Questions Asked on
January 4, 2017

Maths
X is partly constant and partly varies as y . when y =2,x=15 and y =4, x=27 (a) find the formula which connects x and y (b) find x when y=7

electrochemistry gr 12
Will there be a reaction is a magnesium strip is placed in a solution containing Ca2+ ions?

physics
A small tiny nail may Pierce an inflated Tyre and remain there without pressure reduction.explain

math
p=14.63⋅0.8 Atmospheric pressure, measured in pounds per square inch p, s, i is the force exerted by Earth's atmosphere over a given area. The atmospheric pressure, p, exerted on an airplane flying at an altitude of a miles above sea level can be

Statistics
A twodigit number is written down at random.Find the probability that the number will be A)Smaller than 20 B)Even C)Multiple of 5

managerial Economics
YellO YewBoats, Ltd. produces a popular brand of pointy birds called Blue Meanies. Consider the demand and supply equations for Blue Meanies: QD, x = 150  2Px + 0.001I + 1.5Py QS,x = 60 + 4Px  2.5W Where Qx = monthly perfamily consumption of Blue

accounting
This table is used to calculate annual commissions and salaries for car salespeople. What would the total yearly earnings of a sales assistant be who has $90,000 in sales? Commission & Salaries Sales AssistantBase Salary$10,000 Sales PersonBase

Algebra (math)
The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the xaxis and yaxis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 4x + 1 How much

Health
According to MyPlate, which two food groups should you consume in the largest amounts? (1 point) fruits and grains grains and protein protein and vegetables vegetables and grains 2. Which food group is the only group that does not contain foods that

Social Studies
Why did Korea and Japan choose a policy of isolationism? * a.They were following Chinese policies toward foreigners. b.They thought that foreign goods were of inferior quality. c.They felt that foreigners threatened their independence. d.They were occupied

History
3.How did Spanish colonies differ from French and English colonies? a.Missionaries sought to convert Native Americans to Christianity b.Peninsulares and creoles banned the slave trade, calling it immoral. c.The encomienda system subjected native peoples to

Percentage
A flatscreen TV costs $1,400. The TV is on sale for 35% off. What's the discount price?

Math
Which of the tables represents a function? Table A Input Output 3 1 3 4 2 3 Table B Input Output 2 7 5 6 2 9 Table C Input Output 1 5 7 2 7 3 Table D Input Output 3 4 1 5 8 5

Government
1. Read this excerpt from the textbook about state legislators. " The rate of turnover and legislative seats is fairly high although it tends to vary from state to state and time to time. In a given year some 20% of all lawmakers around the country are

Math , check my answer ?
Lynne invested $35,000 into an account earning 4% annual interest compounded quarterly. She makes no other deposits into the account and does not withdraw any money. What is the balance of Lynne's account in 5 years? $37,153.21 $39,438.88 $42,706.65

History
Which adjective best describes Ming China’s position toward European trade? a.diplomatic b.equivalent c.inviting d.restrictive

Social Studies
1.How did the Portuguese use geographic factors to help them control the spice trade? * a.They conquered inland kingdoms, which they turned into a trading empire. b.They used force and diplomacy to set up coastal trading posts and seize key ports around

Maths
The area of rectangle  shaped field is 0.5 ha .if one side is 12.5m ,find other in meters

Science
Cutting down trees for  can increase soil erosion. It fill in the blank. four grade science I do not know it.

US History
Which region of this map was ceded by France to the United States? North Northeast *** South and southeast West The picture shows West Florida in the middle, the Gulf of Mexico below it, part of some other states near the sides and top.

