:

dV/dr = (4π/13)3r^2 = 0

Solving for r, we get:

r = 0

This is not a valid solution since r must be greater than zero. Therefore, we must look for a maximum value of V on the interval 0 < r ≤ 6.5.

To do this, we can evaluate V at the endpoints of the interval and at any critical points in the interior. Since we already know that there are no critical points, we just need to evaluate V at the endpoints:

V(0) = 0

V(6.5) = (4π/13)(6.5)^3 ≈ 724.06

Therefore, the cylinder with maximum volume has a radius of 6.5 feet and a height of 2.5(6.5/6.5) = 2.5 feet.

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The ratio of volume to surface area is 7/18..

To find the ratio of volume to surface area, we need to calculate the volume and surface area of the shape.
The shape is made up of seven unit cubes, so its volume is 7 cubic units.
To find the surface area, we need to count the number of faces that are visible on the outside of the shape. There are six faces on each cube, and we can see the faces on the outside of the shape. There are a total of 18 faces visible.
Each face is a square with an area of 1 square unit, so the total surface area is 18 square units.
Therefore, the ratio of volume to surface area is:
7 cubic units / 18 square units
Simplifying this fraction, we get:
7/18
So the ratio of volume to surface area is 7/18.
The shape you described is created by joining seven unit cubes. The volume of this shape can be found by counting the number of unit cubes, which is 7. So, the volume is 7 cubic units.
To find the surface area, we need to count the number of exposed faces on the shape. Each cube has 6 faces, but since the cubes are joined together, some faces are not exposed. After analyzing the shape, we find that there are 24 exposed faces. So, the surface area is 24 square units.
Thus, the ratio of the volume to the surface area is 7:24 (7 cubic units to 24 square units).

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rad 128 can be broke into 64*2

square root of 64 is 8, times -5,

which leaves -40rad2

Answer:

F(-1,2), G(2,4), H(3,7)

Step-by-step explanation:

When you move left to right, it changes the x in (x,y)

When you move up and down, it changes the y in (x,y)

So, if it moves 1 unit to the left, the x decreases by 1

And if it goes 4 units up, the y increases by 4

The critical value of t for constructing a 99% confidence interval with a sample size of 30 and a sample standard deviation of 0.05 is 2.7564.

A confidence interval is a range of values within which the population parameter is estimated to lie with a certain level of confidence. In this case, we are constructing a 99% confidence interval for the population mean. The critical value of t is used to determine the width of the confidence interval.

The formula for calculating the confidence interval for the population mean is:

Confidence interval = sample mean ± (critical value) * (standard deviation of the sample / square root of the sample size)

Given that the sample size is 30 (n = 30) and the standard deviation of the sample is 0.05 (S = 0.05), we need to find the critical value of t for a 99% confidence level. The critical value of t depends on the desired confidence level and the degrees of freedom, which is equal to n - 1 in this case (30 - 1 = 29). Looking up the critical value in a t-table or using statistical software, we find that the critical value of t for a 99% confidence level with 29 degrees of freedom is approximately 2.7564.

Therefore, the 99% confidence interval for the population mean would be calculated as follows: sample mean ± (2.7564) * (0.05 / √30). The final result would be a range of values within which we can be 99% confident that the true population mean lies.

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Answer:

B, Rectangle.

Answer:

A man is selling his old special dishes for 7 dollars each. You have to pay 20 dollars down for the case that holds the dishes no matter how many you buy.

A dog sitter makes 20 dollars just to bring their own leashes and food for dogs that they watch. They also make 7 more dollars per hour that they have to watch the dog.

Step-by-step explanation:

a. The mean of X is 1.7549 and the standard deviation is 0.3536.

b. To calculate the proportion of washing machines that will last for more than 15 years, we need to use the standard normal distribution table. The z-score for 15 years is (15-14)/0.3536 = 2.822. Using the table, we find that the proportion of washing machines that will last for more than 15 years is 0.9968.

c. To calculate the proportion of washing machines that will last for less than 10 years, we need to use the standard normal distribution table. The z-score for 10 years is (10-14)/0.3536 = -2.822. Using the table, we find that the proportion of washing machines that will last for less than 10 years is 0.0032.

d. To calculate the 90th percentile of the life of the washing machines, we need to use the standard normal distribution table. The z-score for the 90th percentile is 1.28. Using the table, we find that the 90th percentile is 17 years.

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Answer:

  4 and 8

Step-by-step explanation:

Let 'a' represent one of the numbers. Then the other is 12-a, and their difference is ...

  a - (12-a) = -4

  2a = 8 . . . . add 12

  a = 4 . . . . . divide by 2

  12-a = 8 . . . . find the other number

The two numbers are 4 and 8.

Answer: x = 4, y = 8

Step-by-step explanation:

Let the two numbers be x and y

sum of the two numbers will be

x + y =  12 ------------------------------1

Difference of the two numbers

x - y  =  -4 ----------------------------- 2

Now, to find the two numbers , we solve equation 1 & 2 together

  x + y =  12

  x - y  =  -4

we now add the two equations to eliminate y

   2x =  8

      x = 4.  Now to find the value of y, we substitute for x in any of the equation above

 x + y  = 12

 4  + y = 12

        y =  12 - 4

        y  =  8