Questions Asked on
May 5, 2014

speech
traditional african marriage is an advantage for men only not women?
asked by precious 
Science help ASAP
1. In which way does the circulatory system rely on the skeletal system? Glucose is secreted by compact bone as an energy source for blood. Spongy bone stores minerals needed by blood cells. Bones provide a source of oxygen to blood. Blood cells are
asked by Anonymous 
Chemistry
Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity, CH3CH20H(l)+ 3O2(g)> 2CO2(g)+3H2O Use thermodynamic data to determine the value of E°cell for this cell at 25 °C. I don't really know where to start. I got the
asked by Sophie 
math?
how do i figuire this problem out? .. A deepsea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called “the bends.” Suppose the
asked by matt 
Chemistry
Calculate the enthalpy change for the reactions NO(g) + O(g) → NO2(g) from the following data: NO(g) + O3(g) → NO2(g) + O2(g) ΔH = 198.9 kJ O3(g) → 1.5O2(g) ΔH = 142.3 kJ O2(g) → 2O(g) ΔH = 495.0 kJ Put the answer in kJ.
asked by Chris 
English
Use a __________ after an independent clause that introduces a clause, a phrase, or even a single word that explains the original clause. A. comma B. colon C. semicolon D. dash
asked by Angela 
English
Which of the following is used for titles of subdivisions of published works, such as chapters of a book? A. Quotation marks B. Underline C. Italics D. Bolded text D
asked by Angela 
math graphs
4. Which equation would you use to find out if the two lines in the graph are parallel? (1 point) LINE #1: point a: 1, 4 point b: 2, 1 LINE #2: point c: 3, 3 point d: 1, 1 a. 4  1/2  1 = 3  1/3  1 b. 4  1/2  1 = 3  (1)/3  (1) c. 4  1/1 
asked by Divergent Dauntless 
English
Which of the following is NOT considered to be a short introductory expression? A. Okay B. Yes C. Oh D. Well A
asked by Angela 
Chemistry
Given the thermochemical equation 2SO2 + O2 → 2SO3, ΔH°rxn = 198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO3?
asked by Chris 
English
Identify the sentence that is punctuated correctly. A. Researchers know little about the distinctive market behavior of that group. B. Website programming systems have existed for some time but, they originally were difficult to use. C. In connection with
asked by Angela 
English
Identify the correct sentence. A. Wilma does'nt have too much trouble distinguishing between "their, there, and theyre." B. Wilma doesn't have too much trouble distinguishing between their, there, and they're. C. Wilma doesn't have too much trouble
asked by Angela 
Chemistry
The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.187 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 26.5°C, what is the minimum temperature reached by the solution? [specific heat of water = 4.18 J/g°C; heat capacity
asked by Chris 
English
Choose the correct use of apostrophes in the next sentence. Marcs ambition is to buy his uncles 1947 Dodge and restore it to its original condition. A. No apostrophes needed B. Apostrophes in “Marcs” and “uncles” C. Apostrophes in “Marcs” and
asked by Angela 
One Algebra Question~!
The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 7 hours to drive the distance at 55 miles per hour, how long will it take to drive the same distance at 65 miles per hour? (1 point)
asked by Gabby 
English
Identify the sentence that is correctly punctuated. A. When the police recover the lost merchandise—a diamond bracelet, they will notify you. B. When the police recover the lost merchandise (a diamond bracelet), they will notify you. C. When the police
asked by Angela 
English
Whereas a semicolon separates, a colon usually: A. is a mark of introduction. B. denotes items in series. C. follows a transitional expression. D. concludes a sentence. B
asked by Angela 
math
Loan amount = $10,000 Monthly payments = $258.50 Time of loan contract = 5 years True annual interest rate (to the nearest tenth) =
asked by wilton 
English
Identify the sentence that is correctly punctuated. A. Clara did not study very much for her biology test, therefore, she guessed at many of the answers. B. Clara did not study very much for her biology test; therefore she guessed at many of the answers.
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. Boston, Massachusetts played an important role in American history and politics. B. Boston, Massachusetts played an important role, in American history and politics. C. Boston, Massachusetts, played an
asked by Angela 
~Algebra question~
The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 7 hours to drive the distance at 55 miles per hour, how long will it take to drive the same distance at 65 miles per hour? (1 point)
asked by Gabby 
English
Never divide: A. the last word on a page. B. a word less than two syllables. C. a contraction. D. All of the above D
asked by Angela 
English
The appropriate mark to introduce a bulleted list is a: A. colon. B. semicolon. C. period. D. No punctuation A
asked by Angela 
Math
Mr. Farmer plans to harvest 305% of what he sows. How many bushels of corn must he sow to reap 900 bushels?
asked by Rhett cowley 
English
The only acceptable way to divide words at the end of a line is: A. to let the computer decide. B. before the last three letters. C. between syllables. D. after the first three letters. C
asked by Angela 
chemistry: please check work
How many grams of solute are contained in 64.3 mL of 0.0238M KOH? Do I convert 64.3ml to L=.0643L Multiiply .0643L and .0238M KOH=.00153 Multiply .00153 and 56.105 g/mol KOH=.0858g KOH
asked by Suzanne 
physics
Which of the following statements is not true about resonance? Answer It is easy to get an object to vibrate at its resonant frequencies but difficult to get it vibrate at other frequencies. A simple pendulum has many resonant frequencies called harmonics.
