Calculate the potential energy of a 50kg boulder at the ledge of a cliff 250m high (using guess method)

Answers

Answer 1

The potential energy of a 50kg boulder at the ledge of a cliff 250m high is 122500 J.

Potential energy is the energy carried by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

The PE energy of a boulder 250 m from the ground is given by the formula

PE = h x m x g    where h is the height above the ground, m is the mass, and g is the acceleration of gravity.

Putting the given values in the equation

PE = 250m x 50 kg x 9.8 m/s²  =  122500 J

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Related Questions

Questions 2-5. Simplify each of the following.
2. (-1/3)(12)(-3/4)
3. 1/4(-8a + 4b)
4. (24x - 12y)(-1/6)
5. 1/2(4c - 6d) - 1/3(6c-9d)​

Answers

2. (-1/3)12 => -12/3 => -4
-4(-3/4) => 12/4 => 3

3. 1/4(-8a)=> -8a/4 => -2a

1/4(4b)=> 4b/4 => b

-2a+b

4. -1/6(24x) => 24x/-6 => -4x

-1/6(-12y) => -12y/-6 => 2y

2y-4x


5. 1/2(4c-6d)

1/2(4c)=> 4c/2 => 2c
1/2(-6d)=> -6d/2 => -3d

-3d+2c….

-1/3(6c-9d)
-1/3(6c)=> 6c/-3 => -2c

-1/3(-9d)=> -9d/-3 => 3d

3d-2c


going back to the first part and adding everything together:

-3d+2c+3d-2c=0

Questions answered to the best of knowledge

a $300 trampoline is 25% off . what is the sale price of the trampoline ?

Answers

Answer: The sale price would be 225.00

The selling price of the trampoline will be $225.


What is the percentage?

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that there is a 25% discount on the price $300. The discounted price will be calculated as:-

Discounted price = 300 x 0.75

Discounted price = $225

Therefore, the selling price of the trampoline will be $225.

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After Susanna parked her car she paid for 3/5 of an hour of parking. How many minutes did she pay for?​

Answers

Answer:

To find out how many minutes Susanna paid for, we need to convert the fraction of an hour to minutes.

There are 60 minutes in an hour. So, to find out how many minutes 3/5 of an hour is, we can multiply 3/5 by 60:

3/5 * 60 = 36

Therefore, Susanna paid for 36 minutes of parking.

Answer:

36 minutes

Step-by-step explanation:

We need to convert hours to minutes and then multiply by a fraction.

1 hour = 60 minutes

3/5 of 60 minutes

3/5 * 60

180/5

36 minutes

If −n Please answer fast!!!

Answers

hi

Step-by-step explanation:

Answer: If you are bored, try Khan Academy, or answer questions on brainly.

Simplity
√75
OA. 3√5
OB. 15√5
O c.
25√3
OD. 5√3

Answers

Simplifying √75 the answer is option D. 5√3.

Surd of numbers.

An expression of a number which has a square root is termed surd. Some procedures are required to solve any given question on surd, especially when the given expression involves numbers that do not have a whole root.

To simplify √75 as required in the question, we have to look for a two numbers. One of these numbers must have a whole square root.

So that we can use 3 and 25.

Thus,

√75 = √(3 x 25)

       = √3 * √25

       = √3 * 5

       = 5√3

√75 = 5√3

The answer is option D. 5√3

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Please help with this one

Answers

The vertex of the quadratic equation:

f(x) = 2x^2 - 8

is (0, -8)

How to find the vertex of the quadratic equation?

For a general quadratic equation:

a*x^2 + b*x + c

The vertex is located at the x-value:

x = -b/2a

Here we have the quadratic equation:

f(x) = 2x^2 - 8

Then the values are:

a = 2

b = 0

c = -8

Then the vertex is at:

x = 0/2*2 = 0

To get the y-value of the vertex, we need to evaluate on x = 0.

f(0) = 2*0^2 - 8 = -8

So the vertex is (0, -8).

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8 hr 18min Divided by 5

Answers

Answer: 99.6 min

Step-by-step explanation:

99.6 minutes for 8hr 18 min divided by 5

four turns flipping a fair coin until a head appears. what is the probability that the first girl is the first to flip a head

Answers

The probability that the first girl is the first to flip a head is; 1/2.

What is the probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

We are given that if the number of toss required is odd as in one attempt represent odd number , we have following sequence of events

H, TTH, TTTTH.....

The required probability P will be as;

P = 1/2 + (1/2)³ + (1/2)⁵..........

