(11-8)x3+7+27-3
(18÷3)+6+(14-8)x5
(11-7)x6+4+32-4

Answers

Answer 1

The results of the arithmetic evaluations as given in the task content are; 40,42 and 62.

What are the results of the arithmetic evaluations?

The arithmetic operations above can be evaluated and simplified as follows;

(11-8)x3+7+27-3 = (3×3)+7+27-3 = 40.

(18÷3)+6+(14-8)x5 = (6)+6+(6)x5 = 42.

(11-7)x6+4+32-4 = (5×6) +4 +32-4 = 62.

Read more on arithmetic evaluations;

https://brainly.com/question/4694189

#SPJ1


Related Questions

Simplify
[tex](2x - 3) - (x - 4)[/tex]
Factorize
[tex]16 - 4 {x}^{2} [/tex]

Answers

Answer + Explanation:

#1 Simplification:

(2x - 3) - (x - 4)

2x - 3 - x + 4

2x - x - 3 + 4

x + 1

#2 Factorization:

16 - 4x²

-4x² + 16

-4(x² - 4)

-4(x² - 2²)

-4(x + 2)(x - 2)

X^2 + y^2 = 81 write down the equations of the two horizontal lines that are tangent to c

Answers

Answer:

Step-by-step explanation:

x² + y² = 81

x + y = √81

x + y = 9

x ≥ 9

y ≤ 9

find the equation of the arithmetic sequence in which t(5)=40 and t(10)=70.

Answers

The equation of the arithmetic sequence in which  t(5)=40 and t(10)=70 is tₙ = 10 + 6n

How to find the equation of an arithmetic sequence?

The equation of an arithmetic sequence can be represented as follows;

tₙ = a + (n  -1)d

where

a = first termd = common differencen = number of terms

Hence,

70 = a + 9d

40 = a  + 4d

30 = 5d

d = 30 / 5

d = 6

Therefore,

40 = a + 4(6)

40 - 24 = a

a = 16

Hence, the equation is as follows:

tₙ = 16 + (n - 1)6

tₙ = 16 + 6n - 6

tₙ = 16 - 6 + 6n

tₙ = 10 + 6n

learn more on arithmetic sequence here: https://brainly.com/question/18269451

#SPJ1

11. Find the amount of interest on $600, if a bank is paying 5.5% interest.
[A] $30 [B] $3.30
[C] $330
[D] $33
[E] $23

Answers

B) 3.30 Since 600/100= 6 x 5.5= 3.30
B 3.30 is the answer

The base of the Hawaiian mountain Mauna Kea is about 5,853 meters below sea level. Its summit is 4,205 meters above sea level. What is the total height of Mauna Kea? The base of the Hawaiian mountain Mauna Kea is about 5,853 meters below sea level . Its summit is 4,205 meters above sea level . What is the total height of Mauna Kea ?​

Answers

Answer:

100,58 meters

Step-by-step explanation:

You add 5,853 plus 4,205 to get 100,58 Meters. You add the number below and above sea water tog et the total height of the mountain.

Answer:

Mouna Kea is 10,058 meters high

Step-by-step explanation:

in order to calculate the whole height of the Mouna Kea you will need to add the base to the summit.

5,853 +4,205 = 10,058

Iliana cubed the number of flowering plants in her garden, then added 2 vegetable plants. Let p represent the original number of plants in her garden. Which shows an expression to represent the total number of plants in her garden and the total number of plants if p = 3?
3 p minus 2; when p = 3 the number of plants is 7
3 p + 2; when p = 3 the number of plants is 11
p cubed minus 2; when p = 3 the number of plants is 25
p cubed + 2; when p = 3 the number of plants is 29

Answers

The correct answer is option D which is p ³+ 2; when p = 3 the number of plants is 29.

The complete question is given below:-

liana cubed the number of flowering plants in her garden, then added 2 vegetable plants. Let p represent the original number of plants in her garden. Which shows an expression to represent the total number of plants in her garden and the total number of plants if p = 3? 3 p minus 2; when p = 3 the number of plants is 7 3 p + 2; when p = 3 the number of plants is 11 p cubed minus 2; when p = 3 the number of plants is 25 p cubed + 2; when p = 3 the number of plants is 29

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The given expression is liana cubed the number of flowering plants in her garden, then added 2 vegetable plants.