asked by m 
English
The mens clothing shop also does alterations, so Robin brings her dresses and skirts there to be hemmed. A. No apostrophes needed B. Apostrophe in “mens” C. Apostrophes in “mens” and “alterations” D. Apostrophes in “alterations” B
asked by Angela 
English
Identify the correct sentence. A. The high school is located at 15385 Sheridan St., Pembroke Pines, FL. B. The high school is located at 15385 Sheridan Street, Pembroke Pines, Florida. C. The High School is located at 15385 Sheridan Street, Pembroke Pines,
asked by Angela 
English
My father was a hard working man but didn't earn much money. A. Correctly punctuated B. Add a comma after hard C. Close up hard working D. Add a hyphen after hard A
asked by Angela 
science (weather & climaate
Science 6 B  Weather and Climate Unit Test i go 2 conections acedemy
asked by Melia Pinter 
Physics
The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at which it reverses
asked by HELP PLZ 
English
Identify the sentence that is punctuated correctly. A. These products may not seem as exciting as they did in the past but maybe that's the time to do a little buying. B. Prior to Webster's complete twovolume edition he had compiled three shorter and
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. The operating costs, as he probably told you, are too high. B. The operating costs, as he probably told you are too high. C. The operating costs as he probably told you, are too high. D. The operating
asked by Angela 
English
The semicolon separates: A. divisions of time. B. titles and subtitles. C. long or formal quotations. D. equal and balanced sentence elements. D
asked by Angela 
English
Which of the following means expressing someone else's exact words? A. Direct quotation B. Paraphrasing C. Plagiarizing D. Indirect quotation B
asked by Angela 
English
Identify the correct sentence. A. The River in Hackensack, New Jersey overflowed during Hurricane Sandy. B. The river in Hackensack, NJ overflowed during hurricane sandy. C. The river in Hackensack New Jersey, overflowed during Hurricane Sandy. D. The
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. He whispered, "I love you," and then fainted. B. "Your idea is excellent" said Matt, "but I'm not sure we have the budget to implement it." C. "I don't believe it!" exclaimed, Mr. Ripley. D. She
asked by Angela 
English
When addresses appear within the text of a document,: A. always abbreviate the street, city, and state. B. it is optional to abbreviate the parts of the address. C. spell out the parts of the address. D. always abbreviate the street and city and spell out
asked by Angela 
English
When addresses appear within the text of a document,: A. always abbreviate the street, city, and state. B. it is optional to abbreviate the parts of the address. C. spell out the parts of the address. D. always abbreviate the street and city and spell out
asked by Angela 
English
To indicate a word is slang or informal usage,: A. enclose it in quotation marks. B. explain it in parentheses. C. underline it. D. None of these; do not use slang or informal terms. A
asked by Angela 
physics
A beam of electrons moving in the xdirection at 8.3Mm/s enters a region where a uniform 240G magnetic field points in the ydirection. The boundary of the field region is perpendicular to the beam. How far into the field region does the beam penetrate?
asked by tali 
English
Identify the correct sentence. A. Somethings are better left unsaid. B. Somethings are better left unsaid. C. Some things are better left unsaid. D. Some things are better left unsaid. D
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. Generally speaking, principals are responsible for the acts of their agents. B. Generally, speaking principals are responsible for the acts of their agents. C. Generally speaking, principals are
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. She is wearing a new yellow dress, and looks clean and neat. B. The Kingdom of Bahrain has a settled welleducated population. C. He thinks that an apple a day keeps the doctor away. D. Working 95
asked by Angela 
speech
traditional african marriage is an advantage for men only not women,?
asked by precious 
English
Identify the sentence that is punctuated correctly. A. He whispered, "I love you," and then fainted. B. "Your idea is excellent" said Matt, "but I'm not sure we have the budget to implement it." C. "I don't believe it!" exclaimed, Mr. Ripley. D. She
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. The cost and size of computers decreased, as rapidly as processing power increased. B. An operating system is the set of instructions, that directs the overall operations of the computer. C. While
asked by Angela 
English
The main use of brackets in writing is to: A. mark an interruption in a quotation. B. note an error in a quotation. C. indicate an omission from a quotation. D. indicate an alteration in a quotation. D
asked by Angela 
Math
Last year's sales were $14,200. Sales have increased 57% this year. How much is the increase?
asked by Rhett cowley 
Calculus
Why does 2ln6  2ln3 = ln4?
asked by Ann 
Precalculus
1. In an arithmetic sequence, the fifth term, u5, is greater than the first term, u1. The difference between these terms is 36. a) find the common difference 9? The tenth term of the sequence is double the seventh term . b) find u1 2.5? 2. Consider the
asked by Anonymous 
English
A __________ is always placed after a closing quotation mark. A. semicolon or comma B. semicolon or colon C. period or question mark D. period or comma C
asked by Angela 
Math
Jane walks one mile from her house to her grandparents’ house. Then she returns home, walking with her grandfather. Her return rate is 70% of her normal walking rate. Let r represent her normal walking rate. a. Write an expression for the amount of time
asked by Anonymous 
english
traditional healers should be allowed to practise and prescribe medicine in hospitals and clinics
asked by mpho 
Chemistry
Consider the following reaction at constant P. Use the information here to determine the value of ΔSsurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature. 4 NH3(g) + 3 O2(g) → 2 N2(g) + 6 H2O(g); ΔH = 1267 kJ
asked by Jeff 
Algebra
Simplify. x/(7x+x^2) • 1/(7+x); where x ≠7 • 1/(7x); where x≠0 • 1/(7+x); where x≠0,7 • 1/7 How?
