Questions Asked on
April 16, 2015

Language Arts
1. What is Margot's motivation for saying "Sometimes I wish the end would come" in The Diary of Anne Frank, Act 2? She wants to make Anne angry She wants the others to feel sorry for her She wants someone to give her more food She wants to stop living in
asked by Hailee 
Language Arts
1. What is one cause of the increased tension in Act 2 of The Diary of Anne Frank? Mr. Dussel to take control of the group Mr. Dussel picks on things that people care for or are sensitive about Peter is intentionally unkind to Margot and anne Mr. Frank
asked by Hailee 
physics class
Suppose that you balance a 5 kg ball on the tip of your finger that has an area of 1 cm2. What is the pressure on your finger?
asked by Anonymous 
art
How do landscape paintings convey the values and ideas of Chinese culture? (1 point) Landscape paintings show chaotic, unhappy culture. Landscape paintings reveal the importance of natural history to the Chinese. Landscape paintings show that Chinese
asked by Anonymous 
MATH
Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day,
asked by SANDY 
math plz help
The contents of a jar holds 4 red marbles, 7 blue marbles, and 5 green marbles from which you select marbles at random. What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your your work. Is it 4/16 for
asked by Pink 
Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2.
asked by Andrew 
Math
A construction crew wants to hoist a heavy beam so that it is standing up straight. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 40 degrees
asked by Rebecca 
English
"The night was gone. The morning star was shining in the sky. I too had become a completely different person. The student of the Talmud, the child that I was, had been consumed in the flames. There remained only a shape that looked like me. A dark flame
asked by Sue 
calculus
The base of a solid in the xyplane is the firstquadrant region bounded y = x and y = x2. Cross sections of the solid perpendicular to the xaxis are equilateral triangles. What is the volume, in cubic units, of the solid?
asked by Anonymous 
Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed Amplitude and wavelength Amplitude and frequency 2. Sound
asked by Hailee 
Math
Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only bacteria which can double every hour, how many bacteria will we have by the end of the day?
asked by M 
precalculus
find an hyperbola equation with foci (0, +/8) and asymptotes; y=+/1/2x?
asked by JK 
chemistry
When 2.85 g of HC7H5O2 (molar mass = 122.12 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter changed from 24.05 ºC to 29.19 ºC. What is the heat capacity of the calorimeter in units of kJ/ºC?
asked by Anonymous 
Math
My problem is: "Will ran four miles on his first day of training. The next day he ran 1/3 of that distance. How far did he run the second day" I need help. I think it is either 1 or it is 3 and 1/4. I'm undecided.
asked by Keon 
math
The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 I came up with $43.26 which its not a choice.
asked by Jane 
chemistry
How many kg of wet NaOH containing 12% water are required to prepare 60 litre of 0.5N solution?
asked by jaimi 
operation managment
Garden Variety Flower shop uses 625 clay pots a month. The pots are purchased at $2 each. Annual carrying costs per pot are estimated to be 15 percent of cost, and ordering costs are $125 per order. The manager has been using an order size of 1,500 flower
asked by mike john 
science
4. When a fan is turned on, it changes electrical energy into ______ energy. A. motion B. magnetic C. gravitational D. electromagnet 5. An experiment discovered that a particular material was a poor conductor of electricity. This material would most likely
asked by Anne 
Science
Problem How could renewable energy sources be used in a house? Devise a Plan 1. Consider what you learned about renewable energy sources. Use what you learned to design a house that operates entirely on renewable energy sources. Focus on three major needs:
asked by Priscilla 
Math
The population of Winnemucca Nevada can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What was the population in 1990? By what percent did the population increase by each year?
asked by M 
Science last question
Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has less mass C. box a because it
asked by Anne 
chemistry
How much AgCl will be formed by adding 200mL of 5N HCl to a solution containing 1.7g AgNO3?
asked by jaimi 
chemistry
How much BaCl2 would be needed to make 250 mL of a solution having same concentration of Cl^ as the one containing 3.78g of NaCl per 100 mL?
asked by jaimi 
chemistry
how can you separate pure benzoic acid from a mixture of benzoic acid and sand?
asked by amy 
precalc
A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Show your work. Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3 Sk: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + k(k + 1) =
asked by Ciara 
SS help plz
Why did German ships begin to attack us ships in 1941 before the Japanese attack on Pearl Harbor? a. Germany wanted to weaken the United States b. Germany declared war on the United States c. The U.S disagreed with Nazi expansion and values d. The U.S
asked by basketball&batman 
english
Henry and Lois are discussing ways to evaluate sources. Henry maintains that one should scan a source before skimming it. Lois argues that scanning is the best first step in evaluating a source. Who is correct?
asked by yulanda 
statistics
A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.77 hours. Assume that a random sample of 40 mechanics is selected and the mean
asked by phia 
chemistry
in what ratio 0.2M NaCl and 0.1M CaCl2 solutions are to be mixed so that in the resulting solution, the concentration of negative ions is 50% greater than the concentration of positive ions?
asked by jaimi 
physics
A ski jumper starts with a horizontal takeoff velocity of 25m/s and lands on a straight landing hill inclined at 30 0 . Determine (a) the time between takeoff and landin. (b) The length 'd' of the jump. (c) The maximum vertical distance between the
asked by Anonymous 
physics
A spaceship has a momentum of 20,000 kg·m/s to the left; its mass is 500 kg. What is the magnitude of its velocity?
