Questions Asked on
January 13, 2011

third grade math
How do I answer this......Write three ways to find 3x2x4.
asked by Alexis 
physics, dynamics
Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 2 m/s2 until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when t = 0, car B located 2000 m down the road is traveling towards A at
asked by siti 
chemistry
consider the following reaction: 2C2H6(g)+7O2 (g)>4CO2(g)+6H2O (g) delta H = 3120kJ If 3.00g of ethane are burned, how many kJ of heat are produced?
asked by madison 
chemistry
Is this a buffer system? NH3/(NH4)2SO4? It is formed by mixing NH3 (weak base) and a strong acid (H2SO4), but according to my worksheet it is not a buffer system. Why is this so? Isnt it a buffer as long as it consists of a weak base and its salt of a
asked by seth 
COMM 155
use at least 5 adverbs and 5 adjectives to write a brief review of a movie bold each adverb underline each adjective use at least 3 comparatives and 3 superlatives Twilight is romantic, intriguing, and full of subtle humor. It is a modern day love story of
asked by Misty 
physics
An automobile tire is rated to last for 45,000 miles. Estimate the number of revolutions the tire will make in its lifetime.
asked by christina 
us history
"Although the economic growth of the United States between 1860 and 1900 has been attributed to a governmental policy of laissezfaire, it was in fact encouraged and sustained by direct government intervention." Assess the validity of this statement. What
asked by Dee 
chemistry
I got E) for the first and couldn't figure out the other one. Can any one verify the first and help with the second?? In which of the following processes is there a decrease in the potential energy of the substances involved? A) a coil spring is compressed
asked by jake 
Chemistry 211
Chlorine pentafluoride gas is collected at 14.0 degrees Celcius in an evacuated flask with a measured volume of 30.0L When all the gas has been collected, the pressure in the flask is measured to be 0.260atm. Calculate the mass and number of moles of
asked by Melissa Carder 
chemistry
I got E) for the first and couldn't figure out the other one. Can any one verify the first and help with the second?? In which of the following processes is there a decrease in the potential energy of the substances involved? A) a coil spring is compressed
asked by jake 
Law and ethics in allied health
ive been trying to figure this question out for 20 minutes.. if you could help me that would be great.  Dennis, a new medical assistant at Dr. Hernandez's office, notices that Beth has been waiting over an hour to get an allergy shot. Dennis has never
asked by Ali 
chemistry
consider the following reaction: C3H8 (g)+ 5O2 (g)> 3CO2 (g)+ 4H20 (g) Delta H = 2440kJ The heat of formation of CO2 is 390 kJ/mol and the heat of formation of H2O is 240 kJ/mol. What is the heat of formation of propane?
asked by madison 
PreCalculus
1.The angle of elevation to top of a building from a point on the ground 20degrees and the angle of elevation from a point to 25 feet farther away is 12degrees. Find the height of the building. 2.From a point on the ground, the angle of elevation to the
asked by Jay 
chemistry
C2H2(g) + 2 H2(g)> C2H6(g) Substance So (J/mol∙K) ∆Hºf (kJ/mol) C2H2(g 200.9 226.7 H2(g) 130.7 0 C2H6(g)  84.7 Bond Bond Energy (kJ/mol) CC 347 C=C 611 CH 414 HH 436 If the value of the standard entropy change, ∆Sº for the reaction is
asked by Brenda 
Physics
a 10 kg gun recoils with a speed of 0.1 meter per second as it fires a 0.001kg bullet. what is the speed of the bullet as it leaves the gun
asked by Diana 
Calculus
The halflife of radioactive strontium90 is approximately 31 years. In 1960, radioactive strontium90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 11
asked by Brittany 
physics
Consider the three electric charges, A, B, and C, shown in the figure. ABC q +q +q The Distance between is same. Rank charges from largest to smallest magnitude of the net force they experience and can any one tell me how?
asked by Cassie 
Math
What is the next number in the pattern 20,000; 4,000; 800; 160?
asked by Sam 
Algebra
if x, y, and z are positive numbers, with xy = 24, xz = 48, and yz = 72, what is x + y + x? please explain how you got tha answer too. thank you.
asked by marissa.1274 
campridge trigonometry
prove that ; tan20 . tan30 . tan40 = tan10
asked by mos 
math
Cher has forgotten the combination to her locker. She knows it consists of four numbers  3, 5, 7, and 9  but she can't recall the order. She decides to try every possible order until she gets the right one. How many possible orders are there?
asked by Nicole 
geometry
the area of a parallelogram is 507 square cm, and its height is three times its base. find the base and the height.
asked by Anonymous 
english
1. The young student (noun), who was new to (preposition) the school, wants (verb) to join the debating and (conjunction) fencing clubs, 2. I (pronoun) dream nightly (verb) to play the guitar (noun) in (preposition) the school (adjective) band. 3. The
asked by jana 
chemistry 2
how many grams of calcium nitrate need to be dissolved in 250 mL of water to form a solution that has a freezing temperature of 3.2 degrees C
asked by Anonymous 
Chemistry
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage
asked by K 
Calculus
In the year 2005, a picture supposedly painted by a famous artist some time after 1815 but before 1865 contains 96.5 percent of its carbon14 (halflife 5730 years). From this information, could this picture have been painted by this artist? Approximately
asked by Brittany 
math
A necklace was priced between $50 and $100 was on sale at 25% off. When the original price (a whole dollar amount) was discounted, the sale price was also a whole number of dollars. What are the possible original prices for the necklace?