asked by Sandra 
Chemistry
What volume of 1.25M HCl in liters is needed to react completely (with nothing left over) with 0.750L of 0.300M Na2CO3?
asked by Jenn 
Chemistry
A piece of copper metal is initially at 100.0°C. It is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperature of 20.0°C. After stirring, the final temperature of both copper and water is 25.0°C. Assuming no heat losses, and
asked by Chris 
chemistry
The cell shown above is a concentration cell. Both cells contain a copper solution and have copper electrodes. The only driving force for this cell is the difference in the concentration of the copper solutions. The system will react to equalize the
asked by bekah 
Math
Of the 103 people enrolled in mathematics class, 91% are present. How many are present?
asked by Rhett cowley 
Chemistry
Given 2Al(s) + 3/2O2(g) → Al2O3(s), ΔH°f = 1,670 kJ/mol for Al2O3 (s). Determine ΔH° for the reaction 2Al2O3(s) → 4Al(s) + 3O2(g).
asked by Chris 
Physics
A wheel turns through 90.0 revolutions in 15.0 sec. The angular speed at the end of this 15.0 sec period is 10.0 rev/s. Assuming that the angular acceleration is constant, calculate a) the angular speed at the beginning of the 15.0 sec interval, and b) the
asked by TP 
ALGEBRA
Multiply: (K+3)/(4K2)*(12K^2 + 2k – 4) • 3(k+3)/(3k+2) • 3(k+3)(2k1)/2 • (x5)(3x+2) • (x5)(12x+8) How? 11
asked by Sandra 
Science
Explain the energy transformations during skydiving? please note: that I need to EXPLAIN!!! Thank you very much in advance...your help is very much appreciated!! x
asked by Anonymous 
chemistry
How many grams of copper will be deposited at the cathode of an electrolytic cell if a current of 680.0 mA is run through a 2.5 M solution of copper sulfate for 20.0 minutes?
asked by bekah 
English
Identify the sentence that is correctly punctuated. A. Clara did not study very much for her biology test, therefore, she guessed at many of the answers. B. Clara did not study very much for her biology test; therefore she guessed at many of the answers.
asked by Angela 
English
Identify the sentence that is punctuated correctly. A. Although, the impact on our planet is clear global warming was not a high priority for many years. B. Although the impact on our planet is clear, global warming was not a high priority for many years.
asked by Angela 
math
You are thinking of adding one of two investments to an already well diversified portfolio. Security A with expected return of 12%, standard deviation of 20.9%, and beta of 0.8. Security B with expected return of 12%, standard deviation of 10.1%, and beta
asked by mamey 
math
The student council has decided to sell tshirts for a fundraiser. The printing company charges a $75 setup fee plus $3 per shirt. The student council plans to sell their tshirts for $12 per shirt. Write a function p(t) to represent the student council's
asked by Erica 
Physics
The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at which it reverses
asked by Lisa 
Chemistry
A 271g sample of nickel at 94.1°C is placed in 100.0 mL of water (density = 1.00 g/mL) at 23.9°C. What is the final temperature of the water? [Assume that no heat is lost to or gained from the surroundings. Specific heat capacity of nickel = 0.444
asked by Chris 
math
As compared to its first year of operation, ABC Company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 24 was $45,000 over the first year’s sales of $150,000, how much did ABC Company grow in
asked by Anonymous 
general science
if an object is thrown 60 m into the air and it takes the object 6 s to get there, what's the average speed of the object? (A) 20m/s (B) 360 m/s (C) 100 m/s (D) 10 m/s
asked by christina 
Science
Explain the energy transformations during skydiving? please note: that I need to EXPLAIN!!! Thank you very much in advance...your help is very much appreciated!! x
asked by Anonymous 
History
Mark the statement if it describes Roman society during the time of Cincinnatus. A. Rome’s government was based on law in which many people had a voice. B. Rome was being surrounded and threatened by outside forces. C. People in Rome admired those who
asked by Brianna 
chemistry
A sample of oxygen gas is collected by displacement of water at 25°C and 1.17 atm total pressure. If the vapor pressure of water is 23.756 mm Hg at 25°C, what is the partial pressure of the oxygen gas in the sample?
asked by Edith 
physics
Does increasing the force affect the amount of work done climbing the stairs? Does increasing the distance affect the amount of work done climbing the stairs? How would you describe the mathematical relationship between these two parameters
asked by Rin 
english
traditional african marriage is an advantage for men only ,not women?
asked by Anonymous 
Math
On Team B 80% of the football players weigh more than 200 pounds. If 41 men are on the team, how many weigh more than 200 pounds?
asked by Rhett cowley 
Chem 130
When calcium carbonate is heated strongly, carbon dioxide gas is released. CaCO3(s) CaO(s) + CO2(g) What volume of CO2(g), measured at STP, is produced if 14.1 g of CaCO3(s) is heated?