asked by Anonymous 
English
In which sentence is the meaning of the word blackmail best expressed. A. They hope that her envy would not cause blackmail B. They were afraid that blackmail would lead to more demands for money C. They reached for the phone, eager to hear the blackmail
asked by Abby 
Science
Johnny left a glass of milk on his bedside table for a week, and it spoiled. At the end of the week, the glass contained a yellow liquid with lumpy white chunks, and there was a terrible odor. What can be concluded? a) The milk has undergone a physical
asked by Ann 
College Physics
Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1050Kg and was approaching at 8.00m/s due south. The second car has a mass of 700Kg and was approaching at 20.0m/s due west. A) Calculate the final velocity
asked by Josie 
Math
The length of a blue ribbon is twothirds the length of the red ribbon.The blue ribbon is 30 cms long.Write an equation you can use to find the length of r the red ribbon
asked by Jesse Jae 
English
Figurative Language 1.."August is a day in the sun" These words compare _____ to _____. 2."Such a stinky flower that is makes people regret having a nose" These words suggest. 3. "the camera spoke for him" These words suggest. 4."them look like incomplete
asked by Hayden 
calculus
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 9x on the interval [−1, 1]. If so, find the xcoordinates of the point(s) guaranteed to exist by the theorem
asked by Anonymous 
Math
Dakota says the point on the number line shown here is 4/5. His teacher says that he is reading the number line incorrectly. What is Dakota's error? What is the correct fraction?
asked by Amari 
Social studies
5. William Tecumseh Sherman's "march to the sea" headed toward; A) Charleston, SC ****** B) Richmond Virginia C) Savannah Georgia D) Baltimore, Maryland 7. What battle began when the Union cavalry surprised the Rebel infantry raiding the town for shoes? (1
asked by dd 
math
A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were
asked by leah 
Science
Which chemical equation shows that no atoms are lost during a chemical reaction? A. 8Fe+s8>Fe5 B. 8Fe+8S8> 8FeS C. Fe+8S8>FeS D. 8Fe+S8>8FeS Is the answer A?
asked by Kelly 
geometry
Which of the following statements is not always true? A. In a rhombus, the diagonals bisect opposite angles. B. In a rhombus, the diagonals are perpendicular. C. In a rhombus, the diagonals are congruent. D. In a rhombus, all four sides are congruent.
asked by Destiney 
chemistry
Which element is reduced in the unbalanced reaction below? I− + MnO4− + H+ = I2 + MnO2 + H2O I no reduction occurred in this reaction O H Mn
asked by danny 
English 4
what is the difference and the likes of Psalm 23 and The Sermon on the Mount ?
asked by Ciara 
math plz help Irving
How many ways can 4 students be chosen from a class of 12 to represent their class at a banquet? A.495 B.990 C.5,940 D.11,880 Is the answer C?
asked by Pink 
physics
The coefficient of apparent expansion of a liquid when determined using two different vessels A and B are gamma1 and gamma2 respectively. If the coefficient of expansion of the vessel A is alpha, the coefficient of linear expansion os the vessel B is
asked by KARAN 
chemistry
Determine the hydroxide ion concentration in a solution that is 0.0004 M HCl. Answer in units of M. I have no idea how to start, I just need to know what I need to solve for and hoe to set it up, I know the formula pOH^=log[OH^] I just don't know where
asked by will 
Interaction of Forces
The ball in the image below is rolling toward the block. The ball will create a disturbance in the stability of the block by knocking it over. Which of the following correctly predicts what will happen to the block? [image of ball rolling toward tall,
asked by Anonymous 
Chemistry
How much heat is required to raise the temperature of 90.0g of water from its melting point to its boiling point? Can someone please help me set this up, I am so confused
asked by Chemistry Heat 
AP Chemistry
How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 5.1 liters against a constant external pressure of 0.0100 atm? Answer in units of J. I get w=p(deltaV) but what about moles?
asked by Alex 
math
3.A poll was taken to determine the birthplace of a class of college students. Below is a chart of the results. a.What is the probability that a female student was born in Orlando? b.What is the probability that a male student was born in Miami? c.What is
asked by jorgbor 
Inorganic chem
What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water bottle?
asked by Becca 
Math
Ian gets $9 for each hour he works and $10for each day he works. To find out how much he makes in a day, he made the equation y=9x+10x, where x is the number of hours he works. Explain why Ian's equation will not tell him how much he makes in a day.
asked by Monique 
Art Please Help :)
The placements of rocks in a Japanese garden is an example of which artistic principal that communicates the cultural value of embracing a lack of equality? A. Asymmetry*** B. Balance C. Symmetry D. Transformation Which artistinventor trait is responsible
asked by Anonymous 
chemistry
2 litre of NH3 at 30°C and at 0.20 atmosphere is neutralized by 134 mL of a solution of H2SO4. Calculate normality of H2SO4
asked by jaimi 
Civics
Which best describes how the money that individuals have in savings accounts affects the economy? A. The money in savings accounts is used for daily expenses like food and gas which keep the economy going. B. The money in savings accounts just sits in the
asked by Student 
physics
. A tennis player serves the ball at a height of h with an initial velocity of 40m/s at an angle of 4 0 with the horizontal. Knowing that the ball clears the 0.941m net by 152mm. Determine (a) the height h (b) the distance d from the net to where the ball
asked by Anonymous 
Civics
Which best describes how patent law encourages market competition? A. It protects peoples ideas B. It protects companies copyrights C. It protects companies from forming trust D. It protects companies from pricefixing I think that the answer is A.
