Questions Asked on
September 11, 2016

Algebra 1 Foundation Concepts rewrite
1. Write an algebraic expression for the following word phrase: the quotient of r and 12. (1 point) A)r • 12 B)r + 12 C)r ÷ 12 F)r – 12 2. Write a word phrase for the algebraic expression 3x  7. (1 point) A)the difference of three times a number x

Calculus
Engr. Ramos is walking at the rate of 5m/sec along the diameter of of a circular courtyard. A light at one end of a diameter perpendicular to his path casts a shadow on the circular wall. How fast the shadow from the man to the center of the courtyard is

chemistry
What is the general form for the simplest type of acidbase reaction? A. acid + base salt + water B. acid + base base + acid C. acid + base H+ + OH D. acid + base solid + water

hcc
When you add sugar to it, your cup of coffee becomes not only sweet, also fattening. which part is wrong??

History
How did Saul rule the people of ancient Israel **** 1, He conquered neighboring Judah and Canaan. 2, He set up a religious empire modeled after the Persians 3, He unted twelve tribes under on king. 4, He wrested power from Nebuchadezzar I think the answer

statistic
A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally distributed, what percentage of sample means

Algebra
Boris is driving to Memphis. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Boris has 58 miles to his destination after 21 minutes of driving, and he has 42.6 miles to his destination

chemistry
Acetylene (C2H2) burns with oxygen it gives CO2 and H2O. Write down it's Skelten equation?

Algebra
A truck can be rented from Company A for $70 a day plus $0.40 per mile. Company B charges $30 a day plus $0.80 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Company A a better deal than

physics
A cylindrical glass is 15cm long its diameter is 7cm. what volume of milk can be poured in it without spilling

into to vet tech
What term is used to describe an association of individuals with similar interests? A. Society B. Board C. Academy D. College

college
A ceiling fan has 15 inch blades (so the radius of the circular fan is 15 inches). Suppose the fan turns at a rate of 60 revolutions per minute. (a) Find the angular speed of the fan in radians per minute. (b) Find the linear speed of the tip of a blade

chemistry
calculate number of ions of chloride in 444g of calcium chloride

profit and loss
kushal sells 10 coffee for a rupee gains 20 % how many did he buy for a rupee

Chemistry
A rectangular solid of unknown density is 6cm long, 3cm high, and 7cm wide. The mass of this solid is 250g. Calculate the density.

Mathematics
If the 8th term of an AP is 36 and the 16th term is 68. Find: a) the first term b) the common difference c) The 20th term

chemistry
What is the equilibrium expression for the change when iron(II) chloride dissolves? FeCl2(s) Fe2+(aq) + 2Cl(aq)

chemistry
Which of the following bases could you write an equilibrium expression for? A. Ba(OH)2 B. KOH C. NaOH D. NH3

math
A group of hikers buys 8 bags of mixed nuts .Each contains 3 1/2 cups of nuts.The mixed nuts are shared evenly among 12 hikers.How many cups of mixes nuts each hiker receive?Show your work or explain your answer.

Health
Basal Metabolic rate (BMR) can be affected by Age Daily Values Appetite Hunger

Strategic management
What is the vision and mission of shoprite?

logarithm functions
use the properties of logarithms to expand the expression as sum, difference or multiple of logarithms. Simplify. a.log(x^3/2) b.log base4 16a

History
The Renaissance was characterized by a. creating military alliances with China b. rising interest in Roman and Greek antiquity c. the idea that religion was the basis of existence d. broadening recognition of the insignificance of the human experience e.

Algebra
A tank is drained by two pipes.One pipe can empty the tank in 30minutes,and the can empty it in 25minutes.If the tank is 5/6 filled and both pipes are opened,in what time will the tank be emptied

chemistry
Which of the following is true about the results of a neutralization reaction? A. An acid and a base form water and salt. B. Water reacts with a base to form the hydroxide ion. C. Water reacts with an acid to form the hydronium ion. D. An acid and a base

Chemistry
How much ethylene glycol (C2H6O2, the major component of antifreeze) must be added to 1 L of water to keep it from freezing at 17 oC? Kf = 1.86 oC/m. I got 163.96 or 164 for my answer but that isn't correct and I don't know what I'm doing wrong.

