Simplify (√2)(3/2) N/A 2 23 26 26 Look at the picture Its Better
PLEASE HELP​

Simplify (2)(3/2) N/A 2 23 26 26 Look At The Picture Its Better PLEASE HELP

Answers

Answer 1

Answer:

C

Step-by-step explanation:

(√2) can be interpreted as 2^(1/2) and the second term can be interpreted as 2^(1/3). The law of exponents tells us that we must add the exponents when multiplying two numbers with the same base. 1/2 + 1/3 is 3/6+2/6 = 5/6 so the final answer would be 2^(5/6)


Related Questions

The curvature of a circle is inversely proportional to its radius. What is the exact circumference of a circle with one-third the curvature of a circle of radius 1?

Answers

The circumference of a circle with one-third the curvature of a circle of radius 1 is 18.85 units

What is circumference ?

The perimeter of a circle is known as its circumference. It is the length of the circle's whole perimeter. The diameter of a circle and the constant are multiplied to get the circumference of the circle. This measurement of a circle's circumference is necessary for someone to cross a circular park or for a circle-shaped table to have a border. The units of the circumference are the same as the units of length and it is a linear value.

If a circle has a radius of 1,

the curvature is inversely proportional to this

So, the curvature= 1

A circle with a curvature of 1/3 :

radius=3

Thus, the circumference of the circle  =  2 *π * radius

                                                               =  2*π * 3

                                                               =  6π

                                                               ≈ 18.85 units

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.Ansel wants to borrow $10,000 from the Hampton County Bank. They offered him a 6-year loan with an APR of 6.35 %. How much will he pay in interest over the life of the loan ?

Answers

Ansel has to pay an interest of $167.4 per months for the the life of the loan to the Hampton County Bank.

Explain the term APR?That yearly interest amount you'll spend if you have a balance off your credit card is referred to as the annual percentage rate (APR). Some credit cards feature variable APRs, which means that over time, your rate may go up or down. Your annual percentage rate, which is determined by the particulars of your loan and includes the interest rate as well as additional costs like borrower and mortgages broker fees, is often greater than your interest rate.

The formula for the monthly installments are-

M = P(r/12)(1 + r)∧12t / (1 + r)∧12t - 1

Put the values;

Principal P =$10,000.

Rate of interest r = 6.35%

Time t = 6 years 72 months

M =  10,000(0.0635/12)(1 + 0.0635)∧72 / (1 + 0.0635)∧72 - 1

M = $167.4

Thus, Ansel has to pay an interest of $167.4 per month for the the life of the loan to Hampton County Bank.

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What is the probability that a point chosen at random in the triangle is also in the blue square?

Answers

Answer:

[tex]\dfrac{1}{3}[/tex]

Step-by-step explanation:

Divide the area of the square by the area of the triangle.

[tex]\dfrac{A_{\textrm{square}}}{A_{\textrm{triangle}}} = \dfrac{3^2}{(9\times 6)\div 2}[/tex]

And simplify.

[tex]= \dfrac{9}{54 \div 2}[/tex]

[tex]= \dfrac{9}{27}[/tex]

[tex]=\dfrac{1}{3}[/tex]

A coordinator will select 7 songs from a list of 11 songs to compose an event's musical entertainment lineup. How many different lineups are possible?

Answers

Answer:

Step-by-step explanation:

= 604800

selling price of car if rs 50,000 , profit is 10% and cost price of car will be ?

Answers

Answer:

Rs 45,000

Step-by-step explanation:

The profit is the difference between the selling price and the cost price of the car. In this case, the profit is 10% of the selling price, or 10% * Rs 50,000 = Rs 5,000.

Therefore, the cost price of the car is the selling price minus the profit, or Rs 50,000 - Rs 5,000 = Rs 45,000. This is the amount that the seller paid for the car, before adding the profit.

What is the rate of change of the function?
Enter your answer as a number, like this: 42

Answers

Answer:

-2

Step-by-step explanation:

1. Identify two points with integer (not fraction or decimal) coordinates:

  Ex: (0,5) and (3,-1)

2. subtract the y-coordinates: -1-5 = -6

   and the x- coordinates (IN THE SAME ORDER): 3-0 = 3

3. divide the difference in y (-6) by the difference in x (3): -6/3 = -2

Solve the system of quadratic equations, explain each step if possible:

Answers

The solutions to the system of equations formed by the linear equation 9 · x + 9 · y - 79 = 0 and the quadratic equation x² + 5 · x - y - 4 = 0 are (x₁, y₁) = (5 / 3, 64 / 9) and (x₂, y₂) = (- 23 / 3, 148 / 9).