If she cubed the number of the plants will be:-

Now she added two vegetable plants:- 2

Then the equation will be:- p³ + 2. Now we will put the value of p = 3 in the equation.

Total number of the plants = ( 3 )³ + 2 = 27 + 2 = 29

Therefore the correct answer is option D which is p³+ 2; when p = 3 the number of plants is 29.

To know more about Expression follow

https://brainly.com/question/723406

#SPJ1

Elaine saw statistics showing that union employees make an average of 30 percent more than nonunion workers, so when she was looking for a new job, she looked for one at a company that was unionized. Elaine was motivated by

Answers

Elaine saw statistics showing that union employees make an average of 30 percent more than nonunion workers, so when she was looking for a new job, she looked for one at a company that was unionized. Elaine was motivated by Economic needs.

What do we mean by economic needs?

By economic need Elaine is trying to get a company that would pay her more. Hence the need to go for the Unionized company.

This is given that the Unionized company is said to earn more than the other company. Hence her motivation is due to her economic needs.

Read more on economic needs here:

https://brainly.com/question/17889008

#SPJ1

Write a system of equations that could be used to solve the situation described below.

You find 12 coins under the couch. Every coin is either a nickel or a penny, and they add up to a total of 32 cents. How many of each type of coin do you have? Let x represent the number of pennies and y represent the number of nickels.

Please select the best answer from the choices provided

A. x+y=12
0.05x+0.01y=0.32

B. x+y=0.32
0.01x+0.05y=12

C. x+y=12
0.01x+0.05y=0.32

D. not enough information

Answers

If there are 12 coins under the couch and every coin is either a nickel or a penny and together they are forming 32 cents then the equations which represent the problem will be x+y=12, 0.01x+0.05y=0.32. The correct option is B which is x+y=12, 0.01x+0.05y=0.32.

Given There are 12 coins and total money is 32 cents.

Let the number of pennies be x and the number of  nickels be y.

According to question there are 12 coins so the first equation becomes:

x+y=12.

Then we have been told that together they amount to 32 cents.

We know that 1 penny is 1 cent coin and 1 nickel is 5 cent coin so the equation becomes :

1*x+5*x=32

x+5y=32

converting into dollar

0.01x+0.05y=0.32.

Hence the right equations showing the problem of nickel and pennies are x+y=12, 0.01x+0.05y=0.32.

Learn more about equations here https://brainly.com/question/2972832

#SPJ10

Perpendicular segments are best described as being which of the following?
A. Segments that intersect
B. Segments that are coplanar
C. Segments that will never intersect
D. Segments that intersect at a right angle

Answers

Answer:

D

Step-by-step explanation:

Perpendicular lines intersect at a 90° angle.

Answer:

D. Segments that intersect at a right angle

Step-by-step explanation:

BD is the bisector of angle ABC Determine the measure of angle ABD

Answers

Answer:

45 degrees

Step-by-step explanation:

A bisector divides an angle into two equal parts. Since we are dividing a 90 degree angle by 2, we get a resulting value of 45 degrees.

Solve the equation for x.
√x-5 = x-11

Answers

Your answer would be 14

Answer:

√x-5 = x-11 = 9.

Step-by-step explanation:

Isolate the radical, then raise each side of the equation to the power of its index.

x = 9 Solve the equation for x.

Write the algebraic expression for the following statement.

The sum of a number and 3 is 14.

Answers

Answer:

the algebraic expression is; x+3=14

What is the transformation of C(9, 3) when dilated with a scale factor of 1/3,
using the point (3, 6) as the center of dilation

Answers

The transformation of C(9, 3) when dilated with a scale factor of 1/3, using the point (3, 6) as the center of dilation would be an option B: C'(3,1).

What is Dilation transformation?

A dilation transformation is a transformation that changes the size of the original figure but the shape remains unchanged.

If any figure is dilated by a scale factor k with the center of dilation as the origin.

