Questions Asked on
November 25, 2013

Math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = 3x2 + 4x + 3. answers: {–1.00, 1.33} {3, 4} {–1.33, –1.00} {–0.54, 1.87} Please advise
asked by Maria 
Math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = 9x2 + 3x + 5. which one is correct: {0.93, –0.60} {9, 3} {–0.33, –0.56} {–1.80, 0.60}
asked by Maria 
Math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = 2x2 + 2x + 6 answers available, which one is correct? {–1.30, 2.30} {2, 2} {–1.00, –3.00} {–0.33, 0.33}
asked by Maria 
math
Determine the equation of g(x) that results from translating the function f(x) = x2 + 3 upward 14 units. which is the correct answrr: g(x) = (x + 17)2 g(x) = (x + 14)2 + 3 g(x) = x2  11 g(x) = x2 + 17
asked by Maria 
Math Word Problem
A. The number of people working on a certain job varies inversely as the number of days needed to finsih the job. If it takes 10 carpenters to finish a house in 8 days, in how many days will 4 carpenters finish it? B. The length of a rectangle with a
asked by Jean Marie 
Finance
Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas
asked by Serenity1 
Magnetic effect
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +xdirection (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region
asked by Mac URGENT Please 
math
The Canadian $2 coin has a copper centre surrounded by a ring of nickel. The diameter of the coin is 2.8 cm. The area of the copper centre is 2.0 cm2. What is the area of the nickel ring?
asked by Carrie 
science
For the reaction mc0111.jpg at 472°C equilibrium is established when [H2] =0.0200M, [N2] = 0.0100M and [NH3] = 5.37 x 108M. What is the equilibrium constant for this reaction
asked by mike 
biology
Gene expression regulation by methylation of the cytosines in a promoter would be considered : Select one: a. Transcriptional regulation. b. Posttranscriptional regulation. c. Posttranslational regulation. d. Translational regulation.
asked by bobby 
biology
Which of the following is NOT true of transcription / translation processes in both bacteria and eukaryotes? Select one: a. RNA polymerase reads the template DNA strand to produce the complementary mRNA transcript. b. Translation of a polypeptide can occur
asked by bobby 
biology
An individual with the genetic condition cystic fibrosis has CFTR protein with the amino acid histidine (at position 482), where the normal CFTR protein has arginine. (No other changes are observed in the protein.) This is the result of a _________
asked by bobby 
waste water treatment
Wastewater from a small town is treated in a trickling filter which is preceeded by a screen, sandremoval and primary clarification. The maximum hydraulic capacity, or peak flow, of the treatment plant is 1,500 m3/h. The dry weather flow (Qdwf) amounts
asked by Nilu 
geometry
Given: ABC,/ AD bisects
asked by loveofnursing 
economics
Economies of scale means that a group physician practice is likely to return more income to physicians than would an individual practice. True or false?
asked by Anonymous 
Economics
The federal government, through its control over the American Medical Association, held the physician supply constant for most of the 20th century. True or false?
asked by Anonymous 
development economics
“Dependency” theorists believe that moving surplus labor from agriculture to industry where that labor will earn profits that can be reinvested for further growth is the key to overall economic growth and development. Is this statement true or false?
asked by Gidoff 
English
1. Don't worry. We still have a little money left. 2. Don't worry. We still have a little money which is left. (Does #1 mean #2? Does 'left' modify 'money'?)
asked by rfvv 
physics
if a 30 newton force is required to accelerate a 2kg object at 10m/s2, over a level floor, what is the magnitude of the frictional force acting on the object
asked by bobthebuilder 
science
With respect to treating an acute myocardial infarction: Identify a drug or treatment which has the effects listed 1)Activates plasminogen to lyse the thrombus. a)Aspirin b)Warfarin c)Nitrate d)Morphine e)Tenectaplase f)oxygen 2)Helps to keep ischaemic
asked by centya???? 