asked by Student 
Math
During normal breathing, about 12% of the air in the lungs is replaced after one breath. Write an exponential decay model for the amount of the original air left in the lungs if the initial amount of air in the lungs is 500 mL. How much of the original air
asked by M 
precalc
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 1^2 + 4^2 + 7^2 + . . . + (3n  2)^2 = (n(〖6n〗^23n1))/2
asked by Ciara 
MATH
A food snack manufacturer samples 15 bags of pretzels off the assembly line and weighed their contents.If the sample mean is 10.0 and the sample standard deviation is 0.15, find the 95% confidence interval of the true mean.
asked by GRACE 
phyiscs
Water flows through a 4 cm diameter garden hose at a velocity of 2 m/s. What is the velocity of the water if a nozzle is used with a diameter of 0.5 cm? please help..thanks in advanced
asked by Jennifer 
calculus
Set up, but do not evaluate, the integral which gives the volume when the region bounded by the curves y = Ln(x), y = 1, and x = 1 is revolved around the line y = −3.
asked by Anonymous 
Chemistry
What volume (in mL) of 0.55 M Na2SO4 solution is needed to precipitate all the barium, as BaSO4(s), from 15.5 mL of 0.25 M Ba(NO3)2 solution?
asked by john 
Chemistry
In the coppersilver cell, why must the Cu2+ and Ag+ solutions be kept in separate in containers?
asked by Maire 
calc
If f(x) = 3x^2 − 2x, 0 ≤ x ≤ 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints.
asked by sara 
Math
if m
asked by Birdy 
Integration by Parts
integral from 0 to 2pi of isin(t)e^(it)dt. I know my answer should be pi. **I pull i out because it is a constant. My work: let u=e^(it) du=ie^(it)dt dv=sin(t) v=cos(t) i integral sin(t)e^(it)dt= e^(it)cos(t)+i*integral cost(t)e^(it)dt do integration by
asked by Ashley 
Sizimele
English is the language of opportunity.why bother to teach indigenous language
asked by Thembinkosi 
statistics
The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Arts 1358 Business 1676 Engineering 868 9313 What is the probability that a randomly
asked by Bob 
Chmistry
pcl3(g) cl2(g) ¨
asked by Marie 
Civics
Which of the following scenarios would be most likely to cause a small bank to be less willing to loan money to small businesses in a community? If the bank cannot sell the loan to some other bank. If the bank cannot make profit on the loan. If the
asked by Student 
science
A rectangular barge floats in freshwater. When a 400 kg block is loaded on the 5 m long by 2 m wide barge, the barge sinks a few centimeters deeper. How much deeper does the barge lower?
asked by Anonymous 
Social Studies PLS. Help
1. The Zealots were Jews who believed a. they should fight the Romans b. they should accept Roman rule c. they should set up a new country d. religious laws must be followed 2. What happened after the Jews rebelled against the Romans in AD 132? a.
asked by TRRR+S<3 
L.A
O Captain! my Captain! our fearful trip is done, The ship has weather’d every rack, the prize we sought is won, The port is near, the bells I hear, the people all exulting, While follow eyes the steady keel, the vessel grim and daring; But O heart!
asked by Anonymous 
Math
Eddie measured his aquarium using a small fish food box. The box has a base area of 6 inches and a height of 4 inches. Eddie found that the volume of his aquarium is 3,456 cubic inches. How many boxes of fish food could fit in the aquarium?
asked by Mo 
precalc
A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336 calories in her workout. Write an inequality that describes the situation. Let x
asked by Ciara 
Math
Determine whether this sequence is arithmetic or geometric. Find the next three terms. 81, 27, 9, 3, . . . A. arithmetic, 0, –3, –6 B. geometric, 0, –3, –6 C. geometric, 1,1/3 , 1/9 D. The sequence is neither geometric nor arithmetic. Is the answer
asked by Morgan 
MATH
Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day,
asked by Anonymous 
English
I am helping my child and didn't read much of the book Dragonwings, so can you help me to answer what is moon shadows point of view of the opium dens.
asked by David 
Statistics
The melting point of gold is known to be approximately 1,060 degrees centigrade. This is, of course, an average figure, for unavoidable ‘experimental error’ causes more or less variation from this figure whenever the test is actually performed. The
asked by JT 
algebra
A country's population in 1993 was 171 million estimate the population in 2012 using the exponential growth formula round your answer to the nearest million?
asked by lara 
Civics
Which of the following would contribute most to the creation of a strong economy? A. The government limiting loans to agencies like FEMA or small business enterprises B. The lowest possible number of businesses taking out loans to expand operations C. The
asked by Student 
5th grade (math)
In how many different ways can five cent and eight cent stamps be used to make $2.43? In process, show the different combinations of stamps that make $2.43. In solution, tell how many ways you found. Pls help me pls.
asked by ary 
Calc2
A) A ball is dropped from "M" meters above a flat surface. Each time the ball hits the surface after falling a distance, h, it rebounds a distance d, where 0
asked by Jackee 
Accounting
Chef Gourmet, Inc., has assembled the following data pertaining to its two most popular products. Blender Food Processor Direct material $ 21 $ 30 Direct labor 14 42 Manufacturing overhead @ $52 per machine hour 52 104 Cost if purchased from an outside
asked by Sarah 
english
Traditional African marriage is an advantage for men only not women?