Chem
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) and KCl(aq).

chemistry
During a chemical reaction, if Q = K, what can be said about the reaction? A. The reaction still proceeds in both directions, but the net result is that the reactant and product concentrations do not change. B. The amount of product is always equal to the

chemistry
Acetic acid is known to be a weak acid. What will happen to the acidity of the solution when sodium acetate is added to acetic acid? A. The solution will become more acidic. B. The pH will remain the same. C. The solution will become less acidic. D. The

chemistry
A, B, C, and D are 4 salts whose Ksp values are 9.21 × 108, 7.44 × 1011, 1.07 × 1021, and 38.65, respectively. What is the correct arrangement of their solubilities in decreasing order? A. D, A, B, C B. C, B, A, D C. A, B, D, C D. C, B, D, A

Precalculus
The width of a rectangle is 8 less than twice its length. If the area of the rectangle is 172 cm^2, what is the length of the diagonal?

4th grade math
Write two 5digit addends whose sum would give an estimate of 60,000

PHYSIC
A BODY MOVING WITH A UNIFORM ACCELERATION. IT TRAVELS 84M IN FIRST 6 SEC AND TRAVEL 180M IN 5 SEC FIND ITS INITIAL VELOCITY AND ACCELERETION

Math
Sam ranks movies on a scale of 1100. If he adds 2 points to each movie in his collection, and the range of the ranking was 54, what is the range when the 2 points are added ?

Statistics
Free Throw Freddie is an 80% free throw shooter. At the end of practice he shoots until he makes 10 shots. a) What is the probability that Freddie makes 10 in a row? b) What is the probability that Freddie needs 15 or more attempts? I understand how to do

differential equation
Search Results A tank contains 100L of water. A solution with a salt concentration of 0.8kg/L is added at a rate of 7L/min. The solution is kept thoroughly mixed and is drained from the tank at a rate of 5L/min. Answer the following questions. 1. If y(t)

hcc
The physician started to perform the operation but the patient was not yet completely under anesthesia. which part of sentence is wrong?

Chem 205
A solution of ammonia and water contains 3.50×1025 water molecules and 9.00×1024 ammonia molecules. How many total hydrogen atoms are in this solution? Any help would be appreciated, thank you!

Maths
After spending 4/9 of her money, she had rs45 left how much did she spend?

elm and sanat
“You can’t tell a book by it’s cover” is an old adage. I guess the cover is wrong. am I right?

physics
the velocity of a body moving with uniform acceleration is 10m/s at a particular instant. its velocity after 5 sec is 20m/s. what was the velocity of the body 3 sec before that instant?

algera
A cash register contains only ten dollar and fifty dollar bills. It contains three times as many ten dollar bills as fifty dollar bills and the total amount of money in the cash register is $2,080. How many ten dollar bills are in the cash register?

Math
If Mary ate two apples and Bob ate three apples, how many apples did Mary eat.

Math
The wingspan of a Boeing 747400 is 64.4 metres. a. If a scale model is built to the scale 1:20, what would the wingspan of the model be in centimetres? b. If the wingspan of another model is 53 cm, find the scale of the model in the form 1:x.

Chemistry
When a 0.326 g sample of FeCl2·xH2O is heated to remove all water, a mass of 0.254 g remains. Determine the value of x.

English
Posted by rfvv on Friday, September 9, 2016 at 5:56pm. Oh, Susanna, Oh don't you cry for me For I come from Alabama With my banjo on my knee  What is the meaning of the sentences? 1. Don't cry for me, because I've come

Math
A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model

physic
Somehow two students managed to open two windows at the library. Student A is 17 m above the ground and Student B is 23.5 m above the ground. At the same time that Student A drops a ball, Student B throws a ball straight down at an initial speed of 7.36

Math
A ship leaves port and sails at a bearing of 124degrees. Another ship leaves the same port at the same time sailing at a bearing of 74degrees. When both ships are 80 miles from the port, how far are they from each other?

