Questions Asked on
April 30, 2013

Chemistry II
Arrange the following 0.10M solutions in order of increasing pH: a. Nacl b. NH4CL C. HCL D. NaCH3CO2 e. KOH
asked by Liz 
english
Click on the box to choose whether each sentence restates the key idea expressed in the key sentence. Key Idea: When hot weather arrives and the nation takes to the outdoors, mishaps multiply. Drowning is the fourth most frequent cause of accidental death
asked by Perla 
history
1. For participating countries, NAFTA called for a challenge to U.S. economic leadership. the gradual removal of trade restrictions. the development of a single currency. *a removal of environmental controls.
asked by Anonymous 
algebra
What happened to Mr. Meter when Mrs. Meter mother flew in for a visit?
asked by Anonymous 
chemistry: please check answers.
1. How many valence electrons does a carbon atom have? A) 1 B) 2 C) 3 D) 4
asked by Anonymous 
physics
The figure shows a uniform beam of mass m pivoted at its lower end, with a horizontal spring attached between its top end and a vertical wall. The beam makes an angle è with the horizontal. (a) Find expression for the distance d the spring is stretched
asked by annetee 
4 grade math
gina ate 1/6 of an apple pie. Greg ate 1/2 of the same apple pie. how much of the apple pie was left
asked by marsha 
College chemistry
The pH of blood is 7.4 and that of saliva is 6.4. what is the difference in pH between these two solutions? How much more Hydronium ion (H3O+) is in the saliva than in the blood. I need a detailed answer with the formulas if you can. I have a hard time
asked by Liz 
Physics
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 250 J/s. The energy is transferred a distance of 1.7 x 103 m through a body whose surface area is 1.8 m2. Assuming that the thermal conductivity is that
asked by Tim 
english
Choose the correct form of the possessive for the bolded word in the following sentence: "A YEARS worth of hard work has finally paid off.” year years years' *year's Thank You.
asked by Anonymous 
History
4. U.S. military intervention failed to end a civil war in *Haiti. Somalia. Kosovo. Palestine.
asked by Anonymous 
Math
A bacterial culture starts with 3000 bacteria and increases to 48,000 after 3 hours, find the doubling time:
asked by Anonymous 
Statistics
In a sample of 77 widgets, 6 were defective. How many defective widgets would you expect in a sample of 616 widgets?
asked by Lenore 
Statistics
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: 0.06; confidence level 90% ^p and ^q unknown n= (round up to the nearest integer)
asked by Rob 
physics
Ultraviolet light is typically divided into three categories. UVA, with wavelengths between 400 and 320 , has been linked with malignant melanomas. UVB radiation, which is the primary cause of sunburn and other skin cancers, has wavelengths between 320
asked by Anonymous 
math
joel walked 2/5 of a mile to the store. 3/10 of a mile to the library,and 1/20 of a mile to the post office. how far did he walk
asked by Anonymous 
Stats
The probability that a person has blue eyes is 16%. Three unrelated people are selected at random. a. Find the probability that all three have blue eyes: b. Find the probability that none of the three have blue eyes c. Find the probability that one of the
asked by Dave 
Chemistry
Chloroform (CHCL3) has a normal boiling point of 61 'C and an enthalpy of vaporization of 29.24 kJ/mol. What is the value of delta Gvap (in kJ) at 61'C for chloroform?
asked by Chloe 
Math
CosA+cosBcosC=4COSA/2 cosB/2 SINC/21
asked by Hansika 
Chemistry
Use the data from this table of thermodynamic properties to calculate the maximum amount of work that can be obtained from the combustion of 1.00 moles of ethane, CH3CH3(g), at 25 °C and standard conditions. I absolutely have no idea what to do, please
asked by Dee 
eco
Good X and good Y are substitutes. If the price of good Y increases, then the
asked by Anonymous 
chem
Chromium(III) chloride(aq) + potassium sulfide(aq) what are the products of this reaction
asked by sarah 
Math
Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.
asked by Allison 
Math
Order each set of integers from least to greatest 1.2,3,0,1,1 2,1,0,1,3 8.3,3,2,1,1 3,2,1,1,3 9.5,7,2,1,9 7,2,1,5,9 10.2,1,5,5,0 5,2,0,1,5
asked by Jerald 
History
4. U.S. military intervention failed to end a civil war in *Haiti. Somalia. Kosovo. Palestine. Thank You.
asked by Anonymous 
Chemistry Help
How many moles of butane do we need to produce 10 moles of CO2 by reaction with oxygen? I think the balanced equation is 2 C4H10 + 13 O2 > 8 CO2 + 10 H2O
asked by Timofey 
geometry
The medial triangle of a triangle ABC is the triangle whose vertices are located at the midpoints of the sides AB, AC, and BC of triangle ABC. From an arbitrary point O that is not a vertex of triangle ABC, you may take it as a given fact that the location
asked by denise 
Chemistry
If 20 grams of sulfur reacts with an excess of oxygen, what volume of the product SO2 would be collected at 108.5 kPa and 15 degrees Celseius?
asked by Christina 
Math
17.Which roller coaster has the greatest lift height Top Thrill Dragster 18.What is the median lift height for the roller coasters lifted? Round to the nearest tenth. Not sure for this one 19.Arrange the given roller coasters from least to greatest lift
asked by Jerald 
physics
what will the volume of a gas at 309K if its volume at 215K is 3.42 L? Assume the pressure is constant
asked by frank 
Chemistry
Calculate the solubility of CuSO4 5H2O at 0 C in grams of solute per 100 g water.