asked by hayle 
physics
A +5.0uC charge experiences a 0.48N force in the positive y direction. If this charge is replaced with a 2.7uC charge, find the magnitude of the force in this case Find the direction of the force in this case. help please i am confused
asked by Cassie 
Math
For problems 1 and 2, determine how many solutions there are for each triangle. You do not have to solve the triangle. 1. A = 29°, a = 13, c = 27 2. A = 100.1°, a = 20, b = 11 For problems 36, solve each triangle using the Law of Sines. If there is no
asked by Tabitha 
Chemistry
NH4HS(s) NH3(g) + H2S(g) ∆H_ = +93 kilojoules The equilibrium above is established by placing solid NH4HS in an evacuated container at 25°C. At equilibrium, some solid NH4HS remains in the container. Predict and explain each of the following. (a) The
asked by Paul 
Algebra
A music downloading website reports that nearly 5 out of 7 songs are pop music. According to this infomation how many of the next 500 songs are pop music?. Round it to the nearest whole number.
asked by Sam 
math
which has the greater area: a square with a side that measures 7 meters, or a 6by8 meter rectangle? what is the area?
asked by tracy 
biology
A eukaryotic gene typically has all of the following features except: a) an operator b) control elements c) a promoter d) introns e) a terminator
asked by kyle 
physics
A heavy bankvault door is opened by the application of a force of 3.0 x 10^2 N directed perpendicular to the plane of the door at a distance of 0.80 m from the hinges. What is the torque?
asked by Faith 
Biochemistry
What is the new pH when 1mL of 1M HCl os added to 5mL of 0.1M Phosphate buffer (pH 7.4)?
asked by Rose 
Math/Trig
Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth
asked by Tabitha 
English 3
Great Gatsby Chapter 1. Why is Nick telling the story? Why is nick "confused and disgusted" at the end of this chapter?
asked by Josh 
ENGLISH
Which of these events in the plot of Silas Marner best represents the complication in the novel? a.Silas tells Molly he has learned to trust again. b.Godfrey learns that Molly is dead. c.All of Silas's gold is stolen following fifteen years of selfimposed
asked by ADAM CORN 
ChemistryDrBob222
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage
asked by Kevin 
MaTH
Rearrange the terms of the equations fo form Ax + By = C I really get confused about general form, like how do I do it, I don't understand at all. x+3y = 1 2x+4y12 = 0
asked by Anna 
math
find the current produced when a voltage of 60v is applied to a resistance of 15
asked by janaurius 
math
how many pairs of congruent sides does a rhombus have?
asked by isha 
algebra
if x, y, and z are positive numbers, with xy = 24, xz = 48, and yz = 72, what is x + y + x? please explain your answer too. thankyou.
asked by spears. 
african american history
Discuss the controversies concerning the racial identity of ancient Egyptians. What is the significance of this controversy for the history of AfricanAmericans?
asked by steve 
Math
if log(x+1) 27=3 find the value of x *(x+1) is the base i know that the answer is 2 but i have no clue how to get that
asked by Emily 
geometry
The legs of an isosceles triangle have lengths 2x+4 and x+8 . The base has length 5x2 . What is the length of the base?
asked by edtyyyd 
Physical Science
A quantity of water is poured into a graduated cylinder, which then reads 145ml. what is the mass of the water in kilograms?
asked by Tori 
History
The main reason for middle class resentment of the French aristocracy was that: a. The aristocracy pain no taxes while the bourgeoise paid heavily b. the middle class felt shut out of so many government offices and honors c. the aristocracy was growing
asked by Nicole Anilom 
physics, bike
After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 6.50 and it rotated 15.2 revolutions before coming to rest.What was its average angular acceleration?
asked by john 
Debug=true
The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: 1. Add a "Debug=true" directive at the top of the file that generated the
asked by Amy~ 
Physics
2 moles of ideal gas are in a cylinder container with crosssectional area 1*10^2 m^3. Cylinder is fitted with a light, movable piston that is open to atmosphere, where pressure is 10^5 PA.A 50KG MASS PLACED ON PISTON KEEPS IT IN mechanical equilibrium
asked by Grace 
business
Applying the strategy used by David Windorski at 3M to other organizations would suggest that these firms should
asked by mandeep 
physics
An electron in a computer monitor enters midway between two parallel oppositely charged plates. The initial speed of the electron is 6.15 x 10^7 m/s and its vertical deflection is 4.70 mm. (a) What is the magnitude of the electric field between the plates?
asked by Isabell 
math
How do you find (in radians) the exact value of: tan[pi(pi/12)]
asked by Haley 
physics
A heavy bankvault door is opened by the application of a force of 3.0 x 102 N directed perpendicular to the plane of the door at a distance of 0.80 m from the hinges. What is the torque?
asked by Faith 
Trigonometry/ Please Help
Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.
asked by CJ 
Fin Management
David purchased a $100,000 participating whole life policy. The annual premium is $2,280. Projected dividends for the first 20 years are $15,624. The cash value after 20 years will be $35,260. If the premiums were invested at 5 percent for 20 years, the
asked by KEVIN 
chemistry
balance the following equation by half reaction method in an acidic medium: C3H8O + MnO4^ gives off C3H6O + Mn^2+
asked by Jessy 
Math
Need help problem solving A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do
asked by Tracey 
FAST MATH HELP
Need help problem solving A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do
asked by Tracey 
physics
a car starts from rest and travels for 4.2 s with a uniform deceleration of 1.8m/s^2. what is the final velocity of the car?
asked by james 
Statistics
"Buy a Match 6 lottery ticket every day until you win the lottery. (In a Match 6 lottery, a player chooses 6 different numbers from the set {1, 2, 3, ..., 44}. A lottery representative draws 6 different numbers from this set. To win, the player must match
asked by Emily 
math/trig
I have two questions as I review for a test tommorow, any help is much appreciated!! Solve: 1) 4sin^2x=2cosx+1 2) cscx+cotx=1
asked by Michael 
Algebra
Economy Movers charge $85 plus $40 an hour to move households across town. Helpful Moving Company charges $60 an hour for crosstown moves. For what lengths of time is Helpful Moving Company more expensive?