Math integers
Explain the meaning on 0 : a decrease of 250 attendees

Chem
Find the empirical formula of a compound found to contain 63.15 percent carbon 5.30 percent hydrogen and 31.55 percent oxygen I got C27H27O

math
1.Of the students in Rosalie’s dance class, 29 out of 59 have participated in dance class before. About how many of her students have participated in dance class before? (1 point) 0 1/2 (My answer) 1 2 For questions 3–5, use the recipe below. Punch

Pre Calc
The annual sales of Crimson Pharmacy are expected to be given by S = 2.4 + 0.3t million dollars t years from now, whereas the annual sales of Cambridge Pharmacy are expected to be given by S = 1.1 + 0.7t million dollars t years from now. When will

pre Calc
Assume the number of U.S. dialup Internet households stood at 38.5 million at the beginning of 2004 and was projected to decline at the rate of 3.5 million households per year for the next 9 years. (a) Find a linear function f giving the projected U.S.

am I right ? or no?
Which equations represent exponential growth? Which equations represent exponential decay? Drag the choices into the boxes to complete the table. Exponential Growth: y=4000(1.0825)^t ,y=12,000(0.72)^t , y=8000(0.97)^t , Exponential Decay: y=1700(1.25)^t ,

pre calc
write the equation in the slopeintercept form 8x − 3y + 6 = 0

Maths
A rectangular field is to be fenced on three sides, leaving a side of 20m uncovered. If the area is 680m2 ,find length of fencing (in m) needed

Calculus
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +4.2 N and the mass

Math
Find the average rate of change in height of the orange from t=2 to t=5 (in feet per second) The equation is h (t)=605+15t4.9t^2 in feet. I know the the average rate of change is change in q/ change in time. Do I put t=3 and subtract the quantity of 5 and

chemistry
What would be made if hydrogen sulphide gas was bubbled through a solution of zinc nitrate

chemistry
Write an equation for the reaction that take place in hydrogen sulphide gas when bubbled through a solution of zinc nitrate

math
if A+B+C=π prove that sin(B+2C)+sin(C+2A)+sin(A+2B)=4sin(BC)/2 sin(CA)/2 sin(AB)/2

physics
A man holds a child on shoulders while watching a football match. How much work has he done if the game last for 2 hours

Pre calc
Find an equation of the line that has slope m and yintercept b. (Let x be the independent variable and y be the dependent variable.) m = − 3/2 ; b = 3/4

Science
During an experiment on a sunny day,students pour water on the sidewalk.Every 30 minutes ,they check the water to record any changes.After 1 hour, they observe that all the water is gone.What happens to the water?

math
find the 7th term of the geometric progression if the first and 5th terms are 16 and 9 respectively.

Math
The temperature at 5 am was 28 degrees F. The temperature at 2pm was 17 degreesf. If the temperature changed at a constant rate from 5am to 2pm what was the temperature at 6am?

Math
James spends $10 on supplies for a lemonade stand and sells $30 worth of lemonade What was his profit?

Maths
Please could someone help or complete an unusual calculation for me. I need to solve a triangle where all the angles are known and 2 of the sides. 2 of the sides are identical and 2 of the angles are identical. One angle is one sixtieth of one degree. The

4th Grade Math
Ben is helping plant tulips. He plants bulbs in two rows and has one bulb left over. So he tries again. He plants bulbs in three rows and has one bulb left over. So he tries again. He plants bulbs in four rows and has one bulb left over. So he tries again.

Global Politics
Reposting question because I think I messed up! ____________________________________________ What are some issues that Russia is dealing with right now, and how can they be potentially solved? What are some good things that happened?

English
I wish I (was, were) ready to go shopping at the mall. were***

English
Pick three themes from Lord of the Flies and write a PEE paragraph about each. I have chosen savagery, youth and power/order as my themes. I know to write stuff about the conch and the chief for power/order but I don't know hat else to write for the rest.

Maths
The numerator of a fraction is 7 less than the denominator. If the numerator is increased by 2 and the denominator by 9,we again get the same fraction. Find the fraction.

Maths
If a wire is bent into a square ,it's ara is 49cm2. If it is bent into a semi circle , what will be its radius

mATH
Crystal buy headphones that are on sale with a 40% discount. If she paid $24 for the headphones with the discount, what is the full price of the headphones?

Algebra
I am totally stuck on this question, can some one help? Come up with and describe two scenarios: one that models a direct variation situation and one that models an inverse variation situation. Do not state explicitly which scenario is which, but provide

algebra
The sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times the large.