How to solve a system of equations

Herein we find a system of equations formed by a linear equation and a quadratic equation. This system must be resolved by means of algebra properties. First, write the system of equations:

9 · x + 9 · y - 79 = 0

x² + 5 · x - y - 4 = 0

Second, clear the variable y in the first equation:

9 · x + 9 · y - 79 = 0

9 · y = 79 - 9 · x

y = 79 / 9 - x

Third, substitute y on the second equation:

x² + 5 · x - (79 / 9 - x) - 4 = 0

x² + 6 · x - 115 / 9 = 0

Fourth, use the quadratic equation to find the solutions of x:

x₁ = 5 / 3, x₂ = - 23 / 3

Fifth, calculate the solutions of y:

y₁ = 79 / 9 - x₁

y₁ = 64 / 9

y₂ = 79 / 9 - x₂

y₂ = 148 / 9

The solutions are (x₁, y₁) = (5 / 3, 64 / 9) and (x₂, y₂) = (- 23 / 3, 148 / 9).

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A bicyclist travels the first 800 m of a trip 1.4 minutes, the next 500 m in 1.6 minutes, and finishes up the final 1200 m in 2 minutes.

What is the total distance traveled on the bicycle?
______ meters

What is the total time the bike traveled?
_______ minutes

Find the average speed (in meters/min) of the bicyclist for this trip. _______ meters

Answers

The total distance traveled on the bicycle is 2500m

The total time the bike traveled is 19.4 minutes.

The average speed (in meters/min) of the bicyclist for this trip is 128.9 m/minutes.

What is speed?

Speed is the rate at which an object's location changes in a particular direction. The distance traveled on relation changes to a particular direction. The distance in relation to the time it took to travel the distance is the speed.

The total distance traveled on the bicycle will be:

= 800 + 500 + 1200

= 2500m

The total time the bike traveled will be:

= 1.4 + 16 + 2

= 19.4 minutes

Speed = Distance / Time

= 2500 / 19.4

= 128.9 meters per minute

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Can someone solve this please? Where to put the points

Answers

Answer:

(40, 100) (x,y) Also, In the image below

Step-by-step explanation:

I used this website to do this. It is a very accurate website I used it all the time in algebra. So it should be right

I hope this helps!!!

Please mark Brainliest :)

Solve the equation without using a calculator

[tex]\bf\\x^{x^2-2x+1}=2x+1[/tex]

Answers

The value of the variable x in the equation xˣ²⁻²ˣ⁺¹ = 2x + 1 is  1 + √2

Exponential Equations

An equation is a mathematical statement that shows that two mathematical expressions are equal.

An equation combines two expressions connected by an equal sign. These two expressions on either side of the equals sign are called the “left-hand side” and “right-hand side” of the equation. We generally assume the right-hand side of an equation is zero.

Basically, an equation is a statement that equate or says two expressions are equal to one another.

The problem given may be assumed as an exponential equation

xˣ²⁻²ˣ⁺¹ = 2x + 1

Solving for x by isolating the variable;

x = 1 + √2

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Answer:

  x = 1 ±√2

Step-by-step explanation:

You want to solve the exponential equation ...

  x^(x² -2x +1) = 2x +1

without using a calculator.

Guess

There are no algebraic methods for solving such an equation.

We can solve quadratic equations, so we can guess that the exponent of x is 2:

  x² -2x +1 = 2

  x² -2x -1 = 0

Using 2 as an exponent, the given equation becomes ...

  x² = 2x +1 . . . . . . . exponent on the left is 2

  x² -2x -1 = 0

That is, the exponent being 2 is consistent with the requirements on x.

Quadratic

The solution to the quadratic can be found using the quadratic formula:

  x² -2x -1 = 0

  x = (-(-2) ±√((-2)² -4(1)(-1))/(2(1)) = (2±2√2)/2

  x = 1±√2

Either of these values will make the exponent of x be 2, so both are solutions to the equation. The negative solution is not found by the graphing calculator (attached).