asked by Cmajor 
physics
What voltage is required to store 6.90 105 C of charge on the plates of a 7.00µF capacitor?
asked by Anonymous 
Physics
A 14,245N auto with a velocity of 6.0m/s crashes into a brick wall. If the car moves 64.0 cm before coming to a stop, what average force does the car exert on the wall?
asked by Dani 
ChemistryDrBob222
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage
asked by Kevin 
chemistry
the following reaction is carried out in a bomb calorimeter: 4NH3 (g) +5O2 (g)>4NO (g)+6H2O (g) The calorimeter constant is 45.0kJ/K. when 34.0g of NH3 are reacted in the calorimeter, the temp rises by 10 degrees C. What is the change in energy, delta E,
asked by madison 
Science
The ____ of the cell is the control center of the cell.
asked by Kai 
Math
Need help problem solving A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650? I think I have to do
asked by Tracey 
Trigonometry/ Please Help
The average temperature, in °F, of City B is given by the equation:y=19.5sin(pi/6t2.06)+62 , where t is the time in months and t = 1 corresponds to January. What is the average temperature in April? Round your answer to the nearest hundredth.
asked by CJ 
Science
Is this chemical equation correct and properly balanced, C3H4 + 5O2> 3CO2 + 44H2O ?
asked by Corey 
physics
Two point charges, +3.30 µC and 5.50 µC, are separated by 1.29 m. What is the electric potential midway between them?
asked by Anonymous 
Physics
An arrow directed at a stationary target is shot at an angle of [E 25 N]. The arrow hits the intended target at the same height from which it was launched, 3.0 s later. a) Determine the distance from the archer to the target. b) At what angle should the
asked by Taylor 
History French Revolution
I think the answer is a, but I would choose e if it weren't for letter d. Because I don't believe that his taxes actually resolved the financial crisis. Help, please. The financial crisis of the pre1789 period in France: a. was caused primarily by war
asked by Nicole Anilom 
algebra
A problem that is similar to the examples talked about are St Marks Community babraque served 250 dinners. A childs plate cost $3.50 and an adults plate cost $7.00. A total of $1347.50 was collected . How many of each plate was served?
asked by judyanne 
chem
Use the periodic table to write electron configurations for each of the following elements. (Type your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.) 1. Pd thanks
asked by hannah 
MAATH
Rearrange the terms of the equations fo form Ax + By = C I really get confused about general form, like how do I do it, I don't understand at all. x+3y = 1 2x+4y12 = 0
asked by Anna 
stastics
Practice Problem #16 pg. 307: A researcher theorized that people can hear better when they have just eaten a large meal. Six individuals were randomly assigned to eat either a large meal or a small meal. After eating the meal, their hearing was tested. The
asked by Dianne 
Math
If you're given a 90 degree angle split down the middle, and one of the angles is 30 degrees, what would the other angle be? sorry im not too good at math
asked by Dara 
Necessary Math HELp
2x + y = 5 3x +5y = 3 How come I have to multiply by 5 to make the y variables cancel, like what does that mean? I don't get how ur supposed to multiply like where and how? Im really stuck right now, please help:(
asked by Mathew 
social studies 201 (URGENT)
examine each source below and write in paragraph form, a response in which you: interpret each source to identify and explain the perspective(s) related to Nationalism. identify and discuss one or more ideological concepts that are refleted in the
asked by Tom 
11th grade math
How do you do Absolute Value Functions with graphs?
asked by Elizabeth 
English
Hey guys, I was just wondering if you could help me find or explain to me media influence in the Hunger Games. I know this is a big part of the story, but I really need clarification. Thanks a lot guys!
asked by Alex 
Physics
100 m from a traffic light, a motorist sees it to red. If he needs to accelerate at 1 m.s ^2 to stop at the traffic light, what is the initial speed, and how long did he take to stop?
asked by Joseph 
Description
What are descriptive words? what category do they fall under? Adjectives? Whats difference between adjective and verb? Verbs are action words right?
asked by Cya 
Geometry
Alek's mean on 10 tests for the quarter was 89. He complained to the teacher that he should be given an A because he missed the cutoff of 90 by only a single point. Explain whether it is clear that he really missed an A by only a single point.
asked by crystal 
math
Solve Equation by Adding or Subtract fraction using Addition property of Equality or Subtraction property of equality. x5/6 = 1/10
asked by me 
Math/Trigonometry
Find the exact value of cosθ if sinθ=2/3, and θis in standard position with its terminal side in Quadrant IV.
asked by CJ 
Math
If sinθ=1/5 and θis in Quadrant I, find the exact value of 2θ.
asked by CJ 
chemistry
How many grams of oxygen gas are reacted if 75 g of hydrogen gas is consumed?
asked by Hannah 
Science
Sediment rocks are formed from _____ that are cemented and pressed together. I don't have a book to look in.
asked by Kai 
ENGLISH
Which of these best characterizes the difference between meter and diction in poetry? A.Meter is the rhythmical cadence and diction is the use of language. B.Meter is the pattern of end sounds and diction is the pattern of beginning sounds. C.Meter appeals
asked by ADAM CORN 
Science
how much force is needed to accelerate a 68 kgskier at a rate of 1.2 m/sec sq
asked by Morgan 
Clocking Tectonic Plates
As I was reading through one of the websites, I happened to come across this sentence. Wegener's explanation was that as the continents moved, the leading edge of the continent would encounter resistance and thus compress and fold upwards forming mountains
asked by Anonymous 
stats help!