Science
4th Grade Most processes change land slowly, but people can change the land What the answer

THANK YOU DAMON
u have been a great help thanks 100% more helpful than anyone i have met today

math
Lisa is thinking about two positive integers. The larger integer is seven less than twice the smaller integer. The larger integer is also three more than the smaller integer. What is the larger of the two integers that Lisa is thinking about? ~So the

Science
During an experimento a sunny Day,stu dental pour water on the sidewalk.every 30 minutes,they check the water to record antes changes.after 1 hour,they observe that all the water is gone. What happens to the water?

Algebra
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on.Write the numbers for the first eight beads that are white.What is the rule for the pattern

Algebra 2
I'm stuck could anyone explain or tell me what to do please? The number of trucks registered in a city each year increases by 10% each year. Initially there were 100 trucks registered. Write a function T(r) that represents the number of trucks registered

Pre calc
Find an equation of the line that passes through the given points. (Let x be the independent variable and y be the dependent variable.) (3, 13) and (4, 20)

math  calculus help!
An inverted conical tank (with vertex down) is 14 feet across the top and 24 feet deep. If water is flowing in at a rate of 12 ft3/min, find the rate of change of the depth of the water when the water is 10 feet deep. 0.229 ft/min 0.449 ft/min 0.669 ft/min

4 th grade science
Cutting down trees for  can increase soil erosion. can some one help me please with this. fill in the blank.

Trig
Given: sin x = 4/5, 0 < x < π/2 sin y = 5/13, π/2 < y < π Find the exact value of sin(x + y) I presume I'm supposed to use the sum and difference formulas but I'm not sure how to get the exactly value of cos x or cos y

precalc
Success in business depends on many factors. Buying habits of consumers, trends in fashion and taste, seasonal trends, the strength of the competition, and the condition of the national and international economies all affect the fortunes of a business. The

Math
darry and nay eat dinner at a restaurant with 6% sales tax. They leave an 18% tip on the pre tax amount of the bill. If they paid a total of 37.20, what was their pre tax bill?

Math
explain why 9997 is not a prime using euclidean algorithm

Number Theory
Find the solution to 4X + 7 =2 (mod15)

Math
What does 5 yards 2 feet 3 inches plus 2 yards 2 feet 9 inches equal?

Social Studies
4.What was the encomienda system? A. a system in which Spanish monarchs shared with Native Americans the right to demand labor from peons and Africans B. a system in which the Spanish conquistadors granted Native Americans the right to demand labor from

pre Calc
Find an equation of the vertical line that passes through (x, y) = (−3, 4).

Maths
Last year Tom spent 20% of his money on clothes, the rest he spent on food, utilities, socializing and savings in the ratio 2 : 7 : 3 : 4. If Tom spent £2500 on food, how much did he spend on everything else and how much does he earn in total?

math
Jack has 5 more apples than Jill. Jill has 3 apples. How many apples in total do they have?

Math
Two of the vertices of a rectangle are 1,6 and8,6 the rectangle has a perimeter of 26 units, what are the coordinates of the other two vertices

Math
I am trying to figure out how to do a sun and finding the product or quotient and writing the strategy that I use. I'M IN GRADE 4 NOT SURE HOW TO DO IT

literary
when considering a business venture , you should consider factors such as your financial resources, your special skills, where you live and what you like to do with your time

math
How is 1/7 reasonable in the Jordan is making a necklace

mathematics
To what value does the sum 20+12+36/5 tend as n.I really don't have any idea.

Math
How do i find X when my teacher tells me circling the letter x is not how you find it?

Math
the points A,B,C,D,and E are evenly spaced, what is the point of A and C on the number line __(a)___(b)2.83_____c___d___(e)1.64

Math
For what real values of c is x^2 + 16x + c the square of a binomial? If you find more than one, then list your values separated by commas. Need help...

Math
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 46.6 m/s in a time of 6.82 s. The mass of the car and riders is 6.72 × 103 kg. Find the average net force exerted on the car and

mathematics
Solve the equation: 4x squared24=16x,4x12(12raise to the power of x)+32=0

chem 11
Chloroform, CHCl3, has a boiling point of 62 oC, whereas methane, CH4, has a much lower boiling point of 164 oC. Using diagrams, explain the difference between the two boiling points.