An adult harbor seal can eat food up to 6% of its body weight. If an adult harbor seal eats 18 pounds of food, how much does the adult harbor seal weigh? Use any strategy to solve.

Answers

The weight of the  adult harbor seal is 300 pounds.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given,

An adult harbor seal can eat food up to 6% of its body weight.

An adult harbor seal eats 18 pounds of food

We need to find  the adult harbor seal weigh

Let x be the weigh of food

6% of x= 18 pounds

Convert 6% to decimal

6/100=0.06

0.06x=18

Divide both sides by 0.06

x=300

Hence, the weight of the  adult harbor seal is 300 pounds.

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2x^2 – 4x + 3 = 0 Solve using the quadratic formula
Please help i tried twice im so confused, nobody has the answer.

Answers

Answer: d = -8

Step-by-step explanation: look at the attached link

Four scenarios of statistical studies are given below. Decide which study uses a sample statistic.

Answers

Based on the four scenarios of statistical studies given, a study which uses a sample statistic is: D. As part of her senior project, Kaisa asked 84 of her classmates if they voted in the last presidential election, 39 said yes.

What is a sample statistic?

In Mathematics and Statistics, a sample statistic can be defined as a small piece of statistical information that is obtained by a researcher or scientist from the sample of a population.

This ultimately implies that, a sample statistic simply refers to any numerical quantity (figure) or data that is generated from the sample of a population by a researcher or scientist.

In this context, we can reasonably infer and logically deduce that 84 of Kaisa's classmates represent the sample of the total population while the 39 classmates who answered yes represent the sample statistic.

In conclusion, the statistical study that was conducted by Kaisa is a study that represent the sample statistic.

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Complete Question:

Four scenarios of statistical studies are given below. Decide which study uses a population parameter.

The average finish time for the Ironman, Kona was 11:32 for the 1883 finishers, with an average swim time of 1:14, an average bike time time of 4:14.

Lakeside Family Dentistry reported that 6 of the 15 patients who came in for a regular cleaning one day had at least one cavity.

Of 351 dog owners who were surveyed, 70 reported owning two dogs.

As part of her senior project, Kaisa asked 84 of her classmates if they voted in the last presidential election, 39 said yes.

about how long is a real bed in real life

Answers

Answer:

All beds come in different shapes and sizes but for example a queen sized mattress is 60” x 80”

Step-by-step explanation:



(LOTS OF POINTS)
4. (Multiple Choice) In the figure shown, which of the following is the greatest?
A. a
B. b
C. c
D. d
E: e

Answers

Answer:

The answer is e

Step-by-step explanation:

Ittttttt isssss aaaaaaaaa

If cos of Ф = 2/5, find sin Ф/2 and cos Ф/2. Assume the angles are in the 1st quartile

Answers

a. The trigonometric ratio sin(Ф/2) = +√(3/10)

b. The trigonometric ratio cos(Ф/2) = +√(7/10)

What are trigonometric ratio?

Trigonometric ratios are the ratios of the sides of a right-angled triangle. They include

sinФ, cosФ, tanФ etc

where Ф is the angle between the sides

a. How to find the trigonometric ratio sin(Ф/2)?

Given that cosФ = 2/5, we use the trigonometric identity

cosФ = 1 - 2sin²(Ф/2)

Making sin(Ф/2) subject of the formula, we have

sin(Ф/2) = ±√(1 - cosФ)/2

So, susbstituting the value of cosФ = 2/5 into the equation, we have

sin(Ф/2) = ±√(1 - cosФ)/2

sin(Ф/2) = ±√(1 - 2/5)/2

sin(Ф/2) = ±√[(5 - 2)/5]/2

sin(Ф/2) = ±√(3/[5 × 2])

sin(Ф/2) = ±√(3/10)

Since Ф is in the first quartile, sin(Ф/2) = +√(3/10)

b. How to find the trigonometric ratio sin(Ф/2)?