suppose the number of customer complaints per day on the morning shift (6am12) at Murph's Coffee is distributed as follows: Complaints f(x) 0 .3 1 ??? 2 .2 a) what is the value of ??? b)what is the average number of complaints per day on the morning
asked by Sam 
8th grade math
Mitchell earned a total score of 55 points. Twenty percent of the baskets he made were worth threepoints each. If fourfifths of the twopoint baskets Mitchell attempted were successful and he made onethird of the threepoint baskets he attempted, what
asked by Anonymous 
Calculus
Solve the inequalities a)6x3+5x2
asked by Zukii 
Math
Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class raised total of 160 bucks, how many coins of each type was
asked by Mathew 
Trigonometry
Given sinθ=0.76, find θ in degrees to the nearest tenth.
asked by CJ 
quant. methods
Kim is deciding between two cell phone plans. Plan A charges a fixed monthly fee of $100 for 1200 minutes and .25 per minute over 1200. Plan B charges a fixed monthly fee of $55 for 1000 minutes and .33 per minute over 1000. At what point of usage would
asked by Christina 
Geometry
Robert says that if you toss three coins you get 3H (#Heads), 2H (2 Heads), 1 H (1 Head), or OH ( 0Heads), so the probability of getting three heads is 1/4. How do you respond?
asked by crystal 
math
sparky weighs 3/4 of her weight, plus 3/4 a pound. how much does she weigh?
asked by mike 
To Helper
I had a problem to solve, and I don't get how to make equations from this problem. Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins
asked by Mathew 
history
Who made the spiral notebook and when?
asked by liz 
MATH
IS ABOUT ESTIMATE THE SUM ROUNDING TO THE THOUSANDS PLACE
asked by KARELIN GONZALEZ 
Algebra
3+5(6)[86*7)4(135)]3(810) Order Of operation
asked by Anonymous 
math
How do you solve this problem? Find the slopeintercept equation of the line that has the given characteristics. Slope 8 and yintercept (0,5) The slopeintercept equations is y=
asked by samuel32 
algebra
Divide 48x^924x^3=40x 8x
asked by sarah 
science
What is the name of the process when carbon dioxide moves blood to the alveoli?
asked by nicki 
electrics
describe the nature of, and summarise the reasons for a three phase supply network, with reference to th national grid distribution system
asked by Karl Haxell 
Math/3rd grade
If you forget the product of 9 and 9, what can you do to figure it out?
asked by Alexandra 
math
Please help! How do I solve x/3 times5/8 = 5/12?
asked by tasia 
pre algebra
the midpoints of each side of triangle NOT are connected to make a smaller triangle inside triangle NOT. If the area of triangle NOT is 16 in squared, what is the area of the smaller triangle?
asked by jen 
math
mr. m has an 8 inch by 11 inch sheet of paper. He created a box by cutting congruent squares from each corner.The base of his box is 54 square inches.How much did he cut from each corner.
asked by matt 
Science
Photosynthesis requires ____ , ____ and _____
asked by Jennifer A 
science
C3H8+5O2>3CO2+4H2O is this chemical equation correct and equal? If not why?
asked by Corey 
physics
Identical +1.45 µC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed to one of the empty corners, so that the total electric potential at the remaining empty corner is 0 V?
asked by michelle 
Physics
A 14,245N auto with a velocity of 6.0m/s crashes into a brick wall. If the car moves 64.0 cm before coming to a stop, what average force does the car exert on the wall?
asked by Dani 
math
A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5centimeters longer and 2 centimeters wider than the first. what are the dimensions of the original rectangle?
asked by maya 
accounting
Journalizing in a General Fund: Modified Accrual Basis: Issued $20 million in longterm bonds. Acquired several tracts of land at a total cost of $4million, paying the entire amount in cash.
asked by Stacey 
physics
the frequency of yellow lights is 5.00 x 10^14 Hz. if it travels through space (where v= 3.00 x 10^8m/s) find the wavelength of this light.
asked by mike 
PHYSICS
coil having 1000 turns and a length of 3.14cm carries a current of 5A. calculate the magnetomotive force and the magnetizing force
asked by DEWA 
Math
Use a ruler to create a 6" x 8" rectangle. Cut rectangle on a diagonal. Use the two triangles to create four new shapes. List the most specific shape and its perimeter
asked by Anne 
grammar
Write the correctword or words in the (parentheses). 1. (she,her) and grandfather lived in Swiss Alps. (She) 2. Heidi and (he,him)tend goats together. (he) 3. Grandfather is stern, although no one is kinder then (he,him). (him) 4.(we, us) readers grow fond
asked by Tiffany Jade 
English
I have a few other questions I forgot to ask you in my previous post. Can you see if the following remedies are possible? 1) Have you hurt yourself? Does it hurt? Are you hurt? Yes, I think broke my finger (Can you say that?) 2) I've broken my leg. I think
asked by Franco 
math
Using a grid. Draw two different figues that each have a perimeter of 14.
asked by Austin 
social studies
Which issue did some people think would be a problem related to NAFTA? A. increases in immigrants from Mexico B. decreases in income to governments because of lower tariffs
asked by Kaleb 
Geometry
Suppose you have three sticks of lengths 10 cm, 20 cm, and 31 cm. Can you arrange these sticks into a triangle? If not, why not?
asked by crystal 
Chem
What is the energy (e) of electromagnetic radiation having a frequency of 6.32 x 10^20 s^1?
asked by Molly 
Algebra
Sam two student loans totaled $31,000. One of his loans was at 2.8% simple interest and the other at 4.5%. After one year, Sam owed $1024.40 in interest. What was the amount of each loan?
asked by Keith 
Psychology
• Post a 200 to 300word response to the following: Describe the stages of sleep. In which stage do we dream? What are the five common beliefs about dreaming? What are the two common theories about dreams? Which of the two theories do you agree with?
