Questions Asked on
March 24, 2014

college physics
During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of 10.0 kg and the horizontal component of its velocity is 8.00 m/s when the 65.0kg performer catches it. If the performer is on
asked by Mohanad 
College Physics
The point charges in Figure 17.41 are located at the corners of an equilateral triangle 25.0 cm on a side, where qb = +12.0 µC and qc = 4.50 µC. (Assume that the +xaxis is directed to the right.) (a) Find the electric field at the location of qa.
asked by Samuel 
Trig  sum and difference formulas
Write the expression as a single trigonometric functions: cos 6x cosx  sin6x sin x if you could do it step by step? also... How do I prove that sin(90deg + theta) = cos(theta)?? also step by step so i may learn?
asked by Anonymous 
College Physics
A doubly charged ion is accelerated to an energy of 33.0 keV by the electric field between two parallel conducting plates separated by 1.70 cm. What is the electric field strength between the plates?
asked by Bill 
english
i need help with chapter 10 and 11 sentence check 2
asked by jenny 
economics, math
Could you please help me with this problem: Consider an oligopolistic market with two firms. Each of them produces using a cost function given by c(q)=q2. The aggregate demand in the market is given by 1000−p. Suppose that, in order to increase
asked by Tia 
math, economics
Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by 1/2√q+m+√G, where G denotes the total level of consumption in the market. The
asked by Nick 
World History
Could someone explain how nationalism contributed to Napoleon's defeat?
asked by Eli 
university of png
A car decelerates at 3.8m/second square without skidding when coming to a rest on a level road.what would its deceleration be if the road is inclined at 9.3degrees and the car moves uphill?(assume the same static friction coefficient and the car is on the
asked by philando 
statistics
assume that blood pressure readings are normally distributed with a mean of 111 and standard deviation of 7. A researcher wishes to select people for a study but wants to exclude the top and bottom 10 percent. What would be the upper and lower readings to
asked by jessica 
College Chem
What is the maximum amount of barium sulfate that will dissolve in 600mL of 0.02M Na2SO4? Barium sulfate ksp=1.1*10^10
asked by shel 
college chem 2
Calculate the deltaS univ for the dissolving of NaCl at room temp. S' NaCl(s)=72.11 J/k*mol; S' NaCl(aq)=115.5 J/k*mol;deltaH' NaCl(s)=411.12 kJ/mol; deltaH' NaCl(aq)=407.27 kJ/mol.
asked by shel 
college chem 2
The enthalpy of vaporization of liquid diethyl ether is 26.0kJ/mol at 35'C calculate the deltaS' for vapor to liquid
asked by shel 
mathematics
66+77=143
asked by joy lim 
Home Economics
1. Differentiate between techniques and processes. 2. Give two examples of each after differentiating.
asked by Isabella 
Home Economics
1. How can disposal of fullness be done on the sleeve head?
asked by Isabella 
Math
Mohammed had ducks and cows on his farm. These 14 animals had a total of 40 legs. How many each animals did Mohamed have?
asked by Christine 
Chemistry
How many moles of hydrochloric acid are required to react with 2.57 moles of calcium hydroxide in a neutralization reaction?
asked by Anonymous 
stats
X is normally dsitributed with mean 250 and standard deviation 40. what value of X does only top 15% exceed?
asked by Anonymous 
English
What can you do to save electricity? 1. I can unplug my computer when I go to bed. 2. I can turn off the lights when I leave my room. 3. I can unplug all the things such as the computer, the printer, the speaker, etc. 4. I can unplug the electric mat when
asked by rfvv 
English
1. All of them are useful. 2. All of them is useful. 3. All is expensive. 4. All are expensive. 5. All is silent in the room. 6. All are silent in the room.  Which ones are grammatical?
asked by rfvv 
English
1. I haven't read Harry Potter yet. 2. I don't read Harry Potter yet. 3. I didn't read Harry Potter yet.  Which expressions are not grammatical? Is #2 or #3 grammatical?