asked by jackie 
Chemistry
The fluoride ion concentration in a saturated solution of magnesium fluoride, MgF2, is 2.3 103 M. Calculate the value for the equilibrium constant.
asked by Harry 
Algebra
Simplify into one fraction. 3/(x3)5/(x2) • (2x + 9)/(x3)(x2) • (2x)/(x3)(x2) • (2x 9)/(x3)(x2) • (2x+9)/(x3)(x2) How?
asked by Sandra 
Physics
What is the turntable’s angular velocity at t = 4.0s ?
asked by TLP 
English
Identify the sentence that is correctly punctuated. A. It is not always necessary; however, to check the entire set of books. B. It is not always necessary, however; to check the entire set of books. C. It is not always necessary, however, to check the
asked by Angela 
Math
A boat travels 74 miles on a course with direction 34 degrees and then changes its course to travel 58 miles at 53 degrees. How far north and how far east has the boat traveled on its 132mile trip? A 87.7 miles east and 44.3 miles north B 35.7 miles east
asked by Ana 
Chemistry
Aniline, C6H5NH2, is a weak base. If the hydroxide ion concentration of a 0.201 M solution is 9.2 106 M, what is the ionization constant for the base?
asked by Harry 
physics
two children sit at opposite ends of a 60 lb. 10 ft. seesaw which is pivoted at its center one child weighs 50 lbs. and the other 75 lbs. the seesaw is uniform so that its center of gravity is at its geometric center, which also is its pivot point. A) the
asked by gelli 
Math
Raimo borrowed $750 from Chris on October 30 and agreed to repay the debt with simple interest at the rate of 12.3% on May 10. How much interest was owed on May 10? Assume that February has 28 days.
asked by Anonymous 
math
If you put $ 6,000 in a savings account that pays interest at the rate of 4 percent, compounded annually, how much will you have in five years? (Hint: Use the future value formula.) How much interest will you earn during the five years? If you put $ 6,000
asked by tota 
science
Which experimental approach would be the most effective and easiest to clearly determine the evolutionary relationship between these 2 organisms? The 2 organisms are a starfish and snake. A. Sequence the same gene in both species to compare their
asked by brianna 
math
Determine the annual net cost of these checking accounts: a. Monthly fee $ 4, check processing fee of 20 cents, average of 23 checks written per month b. Annual interest of 2.5 percent paid if balance exceeds $ 750, $ 8 monthly fee if account falls below
asked by tota 
Chem 130
Suppose two 100.0 L tanks are to be filled separately with the gases helium and hydrogen. What mass of each gas is needed to produce a pressure of 155 atm in its respective tank at 22°C?
asked by michelle 
math 2 questions!!!
7. Find the slope of a line that is parallel to the line containing the points (3, 4) and (2, 6). (1 point) m = 1 m = 2 m = –2 m = 1/2 8. Find the slope of a line that is perpendicular to the line containing the points (–2, –1) and (2, –3). (1
asked by TTR+S<3 
Trigonometric Functions
A person is riding a ferris wheel that turns at a constant speeed. The lowest point of the ferris wheel is at ground level. Another person is standing at the side of the wheel on a platform 4m above the ground. She notes the times that the person on the
asked by REALLY URGENT 
physics
A crane slowly lifts a cement slab weighing 2,500 N to a height of 12 m. The slab is accidentally dropped. What is its KE as it hits the ground?
asked by Anonymous 
Pre  Cal
1. Find the vertex of the parabola: 4y^2+4y16x=0 2. Find an equation of the parabola, opening down, with vertex (3,1) and solution point (4,5). 3. The main cables of a suspension bridge are 20 meters above the road at the towers and 4 meters above the
asked by Veronica 
Social Studies
Explain why you think Matthew Lyon is an important figure in American History and why he should be included in the Register. Would it be that no other American has illustrated more thoroughly than Matthew Lyon the excellence of democratic institutions in
asked by Anonymous 
chemistry
How many grams of sodium hydroxide (NaOH) are needed to prepare 250 mL of a 0.20 M (mol/dm3) sodium hydroxide solution?
asked by pippiserra 
american history
Which of the following statements about the Southern planter's world is most accurate? A. Most great planters of the Old South were selfmade men. B. The stereotype of the "southern belle" is fairly accurate. C. The wives and daughter of plantation owners
asked by mari 
english
Which propaganda technique is used in this sentence? The candidate I endorse believes to his very soul that this change would destroy this lovely community and its soul by disrupting you, its heart and soul.
asked by Anonymous 
ALGEBRA
The temperature, T, of a given mass of gas varies inversely with its volume, V. The temperature of 20 cm3 of a certain gas is 15°C. What will the temperature be when it is compressed to a volume of 5 cm3? • 10°C • 300°C • 6.67°C • 60°C How?
asked by Sandra 
Chem 130
A sample of oxygen gas is collected by displacement of water at 25°C and 1.11 atm total pressure. If the vapor pressure of water is 23.756 mm Hg at 25°C, what is the partial pressure of the oxygen gas in the sample?