asked by lindiwe 
physics
Decide whether each of the following statements are TTrue, or FFalse. A) Velocity antinodes of standing air waves occur at closed ends of tubes. B) Pressure nodes of standing air waves occur at closed ends of tubes. C) Velocity nodes of standing air
asked by Amanda 
Physics
A 1100 kg car collides with a 1400 kg car that was initially at rest at the origin of an xy coordinate system. After the collision, the lighter car moves at 20.0 km/h in a direction of 25 o with respect to the positive x axis. The heavier car moves at
asked by Thomas 
Math question
to prepare for a presentation Pete colored one half of a poster Rebecca colored third of the poster what fraction still needs to be colored
asked by Aaliyah 
math
hamid has 2 qt container of grape juice tell two ways that hamid can divide the grape juice into 5 containers
asked by Anonymous 
Geometry
A construction crew wants to hoist a heavy beam so that it is standing up straight. Th ey tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 408 with the
asked by Nahomi 
statistics
A new national survey found that Americans drink an average of 6 glasses of water daily, instead of the recommended 8. Assuming that the number of glasses of water is approximately normally distributed with a standard deviation of 1.7 glasses, what
asked by MJ 
Chemistry
A galvanic cell is composed of these two halfcells, with the standard reduction potentials shown: Cu2+(aq) + 2 e >Cu(s) +0.34volt Cd2+(aq) + 2 e >Cd(s) 0.40volt What is the standard free energy change for the cell reaction of this galvanic
asked by Zayn 
chemistry
What is the oxidation state of the vanadium atom in VO4−
asked by danny 
calc
a) Estimate the area under the graph of f(x) = 10(sqrt(x)) from x = 0 to x = 4 using four approximating rectangles and right endpoints
asked by Anonymous 
science
A mixture of nitrogen gas, hydrogen gas and ammonia gas reacts by: N2(g) + 3H2(g) = 2NH3(g) If the total pressure in the reaction vessel is 50.0 atm ans the equilibrium mixture contains by volume: N2= 96.143% H2= 0.3506% NH3= 3.506% what is the equilibrium
asked by Marie 
Math
What do you learn from these stage directions? [The faintest trace of a smile on her lips] A. Julia is suddenly very happy. B. Julia knows something mistress don't know. C. Julia has made an important decision. D. Julia is thinking about someone she loves.
asked by Clair 
Physics
A ball rolls off the edge of a 0.75m high lab table with a horizontal speed of 1.50 m/s. Calculate the time that the ball is in flight, calculate the vertical velocity of the ball just before striking the floor, and calculate the horizontal distance(range)
asked by Daniel 
statistics
A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were
asked by leah 
history
how did the use of bronze give shang warriros on advantage over enemies who did not use bronze?
asked by monique 
connexus
anybody go to flvs academy and is 8th grade
asked by Oscar 
Math
Lin earns $12 an hour. She wants to buy a new MP3 player. She is considering models that cost at least $84. Writ an inequality that describes how many hours Lin needs to work to be able to buy the player. Explain the answer.
asked by Damarcus 
chemistry
Consider an electrochemical cell based on the reaction: 2H+(aq) + Sn(s) = Sn2+(aq) + H2(g). Which of the following actions would NOT change the measured cell potential? lowering the pH in the cathode compartment addition of more tin metal to the anode
asked by danny 
Math
1.) In the following problem, write the first five of the terms of the arithmetic sequence. a1=16.5 d=0.25 2.) Find a the correct formula for the an for the arithmetic sequence. a1=1 d=5
asked by Lala 
Chemistry
How much heat is required to boil 90.0g of water at its boiling point?
asked by Chemistry Boiling point 
Algebra
Write a proportion using an unknown value x and the ratio 5:6 then solve it. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra. How many trombones are
asked by Ivy 
math
The surface area of a rectangular prism is 729 square meters. What is the surface area of a similar prism that has edge lengths that are larger by a scale factor of 3
asked by Anonymous 
Please Help!
A viewer examines a work of art in a style he normally does not appreciate. This is an example of what type of action? A) Reluctant Consideration B) Creative Consideration C) Respectful Consideration D) Creative Consideration
asked by Kennabug 
calculus
An object has a constant acceleration of 40 ft/sec^2, an initial velocity of −20 ft/sec, and an initial position of 10 ft. Find the position function, s(t), describing the motion of the object.
asked by Anonymous 
Science
Use the following equation: CO(g) + 2H2 (g)= CH3OH(g) delta H = 21.7 kcal Which direction will the reaction proceed after some of the methanol vapor is condensed and removed from the reaction vessel? please help im getting so confused on the directions of
asked by Mike 
Calculus check
The functions f and g are given by f(x)=sqrt(x^3) and g(x)=162x. Let R be the region bounded by the xaxis and the graphs of f and g. A. Find the area of R. B. The region R from x=0 to x=4 is rotated about the line x=4. Write, but do not evaluate, an
asked by Anonymous 
Chemistry
CaCO3 > CaO + CO2 When 45 grams of calcium carbonate decomposes, how many grams of calcium oxide are produced?