Then the change of transformation in each of the vertices of the figure is given:

(x,y) → (kx, ky)

It is given a point C which is located at C(9,3).

Hence, here k=3

We get:

C(9,3) → C'(9×3,3×3)

C(9,3) → C'(27,9) = C'(3,1)

Hence, the transformation of C(9, 3) when dilated with a scale factor of 1/3, using the point (3, 6) as the center of dilation would be an option B: C'(3,1).

Learn more about dilation;

https://brainly.com/question/6639345

#SPJ1

Answer:

(5,5)

Step-by-step explanation:

count from the center

which equation matches this graph?​

Answers

The first function represents the graph of a function provided in the picture option first is correct.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a graph of a function shown in the picture.

[tex]\rm f\left(x\right)\ =\ -\sqrt{\left(x-3\right)}\ +\ 2[/tex]

x - 3 ≥ 0

x ≥ 3

Plug x = 3

f(x) = 2

Thus, the first function represents the graph of a function provided in the picture option first is correct.

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

a decimal, and t is the time in years.
1) Emily has $50 in a savings account. The interest rate is 5% per year and is not compounded.
How much will she have in 1 year?

Answers

Answer:

52.50$

Given:

⇒ Emily has 50% in a savings account currently.

⇒ Interest rate is 5% per year and is not compounded

To find:

⇒ How much she will have in 1 year

__

steps

⇒ [tex]5\text{percent} \times50[/tex]

⇒ [tex]=\frac{5}{100} \times50[/tex]

⇒ [tex]=\frac{100}{(5\times50)}[/tex]

⇒ [tex]= \frac{250}{100}[/tex]

⇒ [tex]=2.5[/tex]

Now that we have calculated her interest rate per year, we must calculate that added onto her balance in her account before the interest was applied.

⇒ [tex]2.5+50\[/tex]

⇒ [tex]52.50\[/tex]

Therefore, Emily will have 52 dollars and 50 cents in a year.

She will save $52.5 per year.

What are the measures of Angles a, b, and c? Show your work and explain your answers.
70°

Answers

we can’t see the angles……

explain this please thanks.

Answers

Answer:

Step-by-step explanation:

Two possible patters of sitting:

⇒ [tex]I) M W M W M W[/tex]

⇒ [tex]II) W M W M W M[/tex]

⇒ Three ways can be used to seat each set of three people, for a total of six.

⇒ There are two groups

2 × 3 = 6 (ways in six groups.)

*The two options can be distributed in two groups.

⇒ Total methods are equal to 6 * 6 * 2 = 72 ways.

Which of the following statements are true?
I. Each white blood cell contains millions of hemoglobin molecules.
II. In a sample of blood, there are more red blood cells than white blood cells.
III. HIV destroys red blood cells.
IV. All blood cells come from one pool of stem cells.

Answers

The correct answer is option B that is Each white blood cell contains millions of haemoglobin molecules. All blood cells come from one pool of stem cells.

The complete question is given below:-

Which of the following statements are true?

I. Each white blood cell contains millions of haemoglobin molecules.

II. In a sample of blood, there are more red blood cells than white blood cells.

III. HIV destroys red blood cells.

IV. All blood cells come from one pool of stem cells.

A. II and IV only

B. I and IV only

C. II and III only

D. I, III, and IV only

E. I, II, and IV only

What are blood cells?

The most prevalent form of blood cell and the main source of oxygen for the bodily tissues of vertebrates, red blood cells are also known as red cells, red blood corpuscles, haematids, erythroid cells, or erythrocytes. They circulate through the blood through the circulatory system.

Therefore the correct answer is option B that is Each white blood cell contains millions of haemoglobin molecules. All blood cells come from one pool of stem cells.

To know more about blood cells follow

https://brainly.com/question/907662

#SPJ1

A 10 ft slide will be installed on a playground. The top of the slide will be 8 ft above the ground.

What angle does the slide make with the ground?

Enter your answer in the box. Round your final answer to the nearest degree.