asked by michelle 
Mathematics, simplify
5ac+10ab25ad
asked by Courtney 
Math
Asher cashed in a oneyear term deposit after only five months had elapsed. In order to do so, he accepted an interest rate penalty—a reduction from the scheduled 5.5% rate of simple interest. If he was paid $145.83 interest on the $10,000 term deposit,
asked by Anonymous 
Math
Mr Shen wished to enter the orange kite competition with an innovative kite of his own design. He did tests that showed an irregular quadrilateral design was best. The longest side (A) was twice the length of the shortest side (C). Side B was one and
asked by Christopher 
American Government
Presidents often resort to the use of White House “czars” because
asked by Darcell 
Social Studies
Compare and contrast how the United States and Canada achieved independence.
asked by Stasia 
statistics 101 college
28 randomly picked people were asked if they rented or owned their own home, 20 said they rented. Obtain a point estimate of the proportion of home owners and round the point estimate to the nearest thousandth
asked by tb 
chemistry
Calculate the volume of 2.0 mol dm^3 sulphuric acid,H2SO4 needed to prepare 2.5 dm^3 of 0.5 mol dm^3 of the same acid solution.
asked by mandy 
Chemistry
A 495mL sample of unknown HCl solution reacts completely with Na2CO3 to form 18.1g CO2. What was the concentration of the HCl solution?
asked by Jenn 
English
dentify the correct sentence. A. Carla went to work at 248 Prospect Ave in Brooklyn, NY. B. Carla went to work at 248 Prospect Avenue in Brooklyn, NY. C. Carla went to work at 248 Prospect Avenue in Brooklyn, New York. D. Carla went to work at 248 Prospect
asked by Angela 
Algebra Question~!
A company invests $15,000.00 in an account that compounds interest annually. After two years, the account is worth $16,099.44. Use the function in which r is the annual interest rate, P is the principle, and A is the amount of money after t years. What is
asked by Gabby 
pre calculus
a gun with a muzzle velocity of 1200 feet per second is fired at an angle of 6 degrees above the horizontal. find the component form of a vector. verify the magnitude
asked by brittany 
Programming
Develop a menudriven program that inputs two numbers and, at the user's option, finds their sum, difference, product, or quotient.
asked by Anonymous 
Social Studies
In what ways could the American Revolution be considered a Civil War? The Patriots opposed the Loyalists. Those who supported the King were known as Loyalists. Those who supported separation from the King were called Patriots. An agreement could not be
asked by Anonymous 
math
Marco jumped rope for 20 more seconds than Troy. The letter r represents the number of minutes that Troy jumped rope. Which expression shows the number of minutes that Marco jumped rope?
asked by brianna 
Calculus
Can someone check my answer? The change in the momentum of an object (Δ p) is given by the force, F, acting on the object multiplied by the time interval that the force was acting: Δ p = F Δt . If the force (in newtons) acting on a particular object is
asked by Samantha 
Algebra
An artifact was found and tested for its carbon14 content. If 74% of the orginal carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a half life of 5730 years).
asked by Kim Johnson 
Math
If a navigation error puts a plane 2 degrees off course, how far off course is the plane after flying 121 miles? Round to the nearest tenth of a mile. Just explain how to solve, please.
asked by Ana 
math
The most important rule for establishing a savings plan is to
asked by tota 
Chemistry
Zn+HCl>ZnCl2+H2 If you measure the total volume of collected gas over water at 65*C to be 728 mL at a total pressure of 845 torr, how many milliliters of 2.6 HCl would be required to produce the correct amount of hydrogen?
asked by Brandie 
math
on a blueprint for s house front of the house is shown 12 in. wide and 14 in. tall if the front of the actual house is 30ft wide how tall is the house?
asked by shykiah 
Algebra
Solve. (–10x3 + 30x – 20) ÷ (–5x + 5) • 2x2 – 2x + 4 • –2x2 – 2x – 4 • –2x2 + 2x + 4 • 2x2 + 2x – 4 How?
asked by Sandra 
chemistry
Concentrated phosphoric acid,H3PO4 was added slowly into some water to produce 5.0dm^3 of a dilute acid solution.100g of the pure phosphoric acid,H3PO4 was present in the solution.Find the concentration of the acid,in g dm^3.
asked by mandy 
Science
Human blood type is determined by codominant alleles. There are three different alleles, know as I^a and I^b alleles are codominant and the i allele is recessive. The possible human phenotypes for blood group are type A, type B, type AB, or type O. Type
asked by Anonymous 
Math
An airplane, after 1 hour in the air, arrives at a point 350 miles south of its departure point. There was a steady wind of exactly 25 mph from the northwest during the entire flight. Which represents the airplane's average air speed?
asked by Ana 
Chemistry
A system initially has an internal energy U of 493 J. It undergoes a process during which it releases 107 J of heat energy to the surroundings, and does work of 225 J. What is the final energy of the system, in J?
asked by Chris 
Algebra
Simplify. (3/5a)*(1/a^2) • 3/5a^2; where a ≠ 0 • 3/5a^2 • 3/5a^3; where a ≠0 • 4/5a^2; where a ≠0 How?
asked by Sandra 
chemistry
An 0.727 mol sample of argon gas at a temperature of 22.0 °C is found to occupy a volume of 26.2 liters. The pressure of this gas sample is how many mm Hg?