asked by Breanna 
4th grade math
So far John has run 1/4 of the way to school and walked 3/8 of the way. what fraction of the distance to school does John have left.
asked by marsha 
Chemistry
I am having trouble with this equation and calculating the enthalpy of formation. 2 NaHCO3 (s) > Na2CO3 (s) + H2O (g) + CO2 (g) delta H129.2kj I get as far as this step and then I don’t know what to do next. delta H= [1*delta H (Na2CO3) + 1* delta
asked by Laura 
history
2. President Clinton sent military troops to Bosnia to bring about peace and distribute food during a famine. stop immigrants from coming to the United States. *bomb Serbian strongholds and enforce peace. stop ethnic cleansing of Muslims and Croats. 3.
asked by Anonymous 
math
you need to make a three dimensional model of a soup can using paper and tape. What 3 dimensional shapes do you need to cut ot make the model?
asked by jill 
Probability & Statistics
Charmaine is looking at the rental car prices for Get You There Rental Car Company. The cost is based on how many miles you plan to drive the rental car. Use the list of rental prices to answer the questions 1 5. Miles Cost 200 $80 600 $120 1000 $160 1400
asked by Annie 
Chemistry
DrBob222, I don't know how to solve this problem either. And yes, this is the question for this problem. I even double check it. Please help. Chloroform (CHCL3) has a normal boiling point of 61 'C and an enthalpy of vaporization of 29.24 kJ/mol. What is
asked by Chloe 
science
A boy is riding a skateboard. Why does the skateboard have the ability to do work? Answer A. because it can slow down B. because it can change direction C. because the force applied by the rider acts in the same direction as the motion of the skateboard D.
asked by Anonymous 
Calculus
A woman at point A on the shore of a circular lake with radius 2.5mi wants to arrive at the point C diametrically opposite A on the other side of the lake in the shortest possible time. She can walk at a rate of 3.25 mi/hr and row at a rate of 2 mi/hr.
asked by Shannon 
Business Math
A Cold Stone Creamery ice cream shop sells sundaes for $3.60 and banana splits for $4.25. The shop sells four times as many sundaes as banana splits. If total sales amounted to $3,730 last weekend, how many banana splits were sold? (Points : 2)
asked by TM 
algebra 2
I NEED HELP WITH, Of the 52 plays attributed to a play wright,15 are comedies,18 are tragedies,and 19 are histories. if one play is selected at random, find the odds against selecting a comedy.
asked by bernie 
math
This week Sage spent. 30 for hot dogs and supplies. he earned 18. did he make money are lose money this week?
asked by asha 
Chemistry
The pK3 of formic acid is 3.75 A)what is the pH of a buffer in which formic acid and sodium formate have equimolar concentration? B)what is the pH of a solution in which the sodium formate is 10M and the formic acid is 1M?
asked by Liz 
geometry
Prove that if angle DAC is 40 degrees and angle ACD is 35 degrees, then angle BDA is 70 degrees. Write a two column proof showing statements and reasons. My teacher said my answer was wrong because BCA cannot equal 40 degrees because lines DA and C are not
asked by alexandria 
Chemistry
Calculate the solubility of CuSO4 5H2O at 0 C in grams of solute per 100 g water.
asked by Breanna 
Chemistry
The balanced equation for the decomposition of sodium bicarbonate is 2 NaHCO3 (s) > Na2CO3 (s) + H2O (g) + CO2 (g)delta H 129.2. Using the enthalpies of formation, calculate the enthalpy of formation of sodium bicarbonate.
asked by Laura 
Chemistry
Consider 18.0 M H2SO4, if you need to make 250.0 mL of a 3.0 M solution of H2SO4, how would you do this? 18.0 M H2SO4 has a density of 1.84g/mL what is the molality of solution? Mass % of H2SO4 in the solution and the mol fraction of H2SO4 and water in the
asked by Marie 
Buisness Math
You are interested in purchasing a widescreen television set at Target. On this type of TV, the ratio of screen width to screen height is 16 to 9. If a certain model you are considering has a screen width of 48 inches, what is the height of the screen (in
asked by Kellie 
Math
The temperature was 56 degrees this morning but dropped one degree per hour through the rest of the day. Use the graph you made for the equation for this problem, to approximate the answer to the following question: What temperature was it 15 hours later,
asked by Desirae 
math
Patrick left home at 4 P.M. on Sunday. He arrived back home 36 hours later. What day and what time was it? I think it is 4 Am on Monday? Is that write or wrong? Please answer and explain.
asked by Anonymous 
Chemistry
A Cu/Cu^2+concentration cell has a voltage of 0.22v at 25 C. The concentration of Cu^2+ in one of the half cells is 1.5x10^3 M. What is the concentrate of Cu^2+ in the other half cell? I think I will have to use Nernst equation, but I am so stuck! please
asked by Amalia 
Math
Movie tickets are $7 for students and $9 for adults. A group of 8 people spent $66 on movie tickets. How many adult tickets were bought?