As she flipped it in first go the probability is 1/2.

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converting 1,000 mg to 1 gram would require moving the decimal place ________ places to the left.

Answers

Converting 1,000 mg to 1 gram would require moving the decimal place zero places to the left.

Unit conversion is a process with multiple steps that involves multiplication or division by a numerical factor or, particularly a conversion factor. The process may also require selection of the correct number of significant digits, and rounding. Different units of conversion are used to measure different parameters. By definition conversion of units means the conversion between different units and measurements of the same quantity done by the process of multiplication or division. In maths, conversion is the process of changing the value of one form to another for example inches to millimeters, or liters to gallons. Units are used for measuring length, measuring weight, measuring capacity, measuring temperature, and measuring speed.

If we want to calculate how many Grams are 1000 Milligrams we have to multiply 1000 by 1 and divide the product by 1000. So for 1000, we have (1000 × 1) ÷ 1000 = 1000 ÷ 1000 = 1 Gram.

So finally 1000 mg = 1 g

Thus, converting 1,000 mg to 1 gram would require moving the decimal place zero places to the left.

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Two boats left the harbour at the same time. One travelled at 10km/h on a bearing N47degreeE. The other traveled at 8km/h on a bearing of N79degreeE. How far apart are the boats after 45min? Round the distance to nearest tenth of a km.

Answers

Answer:

  4.0 km

Step-by-step explanation:

You want the distance between two boats after 45 minutes if they left at the same time and traveled 10 km/h at N47E, and 8 km/h at N79E.

Law of cosines

The distances the boats traveled in 3/4 hour can be found by multiplying the speed by the time:

  distance = speed · time

  distance = {10 km/h, 8 km/h} · (3/4 h) = {7.5 km, 6 km}

The distance between their positions can be found from the law of cosines:

  c² = a² +b² -2ab·cos(C)

Here, the angle between the vectors is 79° -47° = 32°, so the distance is given by ...

  c² = 7.5² +6² -2·7.5·6·cos(32°) ≈ 15.925671

  c ≈ √15.925671 ≈ 3.9907

To the nearest tenth km, the distance between the boats is 4.0 km.

__

Additional comment

It can be helpful to draw a diagram. A geometry app can measure the distance for you (attachment 1), or a calculator app can calculate it based on the speed vectors (attachment 2).

you choose a number with 3 digits from 0 to 9; the state chooses a three-digit winning number at random and pays you $500 if your number is chosen. Because there are 1000 numbers with three digits, you have probability 1/1000 of winning. Taking X to be the amount your ticket pays you, the probability distribution of X is

Answers

The probability distribution of X is given as follows:

P(X = 500) = 1/1000.P(X = 0) = 999/1000.

How to define a probability distribution?

A probability is defined as the division of the number of desired outcomes by the number of total outcomes.

A probability distribution gives the probability of all the possible outcomes in the context of a problem.

There are two outcomes for this problem, listed as follows:

Winning $500.Winning nothing = losing the game.

Only one of the 1000 combinations are a winning combination, hence the probability distribution of X is given as follows:

P(X = 500) = 1/1000.P(X = 0) = 999/1000.

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if we repeatedly toss a balanced coin, then, in the long run, it will come up heads about half the time. but what is the probability that such a coin will come up heads exactly half the time in 16 tosses

Answers

if we repeatedly toss a balanced coin, then, in the long run, it will come up heads about half the time. but the probability that such a coin will come up heads exactly half the time in 16 tosses is 1 in 65536 (2^16).

This can be calculated using the binomial probability formula which states that the probability of getting a certain number of heads in a certain number of tosses is given by (Number of ways to get the desired number of heads) / (Total number of possible outcomes). In this case, the number of ways to get 8 heads in 16 tosses is equal to 16C8, or 120.

The total number of possible outcomes is equal to 2^16, or 65536. Thus, the probability of getting 8 heads in 16 tosses is 120/65536, which is approximately equal to 1/65536.

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there are 24 juice boxes in a pack, and 6 of them are fruit punch. what percent of the juice boxes are fruit punch?

Answers

Percent of the juice boxes are fruit punch is 25%

Elliot adds 15 ml of creamer to 240 ml of coffee. His creamer is 20%
milk fat.
How much pure milk fat has Elliot added to his coffee?