Analytic Geometry(Math)
a person 6 ft. tall s standing near a street light so that he is 4/10 of the distance from the pole to the tip of his shadow. How high above the ground is the light bulb? if the person's head is exactly 5ft from the light bulb. how far is the person from
asked by Megs 
Calculus
Calculate 20 terms for the sequence P0=.5 and k=1.8, P0=.5 and k=2.8, and P0=.3 and k=1.8. Does the limit depend on the choice of P0? Does it depend on the choice of k?
asked by Robin 
Statistics
n two separate studies, the actual difference between the means of a treated group and an untreated group is 3 points. However, in one study, the ÏƒM1M2 is very large and so the 3 points is not found to be significant. In the other study, the ÏƒM1M2
asked by Mikos 
Math URGENT PLEASE
Please Help, The last question has to be done by midnight. A chevy Bel Air, a classic car today, cost $2,400.0 new in mid1963. How much would that be in 2012 dollar.
asked by Tracy 
Englishj
MOONACHIE, NEW JERSEY (How do we pronounce 'Moonachie'? Do we stress the first syllable or the second syllable?)
asked by rfvv 
MATH HELP PLEASE
CPI FOR 2013 AND FOR 5 YEARS FORM NOW 2018. PROJECT THE PRICE 5 YEARS FROM NOW ON DD COFFE @ $2.04/PER CUP IN 2013. WHAT WILL IT BE IN 2018?
asked by th 
English
1. On the hill stood an old tree. 2. On the hill it stood. 3. On the hill stood this. 4. On the hill this stood. 5. On the hill stood these. 6. On the hill these stood. (Are #1 and #2 correct? What about #3 and #4? Which one is correct? What about #5 and
asked by rfvv 
math
a man can row a bangka at a rate of 5 km/h in still water. It takes 10 minutes longer to row upstream a distance of 2km than he takes to row downstream. What is the rate of the current?
asked by alice 
math
factor x^43x^311x^2+3x+10 completely using the factor theorem.
asked by priya 
Algebra
Let f(x) = 3x  10. Find the value of f(3).
asked by Tiffanie 
statistics
A clinical trial tests a method designed to increase the probability of conceiving a girl. In a study 306 babies were born, and 174 of them were girls. the sample data with a 0.01 significance level to test the claim that with this method, the probability
asked by angela 
math
Using the information you calculated in the question above, consider the following. The Furniture Gallery is offering a 15% discount on plastic chair mats with the purchase of either chair. You have chosen a mat with an original price of $29.00. You also
asked by antonio 
statistics psy/315
Based on the information given for each of the following studies, decide whether to reject the null hypothesis.For each, give (a) the Zscore cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected(b) the Z score
asked by Anonymous 
science
is coal renewable or non renewable
asked by rebecca 
Economics HELP!!
Design an organization to solve the world banking/world bank regulation/would money supply problem
asked by Josh 
us history
How did immigrants regard public education? a. as an aid to assimilation b. as a threat to cultural heritage c. as a path to advancement d. all of the above
asked by Grace 
physics
Fiber Optic Distances When light rays travel down optical fibers, they don't follow a perfectly straight path. That means the light has to cover a little extra distance compared to the straightline distance from one end of the fiber to the other. Suppose
asked by Anonymous 
SCIENCE (Drugs)
(fill in the blank) Addictive drugs produce changes in one particular group of synapses that use the neurotransmitter _______________.