Given that cosФ = 2/5, we use the trigonometric identity

cosФ = 2coss²(Ф/2) - 1

Making sin(Ф/2) subject of the formula, we have

coss(Ф/2) = ±√(1 + cosФ)/2

So, susbstituting the value of cosФ = 2/5 into the equation, we have

coss(Ф/2) = ±√(1 + cosФ)/2

cos(Ф/2) = ±√(1 + 2/5)/2

cos(Ф/2) = ±√[(5 + 2)/5]/2

cos(Ф/2) = ±√(7/[5 × 2])

cos(Ф/2) = ±√(7/10)

Since Ф is in the first quartile, cos(Ф/2) = +√(7/10)

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help meeeeeeeeeeeeeeee pleaseeeeeeehelp meeeeeeeeeeeeeeee pleaseeeeeeehelp meeeeeeeeeeeeeeee pleaseeeeeeehelp meeeeeeeeeeeeeeee pleaseeeeeeehelp meeeeeeeeeeeeeeee pleaseeeeeeehelp meeeeeeeeeeeeeeee pleaseeeeeee

Answers

Answer:

17.3

Step-by-step explanation:

5. Gary has walked 5 miles
already and continues
walking at a pace of 2
miles per hour. Write an
expression to represent
how many miles he has
walked.

Answers

Answer:210 miles

Step-by-step explanation:Gary walking in opposite directions will calculate how long it takes for him to be a given distance apart.

F and H are sets of real numbers defined as follows.
F = { v l v < 4}
H = { v l v ≥ 7}
Write F ∩ H and F ∩ H using interval notation. If the set is empty, write ∅.

Answers

The final interval notation is  F ∩ H = [7, 4] &  F ∪ H = [-∞, ∞].

What is the interval notation?

A set of real numbers known as an interval in mathematics contains all real numbers falling inside any two of the set's numbers. For instance, the interval containing 0, 1, and all integers in between is the set of values x satisfying 0 x 1.

We have,

F and H are sets of real numbers defined as follows.

F = { v l v < 4}

H = { v l v ≥ 7}

F is the set of all real numbers that are less than or equal to 4.  H is the set of real numbers greater than 7.

F U H is the union (or combination) of the two sets, so it is the set of all real numbers that are less than equal to 3 or greater than 6:

F ∩ H is the set of real numbers that are in both sets; but since F is less than or equal to 4 and H is greater than 7, there are no numbers that are in both sets.  Hence the answer is the empty set, Ø:

F ∩ H = Ø

F ∩ H = [7, 4]

F ∪ H = [-∞, ∞]

Hence, the final interval notation is  F ∩ H = [7, 4] &  F ∪ H = [-∞, ∞].

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what property is illustrated below

-5x + 2 =2 -5x

Answers

Distributive property

Answer:

distributive property


A rental car agency charges $160 per week plus $0.25 per mile to
rent a car. How many miles can you travel in one week for $335?

Answers

The number of miles travelled by the family in one week is 700 miles

How to determine the number of miles travelled

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

Charges per week = $160

Charges per mile = $0.25

Total charges = $335

The above parameters mean that

Total charges = Charges per week + Charges per mile x Number of miles

Substitute the known values in the above equation, so, we have the following representation

160 + 0.25 * Number of miles = 335

This gives

0.25 * Number of miles = 175

Multiply both sides by 4

Number of miles = 700

Hence, the number of miles is 700

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pythagorean theorem number search activity

Answers

Step-by-step explanation:

1). Red

x² = 98² - 44² = 9604 - 1936 = 7668

x =√7668 = 6√213

2) orange

X² = 31²+30² = 1861

x = √1861

I really need help on this!

Answers

The common ratio of given geometric sequence is r = - (1/2)

What is geometric sequence?

A geometric sequence is a set of integers that follows a pattern where each term is multiplied by a fixed number called the common ratio, or r, to find the following term.

solution:

a3 = - (3/8)

a8 = 3/256

common ratio = a3 / a8

                        = - (3/8) / 3/256

common ratio = - (1/32)

a8/a3 = (ar^7) / (ar^2)

          = r^5

r^5 = - (1/32)

    r = - (1/2)

Hence the common ratio of given geometric sequence is r = - (1/2)

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A​ town's population is 47,750 . About 100 people move out of the town each month. Each​ month,175 people on average move into town. A nearby town has a population of 50,500. It has no one moving in and an average of people moving away every month. In about how many months will the populations of the towns be​ equal? Write an equation to model the situation. Then solve the equation and answer the question.

Which equation models the​ situation?

Answers

The equation that models the given situation is; 175x - 100x + 47750 = 50500 - 200x

The number of months it will take the populations to be equal is 10 months

How to model the equation of the word problem?