asked by Andrea 
physics
A helicopter is flying with a constant horizontal velocity of 144.2 kmph and is directly above the point A when a loose part begins to fall. The part lands 6.5seconds later at point B on an inclined surface. Determine (a) The distance 'd' between points A
asked by Anonymous 
science
How long does a car take to travel 30 m ,if it accelerates from the rest at a rate of 2.0 m/ s^2
asked by sonam 
chemistry
When the equation for combustion for ethane is balanced using integer coefficients, the ΔH for the reaction = 2834 kJ. How many grams of ethane must be burned in order to heat 277.3 grams of water from 54.0°C to the boiling point and then boil all of it
asked by Riese 
history
what were the contributions of shang dynasties craftspeople?
asked by monique 
Physic
A radioactive element x has half life of 30 days and will decay to become another new element Y.. a) calculate decay constant b) how long it will take for 90% of the no.Of atom in radioisotope x to decay?
asked by Aboi 
Math
Determine whether each sequence is arithmetic of geometric. Find the next three terms. 14,19,24,29.... A. Geometric,34,39,44 B. Arithmetic,32,36,41 C. Arithmetic, 34,39,44 D. This sequence is neither arithmetic or geometric. Is the answer C? Thank you
asked by Morgan 
physics
conducting spherical shells with radiia=10cm and b=30cm are maintained at potentials v(r=b)=0v and v(r=a)=100v.determine v and e in the region between the shells.
asked by mogomotsi 
English
1. Make sure you go to bed early. 2. Make sure you play pingpong with him. 3. Make sure you talk with the person. 4. Make sure you go back home early. 5. Make sure you call your mother. 6. Make sure you send the money to him. 7. Make sure you take a taxi.
asked by rfvv 
analytical geometry
Determine the value of p if A(3;p) is equidistant from the points C(7;1) and D(4;4)
asked by kamogelo 
Socials
I need to label a map of Canada during it's fur trading and explorer times. I cannot seem to map both the Columbia River and the Thompson river as on google images they seem to be located at the same spot... could someone explain and give a link to an
asked by Brenda 
4th grade math
the area of a rectangular rug is 24 square feet. The perimeter is 28 feet. What are the dimensions of the rug?
asked by reid 
Chemistry
How much heat does your body lose when 3.15g of sweat evaporates from your skin at 25 ∘C? (Assume that the sweat is only water.) The heat of vaporization of water at 25 ∘C is 44.0 kJ/mole? Please someone help explain how to set up this problems or how
asked by Chemistry Heat 
math
Determine which ordered pair is not a solution of y=5x4. (10,52) (7,39) (7,31) (8,44) I think it is (7,39)
asked by Lost 
geometry
I have triangle ABC. Bottom is AC with midpoint F. There is a point under F called P with a little backward Z connecting F & P. A segment goes from D (midpoint of AB)to P and from E (midpoint of BC) to P. I got AD=3; BC=8 I have AF=7. I don't know how to
asked by Jeremy 
STATS HELP
Final averages are typically approximately normally distributed with a mean of 72 and a standard deviation of 12.5. Your professor says that the top 8% of the class will receive an A, the next 20% a B, the next 42% a C, the next 18% a D, and the bottom 12%
asked by MT 
Math
Chad buys peanuts into pound bags Siri packages them into bags that hold 56 pounds of peanuts how many 2 pound bags of peanuts should Chad by so that he can fill the 56 pound bags without having anything that's left over
asked by Jen 
math 8th!
point A (2,3) lies on a line with a slope of 2. Describe how to find two points on the line on either side of A.
asked by mae 
math word problems
Q. Marissa had a doctors appointment last Friday. the bill for her visit came to $345. Her family's health insurance will pay 80% of the bill. What is the dollar figure that Marissa's family will have to pay??  A. Do I divide...?
asked by anonymous 
Physical science
A trolley of mass of 20kg rolls down an incline from rest. The top of the incline is 10m above the ground. The trolley experiences a constant frictional force of 25N while it rolls down the incline. The velocity attained by the trolley at the bottom of the
asked by Ryeth 
Math
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 4,8,16,32... A. Arithmetic, 64,128,256 B. Geometric, 64,128,256 C. Geometric, 48,64,80 D. The sequence is neither arithmetic nor geometric sequence. B? Thank you
asked by Morgan 
chemistry
0.947 moles of NaC2H3O2 dissolved in 100 mL solution
asked by chem 
precalc
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4xy+3z = 12 x+4y+6z =32 5x+3y+9z = 20
asked by Ciara 
Chemistry
If E Cu+2 had been chosen as the standard reference electrode and had been assigned a potential of 0.00 V, what would the reduction potential of the hydrogen electrode be relative to it?
asked by Pete 
physics please help
A rock of mass 5kg is pushed over the edge of a cliff which is 200m high 1.ignore air resistance and calculate the speed of the rock at the bottom of the cliff. In reality air resistance cannot be ignored. The rock eventually reaches terminal velocity of
asked by Annah van tonder 
Chemistry
What will be the potential of a cell constructed of a standard hydrogen electrode as one halfcell and a silver wire coated with AgBr dipping into 0.13 M HBr as the other halfcell? The value of Ksp for AgBr is 5.4 × 1013. For the Ag/AgBr electrode,
asked by Jane 
Math.