asked by Sammi 
physics
Fiber Optic Distances When light rays travel down optical fibers, they don't follow a perfectly straight path. That means the light has to cover a little extra distance compared to the straightline distance from one end of the fiber to the other. Suppose
asked by Anonymous 
Plz help :(
1. Write the ratio in the simplest form. 16:24 (1 point) 1:2 4:3 3:4 2:3 2. Solve the following proportion. x over three equals six over nine (1 point) 18 27 2 24 3. A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to
asked by sally 
Finance
The company bought some land three years ago for $3.8 million in anticipation of using it as a toxic dump site for waste chemicals, but it built a piping system to safely discard the chemicals instead. The land was appraised last week for $4.6 million. In
asked by Serenity1 
science
Infiltration is the process by which rainwater becomes; A. Saltwater B. River water C. Ground water D. Ocean water
asked by someone 
Physics Classical Mechanics
Greco I am having a problem with the turntable (gyroscope) problem. The angular speed is 300 radians per second. I tried a couple of formulas including one by you. Maybe I am not converting the units properly. I could use some help. I tried several
asked by Hil 
Delft Solar Cell
Consider a crystalline PV module with the following output parameters mentioned at STC (Standard Testing Condition) conditions by the manufacturer. Pmax = 250W Voc = 50V Isc = 6A NOCT = 40°C Temperature coefficient of power = 1W/°C a) If the ambient
asked by Deepak 
Calculus  Volume By Integration
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the yaxis: y=(x2)^32, x=0, y=25 Solve by either the disk or washer method. I calculated the volume using the shell method and got 1250pi. However,
asked by Nicole 
physics
What's your normal body temperature? It may not be 98.6°F, the oftquoted average that was determined in the nineteenth century. A more recent study has reported an average temperature of 98.2°F. What is the difference between these averages, expressed
asked by Anonymous 
English stories
Hii so in order to write an essay I needed to find three common themes in both stories of: to kill a mocking bird by harper lee and boys and girls by alice munro. What I found was: search for ones identity, coming of age but I need one more so I thought of
asked by katherineeee 
Physical Science
if Mount Everest is now 8,850 meters tall and is growing 2 centemeters per year, how old is it?
asked by Harold 
physics
A steel section of the Alaskan pipeline had a length of 65.9 m and a temperature of 21.4 °C when it was installed. What is its change in length when the temperature drops to a frigid 43.3 °C?
asked by Anonymous 
Physical Science
If the MidAtlantic Ridg opens at the rate of 5 centemeters per year, how much farther apart will Paris and New York be in a 1,000 years?
asked by Harold 
Physical Science
What are the tallest and longest mountain chais on Earth? How were they formed?
asked by Harold 
math
Contextualize this expression 5 1/2 divided 5/6
asked by Isabella 
physics
A snow maker at a resort pumps 260 kg of lake water per minute and sprays it into the air above a ski run. The water droplets freeze in the air and fall to the ground, forming a layer of snow. If all of the water pumped into the air turns to snow, and the
asked by Anonymous 
Geometry
In geometry, a common standard setting for enlarging on a copy machine is 121 percent. What does this mean?
asked by Martha 
Physical Science
How do we know that tectonic plates move? Describe how transform plate boundaries differ from plate boundaries.
asked by Harold 
Physical Science
If I live in Oklahoma, what tectonic plate do I live in? How many adjacent plates are there to the one I live on? In which direction are these plates moving?
asked by Harold 
chemistry
Why is limiting reactant important in stoichemestry?
asked by Anonymous 
Geometry
Describe the rotation and reflection symmetries in the Maple Leaf of Canada and the "Life" Ancient Egypt cross.
asked by Jackson 
Math
What number is 14 less than 10,000? A/9086 B/9986 C/10,006 D/10,086 2/ More than 4825 people attended a fair on Saturday. Nearly 3350 people attended on sunday . About how many thousand people attended the fair? A/ 6000 B/ 7000 C/ 8000 D/ 9000
asked by Nawaf 
math(help)
please help me and answers these i feel clueless!with this math 2.If Nell works 3/4 of an hour on Monday and 6/10 of an hour on Tuesday, how much time will she work altogether? A.9/14 hour B.9/20 hour C.1 7/20 hour D.1 7/10 
asked by matt 
Geometry
If mAB = 324 feet, mBC = 103 feet, and mCD = 212 feet, what is the distance across the pond?