Answers

Answer:

▪ 20% of 15 ml

(20/100) × 15 ml = 3% pure milk fat

7 pengiuns for $188.88

Answers

Answer:

1 penguin = $26.97

Step-by-step explanation:

188.88/7=

26.971429 which approximately equals 26.97

Coins are placed into a treasure chest, and each coin has a radius of 1.4 inches and a height of 0.0625 inches. If there are 230 coins inside the treasure chest, how many cubic inches of the treasure chest is taken up by the coins? Round to the nearest hundredth and approximate using π = 3.14.

0.38 in3
126.39 in3
353.88 in3
88.47 in3

Answers

Answer:

D. 88.47 in3

Step-by-step explanation:

The volume of a single coin would be the volume of a cylinder with a radius of 1.4 inches and a height of 0.0625 inches. The formula for the volume of a cylinder is V = πr^2h. So, V = 3.14 * (1.4^2) * 0.0625 = 0.38 in^3

Since there are 230 coins, the total volume of the coins would be 230* 0.38 = 87.40 in^3

So, the answer would be 87.40, which is closest to D. 88.47 in3

Answer: D: 88.47 in³​

Step-by-step explanation:

So what you want to do is first find the individual volume of the coins. Use the volume formula: V = πr^2h

Take 1.4 and times it by itself

1.4 x 1.4 = 1.96

Now multiply 1.96 by 0.0625

1.96 x 0.0625 = 0.1225

And times 0.1225 by pi, or in this case, 3.14

0.1225 x 3.14 = 0.38465

Now you have found the individual volume of each coin. You are trying to find how much space all of the coins take up together. The question says that there is 230 coins in total. So times 0.38465 by 230 to find how much space all the coins take up.

0.38465 x 230 = 88.4695 in³

Now round it to the nearest hundredth: 88.47 in³

That is your answer.

Also I took the same test and I picked 88.47 inches cubed and got it right.

Proof:

Have a good day :)))

A coin has been weighted, so that the probability of getting a head is 2/5 and the probability
of getting a tail is 3/5. The coin is thrown twice. Determine the probability of obtaining:
a) 2 heads b) at least one head

Answers

Answer:

6/5

Step-by-step explanation:

easy as pie because 3/5x2=6/5

Answer:

Step-by-step explanation:

What is the distance formula for a triangle?

Answers

The distance formula for a triangle is the Pythagorean Theorem, which states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

The distance formula for a triangle is the Pythagorean Theorem, which outlines a relationship between the three sides of a right triangle. Specifically, the theorem states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. To find the distance between two points in a triangle, you must first determine the length of all three sides. Once you know the lengths of all three sides, you can use the Pythagorean Theorem to calculate the distance between the two points. To use the theorem, you must first calculate the square of the hypotenuse. Then, you must square the lengths of the other two sides and add them together. Finally, you can take the square root of the sum of the squares to calculate the distance between the two points.

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GPS Guided Problem Solving An equilateral triangle's perimeter is 27 ft. The height of the triangle is 7.8 ft. What is the triangle's area?

Answers

The area of the triangle is given by the equation A = 35.1 feet²

What is a Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

The area of the triangle = ( 1/2 ) x Length x Base

An equilateral triangle is a triangle in which all three sides have the same length.

Let the triangle be ΔABC , and

∠A = ∠B = ∠C = 60° and AB = BC = CA

Given data ,

Let the triangle be represented as ABC

Now , the triangle ABC is an equilateral triangle

So , AB = BC = CA

The perimeter of the triangle is P = 27 feet

So , the base length of the triangle AB = 27/3 = 9 feet

The height of the triangle = 7.8 feet

Now , area of the triangle = ( 1/2 ) x Length x Base

Substituting the values in the equation , we get

The area of the triangle A = ( 1/2 ) x 7.8 x 9

The area of the triangle A = 35.1 feet²

Hence , the area of the triangle is 35.1 feet²

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calculer la longueur dun cercle de diametre 78mm

Answers

Answer:

La circunferencia es 245.044 mm

8 multilpy (3y mulitply 0.5)

Answers

Answer:

Step-by-step explanation:

8(3y + 0.5) so first we do 8 * 3 = 24y and 8 * 0.5 = 4. Then that becomes 24y = 4. so now we do 24y / 24 = y bc 24 cancels out, 4 / 24 = 0.166. So y = 0.166. HOPE THIS HELPS!!!

how did the chapter 6 test go? ody, we will be taking a sample from a ppulation. we will use teh average from teh sample to estimate the avrage for the poulation

Answers

(a) Mean of given sample = 75

(b) Mean (60, 80) = 70

(c) All possible samples of size two are 6 (60,70), (60,80), (60,90), (70, 80), (70,90), (80,90) and means are 65, 70, 75, 75, 80, and 85 respectively.