asked by Sarah 
Chem
The following results were obtained when a sample of pineapple juice was analyzed to determine its vitamin C content. A 19.8 mL sample of pineapple juice was placed in a flask with 20 ml of 0.5 M H2SO4, 1.0 g of potassium iodide, KI, and 25.00 mL of
asked by Anonymous 
science
How many liters of a 0.80%\% (m/v{\rm m/v}) NaCl{\rm NaCl} solution can be prepared from 500mLmL of a 9.0%\% (m/v{\rm m/v}) stock solution?
asked by Lanita 
math
You’re getting married and are unhappy with your present bank. Discuss how you should go about choosing a new bank and opening an account. Consider the factors that are important to you in selecting a bank— such as the type and ownership of new
asked by tota 
Career choices
I do maths lit,acco and life science ,what Career should I follow
asked by phow 
Chemistry
Write the equilibrium constant expression for each of the following reactions: A. 4NO(g)+2O^2 2N^2O^4(g) B. 2NO(g)+ Br^2(g) 2NOBr(g) C. CO(g)+ 2H^2(g) CH^3OH(g) D. SO^2(g) + NO^2(g) SO^3(g) + NO(g)
asked by Andrew 
Physics
A fisherman who lives in a high rise apartment building in Toronto, weighs a fish on a spring scale and records a 11.2 N reading. He reweighs the fish while he is in his elevator and records a reading of 13.1 N. What is the acceleration of the elevator at
asked by Corey Brown 
physics
Stuck on this homework problem, any help would be appreciated. Thank you!! A truck has 5.9L diesel engine in it. 5.9L of the overall displacement in 6 cylinders each 102mm bore (diameter) and 120mm stroke (length). Engine operates at 16.3:1 compression
asked by xyz 
Teachers aide
Resiliency in children is best fostered by
asked by Susu 
Physics URGENT!!!!!!!!!!!!
A bat watcher detects the sound of a hunting greater horseshoe bat at 76 kHz . She knows that this species produces echolocation calls at 80 kHz . What is the speed of
asked by enrique 
math
P = 6000(1+4)*(1.04)^5=?
asked by tota 
math
If it takes a runner 15 minutes to run a mile how many miles would he run in two and half hours?
asked by brittany 
Enviroinmental Science
Which type of agriculture is more sustainable? WhySubsistence vs. Industrial Agriculture?
asked by Anonymous 
Social Studies
Explain why you think Matthew Lyon is an important figure in American History and why he should be included in the Register. Would it be for him being the first person to be put on trial under the Sedition Act? He opposed going to war against France and
asked by Anonymous 
reading suffix
What does the suffix ant mean in the words servant, merchant, band assistant? A. State of B. One who C. Inclined to D. Lower than
asked by brianna 
Math
An invoice states that interest will be charged on overdue accounts at the rate of 1% per month. What will the interest charges be on a $3760 billing that is three months overdue?
asked by Anonymous 
physics
a hot air ballon rises from the ground with a uniform acceleration. after 10 seconds the ballon has attained a height of 25 metres. if the total mass of ballon and its bucket is 250 kg, find the magnitude of the force f
asked by ken 
Chemistry  Science (Dr. Bob222)
Posted by Ana on Saturday, May 3, 2014 at 11:23am. A zinccopper battery is constructed as follows (standard reduction potentials given below): Zn  Zn2+ (0.10 M)  Cu2+ (2.50 M)  Cu Zn2+ + 2 e → Zn(s) Eº = 0.76 V Cu2+ + 2 e → Cu(s) Eº = 0.34 V
asked by Ana 
physics
Level I: If a rider accidentally releases an object when the ride is at maximum height and top speed, how far away (horizontally) would that object land, assuming negligible air resistance? If viewed from above, what would the path of that object look
asked by Anonymous 
Chem 130
If 2.03 g of helium gas occupies a volume of 12.0 L at 22°C, what volume will 6.19 g of helium gas occupy under the same conditions?
asked by michelle 
AP Physics B
how much heat does it take to melt 4.2 kg of ice at 0c? Answer in kcal
asked by Hunter 
Math Essentials
The area of a rectangular portion of a national park is(48x^2 + 16x) square km. If the length is 8x km long, what is the width, in km?
asked by Ashante 
child care
A child who moved from throwing a ball using only an elbow movement to throwing a ball using her elbow, wrist, and shoulder is showing signs of _______ development.
asked by juohn 
VOCAB
one of the sure signs of a country that is not free is that the people in power will not (countenance, blurt) any criticism of their acts ans . countenance Though there has of late been a good deal of (countenance agitation) for tax reform, nothing much
asked by need help 
English (Writeacher)
How should I revise these sentences so that they are not as long but still are three sentences? "Driven by sea storms, Odysseus and his men wind up upon the land of the Lotus Eaters, and three of the men are sent to retrieve information about the
asked by Victoria 
Algebra
In 2005, Lee invested $2000 in a fund that pays 5% interest for the first 10 years, and 8% interest for every year thereafter. What will be the value of her investment in the year 2020?
asked by Christi 
computers  Programming
Create a program that uses two parallel onedimensional arrays. The program displays a shipping charge that is based on the number of items ordered by a customer. The shipping charge scale is shown in Figure 1 below. Store the maximum order amounts in a
asked by apiz007 
math
The2010 census shows that the population of New Jersey increased by 4.5%. If the 2010 population was 8,791,894, what was the population in 2000?'
asked by linda 
Help math only 1 question easy!