asked by Mary 
Complex Math
Compute all possible values of e^i
asked by Q 
chemistry
Explain why is it important to have limiting reactant in stoichemestry?
asked by Girl 
5th Grade Math
Danielle and her brother went to the town carnival. Together, they won 15 prizes. Danielle won 9 of them. What fraction did her brother win? If there had been only 10 prizes won, how many would her brother have won if the fractions were equivalent?
asked by Stephanie 
Differential Equations
Use the Laplace Transform to solve this initial value problem. y''''  8y = 0, y'(0)=63, y''(0)=216, y'''(0)=297 I would really appreciate the help.
asked by Emily 
Math
Evaluate the expression for the given value. x = 3; y = 5; z = 2 x(yz)^2  3(xyz)^0 + 2x^2yz^2 = 3(5 * 2)^2  3(3 * 5 * 2)^0 + 2(3)^2(5 * 2)^2 = 3 * 100  3 * 30 + 2 * 9 300  90 + 18 = 228
asked by Alan 
Algebra
72 + 4 14d= 36
asked by Asia 
Algebra
6p  2 3p= 16
asked by Asia 
Math
You need 1/2 cup of sugar to make a three layer cake.how much sugar would you need for one layer cake?
asked by Pietro 
Math
What is the product of ten one  digit numbers?
asked by Pietro 
statistics
In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 110. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13
asked by NAD 
Math
Es time the answer below. A). 3 10/11 +2 1/101 Chose 4 or 5 or 6 or 7 B) 5 2/47  2 1/35. Chose 2 or 3 or 4 or 5 C) 6 17/18 * 7 3/290. Chose 42or 49 or 63or 213
asked by Pietro 
Social Studies (History)
Why was the United States a "salad bowl" rather than a "melting pot"? "Salad bowl" means everybody is not the same and "melting pot" means everybody is the same. I said The U.S. is a "salad bowl" because everyone is treated differently, they are judged
asked by Nicole 
communicate
consider an artifact that is prominently displayed by a friend or coworker  either at home or in some other space. In 12 paragraphs, explain how this artifact has influenced your interpretation of this person's identity. Is your perception more positive
asked by john 
Math
How do you do arrays and an expanded algorithm
asked by Denim 
math
the scale drawing of a model is 3 inches which equals 10 feet what is the actual size for 15 inches
asked by jasmine 
math
divide the polynomial x^33x^2+x+2 by x+2. Express your answer in the form f(x)=d(x)q(x)+r(x).
asked by priya 
science
Explain why Na2CO3 against HCL titration using phenolphthalein indicator does not go to completion but stops at the NaHCO3 stage.
asked by vincent 
math
solve 3x^3+x^28x+4>0. show all the algebraic calculations. (5 marks)
asked by Navin 
Physical Science
What direction are the plates moving that I live near?
asked by Harold 
math
solve 6x^313x^2+x+2=0 using a graphing calculator. then use your answer to write the given function in factored form. (do not use the factor theorem to factor this.) (6 marks)
asked by paul 
Physical Science
If I live in Oklahoma, and live in the North American plate, which direction are the adjoining plates moving?
asked by Harold 
math please help me
6x + 4(2x + 3) = 34 + 3x 6x + 4(2x) + (4)(3) = 34 + 3x 6x + 8x + 12 = 34 + 3x 14x + 12 = 34 + 3x 12 = 39 + 11x 27/11 = =11x/11 2.45 = x
asked by unknown 
Chemistry
1) A dog has the same mass for 3 years. State whether this represents an equilibrium or steady state situations, and give your reasons. I'm not sure if I got this question right... I think this is a steady state because the dog is opened to the environment
asked by Tyler 
Statistics
An industrial psychologist has a stress test that is used to determine the amount of stress that managers are under. A value of 80 or higher indicates “high stress.” The industrial psychologist believes that the managers at a large, profitable
asked by Anshul 
Chemistry
Please help! Is 4methylphenol acid, basic or neutral?