The given sample is (60, 70, 80, 90)

(a) Mean of sample = (60+70+80+90)/4 = 300/4 = 75

(b) Mean of any 2 of scores

let's take (60,80)

mean(60,80) = (60+80)/2 = 70

(c) All possible samples of size 2 are

(60,70), mean(60,70) = 65

(60,80), mean(60,80) = 70

(60,90), mean(60,90) = 75

(70,80), mean(70,80) = 75

(70,90), mean(70,90) = 80

(80,90), mean(80,90) = 85

Therefore, for the given sample (a) Mean of the sample = 75, (b) Mean (60, 80) = 70, (c) All possible samples of size two are 6 (60,70), (60,80), (60,90), (70, 80), (70,90), (80,90) and means are 65, 70, 75, 75, 80, and 85 respectively.

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The complete question is:

How did the Chapter 6 test go? Today, we will be taking a sample from a population. We will use the average from the sample to estimate the average for the population. Let's start with a very simple example. My 5th period is very small. There were only 4 students who took the chapter 6 test. Their scores were: 60, 70, 80, and 90. Answer the following questions:

(a) Find the mean of the sample

(b) Take a sample of any 2 of the scores. Find the mean of your sample.

(c) Figure out all of the possible samples of size two. Calculate a sample mean for each sample of 2.

Solve the following equation for m.
Show all work.
5m + 2 - 3.9m = 2.1(m — 3)
-
m=
A. - 4.2
B. -8.3
C. 8.3
D. no solution

Answers

The solution for "m" for the equation is 8.3.

What is an expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows:

Expression: (Math Operator, Number/Variable, Math Operator)

Given expression

5m + 2 - 3.9m = 2.1(m — 3)

5m + 2 -3.9m = 2.1m - 3(2.1)

1.1m + 2 = 2.1m - 6.3

compare variables on one side and constant other,

2  + 6.3 = 2.1m - 1.1m

8.3 = m

Hence the value of m is 8.3.

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The two-digit number B6, where B is the tens digit, is the square of a positive integer. How many distinct possible values are there for B?

Answers

There are only 2 possible solutions for B, 1 and 3, so that the number forms the two-digit numbers 16 and 36, which are the positive squares of the positive integers 4 and 6.

Now, we have been given a two-digit number, B6.

The numbers whose squares are 2 digit numbers are:

1, 4, 9, 16, 25, 36, 49, 64, 81

From this list, it is evident that there are 2 numbers that end with 6 and are perfect positive squares of a number, in this case, 4 and 6.

4x4 = 16, 6x6 = 36.

Therefore, B can take 2 values, 1 and 3. These are the only distinct possible values of positive integers for B to take.

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At a school, the parking lot is ¾ full. The lot is
noselection
full of cars.

Answers

The fraction of no selection cars is 1/4 in the parking lot.

What is fraction?

A fraction is a portion of a whole and is expressed as a rational number using the in-line notation form a/b or the traditional "display" notation for a and b.

The number is expressed as a quotient in mathematics by dividing the numerator by the denominator.

In the numerator or denominator of a complex fraction is a fraction. A proper fraction has always a numerator that is all the time lower than its denominator. If the numerator is greater, it is referred to as an improper fraction and can also be expressed as a mixed number, which is a proper-fraction remainder divided by a whole-number quotient.

The whole of a fraction is 1

Here parking lot is  ¾ full

So the The lot that is no selection full of cars is

= 1 - ¾

= 4/4 - 3/4

= 1/4

Thus, the fraction of no selection cars is 1/4 in the parking lot.

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5. If 1 tonne of coal cost $2000, what is the cost of 250kg of the same coal?​

Answers

The cost of 250 kg of coal is 500 dollars.

How to find the cost of the coal?

One tonne of coal cost $2000. The cost of 250kg of the same coal can be found as follows:

Let's convert the mass of the coal in kilograms to tonnes.

Hence,

1 kilogram = 0.001 tonnes

250 kilogram = ?

cross multiply

mass of the coal in tonnes = 0.001 × 250

mass of the coal in tonnes = 0.25 tonnes

Hence,

1 tonne = 2000 dollars

0.25 tones = ?

cross multiply

mass of 250 kg of coal = 0.25 × 2000

Therefore,

mass of 250 kg of coal = 500 dollars

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Drina wrote the system of linear equations below : 3x - 2y +-2 | 7x+3y + 26 | -x - 11y +-46. Which type of matrix can be formed using this system of equations? A)a diagonal matrix B)a square matric C)a matrix with 3 rows and 4 columns D) a matrix with 4 rows and 3 columns

Answers

The square matrix can be formed using this system of equations option second is correct.