Answers

Answer

12

Step-by-step explanation:

Which expression is the simplest form of - (4x³ + x²) + 2 (x³ - 3x²)?
OA.-223-5x²
B. -6x³6x²
OC.-6x³2x²
OD. -2x³-7x²
SUBMIT

Answers

Distribute what is outside the parenthesis first (-&2) to get

-4x^3-x^2+2x^3-6x^2

Then combine like terms to get

-2x^3-7x^2

So your answer is D.


Hope this helped :)

Answer:

-2x³ - 7x².

Step-by-step explanation:

- (4x³ + x²) + 2(x³ - 3x²)

= - 4x³ - x² + 2x³ - 6x²    Simplifying like terms:

= -2x³ - 7x².

i need quick help on this, please

Answers

The coordinates of a point located on the grid is (64.65, 12.4).

We need to find the coordinates of the point given on the grid.

What are coordinates?

In geometry, a coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

Now, from the given grid we can see that the point is located at (64.65, 12.4)

Therefore, the coordinates of a point located on the grid is (64.65, 12.4).

To learn more about coordinates visit:

https://brainly.com/question/15300200.

#SPJ1

A food production company is choosing between two suppliers of grain. Supplier A sells grain for $5.25 per bushel plus a
delivery fee of $3 per bushel. Supplier B sells B the grain for $6.50 per bushel plus a flat delivery fee of $1,500 each week.
Which supplier would cost more if the production company bought 500 bushels of grain each week?
O Supplier B would cost $625 more than supplier A.
© Supplier B would cost $600 more than supplier A
O Supplier A would cost $875 more than supplier B.
© Supplier A would cost $800 more than supplier B.

Answers

Subtraction is a mathematical operation that reflects the removal of things from a collection. Supplier B would cost $625 more than supplier A. Thus, the correct option is A.

What is subtraction?

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

The cost of 500 bushels from supplier A will be,

Cost = ($5.25 × 500) + ($3 × 500)

        = $4,125

The cost 500 bushes from supplier B will be,

Cost = $1,500 + ($6.250×500)

        = $4,750

Now, the difference between the two suppliers' costs for 500 bushels will be,

Difference = $4,625 - $4,125 = $500

Hence, Supplier B would cost $625 more than supplier A. Thus, the correct option is A.

Learn more about Subtraction:

https://brainly.com/question/1927340

#SPJ1

Mara found the length of time of an investment. The principal of the investment was $4,300, the interest rate was 6.2 percent, and the interest was $2,666. Mara made an error in her work.

I = p r t. 2666 = (4300) (0.062) t. 2666 = (266.6) t. StartFraction 266.6 over 2666 EndFraction = t. 0.1 = t.

What was Mara’s error?
Mara did not substitute the values from the problem into the formula correctly.
Mara did not multiply correctly.
Mara did not divide correctly.
Mara divided when she should have multiplied.

Answers

The error that Maria made is that she did not divide correctly.

What error did Maria make?

The simple interest that is paid on an amount of money is a function of the amount deposited, time and interest rate.

Simple interest = principal x time x interest rate

2666 = 4300 x 0.062 x t

2666 = 266.60t

t = 2666 /  266.60

t = 10 years

To learn more about simple interest, please check: brainly.com/question/27328409

#SPJ1

Quick please!!! Buford, the farm hand, is preparing feed for
the animals. He wants to mix the contents of a
bag containing 50% corn with one containing
90% corn to optain a 30-pound bag containing
80% corn. How many pounds of the 50% bag
should he use? (write your answer as a
decimal.)

Answers

Buford should use 7.5 pounds of the 50% corn bag.

How do we solve a system of linear equations from word problems?

A system of linear equation is an equation containing two different equations with variables and the coefficient.

From the given information, let:

The weight of the bag containing 50% corn be = xThe weight of the bag containing 90% corn be = y

Sp, we can a system of a linear equation that says:

x + y = 30

0.5x + 0.9y = 0.8(30)

Using elimination method

x + y = 30

-

x - 1.8y = -48

0 - 0.8y = -18

y = 18/0.8

y = 22.5

From x + y = 30

x = 30 - 22.5

x = 7.5

Therefore, we can conclude that he should use 7.5 pounds of the 50% corn bag.