asked by Ashley 
Math
How to write a math story that includes 4 examples... Possible math topics include: introduction to functions investigating quadratics quadratics highs & lows exponential functions fiancial applications of exponential function acute triangle trigonometry
asked by Tarkan 
MATH
Solve by using elimination: 7x  2y =3 2x +y = 4 ?????????????????
asked by Mathew 
chemistry
Does Kv2SOv4, Kv2COv3 or KCv2Hv3Ov2 create the greatest increase in pH when mixed with water?
asked by kathryn 
Physics
A speedy tortoise can run at .01 meters per second, and the hare can run 21 times as fast. I. A race they start at the same time, but the hare stops for 1.5 minutes so the tortoise wins by a shell(20cm). How long is the race? How long is the path?
asked by Rose 
geometry
to all the people that helped me with my recent geometry questions thankyou my grade I received was 45 out of 50 points best I've ever done in my class.
asked by crystal 
economics
You have the following data. A monopolist produces 1000 units of output per month, and sells it at the price of 10 each. You know that the monopolist does not do any price discrimination, and you also know that the pricecost margin of this firm (PMC)/P
asked by joe 
3rd grade math
Barry says 9x8x(any oter number) will always be greater tan te product of 2x9x4. Do you agree? Explain?
asked by Alexis 
Please HELP!!!!
mr. m has an 8 inch by 11 inch sheet of paper. He created a box by cutting congruent squares from each corner.The base of his box is 54 square inches.How much did he cut from each corner. (algebraic solutions only)
asked by To Ms. Sue 
5th math
I need help with my math .What is the least Common Multiple (LCM) for 6,4,and 8.? please! show how you get the answer. cause, i got( 2,2,2) i'm not sure of myself at all. thank you! another one problem i'm really confuse is the Write a 9 digit numeral
asked by pat 
Geometry
What happens to ethe surface area of a sphere if the diameter is tripled?
asked by crystal 
7th Grade Science
help me find the answer to this question for tomorrow... can you think of any examples from the real world where lowered genetic diversity is impacting a species' ability to survive?
asked by school8er 
Nuclear Physics
If a polonium210 (Po210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po210 nucleus? Hint: W = F*r F=kq1q2/r 2
asked by Marty 
IT computer memory
Hi, Can someone check this for me please.. 18 MB of data are to be transmitted over a a megabyte per second connection. How long should the complete transaction take, to the nearest 0.1s. Size of file / data rate so, 18MB x 10^6 x 8 bits = 144,000,00 4
asked by freddo 
physics
a 65kg student holding a 5 kg ball is at rest on ice. if the student throws the ball at 3m/s to the left, what is her velocity after throwing the ball
asked by bebe 
Social Studies
What group of people did the black plague benefit in england and the surrounding aread?
asked by Owen 
algebra
from our text book "Bittenger, M. L. & Beecher, J. A. (2007). Introductory and intermediate algebra (3rd ed.). Boston: PearsonAddison Wesley" can someone please help me with "Review examples 2, 3, and 4 in section 8.4 of the text. •How does the author
asked by judyanne 
Geometry
The measures of all angles in a regular octagon are (4x + 12)°. Find the value of x. Show equations and all work that leads to your answer.
asked by Katheryn 
math
There are 4 positive numbers whose sum is 60. Their maximum product will be :
asked by ataur 
Math
PLEASE HELP!!! beth has 60 toy cars and trucks. 75% of them are blue. How many are blue?
asked by Ra'ven Johnson 
english
Hi I have some questions and I would really if you answer my questions! I want to be Nurse Practitioner and I am very passion about it. But I have a lot of problems. First English is not my native language, second I am not good at math, third I am kind
asked by Janet 
Trigonometry
Verify the identity: cos x + sin x tan x = sec x.
asked by CJ 
4th grade
a) the quotient of 24 divided by 5.= 4.8 b)27/6= 4.5 c) 18/4 = 4.5 d) 30/5 = 6 describe in your own words what problems a, b and c have in common that make them different from d .
asked by dk 
prealgebra
can you please help me find the common denominater to this problem? n+2/3=1/9
asked by me 
algebra
2x/x4 + 4/x3 = 8/x^27x+12
asked by math 
MATH combinatorics
miguel line sup 5 cups of pop (labelled Cup 1, 2, 3, 4, 5) on a table. sandra then tastes each cup and records "D" if she thinks its diet pop or "R" if she thinks its regular pop. a. how many different ways can the Ds and Rs be recorded if sandra guesses
asked by Anonymous 
Math
mr. m has an 8 inch by 11 inch sheet of paper. He created a box by cutting congruent squares from each corner.The base of his box is 54 square inches.How much did he cut from each corner. (algebraic solutions only)
asked by Anonymous 
pc basics
Computers are classified by price, processing speed, capacity, and
asked by Anonymous 
calculus
If f(x) = x + 9 and h(x) = 5x  3, find a function g such that g of f = h.
asked by Taylor 
geometry
Can a parallelogram have four acute angles justify your answer.
asked by crystal 
Biotechnology
What are the active ingredients in cocaine? (What causes people to abuse it?)
asked by Jessica 
algebra
How would you explain to a 6th grader the difference between solving a system of equations by the algebraic method and the graphical method?
asked by Anonymous 
Social Studies
POSITION PAPER With the source provided below write an essay (4 paragraphs) in which you: Identify the ideological perspective(s) reflected in the source. Establish and argue a position in response to the question under discussion. Support your position
asked by Sam 
english
I have a bunch of sentences that I need to change and make them into simple and complex sentences. Can you help so that i know i am doing it right?