Let us suppose after x months the population of both town's will be equal.

From the given directions, we have;

The population of the first town after x months is given by;

175x - 100x + 47750

The population of the second town after x months is  given by;

50500 - 200x

Now, In order to the population of the both town's to be equal, we have;

175x - 100x + 47750 = 50500 - 200x

275x = 50500 - 47750

x = 2750/275

x = 10

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What is the r2 value for the following data to three decimal places?
0.783 0.278 0.611 0.885

Answers

Answer:

0.783

Step-by-step explanation: got it right :)

What two ways could you describe the shape pattern below?
ΔΟΔΟΔΟ

Answers

Answer:

The pattern is a repeated triangle and circle.

So, the next shape would be a triangle and a circle.

Step-by-step explanation:

y = 3x + 2

y = 2x + 2

One solution
No solution
Infinite solutions

Answers

Answer:

The answer would be One solution.

Step-by-step explanation:

Solving by substitution.

y=3x+2;y=2x+2

Step: Solve y=3x+2 for y:

y=3x+2

Step: Substitute 3x+2 for y in y=2x+2:

y=2x+2

3x+2=2x+2

3x+2+−2x=2x+2+−2x(Add -2x to both sides)

x+2=2

x+2+−2=2+−2(Add -2 to both sides)

x=0

Step: Substitute 0 for x in y=3x+2:

y=3x+2

y=(3)(0)+2

y=2(Simplify both sides of the equation)

Answer:

x=0 and y=2

If it was no solution you would not be able to solve. If it was infinite then there would be infinite solutions, but there is not so One Solution is the answer.

here is the image of triangle ABC and its dilation using Center D and scale factor 2. Why is B'C' on the same line as its corresponing side segment BC​

Answers

Since only the lengths increase by scale factor,  B'C' on the same line as its corresponding side segment BC​ .

What is the Dilation?

Math definition of dilation Resizing an object is accomplished through a change called dilation. The objects can be enlarged or shrunk via dilation. A shape identical to the source image is created by this transformation. The size of the form does, however, differ.

The following are the properties of dilation of the triangle:

1)measures of the angles will not change

2)The sides  of the image of the triangle are multiplied  by the scale factor 2.

So,

A'B'=2AB

B'C'=2BC

A'C'=2AC

Since only the lengths  increase by scale factor,  B'C' on the same line as its corresponding side segment BC​ .

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sorority has 35 members, 25 of whom are full members and 10 are pledges. Two persons are selected at random from the membership list of the sorority. Find the requested probabilities The second person selected is a pledge if the first person selected was a full member.

Answers

(a) The probability that the first person selected is a pledge is; 10/35

(b) The probability that the first person selected is not a pledge is; 25/35

(c) The probability that the second person selected is a pledge if the first person selected was also a pledge is; 9/34

How to find the probability of selection?

We are given;

Total number of members in the Sorority = 35

Number of full members = 25

Number of members that are pledges = 10

Formula for probability is;

Probability = Number of Favorable Outcomes / Total Number of Outcomes.

1) Probability that the first person selected is a pledge = number of pledges/total number of members = 10/35

2) Probability that the first person selected is not a pledge = 1 - (Probability that the first person selected is a pledge)

= 1 - 10/35 = 25/35

3)  If the first person selected was also a pledge, then for the second pledge, one pledge is out, so we have 9 pledges in 34 people.

P = number of pledges / total = 9/34

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Complete question is;

A sorority has 35 members, 25 of whom are full members and 10 are pledges. Two persons are selected at random from the membership list of the sorority. Find the requested probabilities. (Enter the probabilities as fractions.)

(a) The first person selected is a pledge.

(b) The first person selected is not a pledge.

(c) The second person selected is a pledge if the first person selected was also a pledge.

PLEASE HELP ME I NEED IT ASAP!!


Given the inequality 4x ≤ 28, which of the following is a solution that makes the inequality true?

Answers

For the inequality 4x ≤ 28 the solution that makes the inequality true will be x≤7.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

It is given that the inequality is 4x ≤ 28.

Now that the equation has been simplified, we obtain both sides of the inequality equation, divide by 4, and we obtain

x ≤ 7

As a result, x must be less than or equal to 7.

The requirement for x is satisfied by any numbers that are less than or equal to 7.

Thus, for the inequality 4x ≤ 28 the solution that makes the inequality true will be x≤7.