asked by rfvv 
Algebra
What is a quartic function with only the two real zeros given? x = 4 and x = 1 A. y = x^4 + 5x^3 + 5x^2 + 5x + 4 B. y = x^4  5x^3  5x^2  5x  4 C. y = x^4 + 5x^3 + 5x^2 + 5x + 4 D. y = x^4 + 5x^3 + 5x^2 + 5x  5
asked by Jacob 
chemistry
2. When preparing a NaOH solution, a student did not allow the NaOH pellets to completely dissolve before standardizing the solution with KHP. However, by the time the student reﬁlled the buret with NaOH to titrate the acetic acid, the remaining NaOH
asked by anonymous 
chemistry
Distilled water normally contains dissolved CO2. When preparing NaOH standard solutions, it is important to use CO2 free distilled water. How does dissolved CO2 in distilled water affect the accuracy of the determination of a NaOH solution’s
asked by anonymous 
econ
economics what is the law called where cost of input increases so cost of output must increase (in order to keep max profit)
asked by sara 
Chemistry
Your muscles are switched on by releasing calcium ion from the sarcoplasmic reticulum that surrounds your muscle bundles. The Ca2+ binds to a muscle ﬁber, and that triggers the contraction. To relax the muscle again, Ca2+ must be pumped out, so that the
asked by Rini 
Statistics
Twelve different video games showing substance use were observed and the duration times of game play ( in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to
asked by Angel 
math
Jayden wants to be a fast runner like his big brother, Isaac. Isaac encourages Jayden to do a “30 for 30” challenge. This would require Jayden to spend 30 minutes outside every day for 30 days doing some type of physical activity. In return, Isaac
asked by Bailey 
Math
An astronomical researcher is using software to study the parabolic path of an asteroid. By entering the equation for the path of the asteroid, the researcher could determine if the asteroid would collide with any other bodies in the near future. The
asked by Anonymous 
phisecs
.: A 5.0 kg block is moving with constant velocity down a rough incline plane. The coefficients of static and kinetic friction between the block and the incline are 0.25 and 0.20, respectively. What is the inclination angle of the incline plane?
asked by w 
physics
A car moving with an initial speed v collides with a second stationary car that is 46.0 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 37.7 percent of the original speed. Calculate the final
asked by Sami 
Math  PreCalc (12th Grade)
Which equation represents a hyperbola whose foci lie at (2, 7) and (2, 3)?
asked by Anonymous 
physics
Two pucks collide on an air hockey table. Puck A has a mass of 17.0 g and is initially traveling in the +x direction at 7.00 m/s. Puck B has a mass of 51.0 g and is initially at rest. After the pucks collide, puck A moves away at an angle of 52.0 deg above
asked by Tsion 
grammar
conjugate "They were students" in all form of tenses.
asked by fathima 
physics
A 41.0kg body is moving in the direction of the positive x axis with a speed of 306 m/s when, owing to an internal explosion, it breaks into three pieces. One part, whose mass is 8.0 kg, moves away from the point of explosion with a speed of 326 m/s along
asked by Tsion 
PRECALC
A biased coin has a 0.4 probability of landing on tails. The random variable X, based on a single toss of the coin, is defined as follows: X = 0 if heads appears; X = 1 if tails appears. What is the mean value of X? A) 0.7 B) 0.5 C) 0.4 D) 0.3 E) 0.6
asked by Anonymous 
PRECALC
At how many points is this function discontinuous? f(x)=(2(x − 1)(x − 4))/((x + 2)(x − 5)) A) one B) two C) three D) four E) five
asked by Anonymous 
Math  PreCalc (12th Grade)
How many different basketball teams of 5 players can be created from a group of 7 players?
asked by Anonymous 
U.S History DBQ  need help to check my answer!!!
Document A: Andrew Jackson’s Bank Veto Message to Congress, July 10, 1832 Of the twentyfive directors of this bank, five are chosen by the government and twenty by the citizen stockholders. … It is easy to conceive that great evils to our country and
asked by Cassidy 
Math  PreCalc (12th Grade)
Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y = 0.25tan t A) 25x^2 − 16y^2 = 1 B) 25x^2 + 16y^2 = 1 C) x^2 − 16y^2 = 25 D) 25y^2 − 16x^2 = 1 E) 4x^2 − 16x^2 = 1
asked by Anonymous 
help
Sara runs several times a week and always keeps track of how much time she runs each time she goes out. One day she forgets to take her stopwatch with her and wonders if she can still have some idea of her running time. As she passes a particular pond, she
asked by Anonymous 
Chemistry
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5 ✕ 103, Ka2 = 8 ✕ 108, and Ka3 = 6 ✕ 1010. Calculate [H+], [OH ‾ ], [H3AsO4], [H2AsO4‾ ], [HAsO42 ‾ ], and [AsO43 ‾ ] in a 0.16 M arsenic acid solution.
asked by Damian Clarke 
Science
Which statement summarizes water quality issues in China
asked by Katherine 
Math
Which expression is equivalent to sin(3x) + sin x? A) 2cos(2x)sin x B) 2sin(2x)sin x C) 2sin(2x)cos x D) 2sin(2x)cos x E) 2cos(2x)sin x
asked by Anonymous 
Geometry
all square and all rectangles are equiangular?
asked by Alisa 
Geometry
All rectangles are square?
asked by Genny 
Biology
How does diving bradycardia reflex help explain why we can survive after falling into cold water and being submerged for long periods of time? Give a physiological reason that explains the relationship between lung size and body size. From a physiological
asked by Aria 
Geometry
All square and all rectangles are equilateral?
asked by Ariana 
Physics
An Atwood's machine consists of two crates of different masses. If the pulley is frictionless and massless along with a string of negligible mass, find the acceleration of the crates and the tension in the string
asked by Lauren 
Physics
Suppose a sled has a mass of 12 kg and a child is exerting a force of magnitude 200 N. Find the angle q at which the normal force N vanishes. What is happening physically when N = 0?