Learn more about the system of the linear equations here:

https://brainly.com/question/2226590

#SPJ1

Choose the congruence theorem that you would use to prove the triangles congruent.
AAS
SAS
ASA
SSS

Answers

Answer:

C)  ASA

Step-by-step explanation:

From  the diagram we can see:

The triangles have two congruent angles and one congruent side which is between those two angles.

It means the triangles are congruent by angle-side-angle or in short ASA theorem.

Correct answer choice is C

Simplify 10√3x +4√3x +5√3x

Answers

Add the like terms :

10√3x + 4√3x + 5√3x

(10 + 4 + 5)√3x

19√3x

The slope of the line below is 2. Use the coordinates of the labeled point to
find a point-slope equation of the line.
• (3,10)
) A. y+ 10 = 2(x+ 3)
B. y - 10 = -2(x- 3)
D C. y + 10 = -2(x+3)
D. y - 10 = 2(x - 3)

Answers

Answer:

y - 10 = 2(x - 3)

Explanation:

Equation:

y - y₁ = m(x - x₁)

Here given:

coordinates: (x, y) = (3, 10)

x₁ = 3y₁ = 10slope (m) = 2

Inserting value's:

y - 10 = 2(x - 3)  in point slope form

y = 2x - 6 + 10

y = 2x + 4  in slope-intercept form

Answer:

d) y - 10 = 2(x - 3)

Step-by-step explanation:

Given: a line with a slope of 2, and the point (3, 10)

Point-Slope Form: y - y₁ = m(x - x₁)

where: m is the slope, and (x₁, y₁) is a given point

Substitute the values into the form:

⇒ y - y₁ = m(x - x₁)

⇒ y - 10 = 2(x - 3)

Learn more here:

brainly.com/question/27971495

2.865; cut it to the ten thousandths

Answers

Answer:

2.865.

Step-by-step explanation:

first get to know the place value of each digit is you move on you will realise that there's no digit for tens of thousands that means that you can add a zero which which will be counted as tens of thousands and since it's not past 5 it can't change the other number. I mean it can't add 1 to 5 so the number remains 2.865 good day.

Convert each rate using dimensional analysis. Round to the nearest tenth, if necessary.

45 mi/h = ___ ft/s

Answers

The 45 mi/h is equal to the 2640 ft/min.

To convert 30 miles per hour to feet per minute, we use dimensional analysis in the process.

We have given that, rate using dimensional analysis.

What is the 1 hour?

1 hour = 60 minutes.

1 mile is equal to 5280 feet and 1 hour is equal to 60 minutes.

Hence the formula of conversion is 30 miles / hour *(5280 ft/ mile) * (1 hour / 60 min).

The answer is 2640 ft/min.

To learn more about the rating visit:

https://brainly.com/question/119866

#SPJ1

Identify the equation with an x-intercept of 3 and a y-intercept of -2.

Answers

The equation of line is 2x  - 3y = 6.

What is intercept?

The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.

The x-intercept is 3 and the y-intercept is -2.

So, the line passes through the points  (3, 0) and (0, -2)

Now, slope of line is

m= -2-0/ 0-3 = 2/3

Equation of line is

y = 2/3 x - 2

y = 2x-6 /3

3y= 2x -6

2x  - 3y = 6

Learn more about intercept here:

https://brainly.com/question/14180189

#SPJ1

Other Questions
1) (b + a) = 4; use a = 1 and b = 3 2) c(b + b); use b = 1 and c = 5 3) 4+ pm; use m = 4 and p =3 4) 5+ pm; use m = 4 and p = 2 5) m(p + 2); use m = 5 and p = 2 6) h+j; use h = 1 and j = 4 7) y-(x - 5); use x = 5 and y = 6 8) 4xy; use x = 5 and y = 2 9) n(p + 3); use n = 2 and p = 2 10) y +x+x; use x = 3 and y = 5 11) 6+ a-b; use a = 4 and b = 4 The phrase I suppose helps Roosevelt create which kind of tone Determine the linear function for a graph that is a line with a slope of 1/7 and contains the point (4, 1). Help me show your work In your own words:a. Describe at least three factors that contributed to the Industrial Revolution.b. Explain how these factors were important. INSTRUCTIONS: Determine the truthfulness of the material viewed by explaining what makes it true or false. Explain each in 2 to 3 sentences. (10 POINTS)1-2._______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3.-4._______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________5-6._______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7-8._______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________9-10.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 1. How did Bolvar's advice combine practical suggestions with idealistic principles? 2. To what extent does Bolvar believe the revolt to have been triggered by Spain's refusal to live up to its own best principles? 3. Are there any biases or logical fallacies one needs to be aware of when analyzing this primary source? Did you note any biases or fallacies in your own, initial approach? Explain. What is the range of the function y=-x +1?A) y -1B) y-1C) y 1D) y 1 Somebody help me with this question please thank you Read this excerpt of Walter's words to Mama from A Raisin in the Sun:You run our lives like you want to. It was your money andyou did what you wanted with it. So what you need for meto say it was all right for? (Bitterly, to hurt her as deeply ashe knows possible) So you butchered up a dream of mine-you-who always talking 'bout your children's dreams...What does this excerpt most reveal about Walter?A. That he is confident he will come up with money for his businessB. That he is grateful for the way his parents raised himC. That he feels like a failure as a manD. That he respects Mama and her choices A car is purchased for 28,000 after each year, the resale value decreased by 25% what will be the resale value be after 3 years? Study the editorial cartoon by Sign Wilkinson.Copyright by Signe WilkinWILL WORKforAIR CONDITIONING!23Which details best support the purpose of this editorialcartoon? Select three options.the pattern of the woman's outfitthe "will work for air conditioning" signthe rat sweating on the sidewalkthe city buildings and sidewalkthe comfortable man in the air-conditioned car How can you best avoid nutrient deficiencies?A. Avoid colorful foods.B. Avoid home-cooked meals in favor of restaurant food.C. Eat a variety of fresh foods within each food group.D. Eat a variety of snacks and desserts. Escoge la respuesta correcta.Qu hace el tortugario de Monterrico para conservar las tortugas?A) Atrapan a las tortugas.B) Protegen los nidos de las tortugas.C) Comen y venden huevos de tortugas.D) Sacan fotos de las tortugas. Select the correct answer. A linear function on a coordinate plane passes through (minus 3, 2), (0, 4), and (3, 6) Which equation describes the line graphed above? A. B. C. D. What is the range of the given function?{(-2, 0), (-4,-3), (2, -9), (0, 5), (-5, 7)}O {x|x=-5, -4, -2, 0, 2}Oy | y=-9, -3, 0, 5, 7}{x|x = -9, -5, -4, 3,2, 0, 2, 5, 7}{y | y=-9, -5, -4, -3, -2, 0, 2, 5, 7} If you were to compare the consistency of the mantle to a type of food, what would best describe it? please helpCarefully reread the text you have chosen, and look for 50100 words that stand out in the prose passage. Highlight or underline details, words, and phrases that you find powerful, moving, or interesting.2. On another sheet of paper, make a list of the details, words and phrases you underlined, keeping them in the order that you found them. Skip a line between the words so that they are easy to work with.3. Look back over your list and cut out everything that is dull, or unnecessary, or that just doesnt seem right for the poem. Try to cut your original list in half, so that you have 2550 words.4. Make any minor changes necessary to create your poem. You can change punctuation and make little changes to the words to make them fit together (such as change the tenses, possessives, plurals, and capitalizations).5. When youre close to an edited-down version, if you absolutely need to add a word or two to make the poem flow more smoothly, to make sense, or to make a point, you may add up to two words of your own. Thats two (2) and only two!6. Read back over your edited draft one more time and make any deletions or minor changes.7. Check your words, and choose a title is there a better title than Found Poem?8. Copy the words and phrases into your journal or type them in a word processing program. Space or arrange the words so that they are poem - like. Pay attention to line breaks, layout, and other elements that will emphasize important words or significant ideas in the poem. Which excerpt from The Odyssey best shows Odysseus demonstrating the epic hero traits of strength andLeadership? A geographer would most likely use acities.O A. thematic mapB. physical mapOC. political mapOD. global mapto study a location's countries and