Simplify 3!
asked by ME 
Statistics
A student wants to test her hypothesis she gives each of her students an IO test. She finds that the average IQ score is 115 and the standard deviation for the class is 30. There are 22 students in the class. She also knows that the population average IQ
asked by Keisha 
Math
Montel loaned $6800 to a friend for 13 months at an annual rate of 7.7% simple interest. How much interest did the borrower owe?
asked by Anonymous 
geometry
Gary makes custom metal signs. He has a sheet of metal that is 6 feet by 12 feet and wants to cut it into signs that are 2 feet by 4 feet. How many signs can he make?
asked by epifanio 
algebra
assuming the distance between points (2,3) and (1,y) is 5 units, find y. how do you set this up?
asked by Tom 
physics
a particle of mass m moving with a speed v meters per second strikes a particle of mass 3m at rest and joins together. express the final kinetic energy as a fraction of initial energy
asked by ken 
math
A microwave oven costing RM500 was marked up 10% based on retail price. later it was marked down by 5%. WHAT is the final retail price? i get RM500/100X110=RM550 RMM550(10.05) =RM522.5 but in my book the answer is rm527.78 ?
asked by fizz 
Fianance
Jake is looking at refinancing his mortgages and paying off his credit cards at the same time. Currently, his debt situation is as follows: First mortgage: 6%, 30 years due 20xx (15 years left) $269,238 Second mortgage: 8%, interest only due in 15 years
asked by Stephanie 
Chemistry
Zn+HCl>ZnCl2+H2 If you measure the total volume of collected gas over water at 65*C to be 728 mL at a total pressure of 845 torr, how many milliliters of 2.6 HCl would be required to produce the correct amount of hydrogen?
asked by Brandie 
Chemistry
What is the solubility in hexane for in an ionic compound and what is a solubility in hexane for a covalent (molecular) compound
asked by Kiki Mich 
Economics
What are the cost and consequences of providing the subsidies and welfare?
asked by Prince 
maths
Nordin bought a pair of trousers and a shirt.He paid $27 for the pair of trousers.How mush did nordin pay for shirt?
asked by Thiyages 
maths
compplex numbers multiplying complex and not: 3*(6j8) also, 3+(6J8)
asked by jerome 
chemistry
What is the molarity (mol/dm3) of a solution prepared by dilution of 0.125 moles of sodium chloride (NaCl) to 2.50x102 mL with water?
asked by Josh 
chemistry
7.5 g of acetic acid (CH3COOH) are diluted to 150 mL with water. What is the molarity (mol/dm3) of the acetic acid?
asked by pippiserra 
Chem Check Please!!!
1) Which of the following statements is/are CORRECT? 1. Naturally occurring isotopes account for only a small fraction of known radioactive isotopes. 2. A few radioactive isotopes with long halflives, such as U235 and U238, are found in nature. 3. Trace
asked by Kimberly :( 
physics
An approaching train produces the RP1 signal (attention signal) at 600 Hz . The train moves with the speed of 120 km/h. What is the frequency and the wavelength of the sound
asked by enrique 
Chemistry
A mixture consists of 0.52g of X, 0.77g of Y,and 1.11 g o fZ. What is the mass % of Z in the mixture?
asked by mai 
English 2
1)In anthem what are the implications of his creation? (Chapter 5) 2) why does he wish to know what he looks like? (Chapter 5)
asked by Samiboo 
biology
Which candy required more base per gram of candy sweet tarts or smarties
asked by Anonymous 
ALGEBRA
Solve. 1/(3x6) – 5/(x2) = 12 • X=34/9 • X= 29/18 • X= 34/9 • X=29/18 How?
asked by Sandra 
English
How should I revise this sentence? "Driven by sea storms, Odysseus and his men wind up upon the land of the Lotus Eaters, and three of the men are sent to retrieve information about the inhabitants of the peculiar island."
asked by Victoria 
English (Writeacher)
Do you think I should revise the first sentence? Also, am I using the dash properly? "Driven by sea storms, Odysseus and his men wind up upon the land of the Lotus Eaters, and three of the men are sent to retrieve information about the inhabitants of the
asked by Victoria 
Math
How many chords are determined by seven points on a circle? How do you do it, not answer.
asked by dddd47906 
Math 221
Find the greatest common factor of these two expressions. I am stuck 20y^4x^2u^2 and 16y^3u^6.
asked by NinaC 
chemestry
what are the heats of fusion/vaporization & specific heats of nitroglycerin
asked by matt 
Math
Peter has a cylindrical block of wood od diameter 6 cm and height 18 cm. He glues the base to a board, but wants to paint the rest of the block. He wants to paint the bottom half of the wood black and the top half white. a) Calculate the surface area of
asked by Lucas 
Physics
Two pulleys are connected by a belt that causes one pulley to rotate (via friction) as it is driven by the first pulley. The belt turns around the pulleys without slipping on either one. rA is 10.0 cm and rB is 25.0 cm. If wheel A starts from rest and
asked by TLP 
social studies
My daughter is doing and AZ book on california history, and can't find anything for the letter X. Can you help please?
asked by Melissa Bacon 
Language Arts
In drafting a descriptive paragraph, how are the details organized if you use spatial order as the organizing principle? a)from most general to most specific b)by physical position or relationship to each other c)by the date each event occurred d)in order
asked by Gwen 
science
How many DALYs are lost by a person who has a life expectancy of 74, contracts HIV/AIDS at the age of 40 and lives until the age of 60? This person receives antiretroviral medication two years after she/he contracts HIV/AIDS until she/he dies. [The
asked by keitanako 
help.