asked by Lauren 
Physics
A wooden crate sits on the floor of a flatbed truck that is initially at rest, and the coefficient of static friction between the crate and the floor of the truck is 0.25. The driver of the truck wants to accelerate to a velocity of 20 m/s within 4.0 s. If
asked by Lauren 
Math
What is the exact value of sin(2 theta) if cos theta= 3/5 and theta is in quadrant IV?
asked by Anonymous 
statistics
help i do not understand how to solve this question: assume that blood pressure readings are normally distributed with a mean of 111 and standard deviation of 7. A researcher wishes to select people for a study but wants to exclude the top and bottom 10
asked by jessica 
Math
Convert theta = 225° to rectangular form. A) y = 1 B) y = 1 C) y = x D) y = x E) x = 1
asked by Anonymous 
Math
Inventory cost at Tech Co. is 35 percent per year. What is the per unit inventory cost for an MP3 player sold at $50? Assume that the margin corresponds to the retailer's average margin.
asked by Kelbo 
Calc Help :(((((
find the derivative of: (1/3)^(x^2) i got ln(1/3)*(1/3)^(x^2)*(2x) but the answer is supposed to be the negative of that.. where does the negative come in?
asked by Amanda 
Math
For z1 = 4cis (7pi/6) and z2 = 3cis(pi/3), find z1 * z2 in rectangular form.
asked by Anonymous 
physics
if you throw a 0.2 kg ball straight up at 8 m/s how high will it go
asked by AMY 
physics
explain the input energy and out put energies of two kitchen machines
asked by AMY 
physics
Consider a toy car that you pullback to make it go forward. Is it a force multiplier or a distance multiplier? Defend your answer with the observations you could make
asked by marcus 
Speech Statistic needed
Does anyone know of any websites that have statistics on the number of people that volunteer for disaster relief in the us?
asked by Rebekah 
man
How to 2x+6y=26 8x+6y=1 6using elimination method
asked by Ray 
Chemistry
What is the molarity of a 5.00 x 102 ml solution containing 2490 g of KI? How many moles of LiF would be required to produce a 2.5 M solution with a volume of 10.5 L? How many grams of NaI would be used to produce a 2.0 M solution with a volume of 10.00 L?
asked by Clea 
critical thinking
is this a cliam or value judgemnt or onovalue judgement? 1. meat grilled over hickory coal tastes better than meat grilled over mesquite?
asked by glenn cooper 
physics
A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf?
asked by corey 
Physics
Find the total change in the internal energy of a gas that is subjected to the following twostep process. In the first step the gas is made to go through isochoric heating until it gains 5363 J and its pressure is 2.92 105 Pa. In the second step it is
asked by Mark 
social studies
Alice and Andrew are discussing thesis development. Alice argues that a topic becomes a thesis if we want to write about the topic. Andrew, on the other hand, maintains that a topic is not a thesis but that a thesis is the foundation of a topic. Who is
asked by phia 
English
Analogies How is migration like a vacation? I think migration is like a vacation because the animal knows it is time to go to a warmer place where food will be plentiful and weather will be warmer.
asked by Sue 
physics
a wheelof diameter 0.70 meterolls without slipping. a point at the top of the wheel moves with a tangential speed of 2.0 meter/second. a) at what speed is the axis of the wheel moving? b) What is the angular speed of the wheel?
asked by Anonymous 
social studies
In harvesting sources, an excellent way both to narrow down a topic and discover a likely working thesis is to explore _______ the topic. A. different attitudes about B. radical ideas about C. classic literature on D. different perspectives on My answer is
asked by phia 
math
The decimal 4.25 is between which two integers? A. between 2 and +4 B. between 1 and +3 C. between 1 and +4 D. between 1 and +5
asked by victoria 
Quadratic Equations
Whats The Next Step To This: 2025a+45b=1.39 324a+18b=1.81
asked by Lanna 
social studies
The most important test of a paraphrase is A. how well it captures the essence of the original source using your own words. B. the number of synonyms found in the paraphrase. C. the extent to which your words parallel the words in the original source. D.
asked by phia 
math
Enter only the value of the variable: 9(62v)=12(v11) i think its 13 is that correct ? if not what is it ?
asked by josh 
Business & Economics
For the most recent seven years, the U.S. Department of Education reported the following number of bachelor's degrees awarded in computer science: 4,033; 5,652; 6,407; 7,201; 8,719; 11,154; 15,121. What is the annual arithmetic mean number of degrees
asked by Student5 
trig
Find csc(theta), tan (theta), and cos (theta), where theta is the angle shown in the figure. Give exact values, not decimal approximations c=10 b=7 a=7.14 the right angle is locate between sides a and b and the theta angle is an acutle angle sides b and c.
asked by Joey 
language
What is the synonym for car?
asked by Jiskha1 
chemistry
Distilled water normally contains dissolved CO2. When preparing NaOH standard solutions, it is important to use CO2 free distilled water. How does dissolved CO2 in distilled water affect the accuracy of the determination of a NaOH solution’s
asked by anonymous 
homonyms
What is the homonym for gnu???
asked by dan! 