maths
maz=10x+6y sub to constraints =12x+4y=40

Algebra
Payments Balance 0. 14,000 1. 13,600 2. 13,200 3. 12,800 4. 12,400 5. 12,000 6. 11,600 based on the tabel, develop a linear equatiom for the amount of the car loan balance,B (in dollars) as a function of the number of monthly payments,P. B=

a
−4( 2x + y ) − ( 4x + y ) 4z+4u4x+y 8x3y

algebra
−4( 2x + y ) − ( 4x + y ) 4z+4u4x+y 8x3y My answer is this correct

College Algebra
In 1977, a math professor bought her condominium for $60,000. The value of the condo has risen steadily so that in 2007 real estate agents tell her the condo is now worth $750,000. Find a formula to represent these facts about the value of the condo V (t),

math
Determine the area of the square ABCD with AB=3rd

math
What is the quotient and remainder of 4x^32x^2+x+1 divided by x+2?

Math
In one school, 5/6 of the sixth graders take a foreign language. Of these students 2/5 take French. What fraction of the sixth graders take French. Answer: 5/6 x 2/5=25/30 + 12/30=37/30=1 7/30 Can you please double check my answer to see if I got it right.

algebra
What is the quotient and remainder of 4x^32x^2+x+1 divided by x+2?

English
What are the subject verb and object of this sentence. Paralegal must have good ethics.

Math
Jack has baseball practice every third and swimming practice every second day. During a month that has 30 days how many days will jack have both practices. I am a little stuck on this one. Can you point me in the right direction?

Math
If P^2+q^2 = 25 and 2 pq=10. What is the value of (pq) ^2?

physics
A soccer ball is kicked with an initial horizontal velocity of 16 m/s and an initial vertical velocity of 17 m/s. 3) What is the maximum height the ball goes above the ground? 4) How far from where it was kicked will the ball land?

physics
A soccer ball is kicked with an initial horizontal velocity of 16 m/s and an initial vertical velocity of 17 m/s. 1) What is the initial speed of the ball? 2) What is the initial angle θθ of the ball with respect to the ground? 3) What is the maximum

Math
George has a goal of walking 9/2 kilometers today. Each time he walks to school and back, he walks a total of 1/2 kilometers. What is the meaning of 9/2 divided by 1/2? a. The speed in kilometers per hour that George needs to walk in order to reach his

algebra
What is the quotient and remainder of 4x^32x^2+x+1 divided by x+2?

Spanish 2
1. Which of the following is correct? a) Maria estaba cocinando cuando ella se cortaba. b) Maria estaba cocinando cuando ella se corto. c) Maria estuvo cocinando cuando ella se cortaba. d) Maria estuvo cocinando cuando ella se corto. 2. Which of the

Science
Estimate the velocity of the groundwater flowing from a point 500 feet from a creek. The point is 50 feet above the surface of the creek and the permeability of the subsurface is approximately 10.5. Approximately how long would it take the groundwater to

Math Domains
I need help with finding out the domain of f(x)= sqrt(x(x2)). I keep getting the wrong answer. Please help me out and explain.

Algebra
The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs

Algebra
Sapphire Island is open 7 days a week. The park has 8 ticket booths, and each booth has a ticket seller from 10 am to 5 pm. On average ticket sellers work 30 hours per week The park plans to hire 20 percent more than the minimum number of ticket sellers in

Chemistry
Calculate the mass and moles of iodine that reacted in the formation of 2.7132 grams of ZnI2. im slighty confused about the use of iodine, would it be diatomic in the equation for example would i use the conversion 1 mol ZnI2 = 1 mol I2 or 1 mol ZnI2 = 2

Science
How resistivty of conductor vary if area is halved,length is double,area is double

Math Solving problem
In an egg and spoon race, children must transport eggs from one end of a course to the other. Points are awarded for each successfully transported, and points are deducted for each egg which drops and breaks. Jenny transported 5 eggs and dropped 2 eggs for

Geometry
Two spheres of copper, of radii is 1centimeter and 2centimeter respectively, are melted into a cylinder of radius 1centimeter. Find the altitude of the cylinder.