asked by Peewee 
Eng B
After having lived with her for a year, Chad studied Marilou's eyes across the table, realizing he had never had a clue about what make her tick." This sentence from a hypothetical nevel suggests voice? A. Third person restricted omniscience B. first
asked by Jen 
Math
In a golf math Jesse scored 5 over par Neil scored 3 under par, Felipo scored 2 over par and Dawson scored an even par. Order the players from least to greatest score I don't know how to answer this one because I don't know what par is in golf? Is it a
asked by Jerald 
Statistics
Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n=500, x=350, 90% confidence ?
asked by Rob 
Statistics
A study of 420,048 cell phone users found that 135 of them developed cancer of the brain or nervous system. prior to this study of cell phone use the rate of such cancer was found to be 0.0333% for those not using cell phones. Complete parts (a) and (b) a.
asked by Rob 
Social Studies
Which colonial region had rich farmlands,,Appalachian Highlands,large harbors and bays,and deep wide rivers?
asked by Vannesa 
Math
Order each set of integers from greatest to least 13.8,43,25,12,14,3 43,12,8,3,14,43 14.8,32,55,32,19,3 55,32,3,8,19,32 15.100,89,124,69,52 52,69,89,100,124 16.,6,17,20,15,19,26 26,17,15,6,19,20
asked by Jerald 
america past and present
before 1910 the most popular form of entertainment was what?
asked by ronda 
math
Two rulers are the same length. Ruler A is divided into 357 units while ruler B is divided into 255 units The rulers are placed side by side with the 0 marks lined up and the 375th mark of ruler A aligned with the 255th mark of ruler B. How many total
asked by Marshall 
Calculus
A rancher wants to make an animal pen by fencing in an area of 2500000 square feet in a rectangular field and then divide it up with 5 fences down the middle parallel to one side. The rancher wants to use the shortest total length of fencing possible. If
asked by Lucas 
Analytic Geometry
What is the equation of a circle passing through (4,4) and tangent to the line 2x3y+9=0 at (3,1)?
asked by John 
Physics
Tapered bar with end load The small tapered bar BC has length L=0.1 m and is made of a homogeneous material with Young’s modulus E=10 GPa. The cross sectional area of the bar is slowly varying between A0=160 mm^2 (at B) and A0/2 (at C), as described by
asked by helpless 
MATHS
Mrs.Koh purchased new books for the school library, of which 6 were Mathematics books, 7 were Science books, 10 were Music books, 3 were Art books, and 4 were social studies books. All of these books were different. She picked a book from each subject to
asked by RS 
math
rectangular prism has a volume of 240 ft3. write two possible sets of dimensions for the prism
asked by sam 
science
a simple pendulum of period T has a metal bob which is negative charged. if it is allowed to oscillate in a vertically upward uniform vertically ellectric feild its period will be
asked by aditya jain 
chemistry, stoichiometry
Consider the Balanced Chemical Equation 2N2+6H20>4NH3+3O2 How many moles would be needed to react fully with 0.225 moles of N2?
asked by Katie 
mathematics
the present age of a father and his son are in the ratio 10:3. if the son is 15 years old now, in how many years will the ratio of their age be 2:1?
asked by kola 
Chemistry
For a particular reaction at 195.1 °C, ΔG = 1488.09 kJ/mol, and ΔS = 288.67 J/(mol·K).? Calculate ΔG for this reaction at 20.0 °C. delta G = delta H  (T*delta S) 1488.09 kJ/mol = (delta H)  ((461.8K)*(+288.67 J/(mol x K))*(1 kJ/1000 J)) 1488.09
asked by Dee 
science
Which ore could produce a metal you would like to wear? Why?
asked by Ryan 
Physics
What is the smallest possible value for the angular momentum L of an electron in the n=5 shell? Lmin= 0 kg*m^2/s What is the largest possible value for the angular momentum L of an electron in the n=5 shell? What is the Lmax? Please help I don't get
asked by Leila 
math
Pilar picked 12 apples. She gave 1/4 of the apples to Dwayne, 1/4 of the apples to Murphy, and 1/4 of the apples to kelley. How many apples did each of them get?
asked by Kesha 
Statistics
Assume that a random sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. 95% confidence the sample size is 2096 of which 25%are successes The margin of E= (round to
asked by Rob 
Geometry
Lines p and q are parallel and are intersected by transversal r. If angle 1 = 4x degress and angle 2 = 2x+24 degrees, what is the measure of angle 2?
asked by Joe 
chemistry
Pipette 3 drops of oil into a test tube of water and shake. Describe what takes place and why?  Would it be the oil settles at the top of the water, because the oil is less dense, and its a nonpolar substance, so it doesn't mix with a polar substance
asked by K 
science
A group of wind turbines operates in an open field. Which statement about the wind turbines is true? Answer A. The wind turbines produce movement of air that does work. B. The wind turbines do work by using electricity to produce power. C. The wind
asked by Anonymous 
Math  Intro to Statistics (High School)
The average square footage in an apartment in a town is 1,800 square feet with a standard deviation of 120 square feet. The square footage is normally distributed. You randomly select 10 apartments in the town. What is the probability that the mean will be
asked by Group Stat Lab 
math
8. At TelePower Plus, longdistance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call
asked by cynthia 
Math
1.Melanie, Byron, and Chin are all waiting at the bus stop. Melanie's bus leaves at 10 minutes after noon. Byron's bus leaves at 15 minutes before noon. Chin's bus leaves 5 after noon. Arrange the three according to who leaves the bus stop first. Byron
asked by Jerald 
AP Chemistry
How many moles of butane do we need to produce 10 moles of CO2 by reaction with oxygen? I think the balanced equation is 2 C4H10 + 13 O2 > 8 CO2 + 10 H2O
asked by Timofey 
Eng B
If an author is skillful at representing the point of view and attitudes of a hobo, an nurse, a corporate CEO, and a variety of other diverse characters, the author is demonstrating A. dramatic irony. B. negative capability. C. first person reporting. D.