Chemistry: Check my answers?
Write “yes” or “no” below if the chemical equation is balanced or not. 1. 2H2 + O2 > 2H2O 2. S8 + 12O2 > 8SO3 3. HgO > Hg + O2 4. Zn + HCl > ZnCl2 + H2 5. 2Na + 2H2O > 2NaOH + H2 6. 2Al + 3FeO > Al2O3 + 3Fe 7. 4Si2H3 + 11O2 >
asked by Anonymous 
Algebra!
Can someone help me with these problems so i can do the rest of my textbook work on my own plz? What is the value of n so that the expression x^2+11x+n is a perfect square trinomial? (1 point) What is a solution of x^2+6x=5? (1 point) What is the solution
asked by Gabby 
homonyms
What is the homonym for do?
asked by jake 
math
it took tracy 1 1/4 hours to finish her homework . how many seconds did it take trac to do her work?
asked by kartik 
social studies
In a biography, all of the following would be a primary source except for which one? A. A telegram sent to the subject by a friend B. An essay written about the subject by a former colleague C. The personal testimony of the subject’s widow, gathered in
asked by phia 
math
The budget for the childrens museum's annual party is $20,000 . Food accounts for 1/2 of the budget , beverages accounts for 1/5 of the budget, decorations for 1/8 ,and entertainment for 1/8 of the budget . The rest of the money will be spent on staffing
asked by kartik 
math
The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work .
asked by sai 
social studies
According to Tardiff and Brizee, an essay that makes a claim supported by evidence is classified as an _______ essay. A. expository B. analytical C. argumentative D. explanatory My answer is A
asked by phia 
science
mountains that are formed between two large faults are known as a. seamounts b. uplifted mountains c. plateaus d. faultblock mountains
asked by Anonymous 
math
The wholesale cost of a video game is $459.45. The original markup was 51% based on selling price. Find the final sale price after the following series of price changes: a markup of 24%, a markup of 17%, and a markdown of 10%.
asked by bunny 
math
The wholesale cost of a video game is $459.45. The original markup was 51% based on selling price. Find the final sale price after the following series of price changes: a markup of 24%, a markup of 17%, and a markdown of 10%.
asked by bunny 
Lit
I have an essay and this is one part of my thesis... "In the nineteenth century, some ways the middle class participated in revolutions was by establishing liberalism, one way was through literature, and through the revolutions of 1848." I wasn't sure if
asked by Serena 
Physics
A small block on a frictionless surface has a mass of 70 g. It is attached to a massless string passing through a hole in a horizontal surface (see diagram). The block is originally rotating in a circle of radius 45 cm with angular speed 0.80 rad/s. The
asked by Luke 
English
Need an example of an analogy that has to do with migration is like a vacation. Don't have any idea!!! I am lost on this one Maybe "Vacation is like a migration to a tropical island"
asked by Anonymous 
math
patterns with fractions write a rule for the sequence.then,find the unknown number how do you do this?ill give you an example...1/2, 2/3, 1, 1 1/6.it says,think:the pattern is increasing.add 1/6 to find the next term.here is a problem.... 1 3/8, 1 3/4, 2
asked by maria 
math
The position of an object moving in a straight line is given by the function , where s(t) represents distance traveled and t represents the time the object has been in motion. How long (to the nearest tenth) will it take the object to move 17 meters?
asked by Emmanuel 
MATH
there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal
asked by MANISH 
science question?
can someone explain this to me what does location has to do with wind energy availability
asked by matt 
math
The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work . find how
asked by raj 
math
Bladder infections are often caused when the bacteria E. coli reach the human bladder. Suppose that 3000 of the bacteria are present at time t = 0. Then t minutes later, the number of bacteria present will be a) How many bacteria will be present after 10
asked by Emmanuel 
math
Rachel , smith , john and Thomas brought in 300 pennies for the penny harvest . Smith brought in 2/6 of the pennies . Rachel brought 1/5 and Thomas brought 1/4 of the pennies. How many pennies did john bring in?
asked by rose 
math
There are 3 earthworms .Their length are 6 1/4 inches, 4 1/4 inches and 5 3/8 inches. What is the total length of the three earthworms.
asked by kevin 
science question?
can someone explain to me?? can someone explain the economic impact of wind energy on an area
asked by matt 
Precalculus
The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of 0.4 . Suppose that the height of the candle after 13 hours is 24.8 centimeters. What
asked by Joey 
Math
Joenia has 12 kiloliters of Gatorade. How many ml of Gatorade does she have?
asked by Shohanur 
Physics
Water is boiled by burning coal. The resulting steam blows agains huge turbine blades. The turning blades spin in a magnetic field, producing electricity. Describe in order the energy conversions.