Matrix:

A matrix is ​​a rectangular array of numbers, variables, symbols, or expressions defined for operations such as subtraction, addition, and multiplication. The size of a matrix (called matrix order) is determined by the number of rows and columns in the matrix. The order of a matrix with 6 rows and 4 columns is expressed as 6×4 and read as 6×4.

We have three linear equations:

3x - 2y = -2

7x + 3y = 26

-x  -11y = 46

To solve the above equations we can use the matrix concept:

The matrix will be:

[tex]\left[\begin{array}{ccc}3&-2&-2\\7&3&26\\-1&-11&-46\end{array}\right][/tex]

The above matrix is a square matrix.

Square Matrix:

A square matrix is ​​a matrix that has the same number of rows and columns. Its order is of the form n x n. The product of these rows and columns also gives the number of elements in a square matrix, so the number of elements in it is always a perfect square.

Thus, the square matrix can be formed using this system of equations option second is correct.

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(2x-3y)(x+5y)=0 where x>0 and y>0
Find the ratio x:y
Give your answer in its simplest form.

Answers

Answer: [tex]3:2[/tex]

Step-by-step explanation:

Using the zero-product property, we know that [tex]2x-3y=0[/tex] or [tex]x+5y=0[/tex]. We can rearrange these cases to yield [tex]x=\frac{3}{2}y[/tex] and [tex]x=-5y[/tex].

However, since [tex]x[/tex] and [tex]y[/tex] have the same sign, we neglect the case [tex]x=-5y[/tex]. This means [tex]x=\frac{3}{2}y[/tex].

[tex]x=\frac{3}{2}y \implies \frac{x}{y}=\frac{3}{2} \implies x:y=3:2[/tex]

Answer: We can use the distributive property to expand the left side of the equation:

2xx + 2x5y - 3yx - 3y5y = 0

Then, combine like terms:

2x^2 + 10xy - 3xy - 15y^2 = 0

Now we can add 3xy + 15y^2 on both sides of the equation to get:

2x^2 + 10xy = 0

We know that x and y are positive, so we can divide both sides by 2:

x^2 + 5xy = 0

and since x>0, we can divide both sides by x:

x + 5y = 0

So the ratio x:y = x/(-5y) = -x/5y.

To simplify we can divide x by -x and 5y by 5y and get the final answer as

x:y = -1:

Step-by-step explanation:

a fair six-sided die with sides labeled 1 through 6 is rolled. quantity a quantity b the probability that the number rolled is closer to 4 than it is to 2 the probability that the number rolled is closer to 5 than it is to 3

Answers

On solving the provided question, we can say that probability that a four or higher number will first emerge on the third or fourth roll.= 4/27 + 8/81 = 20/21

What is probability?

Probability theory, a subfield of mathematics, gauges the likelihood of an occurrence or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a complete set of equally likely possibilities that result in a certain occurrence compared to the total number of outcomes.

On a dice, the numbers 5 and 6 are the ones above 4. The likelihood of receiving a number higher than 4 (i.e., 5 or 6) is = 2/6 = 1/3

and as a result, the likelihood of receiving 4 or less is= 1-1/3 = 2/3

The likelihood that a number larger than 4 will show up on the third roll is equal to

2/3* 2/3 * 1/3 = 4/27

The likelihood that a number larger than 4 will emerge on the fourth roll is equal to =2/3*2/3* 2/3 * 1/3 = 8/81

probability that a four or higher number will first emerge on the third or fourth roll.= 4/27 + 8/81 = 20/21

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For 2011, if foreign students comprise exactly 1/8 of the number of out-of-state undergraduates, indicate which could be the number of in-state undergraduates.
200
330
1320

Answers

The number of in-state undergraduates could not be 200.

What is foreign students comprise?

International or foreign students are students who migrate to another country to pursue their studies and complete all or a portion of their postsecondary education there.

Each nation has its unique national educational system, which affects how "foreign students" and "international students" are defined.

If foreign students comprise exactly 1/8 of the number of out-of-state undergraduates, then the number of in-state undergraduates would have to be a value that yields an integer value for the number of foreign students.