Math
2+3[6(19)

Geometry
Find the area of the largest square that can be cut from a circle whose radius 4 millimeter?

math
write down the general term of the following pattern 1 1 2 4= 1 + 3 x 1 3 7= 1 + 3 x 2 4 10= 1 + 3 x 1 ... n _________

Math
2+3{6(19]=? I got 14. I just need you to check if its right

Math
Mask put 130trading cards in protector sheet he fills 7 sheet and put the remaining 4 cards and 8 sheets each of the sheets has the same number of cards how many cards are in each filled sheet

chemistry
At 1 atm, how much energy is required to heat 51.0 g of H2O(s) at –16.0 °C to H2O(g) at 125.0 °C?

Physics  URGENT
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 ✕ 105 Pa and the pipe radius is 2.50 cm. At the higher point located at y = 2.50 m, the pressure is 1.21 ✕ 105 Pa and the

Mathematics
Find the compound interest on â‚¹12800 for 1 year at 15/2% per annum compounded semi annually.

maths
csc x  cot x = root of 2 cot x then proof that csc x + cot x = root of 2 csc x

Physics
A body is projected with an initial velocity 300m\s at an angle 60 with the vertical;determine :1.the velocity at the maximum height 2.The maximum height reached

hcc
The bottle of tablets has an expired expiration date. which part is wrong???

hcc
which part is wrong? When a person finds itself in stressful situation, it helps to breath deeply.

maths
a pavilion has a roof shaped like a right hexagonal pyramid with a height of 1.9m the sides of the base are 3,5 m long. what is the area of the roof maths gr 11

maths
csc x  cot x = root of 2 cot x then proof that csc x + cot x = root of 2 csc x

Math College
The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs

physics
What is the magnitude of tension on each cord 18 degrees 4.75 kg

accounting
Five characteristics of financial statement

Math
Figure (N) 1 2 3 Number of Coin (C) 4 7 10 Find Formula

Math
pattern Sort sticks Long sticks number (n) (S) (L) 1 4 2 2 7 4 3 10 6 find formula

English
I want to make sentences about Donald Trump using the following words: counterfeit, kindle, remuneration, and talisman. I am no way bashing him. This is just for an English assignment.

Health
Why is it important to recognize hinger versus appetite? If you eat too many calories you will lose too much weight. You should only eat as many calories as your body needs/ Hunger makes you eat based on emotions not nutrition. Your appetite tells you when

Trig
A ship leaves port and sails at a bearing of 124degrees. Another ship leaves the same port, at the same time, sailing at a bearing of 74degrees. When both ships are 80 miles from the port, how far are they from each other?

Math
an oak tree casts a shadow that is 5 meters long. at the same time, a 6.2metertall flagpole casts a shadow 4 meters long. how tall is the tree?

science
the drawing of three particle far away from any other particle located in a straight line .masses of these particles are Ma=363kg,Mb=517kg,Mc=154kg.find the magnitude and the direction of net gravitational force acting on them

Math Trigonometry
Two forces act on a point. One force is 35 newtons. The other is 22 newtons. The angle between the two forces is 52degrees. Find the magnitude of the resultant force in newtons.

math
The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs

math 101
how much liquid containing 6% boric acid should be mixed with quarts of liqud that is 15% boric acid in order to obtain a solution that is 12% boric acid?

Exponential Inequalities
2/5^(5x1) >orequal 25/4

Chemistry
An enzyme has velocities of 0.11 nmol/min at a substrate concentration of 1 μM, 0.34 nmol/min at a substrate concentration of 5 μM, and 0.45 nmol/min at a substrate concentration of 10 μM. What is the Vmax for the enzyme if the KM is 5 × 10–6 M? A.

Chemistry
After you preform your experiment, you determine that the Kf value for naphthalene is 6.89 °C/m . You are using 10g of naphthalene and added 1.0 g of your unknown. The the freezing point of the solvent decreased by 4.42 °C when the unknown was added.

maths
15625 mcube find its sides

Chemistry
home / study / science / chemistry / questions and answers / a subtilisin with an active site mutation of his ... Question: A subtilisin with an active site mutation of His t... EDIT QUESTION A subtilisin with an active site mutation of His to Ala had a

physics
You are driving your car along a country road at a speed of 21.5 m/s. As you come over the crest of a hill, you notice a farm tractor 35.7 m ahead of you on the road, moving in the same direction as you at a speed of 10.0 m/s. You immediately slam on your