asked by Jen 
Chemistry
For a solution of 3.3 M H2CO3 (Ka = 4.4 × 107), calculate: (a) [H+] ____?______M (b) pH _____??______ (c) percent ionization ______?______%
asked by Brian 
life orientation
suggest 5 recommendation on how to address the environmental problem within your community on floods
asked by phathutshedzo 
Philosophy
Martin Luther King, “Letter from Birmingham Jail,” draws from the thought of Thomas Aquinas in saying “an unjust law is a human law that is not rooted in eternal and natural law. Any law that uplifts human personality is just. Any law that degrades
asked by Christopher 
Physics
A person is standing outdoors in the shade where the temperature is 22 °C. (a) What is the radiant energy absorbed per second by his head when it is covered with hair? The surface area of the hair (assumed to be flat) is 180 cm2 and its emissivity is
asked by Tim 
mathematics
An equilateral triangle with side length 33 is divided into 332 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit
asked by Sambaran G. 
Eng B
A novel differs from a short story because it A. is more likely to include subplots. B. includes a theme C. is told as a thirdperson narrative. D. comprised rising action, a climax, and falling action. Answer is "A"
asked by Jen 
accounting
Easy Move Company made the following expenditures on one of its delivery trucks:Feb. 4.Replaced transmission at a cost of $4,625.May. 6.Paid $1,615 for installation of a hydraulic lift.Sept. 10.Paid $69 to change the oil and air filter.Prepare the journal
asked by steph 
chemistry
a block of aluminum is placed in 10.0g of water. the initial temperature of the water is 22.0 degrees celcious and its final temperature is 27.0 degrees celcious. what is the amount of heat released by the block of aluminum in calories if it had an initial
asked by rachel 
Maths
An equilateral triangle with side length 33 is divided into 33^2 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit
asked by MAths lover Please Helppppp 
Algebra
Two investments totaling $19,000 produce an annual income of $1560. One investment yields 9% a year, while the other yields 4% per year. How much is invested at each rate?
asked by Markevien 
eng
The President sent the ambassador an invitation to the meeting.
asked by Anonymous 
math
new flat screen TVs flash even faster than older TVs. Since dogs need a flicker frequency rate of 75, DOGTV works as intended only on newer TVs. One type of new Tv flashes 500 frames each second. How many more frames does it flash than an older TV with a
asked by osi 
HELP!!!MATHS!!!
A video rental store offers 436 different movies for rent. The movies are categorized as Comedies, Action Movies, and Dramas. A movie may be in more than one of the categories. If 234 movies are categorized as Comedies, 97 as Action Movies, and 191 as
asked by ianian 
biology
1. The function of the circulatory system is to: A. Deliver oxygen and nutrients to every cell B. facilitate communication between different tissues c. Remove Wastes from tissues d. all of these e.none of these I believe the answer is D all of them
asked by Christopher 
Chemistry
What should be the number of significant figures in the following calculation? It's an error calculation which is absolute value (True value  experimental value) / true value * 100 so it would be: absolute value [601.7  (587)] / 601.7 * 100 Should the
asked by James 
Math
A jar contains 1 blue crayon, 1 green crayon, 1 black crayon, and 1 red crayon. You grab 1 crayon without looking. Find the sample space for this experiment.
asked by George 
Agricultural science
What type of fences can be used?. Draw aa diagram to show the arrangement of poles at coner or where a fence change diirection?.state and explain what records should be kepT for the efficent management of a dairy herd?.
asked by TLOTLO MANANKE 
Probability & Statistics
Charmaine is looking at the rental car prices for Get You There Rental Car Company. The cost is based on how many miles you plan to drive the rental car. Use the list of rental prices to answer the questions 1 5. Miles Cost 200 $80 600 $120 1000 $160 1400
asked by Annie 
Math
Write 1/8 as a decimal
asked by Anonymous 
chemistry
why do different compounds give different retention factors (Rf values) in thin layer chromatography (TLC)
asked by jessica 
Calculus
Find the dimension of a rectangle with perimeter 295 whose area is as large as possible
asked by Allison 
Pharmacy math
Calculate the amount of IV fluid to be added to the volume control chamber Ordered:D5 0.33% NaCl at 66 mL/hr with Fortaz 720 mg every 8 hours to be infused over 40 minutes by volume control set On hand:Fortaz 1g/10 mL
asked by Sherri 
Chemistry
I just to know how to identify the substance that is reduced, the substance that is oxidized, the oxidizing agent and the reducing agent in each reaction. As (s) + ClO3(aq) → H3AsO3 (aq) + HClO(aq) CN(aq) + MnO4(aq) → CNO(aq) + MnO2(s) C2H5OH +
asked by m 
Math
Having trouble figuring out this problem. I'm supposed to write the inequality for this problem. Vijay wans to keep the cost per person of his party under $15. The Party Place charges a flat fee of $250 for an all inclusive party. Let g represent the
asked by Brandi 
Math
How do you simplify [(35)+3✖8]➗4[84➗2(7+1)]
asked by Sig 
algebra 1 help
42(X5)≤4X1 2x+10≤4x1 +2x +2x 4+10≤6x1 +1 +1 4+11≤6x answer is 15 ≤6x
asked by yesica 
Language Arts
In poetry,a word or line can have more than one meaning. "I fumble with the task to no avail." What different ways can you interpret this?