asked by Catherine 
Macroeconomics
A key determinant of the price elasticity of supply is
asked by Anonymous 
math
Thomas bought a 3foot sandwich for his .Hew figured out that each guest can have 1 1/2 inches of the sandwich . HOW MANY guest does Thomas have.
asked by rachel 
math
Five friends each ate 2/12 of a pizza .What fraction of the pizza Is left?
asked by kevin 
Algebra
Graph the rational function x/(x6) To graph the function, draw the horizontal and vertical asymptotes (if any) and plot at least two points on each piece of the graph.
asked by Kenny 
math
Rosy has been jogging for 3 weeks. In the first week She jogged 3 days each for 4/6 of an hour. During week 2 she jogged for 3/4 of an hour on 2 days. In week 3 she jogged 4 days each for 3/5 of an hour . WRITE one expression that would show the total time
asked by sid 
Englisj
In Langston Hughes poem, Dreams, Would using a simile rather than a metaphor Negate or weaken Hughes' poem?
asked by Anonymous 
math
Rachel spent 2 1/4 hours practing for her violin solo 5 times last week . How much times did Rachel spend practicing last week?
asked by andrew 
math
Anna uses 5/6 tank of gas each week driving to work . How many tanks of gas does Anna use in 1 2/3 months.
asked by kenny 
English
I have an essay and this is one part of my thesis... "In the nineteenth century, some ways the middle class participated in revolutions was by establishing liberalism, one way was through literature, and through the revolutions of 1848." I wasn't sure if
asked by Serena 
chemistry
Calculate the resulting pressure if 4.50 liters of nitrogen at 35 degrees Celsius and 790 torr and 3.7 liters of oxygen at 15 degrees Celsius and 750 torr are pumped into a 1.00 liters container at 25 degrees celsius. Assume ideal gas behavior.
asked by carolann 
Help Please Statistic
7. The table below shows the probability distribution of the types of food purchased by students from the school cafeteria. What is the probability a student has purchased Caesar salad? (2 points) 0.17 Suppose houses are available for purchase during
asked by Tikima 
math
Judie weighed 7 3/8 pounds when she was born .By the age of 6 she was 5 times as heavy . if A stands for pounds Write the equation you would use to find Judie weight at age 6
asked by anny 
math
Thomas bought a 3foot sandwich for his .Hew figured out that each guest can have 1 1/2 inches of the sandwich . HOW MANY guest does Thomas have.
asked by georgy 
Physics
A diver stands on the end of a diving board as shown in the figure on the right. The mass of the diver is 58 kg and the mass of the uniform diving board is 35 kg. Calculate the magnitudes and directions of the forces exerted on the board at the points A
asked by Bobby 
Physics
A ladder, 5.0 m long, leans against a frictionless wall at a point 4.0 m above the ground. A painter is climbing up the ladder. The mass of the ladder is 12.0 kg and the mass of the painter is 60.0 kg. The ladder begins to slip at its base when the painter
asked by Richard 
math
One day, the temperature outside increased by 6/10 every hour for seven hours. How much did the temperature increase that day?
asked by andrew 
bussines
does it take longer to get your mba if you take bcom over bba?
asked by celina 
math
kevin bought a 3foot sandwich for his .Hew figured out that each guest can have 1 1/2 inches of the sandwich . HOW MANY guest does kevin have
asked by john 
English
Is the comma in the right place below? Did you know, Dad, that the the colonists broke all the treaties signed by Philip and his father? Do the commas go there because to set off a nonessential appositive?
asked by Kelly 
Algebra 1 Answer Evaluation
Factor the following polynomial completely. "3c^2 + 12  63" My answer: (3x +9)(x  7)
asked by Anonymous 
geometry
gerri raced around all the faces of a threedimensional shape.she drew the following polygons.what threedimensional was gerri tracing.
asked by devon 
Physics
A 5.1 kg concrete block rests on a level table. A 3.4 kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.3 m/s2, what is the coefficient of friction between the
asked by Alex 
math
1/20 as a fraction?
asked by Anonymous 
math
0.125 as a percentage?
asked by Anonymous 
chemistry
how much heat is required when 6.00g of water is melted at its melting point
asked by chelsea 
Math
Given the following function, choose the graph with the two possible angles with the domain 0 < or = to theta < or = to 360 degrees. Sec(theta)= 13/5
asked by Anonymous 
6th gr. math
0.2 as a percent?
asked by Anonymous 
Finance
what is the net present value of a note for $70,000, PAID MONTHLY AT $600, plus 7% interest
asked by Dave 
Algebra
A box shaped like a rectangular prism has a height of 17 in and a volume of 2,720 in³ The length is 4 inches greater than twice the width. What is the width of the box? • –10 in • 8 in • 20 in • 40 in
asked by Sandra 
math
0.25 as a fraction
asked by Anonymous 
Treaty of Paris, quick question, thanks! ☺
The Treaty of Paris in part included returning to where exactly? I cannot remember and I am writing a paper for school in which I need to know where they went to. Thanks! ☺ ~katt
asked by imissbobby♥ 
math
2/5 as a decimal
asked by Anonymous 
math
1/2 as a decimal
asked by Anonymous 
math
0.6 as a percent
asked by Anonymous 
Math
If your heart beats 24 beats inn10 sec,how many beats will it beat in 3 mins?