Edit/Revise
Both the USB flash drive and the DVD are data storage devices, but they both have numerous differences. Both can contain insane amounts of data and add to our storage making it even easier to store your photos, videos, and many more types of files.

Mathematical reasoning
If the rain does not come, then the crops are ruined and the people will starve. The crops are not ruined or the people will not starve. Therefore, the rain comes. i. Identify the premises and the conclusion. ii. Use appropriate symbols to represent the

Physics
Draw a block and tackle system of pulleys with a velocity ratio of 5.A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distanceof 40cm at a steady rate. If the efforts is equal to 60N, determine a)d distance

Find B when
3= 50/6 + b do you times 3/1 by 6 getting 18/6 in the end then do you add 50/6 getting 68/6????

Math;);)
Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin 54].

American Government
Please check my answers 1. Which of the following make up the structure of nearly all county governments? (I need to choose 4 answers) A. Appointed bureaucrats B. Boards or commissions C. A county judge D. Elected officials E. A governing body F. A justice

Science
For a 5 kg rocket and a thrust time of 5 s, what thrust makes the rocket reach a height of 871 m?

English
One way an English sonnet is different from a Petrarchan sonnet because an English sonnet contains A couplet < A sestet Give quatrains None of the above

Science
A craane lifts an 8000N height 75m to the top of a buildings in 30s. How much power does the crane use?

quantitative analysis for decision making
. A food industry produces chips at three factories, located in Birmingham, Glasgow and London. Since the customer should be supplied with fresh products, these are not stored in the factories. The monthly production ability of the factory in London is 750

algebra
P +4 2 (p10)> 0 Please check, it was marked wrong P+4 2p +20 > 0 p+ 24> 0 p >24 P > 24 Answer choices are 29, 26, 24, 22 Please explain thank you

Math
What constant must we place in the question markbelow in order to be able to factor the resulting expression into the product of two linear factors: 2mn  16m  7n + ?

Math!!!
Let z=8+15i and w=68i. Compute zz/ww (each of the second ones, z and w, have a bar over them) where the bar represents the complex conjugate.

Math
A lawn care company charges a homeowner $1625 a year to maintain the lawn that is 65' x 50' what is the maintenance fee per square foot

Math
How many 4digit numbers can be formed using the numbers 4, 5, 6 and 7? How many of the 4digit numbers are less than 7000?

Ross
Hello, can anyone give me some help with these excersises? 1. Give an example of a linear transformation that is injective but not surjective 2. Give an example of a linear transformation which kernel is not only the indentity element (Ov) I really don't

science
When an object moves on a circular path what is a work done?specify the reason

science
establisHey relationship between si unit and commercial unit of energy

science
one mole of an ideal gas is allowed to expand isothermally at 29.3 degree celsius from a volume of 4.0 litres and pressure of 5.0 atm to a volume of 10.0l and pressure of 2.0atm

Maths
If the volume of a cylindrical block is equal to 800cm^3 prove that the total surface area is equal to 2(pi)x^2 + (1600)/x, where x cm is the radius of the base. hence obtain the value x which makes the surface area a minimum.

Maths
Prove that all the altitudes of rhombus are congruent

profit&loss mathematics
A sells to B at a gain of 20%,B sells to C at a price A paid.what does B lose as a percentage? Plz show step with neat algebras i tried working it out i become angry with the question

Math
If five bags of mulch covers 32 square feet, how many square feet could 16 bags cover?

Pre Calc
If the line passing through the points (a, 1) and (2, 8) is parallel to the line passing through the points (12, 6) and (a + 2, 1), what is the value of a?

Math
⅓x(15x12y) ½(6x4y)

maths
the width of a rectangle is increased by one tenth, but the area remains the same. by what fraction has the length of the rectangle been reduced?

Math
I have a 76 average in the class. We have one more test, and tests are weighted at 60%. What grade do I need to get to an 80?

math
if 5 people want to share a 2 pound sack of potato chips equally by weight, how many pounds of potato chips should each person get?

maths
What is the smallest number that can be written using three different digits, which has the millions period as its last period?