Which roof is steeper: a roof with a rise of 12 and run of 7 or a roof with a rise of 8 and a run of 4?
asked by Anonymus 
math
Suppose there are 2 pieces of the cake left over,but you don't know how many pieces were in the whole cake. Explain how you could find the number of pieces in the whole cake if Taylor told you 1/6 of the cake was left. You may show your work in a drawing.
asked by molly 
Science
Im having trouble with reading a chemical equation. ( Numbers on the right side of the element are subscripts ) A) 2SO2 + O2 +2H2O > 2H2SO4 1. How many total molecules are represented? ( I m having trouble recognizing when it s a molecule or just an
asked by Angelica 
science
calculate the minimum guage pressure required at the base of building of height 200m for water to reach a closed tank at the of the building at the gauge pressure of 500Kpa
asked by vutlhari 
Math
3.Josh has a huge marble collection. He counts 280 marbles that are red, and he estimates that this is about 10% of his collection. A.Write and solve a proportion to estimate the total number of marbles Josh has.
asked by Francis 
HELP PLEASE
Solve the system of equations using matrices. Use Gaussian elimination with back substitution. x+y+z = 5 xy+3z = 1 4x+y+z = 2
asked by Ciara 
Algebra 1
How many seconds would it take an egg to hit the ground if it's at a 363 height range?
asked by Caly 
math
Imagine a flatbottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0
asked by May 
Chemistry
The amount of CaCO3 that is equivalent to all polyvalent metal ions in one liter of water. what is molarity of 100 ppm Mn^2+? What is the ppm of I^1 in 0.000100 M of BaI2 ? Thank you!
asked by Bear 
precalc
Solve the system of equations using matrices. Use Gaussian elimination with back substitution. x+y+z = 5 xy+3z = 1 4x+y+z = 2
asked by Ciara 
To Jaimichemistry
I responded to your post(the one on ratio of +/ charges) that's way down the list (I think on page 2 or 3 by now). Here is a link. http://www.jiskha.com/display.cgi?id=1429203638
asked by DrBob222 
chemistry
In a titration, 4.1 g of an acid (HX) requires 32.8 mL of 0.74 M NaOH(aq) for complete reaction. What is the molar mass of the acid? Answer in units of g/mol.
asked by Anonymous 
English
Advertising has both advantages and disadvantages.Discuss the statement.
asked by Xalati 
english
Mexico is home to some of the world's finest beaches. Which make the country a popular destination for tourists. fix it plz
asked by whypree 
Physics
I don't know where to even begin... Two equally charged ping pong balls, each having a mass of 5g repel eachother hanging from different strings attached at the same fixed point above. The angle each makes with the vertical is 30 degrees and they are
asked by David 
please help! someone plz
Imagine a flatbottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0
asked by May 
Math
Mia took a test with 60 multiplechoice questions. Her teacher told her she got 88% correct. A.Write and solve a proportion to figure out how many questions she got correct.
asked by Francis 
Strategies for the Independent Learner
When you approach a text, you should A. survey it, using the technique called SQ3R. B. dive right in at the first page and read the assigned section. C. skip over words you don’t know. D. read only the boldface type. 2. The proctored exams for your
asked by Jessica 
English
What can you do to save electricity? 1. I can turn off the lights when I leave my room. 2 I can turn off the lights when I don't use the room. 3.I can turn off the lights when I don't stay in the room. 4. I can turn off the lights of my classroom when we
asked by rfvv 
home economics
Find the marginal and average function for each of the following functions. a). TC=3Q^2+5Q+10, b). TC=30+5Q2Q^2+4Q^3
asked by Junior 
algebra
the isotope has a very short life of 13 halflife days. estimate the percentage of the original amount of the isotope released by the explosion that remains 3 days after the explosion?
asked by bob 
math
show that : cos(360*+x)tan(150*x)sin(360*2x)cos(x)/ sin(90*+x)=cos2x
asked by Ben 
Chemistry
Calculate the number of grams of nitrogen gas, N2, in a container that has a volume of 7.50 L at a pressure of 1200 mm Hg and a temperature of 38.2 degrees Celsius. (R=0.0821 L*atm/mole*K)
asked by James 
Math
6X+5Y=7X+3Y=2(X+6Y1) solve by algebra method
asked by Santosh 
calculus word prob
Two buildings at opposite corners of a parking lot need to be connected by cable that will be buried under ground. It costs $11/ft to lay accross parking lot and $8/ft to lay along the sides. The lot is 300ft by 360 ft rect from pt A to the opposite corner
asked by Anonymous 
W R I T I N G skills
The abbreviation “et al.” is used when A. two authors share the same last name and the same initials. B. a work has more than three authors listed. C. the title of a work must be shortened. D. two or more authors share the same last name
asked by TYondra 
precalc
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. x+4y+6z =32 5x+3y+9z = 20
asked by Ciara 
Jiskha
This isn't a question but I just want to thank everyone who helps others out on here. It's great that you don't answer some people if they don't give their answer. People are here for help, not to cheat. And you helpers actually help them work it out or
asked by Anonymous 
Civics
Suppose the Federal Reserve raises interest rates. Which of the following predicts the most likely results? A. The money supply will decrease, meaning that banks will give fewer loans and prices for goods and services will fall. B. The money supply will
asked by Student 
English
Look at this electricity bill, Andy.  Wow! That's a lot. ==================== In this short dialogue, what is the part of speech of 'a lot'? 1. The electricity bill is a lot. (Is this sentence grammatical? What other expressions can we use instead of 'a
asked by rfvv 
English
What can you do to save electricity? (2) 1. I can unplug the computer and the printer. 2. I can unplug appliances in my room. 3. I can unplug all electronic devices in my room. 4. I can unplug the TVs in the rooms. 5. I can unplug all the electronic
asked by rfvv 
Math
Rate varies inversely as time. Sandy rode her bicycle to Micah's house at a rate of 5 mi/h. She returned home at a rate of 4 mi/h. If the first leg of the trip took 20 minutes how long did the second leg of the trip take
asked by M 
math
Evaluate: cos390*tan150*sin300*cos(30)/sin120*
asked by Angela 
Geometry
An ant starts at a foot of a staircase and crawls to the base of the fourth step. If each step is 8 inches tall and 10 inches wide, how far is the ant from where it began? The answer is 6(square root of 41) or 38.4. I have no clue in how to get to that
asked by Zunie 
English
Advertising has both advantage and disadvantage. What does this statement mean?