asked by Deanna Dobson 
Health
A swimmer would like to improve his time in the 100 yard freestyle race. After talking to his coach, he intends to focus on one critical element at the beginning of the race. This swimmer will try to improve his 100 yard freestyle time by improving his (1
asked by Gabby 
Treaty of Paris, quick question, thanks! ☺
Treaty of Paris was the impetus for __________ recognition of the United States as an independent nation. a.Spain’s b.Britain’s c.Germany’s d.None of the above Thanks! ☺ ~katt
asked by imissbobby♥ 
History 8th
Washington’s troops, joined by the French forces under de Grasse and Lafayette, soundly defeated the British troops of General Cornwallis at the which battle?
asked by imissbobby♥ 
science
True or False: One of the skin’s functions is to produce vitamin D (1 point) True False 2. Your _____ is the largest organ of your body. (1 point) brain large intestine skin lungs 3. The _____ is the outer, thinnest layer of your skin. (1 point) fatty
asked by bob varen 
Algebra 1 Answer Evaluation
Factor. 1. 30y^3  50y A: 10y(3y  5y) 2. Factor a^2  5a^2 + 2a 10 by grouping. A: ?
asked by Anonymous 
math
0.625 as a percent
asked by Anonymous 
math
0.6 as a fraction
asked by Anonymous 
math
0.7 as a fraction
asked by Anonymous 
4th grade math
Suppose 8 kids are running a mile. 3/4 of the kids ran the mile in less than 10 minutes. How many kids finished the mile in less than 10 minutes.
asked by Mythreyee 
4th grade math
What is 1. 2/3 + 3/6 = 2. 3 1/10 + 17/5 = 3. 3 2/6  1 5/6 =
asked by Mythreyee 
Physics
A 2.00kg object is hanging on a 1.1m string. The object is pulled 20cm away from the equilibrium position and held there. a) What is the pulling force in the string when the object is kept still ? b) Now the object is released, what is the speed of the
asked by Physics: Pendulum 
math
3/4 as decimal
asked by Anonymous 
Physics
The drawing shows an equilateral triangle, each side of which has a length of 2.20 cm. Point charges are fixed to each corner, as shown. The 4.00 µC charge experiences a net force due to the charges qA and qB. This net force points vertically downward and
asked by Joe Santhosh 
Physics( Explain and choose right answer)
A 3 kg cat sitting on a 1.5 kg piece of cardboard on a frozen lake wants to jump to shore without touching the ice. If there is no friction between the cardboard and the ice, when the cat jumps. the cardboard will move in the opposite direction with a
asked by Dan 
Indian wells
5/8 of the students in mr. Halls class got an A or B . Four times as many students got an A than a B. what fraction of Mr. Hall's class got an A.
asked by Gina 
English 10th grade
This is confusing to me: "Truth, Sekhar reflected, is like the sun. I suppose no human being can ever look it straight in the face without blinking or being dazed. He realized that, morning till night, the essence of human relationships consisted in
asked by Sandra 
Physics( Explain and choose right answer)
A ball on the end of a rope is moving in a vertical circle near the surface of the earth. Point A F T is at the top of the circle; C is at the bottom. Points B and D are exactly halfway between A and C. Which one of the following statements concerning the
asked by Dan 
Maths
marie puts dimes in groups of 4 with 2 dimes left over. When she puts them in groups of 5, she had 1 left over? What is the smallest number of dimes she could have if she has more than 10?
asked by Thess 
math
If an airplane travels at 300 mph with no air resistance, and it travels directly south with a wind of 50 mph east, how fast is the plane going?
asked by tarra 
Music
So I can't follow links, but I am doing a slideshow about losing someone you care deeply about, (yes it is for school) and I am trying to find a certain song. It is country, I cannot remember the name of the song or the artist, but i know that it is two
asked by imissbobby♥ 
math
Mr. Gonzalez's sixthgrade class is putting on a play. He reserved the first 6 rows of the auditorium for family members and friends of the 24 students in his class. If each row contains 17 seats and each student can invite the same number of guests, how
asked by mon 
Physics
A 115.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 46.0 deg with the horizontal.what is the magnitude of the normal force between the ramp and the box? The applied force= 1167.04N
asked by Anonymous 
math
Layne sends an email to 7 people and those 7 people send the email to 7 more people, and so on. Write an expression to show the number of people who will receive the email after the fifth round.
asked by mon 
physics
A person has a choice while trying to move a crate across a horizontal pad of concrete: push it at a downward angle of 30 degrees, or pull it at an upward angle of 30 degrees. If the crate has a mass of 50.0 kg and the coefficient of friction between it
asked by santoki 
algebra
find a polynomial f(x) of degree 4 that has the following zeros: 0,7,4,5 Leave your answer in factored form
asked by Adnan 
Economics
Suppose Bill is on a lowcarbohydrate diet. He can eat only three foods: Rice Krispies, cottage cheese, and popcorn. The marginal utilities for each food are tabulated below. Bill is allowed only 167 grams of carbohydrates daily. Rice Krispies, cottage
asked by Mark 
physics please help!!