asked by Stephanie 
6th grade grammar please help
I need a good grade in grammar so please check my answers! Identify the object of the preposition in each of the following sentences. 1. Ashley and her father arrived home from work. a. and b . father c. from d. work 2. Ashley’s bedroom was across the
asked by Jade 
Math
Explain why the formula for finding the surface area of a rectangular prism is helpful. Sincerly, Your King, the Blaberdybla :)
asked by King Bla 
english
1. In which sentence do apostrophes serve to indicate both possession and contraction? A. Lady's slippers were under Carol's bed. B. It's Howard's fault. C. I can't say whether it's hers. D. Let's see whom we'll call on next. I think a
asked by no 
chemistry
Is benzophenone soluble in phosphoric acid?
asked by Rose 
Chemistry
At 20 degree celsius, Ka for an unknown monoprotic weak acid is 0.00088. Calculate the Delta G (in kJ/mol) for the reaction of this unknown acid with water. HA(aq) + H2O(l) H3O+(aq) + A(aq)
asked by Chloe 
MAths
Let r1,r2,r3 be the roots of polynomial P(x)=x^3+3x+1. Evaluate the product 3 ∏ (r^2+r +1) k k k=1
asked by ianian 
Physics
Composite bar with end load (two segments) The composite bar BCD in the figure is composed of an inner aluminum cylindrical core of length 2L=2 m and radius R=1 cm and a sleeve of steel of length L=1 m and thickness R=1 cm surrounding the aluminum core in
asked by helpless 
algebra 2
need help with , five hundred raffle tickets are sold for $3.00 each, one prize of $500.00 is to be awarded, Raul purchased one ticket. a)his expected value is b)the fair price of the ticket
asked by bernie 
algebra 2
I need help with this problem please five hundred raffle tickets are sold for $3.00 each,one prize of 500 is to be awarded, Raul purchased one ticket. a) his expected value? b) the fair price of the ticket?
asked by bernie 
Grammar
choose the answer that best describes the pronoun's use the sentence. Grandmother has given the African masks to Brendan and me. A. subject B. predicate nominative C. direct object D. object of a preposition
asked by bubbie 
geometry!!!!
Let A be a subset of T={1,2,…,100} subject to the condition that if 2 distinct elements a and b are in A, then a+b is not in A. What is the maximum value of A, which is the number of elements in A?
asked by roronoa zoro 
physics
A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and
asked by jfchfrhrc 
geometry
Outside of circle Γ, point A is chosen. Tangents AB and AC to Γ are drawn, with B,C on the circumference of Γ. On the extension of AB, D is a point such that B is between A and D, and ∠ADC=25∘. The circumcircle of ADC intersects Γ again at E
asked by flex 
Trigonometry
I need help: If vector u has a magnitude of 4 meters and a direction of 17 degrees and vector v has a magnitude of 6 meters and a direction of 133 degrees. Find the magnitude of the resultant vector of u + 3v.
asked by G0al 
psychology
In order to be useful, a test must be reliable. In other words, it must : performance. a. produce the same results from one time to the next b.predict other criteria of the trait being measured c, measure what it is designed to measure d. compare results
asked by kaye 
math
An eightinch square cake serves six people.how many twelveinch square cakes do you need to provide equivalent servings for eighteen people?
asked by matt 
Help please
Samantha Greene is on the negotiating team for the next teacher's contract. The school board is proposing a 6% increase for each of the next four years. The teachers' counterproposal is 12% this year and 4% for each of the next three years. what is the
asked by ENIS 
life orientation
Three environmental health hazards that cause ill health
asked by prince 
Geometry
Find the ratio for the similar figure. If the volume ratio is 27:512, what is the side ratio?
asked by Anonymous 
Physics
A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and
asked by MAths lover Please Helppppp 
grammar
Is this sentence correct? The show is great but it is much less than expected.
asked by klarmaesen 
business math
A Cold Stone Creamery ice cream shop sells sundaes for $3.60 and banana splits for $4.25. The shop sells four times as many sundaes as banana splits. If total sales amounted to $3,730 last weekend, how many banana splits were sold? (Points : 2)
asked by TM 
Life orientation
Describe the life style desease/behaviour and explain 10 factors that contribute to this disease.
asked by Lindokuhle 
Life orientation
Describe the life style desease/behaviour and explain 10 factors that contribute to this disease.
asked by Lindokuhle 
chemistry
what is the molal concentration of tin in a solution of 5.000g of tin dissolved in 95.00 g of copper?
asked by jeanne 
Math
a 2month note for $4,500 was drawn on July 3 at 8%. If money is worth 9%, find the present value of the note on the day it was made.