asked by marlee 
CSI 115 Logic And Design
Hi I know you have got this same question ask to you a lot, but mine is for week 2 unstead of week 1. This week they want me to come up with and Create the Modular Design for the same subject as week 1, example underneath please. A small startup software
asked by Preston 
grammar
Need to identify five adverbs in this paragraph. I think I am correct but would like a second opinion. Thanks for your thoughts. LITTLE FOCKERS is the “continued” (adverb) antics of Greg and Pam Focker (Ben Stiller and Teri Polo) who “now” (adverb)
asked by Jack 
statistics
Suppose the number of customer complaints per day on the morning shift 612 noon at Doys is distributed as # of complaints f(x) 0 .3 1 ? 2 .2 what is the value of the missing probability? What is the average number of complaints per day on the morning
asked by James 
s.s
antarctica stations worksheet what have ice cores shown that have to do with carbon dioxide?
asked by yuku 
math
Sparky weighs 3/4 of her weight, plus 3/4 of a pound. How much does she weigh?
asked by Mark 
Stupid Algebra
13a squared times b(4a cubed b cubed c) and no, I am not making this up. PLEASE HELPP POOPOO
asked by Poopoo 
physics
If a soccer player kicks a ball with a force of 130 N, what force does the ball impart on the player's foot?
asked by Dres 
Math Helper
Helper I really need ur help with some of my math questions down below, ur the best math tutor on here, need ur help please.
asked by Mathew 
History French Revolution
I'm between letter a and c. In my book it says that it made a relationship between church and state, but im not sure about making the church a department of the state.Help, please. The civil constitution of the clergy in France: a. ended the process of
asked by Nicole Anilom 
optimization
A model space shuttle is propelled into the air and is described by the equation y= (x2/2e) +ex (in 1000 ft), where y is its height in feet above the ground. What is the maximum height that the shuttle reaches?
asked by james 
French
I have a french itinerary that I have to present to the whole class.I was wondering if anybody would help me correct it. My French is not that good, and we will be graded on the mistakes we make..
asked by Vanessa 
History
How does the Quiet Revolution 1960, PQ was elected 1976, referendum 1980, constitution 1982, assimilation 1840, plains of abraham 1759, Distinct society 1990 Cobtributed to the rise of seperatism in Quebec?
asked by Anonymous 
hitory
when was Martain Luther king JR. born
asked by esha 
ENGLISH RICE
The Greek playwright whose tragic heroes bring about their own destruction was ?
asked by ADAM CORN 
3rd grade math
How do I answer this......Barry says 9x8x(any other number) will always be greater than the product of 2x9x4. Do you agree? Explain?
asked by Alexis 
Clocking Tectonic Plates
Explain how you could calculate the average speed of the Pacific Plate over the past five million years, then calculate the value? I tried searching the internet for this, I came up with nothing, and I just don't get this question.
asked by Anonymous 
Geometry
Can a triangle have two obtuse angles justify your answer.
asked by crystal 
scientist
hi i am doing a science fair project.The project is testing memory. The problem is i am not sure how to give the memory test. the article that i found says to give the people that im doing the project on single digit numbers then double digits, but im not
asked by sam 
Physics
How would the speed of Earth’s orbit around the sun change if Earth’s distance from the sun increased by 4 times?
asked by Faith 
PHI.: 103
what fallacy is this? I don't know what colleges are teaching these days! I have just received a letter of application from a young man who graduated from the state university last June. It was a wretched letter – badly written, with elementary errors in
asked by Maria 
statistics
1. Suppose the number of students in line during office hours: # of Students (X) Probability P(X) 0 0.40 1 0.30 2 ???? 3 0.10 a. If you knew that the number of students in line was between 0 and 3, what is the probability that will be 2 students in line
asked by ashley 
MATH!!!!!
there are 15 terms in the expansion of the binomial (a+b)^n. determine the value of n. please explain to me how to come about this! thanks!
asked by Anonymous 
math helpy
Evaluate: 16^3/4
asked by Joanna 
chemistry
how do you calculate the aqueous by product produced when you have the mass of the beaker with the product after it dried and it has dried?!?! im so confused
asked by iman 
Algebre=Please check
Could someone check my answers for these two questions, please? What is the equation of the line which includes points (2,6) and (0,0) y = 3x+1 y = 3x y=3x ( my answer) y = 3x+1 Equation of line with slope m = 3 and including point (5,) is y =  3x+20 I
asked by Jackie 
Chemistry
An object has a mass of 50 grams and a volume of 51 mL would this object float or sink?
asked by Norma 
math
if x, y, and z are positive numbers, with xy = 24, xz = 48, and yz = 72, what is x + y + x? please explain your answer too. thankyou.
asked by marissa. 
Algebra II
Suppose a market research company finds that at a price of p = $20, they would sell x=42 tiles each month. If they lower the price to p = $10, them more people would purchase the tile, and they can expect to sell x = 52 tiles in a month's time. Find the
asked by Nancy 
literacy
could you please give me an example on a poem wich uses personification
asked by reuben 
science
How do you find neutrons in an element from the periodic table
asked by manuel sandoval 
English
Can you pleas help me check these sentences, please? Thank you very much. 1) The book tells about/is about/deals with (are they all correct?) a boy who was killed in a car accident. 2)I liked this year's Christmas holidays because they were very long. 3)I
asked by Franco 
History
What is absolution?? In detail Please :)
asked by Anna 
Social Studies
How many people (Jews, NonJews, etc.) died in concentration camps during the Holocaust in WWII?
asked by Emma 
8th grade Math
Hi I need help with my math problem. It is: Name the function rule from the table given. Table X= Y= 4 4 2 2 0 0 answers: y = x y = 4 y = 2x y = x I do not get how to solve this problem!