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Answer:

a

Step-by-step explanation:

7

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the nurse is reviewing the record of a client who has just been told that a pregnancy test is positive. based on her last normal menstrual period, she is 8 weeks' gestation. appropriate physical assessments are completed. which findings are anticipated to be present at this time? select all that apply. Lola, Jacy, and Tate plan to create a company to manufacture bicycles. After reviewing the pros and cons of the various forms of business enterprises, they decide to create a limited liability company. To create a limited liability company:they must file a certificate of organization with the secretary of state and should create an operating agreement, although an operating agreement is not required.they must file a certificate of organization and an operating agreement with the secretary of state.they must file an operating agreement with the secretary of state and should create a certificate of organization, although a certificate of organization is not required.they must file a certificate of organization with the county clerk and should create an operating agreement, although an operating agreement is not required. a principle of design in which the visual weight of the forms achieves equilibrium despite being distributed unevenly throughout the picture plane is called: a large appliance rental business is considering employee benefit options. it has brought together vice-presidents from all of the functional areas of the company (such as sales, marketing, finance and operations) to discuss the options. the rental company has established a suppose investment, in addition to having an autonomous component, also has a component that varies directly with the level of real gdp. how would this affect the size of the spending multiplier? there is something about older drivers that help them stay out of collisions as well as they do. what is it point is 9 units from the center of a circle of radius 15. how many different chords of the circle contain and have integer lengths? 10 points . 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Always use full justification to take up space from side to side.C. Use images with a lot of white background.D. Use at least three different fonts. what were the most important changes ecnomic ideolgical social politcal between 1800 and 1860, that occured in. the south's defense of slavery, and elite planter lifestyle What are tasks that might be different for an elementary schoolteacher versus a high school teachers premenstrual dysphoric disorder (pmdd) is included in the dsm-5 but the name of the diagnosis has been changed from how it was listed in the dsm-iv-tr. product owner wants advice from the scrum master about estimating work in scrum. what guidance should a scrum master give calculate the moment of inertia of a thin, uniform rod of length l and mass m that rotates about a pivot at distance l/3 from one end. a virus mutates, and therefore it has which of the following traits of living things?(1 point) responses it uses energy. it uses energy. it is made of cells. it is made of cells. it evolves. it evolves. it grows and develops. consider three 1-l flasks at stp. flask a contains nh3 gas, flask b contains no2 gas, and flask c contains n2 gas. in which flask are the molecules most ideal in behavior? (1)College classrooms are often drab and dreary places. (2)Walls are painted a variation of institutional gray; furniture is easy to clean, but uncomfortable and unattractive. (3)Chairs are lined up in straight rows facing the teachers desk or lectern. (4)In one study, over 80 percent of university students rated their classrooms negatively, describing them as ugly, cramped, stuffy, and uncomfortable. (5)Research by environmental psychologists is beginning to show that unattractive classrooms are not only unappealing; they may also adversely affect academic performance.(6)A carefully controlled study of classroom environments was conducted by Wolling and Montage (1981). (7)They selected two identical classrooms located side by side in the psychology building. (8)The control classroom, which they called the sterile classroom, had white walls, a gray carpet, and rows of plastic desks. (9)The experimental classroom, which they called the friendly classroom, was redecorated with the help of a design consultant. (10)Several walls were painted bright colors, art posters were hung on the walls, large plants were added to the room, and colorful Chinese kites were hung from the ceiling. (11)In addition to traditional desks, a part of the room was outfitted with area rugs, color-coordinated cushions, and wooden cubes to provide nontraditional seating.(12)The researchers investigated how these two different environments affected performance in actual college classes. (13)Two professors teaching introductory psychology agreed to participate in the study, although they were not informed of the purpose of the research. (14)When school began, each class was randomly assigned to one of the two rooms. (15)Halfway through the term, the classes switched rooms. (16)Thus students in both classes spent half the term in the control room and half in the friendly room. (17)Students were not told they were being studied; the switch in rooms was explained as occurring because the original room was needed for videotaping.(18)The most striking finding from this study was that students performed significantly better on regular course exams when they were in the friendly rather than the sterile classroom.Question4. The students in the studya. helped design the friendly classroom.b. took two different courses.c. stayed in one room throughout the course.d. were not told they were involved in a study.