asked by Alice 
Math Probability
Super stumped... Help please. The average distance geese fly south in the winter is approximately 380 miles with a standard deviation of 60 miles. Assuming that the distances are normally distributed, find the probability that a randomly selected goose
asked by Patricia Marzetta 
Algebra
Find the horizontal and oblique asymptotes, if any, for the given rational function G(x)=(x^41)/(3x^23x)
asked by lynn 
Grammar
does this sentence contain an unclear antecedent? In the encyclopedia, it says that English has words from many different languages.
asked by bubbie 
math
not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year
asked by sandra 
accounting
The forecast overhead for the current year will be $11,279,512 and that total machine hours will be 160,228 hours. The actual overhead is $7,919,409 and the actual machine hours are 90,509 hours. If the Thomlin Company uses a predetermined overhead rate
asked by linda 
art history
What is the Etruscan influence on Roman, Byzantine and Romanesque visual culture?
asked by kate 
LIFE ORIENTATION
describe the lifestyle disease/behavour and explain 5 factor that contribute to the HIV/AIDS DISEASES
asked by FACTORS 
Math
List all potential rational zeros of 9x^3+6x^229x10
asked by Ashley 
Math
3/8 divided by 12
asked by Shira 
Statistics
Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error: five percentage points; confidence level 90% from a prior study, ^p is estimated by the decimal equivalent 56% n= (Round up to
asked by Rob 
Chemistry
The following thermodynamic data was obtained for an unknown compound. Delta Hvap = 31.3 kj/mol and Delta S Vap= 79.7 kj/mol .Calculate the normal boiling point of this compound in Celcius.. Thank you! Chemistry  DrBob222, Tuesday, April 30, 2013 at
asked by Chloe 
Geometry
Find the ratio for the similar figure. If the area ratio is 4:49, what is the volume ratio?
asked by Anonymous 
geometry and combinatorics
An equilateral triangle with side length 33 is divided into 33^2 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit
asked by sanji 
Math
There are 5 staircases going from thr first to the second floor in school. Find the total number of ways that Andrea can go from the first floor to the second and then return to the first. Thank you
asked by Kiki 
Pharmacy Math
Calculate amount of IV fluid to be added to the volume control chamber. Ordered:D5W at 30 mL/hr for continuous infusion with medication x 60 mg every 6 hours to be infused over 20 minutes by volume control set On hand:Medication x 60 mg/2 ml The book says
asked by Sherri 
Physics Need help plz
An 1900 kg car is traveling with a speed of (22 + .22) m/s. With what maximum accuracy can its position be determined? delta x= in meters Can someone please help me out I am lost on this on...Thank you
asked by Leila 
mathematics
Let A be a subset of T={1,2,…,100} subject to the condition that if 2 distinct elements a and b are in A, then a+b is not in A. What is the maximum value of A, which is the number of elements in A?
asked by Mathsfreak 
chemistry
A gas is stored in a 3.5L container at 15 degrees celsius and 655mmHg. Calculate the number of moles of the gas in the container
asked by Anonymous 
Chemistry
1. Chemists define pH as "the negative logarithm of the concentration of protons". In mathematical terms: pH =  log [H+] What is the pH of a solution whose [H+] is 0.0007 M? i got it as 7.0 i know it is wrong 2. What is the [H+] in a solution having a pOH
asked by Lynn 
Integer
Is 32 or 27 greater than 24? I say, 32. Right?
asked by Moby 
Math
Tenencia is thinking of a number with 8 place values.The digit in The thousand place is 5.The digits in The hundred thousands and hundreds place are both an odd number greater than 7. The digit in each other place value is one less than The digit in The
asked by Gaby 
Math
Find the sum of all integers c, such that for some integers a and b satisfying a
asked by Pete 
Math
A national study reports that 20% of college freshman have GPA above 3.5. We wish to determine if the corresponding proportion is higher at a local university. To conduct the test we select a random sample of 100 freshmen and determine that 26 of them have
asked by Kathy 
Microbiology
How can I isolate & identify a bacterial infection acquired on another planet that is unknown to me?
asked by Stephanie 
finnce
Jamal currently earns $20,000 a year in gross wages. On January 1, he is due to receive a 2% COLA. What will his gross income be after the COLA takes effect
asked by Anonymous 
Math
a square is 4 units on each side. Two of the corners of the square are at points by (1, 2) and (3,2). Name the ordered pairs for the other two corners
asked by Anonymous 
life orientation
Ways in which one can take responsibility to provide safe and healthy living environment?
asked by tay 
Math (Geometry)
ABCD is a rectangle with AC=20 and AB=2BC. What is the area of rectangle ABCD?
asked by Arnau 
Physics
Two runners have a race. The first runner decides to run with his full speed v₁=9 m/s over the 250 meters of the race and then slows to v₂=7 m/s for the rest, since he's tired. The second runner wants to save energy, so he runs with v₃=8 m/s for the
asked by Arnau 
Maths
AB is a 12 metre flagpole on top of a building. Given angle QPB=56 degree 37' and angle QPA=43 degree 19',find the distance of PB.
asked by Shane 
American Government
Proportional representation systems like those in Western Europe encourage the formation of smaller parties by enabling parties to: A. win legislative seats even though they do not receive a majority of votes in elections. B. receive campaign funds from
asked by joe 
math
What is 400=y+260
asked by lol 
.MATH.