asked by Lina 
nuclear engineering
Determine the amount of energy required (in MeV) to dissociate the following elements into component parts (protons, neutrons and electrons) • Hydrogen • Deuterium • Tritium
asked by Jack 
physics
When two identical ions are separated by a distance of 4.0×10^−10 , the electrostatic force each exerts on the other is 5.7×10^−9 . How many electrons are missing from each ion? what i did was used coulombs law to find the value of q1 and q2 , so
asked by Cassie 
math
if there are 24 marbles in a set,how many are 2/4 of the set?
asked by Aundrea 
science
Which is traveling faster, a car going 8km/h or one going 55mi/h?
asked by Tori 
Physical Science
If we changed our speed limit to metric, what would probably replace 10.mi/h? (please round to th enearest 1km/h.)
asked by Tori 
Precal
What are the roots, real and imaginary of: Y=x^46x^3+9x^26x+8
asked by Breana 
science
Do you use genotypic ratios for blood types?
asked by Jacob Cobbs 
3 G Math
How do I answer this......Barry says 9x8x(any other number) will always be greater than the product of 2x9x4. Do you agree? Explain?
asked by Alexis 
physics
a 65kg student holding a 5 kg ball is at rest on ice. if the student throws the ball at 3m/s to the left, what is her velocity after throwing the ball
asked by bebe 
Documents
What does it mean by Enclosed Documents? documents that I am going to send or that are required
asked by Amy~ 
math
Is 2340 divisible by 90 how do you know? In Math please answer quick
asked by pearl sunshine 
math
whch division sentence will give an answer that is not in equal groups? 26/4 35/7 42/6 or 45/5
asked by joe 
Comprehensive science ADV
Overview: Enviromental problems, Endangered animals are becoming endangered one of the examples are the panamian godlen frog. And when i posted the first question it was the wrong one!! The real one is... Question: Describe What is being done to save
asked by Enviromental Problems 
physics
a coil having 1000 turns and a length of 3.14cm carries a current of 5A. calculate the magnetomotive force and the magnetizing force.
asked by danny boan 
math
substitution 4x + 3y = 3 7x  9y = 6
asked by al 
algebra
13=3(x+2)10
asked by molly 
history
Explain the significance of the thinking and writing of Noah Webster and Thomas Jefferson
asked by Hasim 
Biology (immune system)
How does the immune system help maintain homeostasis? Help me please :(
asked by Marie 
Chemistry
Chemical equation of: 1.Digesting of food 2.Fermentation of Wine 3.Burning of fuel
asked by Andrew 
algebra
/6x^22 = 2x /=radical sign
asked by math 
Social Studies
Here are some questions i need help on. Ture or False 1.Grmans came from an area of Germany that had been devastated during a numder of wars. 2.Quaker women parted fully in religious affairs.
asked by Alex 
algebra
1/x+2  2/x+3 = 3/x^2+5x+6
asked by math 
geometry
Paul claims, the probability of rolling a sum of 6 when you roll two dice is 1/11, because two dice have sums 2 through 12 which means there are 11 possible sums. "How do you respond?"
asked by crystal 
World History
I'm trying to answer an essay question asking me to describe Islamic principles or characteristics that are unsettling when an American considers the role that Islamic extremists have played in terrorist attacks. Any idea where to look for good examples?
asked by Kayla 
geometry
If AC = 20 centimeters, and BC = 16 centimeters, what does AB equal?
asked by paige 
History
when was Martin Luther King JR. born
asked by esha 
Chemistry
methanol and aluminum are reacted. how many moles of methanol must burn to raise the temperature of 100g of aluminum by 80 degrees Celsius?
asked by Ashlee 
Prealgebra
solve: 4(43x)+14x>32
asked by JA 
english
can somone help me compare and contrast twilight and beowolf? (the characters etc)
asked by edward 
geometry
A girl wants to calculate the height of her family's teepe. She iss 112 cm tall and she finds that when she is inside and stands so that hher head touches the side, her feet are 64 cm from the edge. If the teepe is a right circular cone with a diamter of
asked by crystal 
Geometry
If eacj dimension of a box is quadrupled, how are the surface area and the volume affected?
asked by crystal 
Math
Write an equation in slopeintercept form of the line that passes through the given points. 1. (3,4), (1,4) 2. (3, 2), (6,1)
asked by Melanie 
Definition
Could u please define this word to me as simple as possible. "Plume"
asked by Anonymous 
Pre Calc
The halfLife of radioactive earthium is 2651 years. Find how many years it will take 100 grams of earthium to decay to 10 grams. I know the equation is A=Ae^(rt) I tried working it out but I think I am doing it wrong. I did 10=100e^(r*2651) Can anyone
asked by Alex 
trigonometry
can you explain to me in details please of how these type of questions can be answered without using a calculator to find the direct answer. Find the following functions correct to five decimal places: a. sin 22degrees 43' b. cos 44degrees 56' C. sin
asked by anon 
math
solve by factoring. x^2+5x+6=0
asked by jenna d 
MATH!!!!!!!
state whether or not a constant will appear in the expansion of (x+y)^11 what does this mean? please help
asked by Anonymous 
MATH
Solve for y in the following system of equations: x  y = 1 3x + 5y = 21
asked by Emily 
earth
what is an eleven letter word produced by geothermal plant
asked by regina 
Trigonometry/ Please Help
Find two exact values of sin(cosˉ¹√5/6)
asked by CJ 
Calc.
a)If f(x)= x/(x+2), 1 less than or equal to x less than or equal to 4, find the left and right sums for n= 10, 30, and 50. b)Illustrate by graphing the rectangles in part a. c)Show that the exact area under f lies between 1.603 and 1.624. So this is all I
asked by CMM 
algebra
evaluate polynominal x=2 3x^3+7x^23x2
asked by sarah 
anytihing, i graduated from harvard
will the world end on 2012
asked by larry 
Math
on july 16, 1882, a massive thunderstorm over Dubuque, Iowa, produced huge hailstones. The diameter of some of the hailstones was 17 in. ICe weighs about 0.033 lb/in^3;. Whas is the approximate weightof a 17 in. hailstone?