asked by Xalati 
Science
Im having trouble with reading a chemical equation. ( Numbers on the right side of the element are subscripts ) A) 2SO2 + O2 +2H2O > 2H2SO4 1. How many total molecules are represented? ( I m having trouble recognizing when it s a molecule or just an
asked by Angelica 
math
given the equation 3x +2y =4, Write another equation that will form a linear system with: one solution, no solution and infinite solution. infinite solution: (3x +2y =) * 3 > 9x +6y =12 y=3/2x+4 9x +6y =12 I think we have to multiple the first
asked by Jay 
math
If you take 13 boxes to postoffice and each weigh 2/3 of pound what is total weight
asked by isabella 
physics
A bicycle tire is 82 inches across and has a diameter of 26 inches.
asked by crystal 
Math
Determine whether this sequence is arithmetic or geometric. Find the next three terms. 4. 3, 12, 21, 30, .... A.40, 50, 60 B.38, 46, 54 C.39, 48, 57 D.36, 32, 39 A? Thank you
asked by Morgan 
economic
Find the marginal and average function for each of the following function. TC=3Q^2 5Q 10
asked by Junior 
Math
Can you explain why the scatter plot shows a negative Z value when the Histogram starts at zero.
asked by Scatter graph question 
calc(very urgent)
Imagine a flatbottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0
asked by May 
chemistry
25.0 ml of 15% NH4NO3 solution is diluted to 300.0 ml. What is the concentration of the diluted solution? .15% x 25=3.75ml Do I divide by 300ml and that's my answer?
asked by Claire 
Intermidiate Algebra
I need someone to please help show me how to simplify radicals. 27 2/3 ____ 27 1/3
asked by Maxine 
BIO HELP PLEASE!!!
explain why lysogenic conversion poses a threat to human health
asked by Mai 
physics
A box is suspended by a steel wire via a frictionless pulley The wire has a mass per length of µ = 24.5 × 10 − 3 kg/m. The box is so heavy and the wire so thin that the mass of the wire does not influence the wire tension. The horizontal part of the
asked by Nick 
Civics
Which of the following would contribute most to the creation of a strong economy? A. The government limiting loans to agencies like FEMA or small business enterprises B. The lowest possible number of businesses taking out loans to expand operations C. The
asked by Student 
math
If you have a twelve gallon bucket, a seven gallon bucket, and a six gallon bucket, how can you get exactly nine gallons into one bucket
asked by Bob 
Project help please!!
I have to come up with a product (such as soap, face cream, shampoo, cleaning spray, etc) and make a commercial for it. and I have to make up a name for it and the stuff that's found in it. I can't think of any products, I was thinking a shampoo commercial
asked by sara 
Algebra
5. The local soccer team won the championship a several years ago, and since then, ticket prices have been increasing $20 per year. The year they won the championship, tickets were $50. Write a recursive formula for a sequence that will model ticket
asked by Sandra 
writtig skills
Citation must be provided for A. wellknown quotations. B. words and ideas borrowed from another author. C. common knowledge. D. familiar proverbs I choose B .
asked by TYondra 
Math
How to sketch ven diagram with 3 events
asked by Aboi 
Science
I need help with these question please. 1. how can you renewable heating & cooling? 2. how can you renewable hot water? 3. how can you renewable electricity?
asked by Priscilla 
precalc
Solve the system of equations using matrices. Use Gaussian elimination with back substitution. x+y+z = 5 xy+3z = 1 4x+y+z = 2
asked by Ciara 
precalculus
find a hyperbola equation with vertices (o,+4) and passes through the point (3,5)
asked by JK 
Algebra
When Will the dependent variable in the equation y= the square root of x+4(end of square root)3 equal or exceed 4?