A diver stands on the end of a diving board as shown in the figure on the right. The mass of the diver is 58 kg and the mass of the uniform diving board is 35 kg. Calculate the magnitudes and directions of the forces exerted on the board at the points A
asked by Bobby 
Calculus A
Find all relative extrema and points of inflection for the following function... h(X)= X^2+5X+4/ X1 min= max= inflection points=
asked by Anonymous 
Implicity
Find dy/dx implicitly in terms of x and y only for the following function; X+4xy=y^2
asked by Anonymous 
MathStatistics
Assume your expected lifetime income is $1.5 million and the standard deviation is $250,000. a) What is the chance that you will earn more than $1.1 million during your lifetime? b) What is the chance that you will earn less than $2 million during your
asked by Brittany 
Algebra
Which expression gives the solutions of –5 + 2x² = –6x?
asked by Sandra 
MathStatistics
5) You know that you will inherit 20% of your uncle John’s wealth, 30% of your aunt Becky’s wealth and 50% of your parent’s wealth. Since they are not dead yet, their respective wealth is a RV and all we know is that their wealth at death is ~N and
asked by Niccoli 
MathStatistics
The chance that a college student has a job offer before graduation is 70%. If I sample 200 graduates… (use continuity correction) a) what is the chance more than 130 of them have a job offer? b) what is the chance less than 133 of them have a job offer?
asked by Niccoli 
MathStatistics
Assume you build a Candy castle for which you buy a bag of gummy bears, a block of chocolate and a bag of nuts. The weight of the three ingredients is a random variable (X1, X2 and X3) with mean weights μ1 = 200 gram, μ2 = 400 gram and μ3 = 150 gram.
asked by Niccoli 
math
mr andropolis wants to leave the waitress a 12% tip. estimate the tip he should leave if the family's bill is $32.46
asked by Anonymous 
please help asap!
A ladder, 5.0 m long, leans against a frictionless wall at a point 4.0 m above the ground. A painter is climbing up the ladder. The mass of the ladder is 12.0 kg and the mass of the painter is 60.0 kg. The ladder begins to slip at its base when the painter
asked by Bobby 
math
Carlos invested his savings in two investment funds. The amount he invested in Fund A was $8000 less than the amount he invested in Fund B. Fund A returned a 8% profit and Fund B returned a 4% profit. How much did he invest in Fund B, if the total profit
asked by Kori 
Science
Which element would be most reactive? a. Al b. Cl c. P d. Na I initially thought that the answer was B, but I'm not sure about it. My second question is... Which nonmetal is most reactive? a. Cl b. F c. I d. S I'm not sure about the answer for this one
asked by Alice 
Physics
A 5kg ball is at rest when it is struck headon by a 2kg ball moving along a track at 10 m/s. If the 2kg ball is at rest after the collision, what is the speed of the 5kg ball after the collision?
asked by Amanda 
Physics
A railroad car with a mass of 12000 kg collides and couples with a second car of mass 18000 kg that is initially at rest. The first car is moving with a speed of 9 m/s before collision. If external forces can be ignored, what is the final speed of the two
asked by Amanda 
Physics
Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg. to the horizontal. The cofficient of kinetic friction between the lighter block and the plane is 0.15 and that between
asked by Anonymous 
Physics
Two boxes of mass 7.40 and 7.00 kg are in contact and are accelerated across a horizontal surface by an force of 51.49 N applied parallel to the surface and pushing on the lighter box. The magnitude of the frictional force between the surface and the
asked by Anonymous 
Physics
A wave can be propagated on a rope by holding one end of the rope and moving your hand up and down. The resulting wave is: A)neither transverse nor longitudinal. B)both transverse and longitudinal C)longitudinal D)transverse
asked by Amanda 
trig
tan^2(5x)cos^4(tx = 1/8  1/8cos(20x)
asked by Peggy 
trig
tan^2(5x)cos^4(5x) = 1/8  1/8cos(20x)
asked by Peggy 
Redox Titration questions!