asked by Ellie 
science
WHAT ELEMENT OR ATOM INTERACTS WITH CARBON
asked by Daniela 
World studies
What were some social issues in Romania?.
asked by Sam 
religion
How did Calvinism end and how?
asked by Bob Lee 
math
n+2/3=1/9
asked by me 
Ethnicity
list two or three charactersistics of Orientalism
asked by Anonymous 
Health
It ask me describe the 3 elements of Health i got all but one and it wants me to define what mental health is.
asked by Ian 
engineering
If a source is emitting particles at a rate of 15,000 particles per second, what is the flux at 30 cm away from the source?
asked by julie 
writing
in class can you writ in cursiv
asked by esha 
math/trig
I have two questions as I review for a test tommorow, any help is much appreciated!! Solve: 1) 4sin^2x=2cosx+1 2) cscx+cotx=1
asked by Michael 
U.S History
How has media affected American Society through out history? Provide Three Examples.
asked by jessica 
Equations
Hi..I am pretty sure of this answer just need confirmation. THANK YOU! (6x^25x+17)+(8x^2+9x55)= 14x^2+4x38.
asked by AMY 
math
if there are 24 marbles in a set,how many are 2/4 of the set?
asked by Aundrea 
math (fractions)
could you show me how to multiply 1/3 and 3?
asked by popcorn010 
4th grade
i need help solveing crossword puzzle
asked by dk 
Clocking Tectonic Plates
Explain how you could calculate the average speed of the Pacific Plate over the past five million years, then calculate the value? These plates are in constant motion travelling at a few centimetres per year. This is the information I found, but I still
asked by Anonymous 
com/155
Review pp. 517–520. Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine
asked by dan 
math
what is the resipical of 9
asked by jose 
statistics urgent
Consider all cars that are involved in an accident and assume that all cars are classified as either small or large. The probability that a small car is involved an accident is .2 if a small car is involved in an accident, the probabbility that there was
asked by James 
algebra
if the perimeter is 72 than how much square feet of carpet would you need?
asked by Anonymous 
World History
How was the grenade developed to help the war effort?
asked by Maria 
stats help!
What 2 numbers is the emperical rule of 95% between if the P of no shows is .10 and the average party size is 10
asked by Lauren 
Chemistry  help thanks
A supplier provides "Chemical A, 98%, for synthesis". Another supplier provides "Chemical A,98%, Lab grade" Are they equivalent? Which is better for analytical use? Thanks.
asked by candy 
math
n+2/3=1/9
asked by me 
half life
If the radiological half life of a material is 31 minutes, and you have 77 grams now, how much did you have 55 minutes ago?
asked by julie 
Equations
Just need confirmation. I believe it is correct. THANK YOU SO MUCH. (x^2+x+3)(x3)=x^32x^29
asked by AMY 
pc basics
Which one of the following is most directly related to your printer's output?
asked by Anonymous 
possessive nouns
the chirps of the baby birds are quiet.
asked by omar 
Math
5% interest rate for 5,000,00 how much after 4 years
asked by Amber 
english
Is "A choking gall and a preserving sweet." a gerund of gerund pharse.
asked by Rick 
math
If you borrow $5,000 at an APR of 5%. Find the interest, I after 36 months
asked by Amber 
IT Data transmission
Hi, Can someone check this for me please.. 18 MB of data are to be transmitted over a 4 megabits per second connection. How long should the complete transaction take, to the nearest 0.1s. Size of file / data rate so, 18MB x 10^6 x 8 bits = 144,000,00 4
asked by freddo 
science
a marathon race is 42.2km. what is the length of a marathon in meters? recall that 1000m= 1km.
asked by nisha 
Calculus
solve x2x+1>3
asked by Zukii 
math
2x^2x3=0
asked by jenna d 
8th grade math
Kyoka holds the world record for earning the most points in this arcade game with a high score of 256 points. If Kyoka did not miss any of the 114 shots she took to set this record, what percent of those shots were made during the final 10 seconds of the
asked by Anonymous 
binomials math
expand the following binomials (2x1)^5 (x+3y)^3
asked by Anonymous 
Math
How can I tell if 3360 is divisible by 24 without doing division?
asked by Abida 
algebra
x^2+4x47 x+8
asked by sarah 
MATH
why would you use the measurement 3yd 2ft instead of 2yd 5ft?
asked by julian 
honors chemistry
Which gas has solubility in water (at STP) of 3.39 L at 10.0°C?
asked by bob 
math
4=4/9+y
asked by me 
math
what is the mean for the family sizes of 12,8,6,5,4, people? explain your answer.
asked by esha 
english
what are some ways to save and store your personal financial information
asked by lashonda 
math
4(x^8)=84
asked by Michelle 
algebra
what is the estimate for 5 1/3 x 24?
asked by Anonymous 
math
WHAT IS THE RATIO OF 9 AND 12
asked by Anonymous 
Algebra 2 Trig Honors
logof3(x1)+ logof3(3x1)=2
asked by Anonymous 
math
factor it. 81r^236rs+4s^2
asked by jenna d 
Health
is it bad to do the same kind of sit ups every night?
asked by Sara 
percentage
you have 50 students one day and 70 the next what is the percentage increase
asked by Leon 
world history
explain how the alliance system involved countries with no other national security interest involved.
asked by zelda 
Language Arts
What is a similecliche?
asked by Juliane 
math
2x3y=12 x=4y+1 substitution, elemenation
asked by katie 
government
how do the articles get changed?
asked by Anonymous 
computer science
which is better live support or email?
asked by unknown