asked by Algebra Help 
MATH HELP
What number comes next in the Fibonacci sequence: 0, 1, 1, 2, 3, 5 A)5 B)7 C)8 D)13 IS it b or c
asked by Oscar 
English
1. Make sure you unplug the TV when you go out. 2. Make sure that you unplug the TV when you go out. 3. Make sure you should unplug the TV when you go out. 4. Make sure you unplug the TV before you go out. ========================== Are they all
asked by rfvv 
math
show that : cos(360*+x)tan(180*x)sin(360*2x)cos(x) divided by sin(90*+x)=cos2x
asked by Ben 
calc
The department of transportation has proposed a new 7mile stretch of highway. The elevation of the highway x miles along the path is given by E(x)=.004 (x^48x^3)+2. Where is the steepest point
asked by Anonymous 
safety
MEGA ESSAY ON FIRE SAFETY IN EASY WORDS
asked by avinav kumar chourasia 
math
LeanNE walks at an average speed of 3 1/3 mph. How far does she walk in 2hrs 15 minutes? 10/3 × 9/4 == 90/12 would equal 7 1/2 miles
asked by Michael 
math word problem
You are in a car. The car begins your journey by traveling 3 miles south in a straight path. The car then travels 9 miles east in a straight path and then turns and travels another 9 miles south in a straight path to end the journey. What is the
asked by anna 
exponential equations
Jen made an initial investment of $1000 into a TBill account. After 2 years, her investment totaled $1 175. Calculate the rate of appreciation, r, of the investment. Give answer to 2 decimal places. 1.175  = 1 1000  1 2
asked by Anonymous 
patterson
A dinner table has a radius of 4 inches.what is the plates area.using 3.14
asked by timiya 
Chemistry
If you mix 20.0mL of a 3.0M solution with 30mL of a 5.00M solution, determine the concentration in molarity of the new solution.
asked by Chris 
paragraph
i need help because i have to write about space exploration can you type your paragraph on here please
asked by Bryce 
maths lit , life sciences, business studies and economics
what can i be with these subjects please people i need help
asked by juskah 
College/education class
Where can I find examples of a formative assesment a summative assessment a formative evaluation and a summative evaluation. And can you tell me what the difference is between the assessments and the evaluations. From what I understand in my text,
asked by Cathy 
science
An increase in temperature will create what type of shift in the following equation: 2SO3 = 2SO2+ O2 delta H = +197 kJ/mol? Wouldn't it be a shift right because there is heat involved?
asked by Mike 
Microbiology
I have an unknown culture that began as a yellow broth on Day 1. However, 18 hours later, after incubation, the broth turned pink. Any idea of what organism(s) this could be?
asked by Carrie 
Science
What volume of aluminium has the same number of atoms as 8.0cm^3 of mercury?
asked by Matt 
chemistry
Did I round to the correct number of Sig figs? 18.0/83 x 100= 22% 15.87/149.87x 100= 11.3%
asked by Tim 
Math
The mass of a given object varies inversely as the acceleration of the object. A cart with a mass of 40 g has an accelerationo 2.5 m/s^2. What is the acceleration of a 50 g cart?
asked by M 
Math 222
Using the Rules of Exponents. Please show me how to simplify each expression. 27 2/3 ____ 27 1/3
asked by Maxine 
Calculus check and help
Let R be the region bounded by the curves y=lnx^2 and y=x^24 to the right of the yaxis. A. Find the area of R. B. Find the folume geneated when R is rotated about the line y=4. C. Write, but do not evaluate the integral expression that gives the volume
asked by Anonymous 
MATH 222
I need help with solving expressions with exponents (a 1/2 b )1/2 (ab 1/2)
asked by Maxine 
Ap Calculus
How do I find the following volumes formed by rotating the region bounded by: y=x^2, x^2+y^2=2, about the line y=2(set up only using dish or washer method)
asked by Kaylea 
Ap Calculus
Find the following volumes formed by rotating the region bounded by: y=x^2, x^2+y^2=2 (set up using shell method)
asked by Kaylea 
Math 222
Please I need help with this (a 1/2 b )1/2 (ab 1/2)
asked by Maxine 
Civics
Suppose the Federal Reserve raises interest rates. Which of the following predicts the most likely results? A. The money supply will decrease, meaning that banks will give fewer loans and prices for goods and services will fall. B. The money supply will
asked by Student 
MATH 222
I realized that I was typing the problems incorrectly. So here is the correct problem, 27^2/3 ____________ 27 ^1/3
asked by Maxine 
Science
if a 1 kg mass is placed on top of the input piston what is the largest mass that the output piston
asked by Derrick 
geometry
figure of kite top pointed left. Tail is point E. Segment from AB perpendicular to CD. Top side of kite is AC, bottom side is CB. I figured it ==== AC 9y6 = 7y; I got 3 for y. So, C = 21; for (x) I got 5x+18=5x + 15 (x) = 3. So AD IS 9. AE is 5x+6y=
asked by miranda 
math
6X+5Y=7X+3Y=2(X+6Y1)
asked by Santosh 
Physic
A newly prepared radioisotope has activity 3.7x10^11 Bq. After 4 hours, its activity is reduced to 2.96x10^11.calculate a) decay constant b) its half life
asked by Aboi 
Biology
If gametes have only one copy of a chromosome, then do egg cells have only an X chromosome?
asked by Anonymous 
Math
1.A restaurant surveys 60 of its customers about their new menu. 48 of the customers that take the survey prefer the new menu. A.Which value is unknown in this problem: the part, percent, or whole? B.Write and solve the proportion to find the percent of
asked by Francis 
Math
A frequency, F, varies inversely as wavelength, w. The constant of variation is speed, S. Write a formula to express this relationship
asked by M 
math
I need the answers really quick before my time is out HELP PLZZ 3. determine which ordered pair is a solution of y = 2x – 3? A.(2,7) B.(0,3) c.(4,11) d.(5,7) 4.on which of the following lines does (7,1) lie? A. y5x=4 b. y=x10 c. y=4x+3 D. y=x=8
asked by IhateMath