In-state undergraduates are 55% of 60% of the total, or (.55)(.6) = (.33) of the total.

If 330 is the number of in-state undergraduates, which comprise 33% of the total, then you can calculate the total number of admitted students:

(0.33) (total) = 200

⇒ total = 200/0.33

⇒ total = 200*100/33

⇒ total = 606.06

So that The number of in-state undergraduates could not be 200.

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The correct question is with graph

For 2011, if foreign students comprise exactly 1/8 of the number of out-of-state undergraduates, indicate which could not be the number of in-state undergraduates.

200

330

1320

Other Questions
What does Shakespeare accomplish by focusing so intensely on time in the first moment Macbeth and Lady Macbeth see each other after the witches prediction? Which graph represents the function f(x) = 8 1/3x? mammal a has twice the body mass of mammal b. what is the ratio of mammal a's specific brain mass to mammal b's? report your answer using two significant figures. passing on a group of customers directly to the sales team is an example of an action you can take in which step of implementing behavioral marketing and customer segmentation? ricardo is very upset; it's picture day at school and he has a little pimple on his forehead. he is sure everyone who sees him and his yearbook photo will notice. ricardo's egocentric thinking is an example of the: ike pages from a book, this sample pulls apart in thin sheets of a dark see through black layers. Due to its nature of see through dark sheets the geologist has determine this to not be a metallic material opting more for virtuous appearance. A three-year-old company has achieved excellent results through perceptive market timing and aggressive marketing. Which of the following is a reason for the company's success What are the 3 types of clauses PDF? What are the average movement of Gill per minute the first task will be to introduce yourself and let me know what your background is in music. give your name, if you play (or have played) an instrument or sing. explain why you have decided to take music appreciation online, and what two things you would like to get out of this class by the end of the course (besides a good grade). part one in the book discusses the elements of music, including musical form. find a song that you like that utilizes binary, ternary, or call and response form. make sure you indicate the song title, artist, and how the song matches one of those forms. after reading and listening to the examples in the first few chapters, you have hopefully gained a little better understanding of pitch, range, and tone with instruments and voices. describe the many varieties of musical sounds possible from the human voice. be sure to consider issues such as range, social function, historical period, and regional styles when constructing your answer. choose four musical instruments, each instrument representing one of the four families of instruments. describe the physical appearance and how sound is produced for each instrument, and what the most common use of each instrument is in music. this is an activity question. for 1/2 to 1 hour this week, you are to pay attention and write down the music you hear; watch tv for one show or pay attention to the music at the grocery store when you are there (or something similar). notice how much music is a part of everything we do. now, after you've written down what you heard, provide a detailed summary of what you found out. do you notice a pattern of aggressive music if you are watching a sporting event (even in the commercials)? is there a lot of percussion and brass, electronic sounds, or? was there any pattern at all, or just random? write about what you heard. Zadie argued the ______ position that Shakespeare could not have been the author of the plays, while Marlowe, in fact, was the writer. contrary. Which functional group contains only nonpolar covalent bonds? Without random selection, we cannot appropriately apply the laws of probability to perform inference. T/F Anthony wants to plant a garden but is worried that rabbits will eat his crop so he decides to put up a fence around his plot. one side of the garden will be adjacent to a barn which is 22 feet long. he wants to be 176 square feet explain what is meant by an agile retrospective, how it is used, and why it is important? in your response to peers, give examples of learnings that can come from retrospectives. Question 12 (4 points)A student solved the following equation using the following steps:4(2 - 3x) = x - 2(2x + 1)8 - 3x = x - 4x - 28 - 3x = -3x - 2x = 0Based on the student's work, the equation was solved .The equation solved correctly would show that it has solution(s). in a certain town in north america. the time of sunrise for any day of the year can be found using the equation where is the time in hours after midnight and is the number of the day in the year. to the nearest minute, when did the sun rise on december 25th, the 359th day of the year? a manager must make a decision on shipping. there are two shippers: a and b. both offer a two-day rate: a for $512, and b for $521. in addition, a offers a three-day rate of $462 and a nine-day rate of $407, and b offers a four-day rate of $453 and a seven-day rate of $422. annual holding costs are 36 percent of unit price. three hundred and ninety boxes are to be shipped, and each box has a price of $144. which shipping alternative would you recommend? (round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.) Given that z is a standard normal random variable, find z for each situation (to 2 decimals).a. The area between -z and z is 0.2206 .b. The area to the left of z is 0.9951 . How characteristic do snails and shellfish have in common?