asked by Anon 
math
solve 6x^313x^2+x+2=0 using a graphing calculator. then use your answer to write the given function in factored form. (do not use the factor theorem to factor this.) (6 marks)
asked by Navin 
Math URGENT PLEASE
If a car in 1963 cost @$2,400 How much would that be in 2012
asked by Tracy 
math
solve 3x^3+x^28x+4>0. show all the algebraic calculations. (5 marks) (for grade 12 ways)
asked by Navin 
EDUCATIONAL TECHNOLOGY help me asap
what does it mean to say that two variables are negatively correlated?
asked by RECONSNIPER 
jiskha member
help i don't know what happened but i could not post questions or answers on this website for like a day or two. can some one please tell me what happened.
asked by NoS aSSaSSiNx 
math
divide the polynomial x^33x^2+x+2 by x+2. Express your answer in the form f(x)=d(x)q(x)+r(x).
asked by kevin 
History
A revolution was coming and he was giving warnings about Texas. Does the sentence below support what the sentence above is saying? As one covers the distance from San Antonio de Bejar to this town he will note that Mexican influence decreases until on
asked by Anonymous 
Physical Science
Descrive the "big splash" theory of the Moon's origin.
asked by Harold 
Physical Science
How many adjacent plates are there to the North American plate?
asked by Harold 
nuking japan
what where the names of atom bombs droped on Japan? and what does MOAB mean?
asked by SuperPowerSupply (for short SPS) 
math
A company that manufactures a specialty line of high performance racing boats has determined that its profit margin can be represented by the equation, PM(x)=x^3+7x^210x, where x is in thousands of dollars. a) graph without technology. b) determine the
asked by kevin 
math ergent please
Given the function f(x)=Kx^3mx^2+3x+7, determine the values of k and m if the remainder is 2 when f(x) is divided by x+1 and 4 when f(x) is divided by x1
asked by kevin 
chemistry
When weighing liquid ethanol, why do you have to place water in the beaker prior to adding the ethanol to that same beaker? We were told to make a to make a 0.40% (wt/vol) stock solution by weighing 400 mg of absolute ethanol into a tared beaker that
asked by Anonymous 
chem
A 1L flask is filled with 1.25g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pressure is 1.35atm . What is the partial pressure of argon, PAr, in the flask? What is the partial pressure of ethane, Pethane, in
asked by emily 
algebra
A man tosses a penny up into the air above a 100 ft well with a velocity of 5 ft/sec. The penny leaves his hand at a height of 4 ft. How long will it take for the penny to reach the bottom of the well?
asked by cole 
AP World History
Compare the position of upperclass women in classical Indian, Chinese, Greek, and Roman societies with regard to their ability to hold property, opportunity to pursue careers outside the home, rights in marriage and divorce, and level of education? hey!
asked by Samantha 
math
can the equation of two negative fraction ever be negative
asked by florenta 
EDUCATIONAL TECHNOLOGY help me asap
what is a trend line on a scatter plot? a visual representation of the relationship between two variables a line connecting only the highest and lowest values on a graph
asked by NoS aSSaSSiNx 
math
For the integers from 1 to 1000, how many multiples of 9 are also multiples of 6?
asked by John 
Physics
James joule measures temperature of the water at the top and bottom of the waterfalls. If one of these waterfalls is 55m high, and all gravitation energy of the water is at the top of the falls. What temperature difference would be between the water at the
asked by Sam 
Algebra
What is the sum of all coefficients of the polynomial? f(x)= (3x^3  3x  1)^38 * (2x+1)^4 * (x^4  3x^2 + 5x  2)^77
asked by andrew 
Physics
James joule measures temperature of the water at the top and bottom of the waterfalls. If one of these waterfalls is 55m high, and all gravitation energy of the water is at the top of the falls. What temperature difference would be between the water at the
asked by Sam 
hemingway
Hemingway once said, “For a long time now I have tried simply to write the best I can. Sometimes I have good luck...and write BETTER than I can.” What does this quote say about what Hemingway thought of his writing? A. His writing allows the reader to
asked by orpheus 
Chemistry
Consider the reaction: CaCl2. 2H2O(s) CaCl2(s) + 2H2O(g) The equilibrium constant for the reaction as written is
asked by Anonymous 
Science
What will be the new volume if 115 mL of He gas at 100°C and 0.993 atm is cooled to 26°C and the pressure is increased to 1.35 atm?