If about 3000 of every recall model of a vehicle actually need rework, what is the probability that your (recalled) car will not need a rework if there are 120000 cars of that model sold, and if 1000 of them are already off the road (this is a monkey
asked by Alice 
Maths
What is the sum of all possible real values of x that satisfies the equation 25[x(log5 x)]=x^3.
asked by ianian 
grammar
When are you going to use "much less than" when comparing?
asked by klarmaesen 
Science
gravitational forces are be acted on a space center what other data need to show the forces adirection of the opposite force bmagnitute of the downward force graviatational forrces are being acted on a space station i think what other of the two data are
asked by hh 
Biology
1. Bone is formed from the deposition of __________ into connective tissue A. Calcium and Phosphate B.Sodium and potassium C. potassium and calcium D. Sodium and Phosphate E Actin and myosin 2. The major disadvantage of exoskeletons is A. Animal outgrows
asked by Christopher 
Grammar
1.Painting the door in the storage area were Lizzie and ______ A.she B.her C.them D.me i think it's A but i'm not sure. :(
asked by bubbie 
Histroy
If you were a reformminded person who,above all,loathed the social promblems associated with alcohol you would have been especially sympathetic to the
asked by Tina Boswell 
Biology
Which of these systems is involved in connecting one body system with another? A. Integumentary B.Muscular C. Immune D. Digestive E. Endocrine I think its E
asked by Christopher 
chemistry
can you convert the grams to liters of water using the conversion factor of 22.4 liters in one mole?
asked by lauren 
3rd grade math
draw a box that has 3 valumes of 12 cubic units in 3 different ways
asked by nikki 
MAths
What is the sum of all possible real values of x that satisfies the equation x x^log5 =x^3/25.
asked by ianian 
skills for success
Jenny has a part time job and her net takehome income is $2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries.
asked by Anonymous 
1001040 M/J LANG ARTS 2  T2 Unit 2: Is Progress
What is the main reason to consider thinning forests?
asked by Anonymous 
chemistry
What is the final pressure gas sample that is subjected to a temperature change from 22.0 C to 30.0 C and a volume change from 85.4 L to 37.0 L with an initial pressure 105 kPa?
asked by SK 
Chemistry 1
if 0.500mol of argon gas occupies 2.10L at 735mmHg, what is the temperature if degrees Celsius
asked by Me 
4th grade math
Thank you every much. Have a great night.
asked by marsha 
math
of the pupils in a class, 12 like both pizza and chicken, 19 like pizza and 3 like neither pizza nor chicken, how many like chicken?
asked by janae 
Apollo 13!! HELP
i need an outline for the reaserch we are doing in class called, "Apollo 13? HELP!!
asked by Somer 
Maths
We are given that log10 2
asked by MAths lover Please Helppppp 
chemistry
if 500 g of mgcl2 are produced in the above reaction how many l of h2 are produced
asked by Haley 
algebra 2
need help with The Chin's family room measures 24 ft by 30 ft. they are covering a floor with square tiles that measure 1 foot on a side and cost $0.73 how much will they spend on tile?
asked by bernie 
math
A quasiscientific study was done to find some link to autism. In the study, it was found that children who had an autistic tendency were delivered after an average of about 30 hour labor. They all weighed an average of 10 pounds. The study was done in a
asked by Michael 
Math
Cepheid variables are vital for measuring the distances of relatively nearby galaxies. What is the probability of finding a cepheid variable star? State ALL your assumptions
asked by Karla 
math
is the formula "y=x to the 7th power" an example of a proportional relationship?
asked by laurie 
Math
A piece of land 1.2 km by 3.6 km is for sale at $1500 per hectare. What is the price of the land?
asked by Shanana 
chemistry
A gas is stored in a 3.5L container at 15 degrees celsius and 655mmHg. Calculate the number of moles of the gas in the container
asked by Anonymous 
Biology Raynaud's Disease
Hey im doing a powerpoint presentation on this raynaud's disease, and could someone please give me some good sites to go through to get info abt this and please mention anything you know about the raynaud's disease as well, thanks.
asked by Shreya 
books
In the book In the Garden of Beasts, Chapter 18, it asks, At this point in Hitler’s rise to power no military action was taken to halt his ascension. What would have been the most likely outcome of preemptive military action?
asked by lizzy 
Java
Write a method that will take in a String parameter and return true if the first 2 chars in the string also appear at the end of the string, such as with the word "edited", which starts and ends with 'e' and 'd'.
asked by Aɴᴏɴʏᴍᴏᴜs 
Math
Write < or > to make a true sentence 1.18 23 < 2.9 1 < 3.3 5 > 4.8 2 > 5.6 3 > 6.0 8 < 7.6 7 > 8.23 16
asked by Jerald 
7th Grade Math
If a diameter of a circle (which is 18 inches) is tripled, can the expression 9 (254.34 in square) be used to find the new circle? I know the answer is yes but I can't figure out how you work it! I come with 9(1,107.36 in square) but apparently that is not
asked by Daniel 
math
what is the value of the expression 2b + 4 when b=1/2
asked by kamya 
Math
The area of a rectangular garden is 110 square meters. The width is 6 meters loner than onehalf of the length. Find the length and the width using area=lengthxwidth
asked by Amber 
Precalc
For #13, an angle of rotation and ( x prime, y prime) coordinates are given. find the (x,y) coordinates? 1. angle= 30 degress, ( root 3, 2) 2. angle= 60 degrees, (1,1) 3. angle = 45 degrees, ( root 2,  root2)
asked by Rebekah 
business math
Translate the following statement into an equation: A number (X) decreased by 4 is 25. (Points : 2)
asked by TM 
spanish
how do you find the direct object in a sentcens?