Math
Martin has a vegetable garen that is 8 feet long and 5 feet wide. Next years he want to increase both the length and width of the garden by 15%. What will the dimensions of the garden be next year? Length __________ feet Width_____________ feet

Maths
23 is subtracted from 4 times of a number the result is equal to the 1/3 of 54 ?Find the number

chemistry grade 11
ferrous sulfate was prepared by dissolution of x grams p feso4.7H20 crystals in 500 ml water. 20 ml of this solution necessities 5 ml of 0.1mol/l kmn04 for the pink color to persist. find x

History
I Got the others right but i need help with these.> 1.Why did the Portuguese think that they could find an easier way to reach Asia? * a.They had alliances with European nations to send out expeditions. b.They had a large country and a long tradition

Algebra
23 is subtracted from 4 times of a number the result is equal to 1/3 of 54.Find the number?

Math
Write an equation in slope intercept form for the line described Through (1,4) parallel to x+3y=5

Math
Graph the function below F(x)={2/3x x

Math
I bought three times as many erasers as pens and spent $155 in total. I spent $65 more on the pens than the erasers. Given that 's pen cost $1.90 more than an eraser, find the cost of a pen.

social studies
If I were in Antarctica during the winter will it be warmer in summer

Physics
3. What happens to the speed of ocean waves as they come close to shore? How can this be explained from what you've learned so far? (this the teacher means what do the lessons have to do with this question) 4. Sound travels faster through wood than through

College Physics
An airplane has a mass of 3.19 × 104 kg and takes off under the influence of a constant net force of 1.56 × 104 N. What is the net force that acts on the plane's 82.1kg pilot?

science
write the represtation of a nitrogen atom with mass number 14 and atomic number 7

Math
Calvin height at the end of 2015 was 4 feet 2 inches. At the end of 2016, Calvin is now 4 feet 5 inches tall. By what percent did calvins height increase from 2015 to 2016?

Math
A(1,1) B(1,5), C(3,1) are the vertices of triangle ABC. if M is the midpoint of BC, find BM

Math
A boat has a mass of 5680 kg. Its engines generate a drive force of 3380 N due west, while the wind exerts a force of 990 N due east and the water exerts a resistive force of 1310 N due east. Take west to be the positive direction. What is the boat's

Math
onethird of lexie's age is 4 years more than onefifth of this age. lexie's sister is five years younger than her. how old is lexie's sister?

accounting
Assume ABC merchandize company purchase merchandize and 680000 on April 2016. A) Record the journal entry. B) Assume ABC purchase on account ( credit) and record the journal entry. C) Assume that the company purchase in terms of n/30 and record the journal

electrochemistry gr 12
Using the following spontaneous reactions, classify the 3 metals involved (Cr, Sn, Al) according to increasing reductant properties. a) 2Cr + 3Sn2+ > 2Cr3+ + 3Sn b) Al + Cr3+ > Al3+ + Cr

math
The cost of fencing a square field at rupees 1.60per meter is rupees 3200. Find the cost of reaping the field at rupees1.20per 100sq . meter

History
1.Why did the Portuguese think that they could find an easier way to reach Asia? * a.They had alliances with European nations to send out expeditions. b.They had a large country and a long tradition of Asian exploration. c.They had a large fleet and had

language arts
anyone who read the watsons please help!!!!!!!!!!!!!! 1. Which of the following passages from the novel best describes the setting? A.It was one of those superdupercold Saturdays B.One of those days that when you breathed out your breath kind of

Math
Write an equation in slope intercept form for the line describe Through (5,6), perpendicular to x= 2 I got x= 5 which i got wrong

Math
If Harrison games for 2hrs every weekday, and 4hrs every weekend, how many hours does he play in two weeks if he went camping with no electricity for 3 days starting Sunday. A: 84 B: 88 C: 90 D:96 E: none of these Ps please reword or explain the question

Math
Graph the given functions below X Y f(x)={3 0 < eqaul to x< 2 f(x)={2 2< equal to x < 4 f(x)={1 4 < equal to x < 6

Math
A salad dressing is 25% vinegar.Sue wants to make 2 cups of dressing.How much vinegar does she need?

American Government
Why do presidents prefer federal judges who tend to agree with their views?

Global Politics
What are some issues that Russia is dealing with right now, and how can they be potentially solved? What are some good things that happened in 2016?