asked by Lauren 
5th Grade Math
Danielle and her brother went to the town carnival. Together, they won 15 prizes. Danielle won 9 of them. What fraction did her brother win? If there had been only 10 prizes won, how many would her brother have won if the fractions were equivalent? Can you
asked by Stephanie 
finance
I am borrowing $10,000 for 5 years at 9%. payments, which are made on a monthly basis, are determined using the addon method. 1. how much total interest will i have to pay on the loan if it is held for the full 5 year term. 2. what are my monthly
asked by denise 
ET3034TUx Solar Energy
Consider a crystalline PV module with the following output parameters mentioned at STC (Standard Testing Condition) conditions by the manufacturer. Pmax = 250W Voc = 50V Isc = 6A NOCT = 40°C Temperature coefficient of power = 1W/°C a) If the ambient
asked by Anon 
prealg
What is the scale that you will use for your scale drawing? I'm not understanding the question? is it asking what number i will use? or is it asking what type of graph type deal I will use? (My scale was 115 x 160)
asked by Pretty Reckless 
creating a pivot table
before you create a pivot table, it is important to ________.
asked by NoS aSSaSSiNx 
history
why do you think president lincoln's proposed generous terms for reconstruction in 1863
asked by moll 
Algebra 1
square root to nearset integer 125 11 200 14 47 6
asked by Katie 
College Algebra
Find a Quadratic polynomial function with real coefficients satisfying the given conditions. 4 and 3 are zeros; f(1) = 30 HELP. I have no idea.
asked by Billy 
Algebra 1
a scale drawing for a new city library shows a rectangular children's reading room with a length of 5 1/4 inches and a width of 3 1/2 inches. The scale on the is 1 inch:4feet . What will be the actual length and with of the room when the library is built.
asked by Jynessa HELP 
Science
When using the method to calculate the distance to stars, astronomers measure the parallax angels exactly 6 months apart. Why? Please help!
asked by Sam 
Science
When calculating the distance to extremely distant stars using parallax, astronomers use incredibly accurate instruments. Why is this important? Please help Thank you
asked by Sam 
physics
a certain centrifuge produce a centripetal acceleration of magnigtude exactly 1410g at a point 12.3 cm from the axis of rotation. find the number of revolutions per second
asked by Anonymous 
Chemistry
What mass of rhodium contains as many atoms as there are zirconium atoms in 51 g of zirconium? Answer in units of grams.
asked by Nayyar 
Chemistry
How much do 8.36 × 1022 molecules of water weigh? Answer in units of grams
asked by Nayyar 
History
Who were the Seljuk Turks? What did they do?
asked by anon 
Math
my numerator is a prime number. The gcf of my numerator and denominator is 2. I am equivalent to 1/5.
asked by School 15 
Algebra 1`
Write the equation so that y is a function of x. 12x+3y=15 Can someone show me steps.
asked by Stella 
chemistry
predict the reaction, if any, that would occur if AgNo3 and KBr were mixed would any reaction occur if HBr was then added?
asked by demar watson 
language arts
Which one of these sentences is written in active voice? A. The umbrella was carried by the young lady as she walked on the beach. B. They walked up the road together to the old rickety barn. C. The newspaper was held down by the paper weight. D. The smell
asked by orpheus 
Math
If you dive 17 feet below water, ascend 5 feet, descend another 16 feet what is the total distance you dove?