asked by Anonymous 
math
he purchased a total of 120 shares at a price of 3018 what was the unit price per share (4.2d)
asked by elizabeth 
ged
Tuan rode in a 40m mile bike race what fraction of the race had tuan ridden when completed 25 miles?
asked by clarence 
algebra 1 help
3(2x5)=74(x6) 6x+15= 4x+24 +4x +4x _____ ______ 2+15= 7+24 what am i doing wrong? is it the 7
asked by yesica 
PreCalculus
Find the inverse function for the function f(x)=2^(x)+1/2^(x)1 You will need to use some properties of logarithmic functions to find the inverse of this particular function.
asked by Thomas 
chemistry
which of these would have the highest melting point due to the trong intermolecular forces, CH2 NH2 H2 CO2?
asked by jay 
English
I have to write an analysis of Arthur Millers involvement in the Movie and in the Play of the Crucible. How is Millers involvement in the Movie? I can not find any examples. Thanks
asked by Jessica 
Agricultural science
Outline and explain the objectives of fencing a farmland
asked by TLOTLO MANANKE 
life orientation
5 ways in which the human or environmental problem impact on the community
asked by nqo 
Interger confusion
What explains how to model 5+ 3 on a number line? Is it start at zero tehn move left five times then right three times to end at 2 ?
asked by Moby 
Math
Solve for X: 2x+5 x6 2 = 2
asked by Anonymous 
maths
If the expression (x^2+2x−1)^8 is completely expanded, what is the sum of the coefficients of the terms with even powers of x? Details and assumptions 0 is an even number.
asked by ianian 
science
what 2 forces act on a person jumping on a trampoline alift and tension btension and gravity cfriction and drag dcompression and friction right answr b
asked by hh 
chemistry university
In this experiment you will be placing solid CO2 into a 10 ml tube. The tubes are not completely gastight, but what if they were? What would be the pressure inside the tube in atm, after all the dry ice had vapourised, if 3.72 g of solid CO2 was
asked by angela 
life orientation
Provide 5 ways in which you critically discuss how lifestyle diseasesimpact on the teenager 3 May 2013 please help
asked by samkelisiwe 
Financial Accounting
Use the following information to answer multiplechoice questions 5 and 6. At the end of the year, before any adjustments are made, the accounting records for Sutton Company show a balance of $100,000 in accounts receivable. The allowance for uncollectible
asked by Anonymous 
physics
A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and
asked by jfchfrhrc 
English
This is my sentence... When a single subject is being connected to a plural subject using “or” then the verb is plural. Would you put a comma inside the quotes of the word "or" or outside? Thanks!
asked by Serena 
math
Influential observation and Outliers: Are we just splitting hair? If so, explain. If not, how then do you differentiate between an influential observation and an outlier.
asked by Steve 
math
How do I find 8/3 of 48?
asked by Celest 
books
In the book "In the Garden of Beasts", chapter 16 it asks What did Klemperer notice about Hitler’s use of language? What was the purpose of the Editorial Law?
asked by lizzy 
acollege algebra
If f(x)=2(x3)^25 find the vertex, the x intercepts the y intercepts sketch the graph, choose two points on the graph and find the rate of change
asked by smc 
books
I'm sorry to ask again but the answer has to come from Chapter 18 of the book "In the Garden on Beasts" And the question is At this point in Hitler’s rise to power no military action was taken to halt his ascension. What would have been the most likely
asked by lizzy 
Algebra II
Find the inverse funciton: g(x) = 3x^4, x > 0
asked by Piggy 
limits
evaluate the limit as x approaches 0 (1/x/1/sins)
asked by sol 
maths
Three roots of f(x)=x^4−2x^3+ax^2+bx+c are −5, −3 and 4. What is the value of a+b+c?
asked by ianian 
Math (Algebra)
How many ordered pairs of integers (x,y) are there that satisfy x+y ≤ 10?
asked by Arnau 
science
gravitational forces are be acted on a space center what other data need to show the forces adirection of the opposite force bmagnitute of the downward force rigth answer: b
asked by hh 
life orientation
Provide five ways in which you critically discuss how life style disease impact on teenagers?
asked by xolani 
Math
Arrange these letters trngiee
asked by Jerald 
Calculus I
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y=7x^5 y=7x, x is greater than or equal to 0
asked by Anonymous 
math
not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year
asked by sandra 
science
why could dna be classified as a polymer Ahas a chemical structure similar to salt crystals bmade of repeating pattern of smaller molecules ca solid found in all living matter right answer b
asked by hh 
grade 12 chemistry
explain the concept of a “stock solution” and standard solutions as if you were explaining it to a friend who is not studying chemistry.
asked by michael 
Maths
We are given that log102
asked by MAths lover Please Helppppp 
Math
Put < or > to make a true statement 1.2 0 < 2.3 3 > 3.9 8 < 4.8 3 < 5.11 3 > 6.2 10
asked by Jerald 
math theory
write a rational and irrational number between 1.12301 and 1.1230101.
asked by jacqueline 
math
what is 9/2  1/2
asked by Alex 
math solve for w
(w+9)*4=27+4
asked by Sykuta 
math
what is 9/2  1/2
asked by Alex