Calculate the percent of iron in a 50.0 gram sample containing iron if 45.6 mL of 2.5 M KMnO4 titrant was used. can you solve this?
asked by Yoojin Lee 
Water cycle question
The planet is covered by 97% ocean water. What would the global water cycle look like if the earth were covered by 50% ocean water?
asked by Anonymous 
Water cycle question
Explain why residence time in the atmosphere for water is short but the flux in and out of the atmosphere is huge.
asked by Anonymous 
Physics
A box of mass 50.0 kg is connected to a second box with a mass of 54.0 kg. Both are sitting on a horizontal surface and the coefficient of kinetic friction between the surface and each box is 0.51. If the second box is pulled away from the first box with a
asked by Anonymous 
Physics
A box of mass 54.0 kg is sitting on a ramp which makes an angle of 37.0 degrees with respect to the horizontal. The coefficient of friction between the box and the ramp is 0.21. This box is connected by a massless string over a pulley at the top of the
asked by Anonymous 
Math
hope's mom baked a cake for hope's birthday. It is in the shape of a rectangle 10 inches long and 6 inches wide. If she starts at one corner and puts a candle every 2 inches, how many candles will fit around the edge of the cake?
asked by Maya 
literacy
how do you write a news report on the topic "storm shuts down region"??
asked by ann 
Chemistry
3.25g of zinc was added to 50cm^3 of a 4.0 molar dm^3 HCl. When the reaction was completed the temperature rose by 28 degrees celcius. (a) Is the reaction exothermic or endothermic? (b)All the zinc dissolve in this reaction. How many moles of zinc
asked by Jessica 
math
The deck in Hope's backyard is round. It has 5 posts evenly spaced around the edge to support a trellis. For her birthday party, she wants to connect each post to all the other posts with crepepaper streamers. How many streamers will she report?
asked by Maya 
ps 65
Susan ate part of pizza.She ate more than 1/3 of the pizza. How much of pizza might Susan have eaten?
asked by susan 
American History
I'm preparing for my oral report for my NHD Project which is based on the creation of the nazi party but I can't answer one question which is, what is the theme that the nazi party learned or what was the theme of world war 2? Please help me THANK YOU :)
asked by Tris 
math
CALCULATE if 1/3of the candles are pink 3/8 are yellow and 1/4 is blue remaining 2 are white
asked by SAM 
Physics
A wagon is coasting at a speed vA along a straight and level road. When twentyfive percent of the wagon's mass is thrown off the wagon, parallel to the ground and in the forward direction, the wagon is brought to a halt. If the direction in which this
asked by Anonymous 
stats
Five percent of all items sold by a mailorder company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company, neither will be returned for a refund.
asked by Anonymous 
Finance
Cochrane, Inc., is considering a new threeyear expansion project that requires an initial fixed asset investment of $1,860,000. The fixed asset will be depreciated straightline to zero over its threeyear tax life, after which time it will be worthless.
asked by Alec 
Financial
Cochrane, Inc., is considering a new threeyear expansion project that requires an initial fixed asset investment of $1,860,000. The fixed asset falls into the threeyear MACRS class (MACRS Table). The project is estimated to generate $1,950,000 in annual
asked by Alec 
Trigonometry
Graph the function y=2sin(x2pi/3). To draw the graph, plot all xintercepts, minima and maxima within on period. I need to graph at least 5 points. I have pi, 0, pi, 2pi, 3pi, and 4pi along the xaxis
asked by Shelby 
math
Sonya spent 2/5 of her money and then had $18 left. How much money did Sonya originally have?
asked by Anonymous 
Chemistry
Acetylene(C2H2) torches are used in welding. How much heat (in kJ) evolves when 2.0L of C2H2 (d=1.0967kg/m3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is C2H2(g)+52O2(g)→2CO2(g)+H2O(l), ΔH∘=−1299.5kJ
asked by Kelly 
Chemistry
A 3.0g sample of NaCl is added to a Styrofoam cup of water, and the change in water temperature is 6.5∘C . The heat of solution of NaCl is 3.76 kJ/mol. What is the mass (in g) of water in the Styrofoam cup?
asked by Kelly 
physics
A compact disk player has just been turned off. A disk decelerates uniformly from an initial angular velocity of 7.90 rev/s. The disk rotates through 5.50 revolutions before coming to rest. What is the tangential acceleration of a point on the disk 5.05 cm
asked by Anonymous 
Puncuation
Does this sentence require any improvements in terms of punctuation? I think Hansberry means that summer is honorable in terms that this season does fulfill wishes and dreams like she had been told; Hansberry’s wish being that the dying woman could live
asked by Anonymous 
Calculus
Find dy/dx implicitly in terms of x and y only for the following function; x+ 4xy=y^2
asked by Raven 
Calculus A
Find all relative extrema and points of inflection for the function; h(x)=(x^2+5x+4)/(x1)
asked by MacDonald 
Geometry
A fighter plane observes a target on the ground with an angle of depression of 21 degrees. The target is 3.5 miles away along a direct line of sight. How high is the fighter plane? Round to hundredths. Please help!
asked by Kevin 
Physics
A series circuit contains only a resistor and an inductor. The voltage V of the generator is fixed. If R = 15 and L = 5.6 mH, find the frequency at which the current is onehalf its value at zero frequency. ?? Hz Thanks!
asked by Neil 
English
What is the difference between lunch plate and lunch tray in shape? Do both mean the same?
asked by rfvv