asked by Mary 
math
60cm to 4 m
asked by jazrer 
Physics IMP
A large heavy box has its center of mass at a distance l from a bottom corner and at an altitude h above the ground. At what critical angle alpha does the box start to fall over when it is tilted? Assume that the bottom corner of the box has a large
asked by Rosa 
San Sebastián
In Harry's attic there are. Three spider webs.the first web is twice as larger as the second web. The third web is 3 inches larger than the first web.The combined width of the three webs is 1 foot and 6 inches.How many long is each web?
asked by Rasty 
chem  instrumental analysis
A stock solution of ethanol is made by weighing out the correct amount of absolute ethanol in a tared beaker containing 15 ml of water. Why is it necessary to add water to the beaker before adding the ethanol?
asked by puzzled 
statistics
With n=13 and p= 0.7, find the binomial probability p(9) by using a binomial probability table. If np> and nq> 5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, if np
asked by angela 
math
Hi can you help me with this problem please: Ivan has 6 times as many blue beads as red beads. He has 49 red and blue beads in all. How many blue beads does Ivan have?
asked by Anonymous 
Science HP
When using the method to calculate the distance to stars, astronomers measure the parallax angels exactly 6 months apart. Why? Can you please help? Thank you.
asked by Chelse 
English
The skaters must finish the race in two days. (What does 'in' mean in this sentence? Does 'in' mean 'after' or 'within'?)
asked by rfvv 
Chemistry
H(f) Cl= 121.3 kj H(f) C= 716.7 H(f) CCl4= 95.7 calculate the average molar bond enthalpy of the carbonchlorine bond in a CCl4 molecule. I have tried to figure it out and keep getting the wrong answer. Please help!
asked by Chelsea 
Math
I'm confused, please help. If a quarterback had 112 positive yards and 61 negative yards what was his total yardage, should I add both together?
asked by Lily 
chemistry (Dr.Bob222)
Do serial dilutions start out as saturated solutions?, Meaning when it starts out ppt forms, but there is a point where ppt stops forming, so when the ppt stops forming does that mean it is representing a saturated solution, and that when the ppt is not
asked by K 
physics
A monatomic ideal gas is thermally insulated, so no heat can flow between it and its surroundings. Is it possible for the temperature of the gas to rise? If the temperature can rise, how does it rise?
asked by john 
chemistry
what is another way you could determine the enthalpy of formation of magnesium oxide beside the experimental method?
asked by Anonymous 
Calculus
600 feet of fencing to enclose a rectangular plot If I don't fence one side what is the length and width of the plot that maximized the area?
asked by Anonymous 
antelope college
Oscar has 4 gallons 1 quart of milk. he wants to place all of the milk into quart bobbles. how many quarts does he have?
asked by norma 
Physics`
A field hockey player's arm and stick form a rigid segment. Assuming she hits the ball when the stick is vertical, which of the following would result in the greatest velocity of the end of her stick immediately before she hits the ball? a) She stands
asked by Caitlin 
Math
1. Consider a heptagon geometric figure. a) Write an equation for its perimeter b) If you graph the equation wherein x=2, 5, 8, and 12, does the graph show direct variation? 2. The surface area of a cube varies directly as the square of its edge. If each
asked by Jean Marie 
Physical Science
How do we know that tectonic plates move?
asked by Harold 
Physical Science
Describe how transform plate boundaries differ from plate boundaries.
asked by Harold 
English
Inversion 1. Down came the rain. 2. Down it came. 3. Down came that. 4. Down that came. (I think #1 and #2 are in right order. What about #3 and #4? Which one is correct, #3 or #4?)
asked by rfvv 
math
Marta's weekly pay for selling large screen televisions is determined by the formula S= $275 + 80n where s is her pay in dollars, and n is the number of large televisions she sells that week. If Marta's pay last week was $835, how many large screen
asked by Rebecca