Math
Suppose you have a coin that lands on Heads with probability 0.6 There are three coin flips defined as X. Heads count 1 and tails count 0 – e.g., if three heads then X= 3; if a head and two tails then X = 1; if three tails the X = 0. What is the expected

chemistry
Okay so i have this titration question and I don't really know the steps because everyone explains it differently. IF someone could explain me the steps of how i could solve this questions and other like this. Thanks In three runs of titration 22.8mL,

Math Trigonometry
A ship leaves port and sails at a bearing of 124degrees. Another ship leaves the same port at the same time sailing at a bearing of 74degrees. When both ships are 80 miles from the port, how far are they from each other?

Math
Of the set [ 5,5,3,8], which two numbers have the same absolute value? Explain.

Homework
I will call you when I will get back from visiting my sister. will/get back/visiting find a incorrect answer? will is incorrect here?

Science
What the force of attraction between earth and objects on earth surface pesanteur..I need it English

Math
You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average daily increase of $0.30. The next10 days, it has an average daily decrease of $0.45. The last 10 days, it has an average daily

Social Studies
Why did the Founding Fathers choose to adopt a Constitution? To give states rights within a nation To give individual right within their states To outline the powers of a new federal government  To limit the powers of the existing federal government

Math
A classmate writes a rate for Exercise 1 to express the degrees rotated in 2 minutes. Explain her error and give the correct rate. 1.25÷2/5÷2= 0.625÷2.5

English
What is the meaning behind the poem "you are reading this too fast" by ken norris?

algebra
5digit palidrone 6   5 multiple of 9

Maths
Kyle works out that the HCF of the two numbers is: 2squared x 3squared=36 What two numbers might Kyle have been using?

Math
[ ]+[ ]+[ ]=30 Fill the boxes using this (1,3,5,7,9,11,13,15) Note: you can also repeat the number twice

Math
Of the set [ 5,5,3,8], which two numbers have the same absolute value? Explain.

Math
You decide you will buy a stock only if it shows an overall increase over the next 30 days. The first 10 days, it has an average daily increase of $0.30. The next10 days, it has an average daily decrease of $0.45. The last 10 days, it has an average daily

algebra
5 digit palindrone has 5 in ones place and 6 in thousands and mutiple of 9

english essay
life in 22nd century

Physics
A photographer in a helicopter ascending vertically at a constant rate of 1.3 m/s accidentally drops a camera out the window when the helicopter is 40.0 m above the ground. How long will it take the camera to reach the ground? Which equation should I use?

Calculus
The function f relates state variables f:Q↦S according to a power function f(x)=Axp. For each state, give the corresponding equation involving the parameters A and p. (Q,S)=(6,11) implies ____=_____ (Q,S)=(5,19) implies ______=_____

Algebra
(1 pt) The function f relates state variables f:S↦Q according to an exponential function f(x)=Abx. For each state, give the corresponding equation involving the parameters A and b. (S,Q)=(−3,30) implies ______=______ (S,Q)=(1,13) implies

Math
1. What is one period of the function f(x) = 120 sin(120πx). 2. When does f(x) = 25 − x − sin(x) cross the xaxis?

Math
I have a bag with 2 different kinds of objects: 17 cubes, 19 spheres. If I randomly pick from the bag 5 of these objects without return any of it, what is the probability of getting at least 1 of each kind?

Chemistry
Sodium + Sulfuric Acid and Phosphoric Acid + Magnesium Hydroxide a.write the formula b. supply the product c.type of reaction d. balancing

home economics
what are the branches of fibre

Biochemistry
How would you make 100 mL of a carbonic acid buffer at 0.5 M and pH = 6.0 using 1.0 M NaHCO3 and either 1.0 M NaOH or 1.0 M HCl and water? so far, I have 50 mL NaHCO3. I plugged that into the HendersonHasselbalch equation of pH=pKa + log [A]/HA] and

Chemistry
When 1.5 grams of salt are added to 12.0 grams of water and the salt dissolves, what is the mass of the system?

Physics
A speeder passes a parked police car at 30 m/s and continues on, obliviously maintaining a constant velocity. At that instant, the police car starts from rest with a uniform acceleration of 2.44 m/s2. a) How much time passes before the officer catches up

Physics
A car with an initial velocity of 8 m/s experiences a constant acceleration for 3 sec, after which the velocity is 17 m/s. a) What was the acceleration? b) How far did the car travel during that time interval? What would the equations be for each of these

Physics: Conversions
Naval Question: MIDN Rabbit recently completed the NAVY PFA last Friday. During the course of CRUSHING the run and setting a new PR of 7:55, he/she performed a total of 1.1 million ftIbf of work. 1). Convert 1.1 million ftIbf of work to BTUs 2). Assume

Math
Tell whether the sum between the two integers is always, sometimes, or never positive. Two Positive Integers: Sometimes One Positive and one negative integer: Always Is it right?

math
figure (N) 1 , 2 , 3 Number of Square (S) 2 , 7 , 12 What is the formula?

Math
General term of 2x1, 3x+1, 4x+3, 5x+5

chemistry
What happens to the following reaction at equilibrium if the pressure is decreased? 2H2(g) + O2(g) 2H2O(g) A. The equilibrium shifts left because Q < K. B. The equilibrium shifts right because Q < K. C. The equilibrium shifts right because Q > K. D. The

English
Why should you help old people across the street?

math
mother had $240 more than father at first .after mother spent $260 on a dress father had twice as much money as mother .find the amount of money mother had at first ?

Math
How many 2's must be multiplied together for the product to be a number between 100 and 200?

chemistry
Which equation would describe the following equilibrium constant? Kc = [Bi3+]2[S2]3 A. Bi2S3(s) + 6HCl(aq) 2BiCl3(aq) + 3H2S(aq) B. Bi2S3(s) 3Bi2+(aq) + 2S3(aq) C. BiS(s) Bi3+(aq) + S2(aq) D. Bi2S3(s) 2Bi3+(aq) + 3S2(aq)

chemistry
Which of the following is true of the solubility product constant? A. It is the product of the initial concentrations of the ions in a solution. B. It is an equilibrium constant. C. It is an equilibrium position. D. Its value changes in the presence of a

maths
the centre of a circle is (2x1,3x+1). find the x if the circle is passes thuthe centre of a circle is (2x1,3x+1). find the x if the circle is passes through (3, 1) and the length of its diameter is 20 units.gh (ro3, 1) and the length of its diameter

math
the digit at the tens place of a 3 digit number is 4 more than the digit at its once place

math
name the property that justifies each step 2(3x4)=8x11

Chhem
What determines how long it takes salt water to evaporate

english
Need to find the subject and verb and object in 2. We made too many wrong mistakes.

arizona
The producers for giving injection were explained thoroughly to the student nurses phase. producers/were/thoroughly/student which section is wrong? tnxx

Math
9. Find two numbers whose difference is 20 and one third of their sum is 40.

Texas woman school
what part of sentence is wrong? The most important things in my life are making money, traveling abroad, and to live well. The most the mostinareto live I think are.

History
Pilgrims ship

ALGEBRA
Alewuya needs to mix a 20% acid solution with a 40% acid solution to create 100 millileters of a 24% solution. How many millileters of each solution must Alewuya use?

English
1. He is a my friend. (X) 2. He is a friend of mine.(O) (Does 'mine' refers to 'my friends'?) 3. Look at my that book. (X) 4. Look at that book of mine. (o) (Does 'mine' refer to 'my books'? 5. They are some my books. 6. They are some books of mine. 7.

English
1. You can take every my book. 2. You can take every book of mine. 3. You can take all my books. (Which ones are correct? Are they all the same in meaning?)

Chem
How does H20 become the Product? Is it a special rule or something? MG(OH)2 + HCl = MGCl2 + H2O Thanks.

Math
5 1/6 in the form of as a/b where a and b are integers

math
3a+2b+5a

math
The width of a rectangle is 8 less than twice its length. If the area of the rectangle is 172 cm^2, what is the length of the diagonal?

Math
A roller Coaster begins at 90 ft above ground level. Then it descends 105 ft. find the height of the coaster after the first descendent