What should you be if you like English, learning other countries cultures, and art, but not painting or anything like that.
asked by Anonymous 
physics
in every minute a pump draws 6 metric cubed of water from a well and issues it at a speed of 5 meters per second from the nozzle situated 4 meters above the level from which the water was drawn. find the average rate at which the pump is working. (1 metric
asked by ken 
physics
a body of mass 5kg falls vertically against a resistance of x Newtons.The body passes through two points A and B, 2.5 METERS APART with A above B, WHEN TRAVELING WITH SPEED 2 METERS PER SECOND AND 6 METERS PER SECOND RESPECTIVELY. BY ENERGY CONSIDERATION ,
asked by ken 
physics
when a force of 0.245 newtons is applied to a body of mass 250g which is resting on a horizontal plane, the body is found to be in a limiting equilibrium. find the coefficient of friction between body and planes.
asked by ken 
science
What can be done to prevent mine drainage from damaging the ecosystem
asked by Ella 
english
What should you be if you like English, learning other countries cultures, and art, but not painting or anything like that. I am thinking about becoming an interior designer or lawyer. Thoughts or ideas?
asked by Anonymous 
LOGS (ALGEBRA)
FIND THE INVERSE: f(x) = 10^(5x+3)  10 f^1(x) =
asked by Marty 
Chemistry
Which of the following are ionic or covalent? 1. lauric acid 2. magnesium sulfate 3. phenyl salicylate 4. ammonium chloride 5. sodium chloride
asked by Kiki Mich 
math
Peter has a cylindrical block of wood od diameter 6 cm and height 18 cm. He glues the base to a board, but wants to paint the rest of the block. He wants to paint the bottom half of the wood black and the top half white. a) Calculate the surface area of
asked by Lucas 
math
the circumference of a circle is 120 millimeters. Which of the following inqualities is true for d, the diameter of the circle measured in millimeters? A. 10
asked by mary 
Accounting; Emergency
NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 14. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually
asked by Mia 
chemistry
7.5 g of acetic acid (CH3COOH) are diluted to 150 mL with water. What is the molarity (mol/dm3) of the acetic acid?
asked by Josh 
Chemistry
A truck has 5.9L diesel engine in it. 5.9L of the overall displacement in 6 cylinders each 102mm bore (diameter) and 120mm stroke (length). Engine operates at 16.3:1 compression ratio and with 6psi (0.41atm) of boost cruising at 1600rpm. 1.) The air
asked by Robert 
Mathematics
A lot which is 3 feet times as long as it is wide is enclosed by a walk 10 feet wide. The area of the lot is 1200 square feet more than that of the walk. Find the dimensions of the lot. PLZ help and give a check if possible!
asked by Sadia 
Science
Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? A. sequence the same gene in both species to compare their similarity. B. dissect specimens of both species to
asked by Jasmine 
Accounting
NOTE: I NEED HELP WITH THESE 10 QUESTIONS,IT IS AN EMERGENCY PLEASE! Use the following information to answer questions 14. The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually
asked by Mia 
Physics URGENT!!!!!!!!!!!!
An approaching train produces the RP1 signal (attention signal) at 600 Hz . The train moves with the speed of 120 km. What is the frequency and the wavelength of the sound
asked by enrique 
Math
What part of an hour is 40 minutes?
asked by Rhett cowley 
algebra
Factor the expression. x2 + 2x + 24 HintX
asked by john 
ALGEBRA
Lost in the shuffle; sending again... Simplify into on fraction. (5x/x+3)(7/x+3) • (5x7)/(x+3) • (5x+7)/(x+3) • (5x7)/(x+3)^3 • (5x+7)/(x+3)^2
asked by Sandra 
add maths
Find the equation of the perpendicular bisector of the straight line joining the points A(1,0)and B(3,4).
asked by mandy 
Precalculus
Solve for x given the interval of [0,2pi). cos^2x=2+2sinx I got (3pi)/2 or 270 degrees.. By the way, does the notation [0,2pi) mean 0
asked by Anonymous 
English
Back from Extinction In 2004, two biologists were canoeing in a remote part of Arkansas. They were searching for a bird that local people said was there. As the men floated along, they listened for a bird call neither had ever heard before. Then a
asked by Laci ♥ 
Environmental Science
Subsistence vs. Industrial Agriculture Which type of agriculture is more sustainable? Why
asked by Anonymous 
how do you graph linear functions?? (math)
how??? such as: y = 1/3x  4 and y = 2x + 3
asked by TTR+S<3 
pre algebra
find the solution y = 2x  1 and y = x +3
asked by steve 
math
((a)/(a + 3))  ((4)/(a + 5))
asked by Anonymous 
english
The primary objective of the program is to develop the risk management capabilities of finance professionals.
asked by prabhu ram 
Underwater explosion
Can an underwater explosion be neutralized/countered (change direction or minimize shockwaves) by an equal or greater amount of force(compressed air)?
asked by Michael 
English (Writeacher)
Do you think I should revise anything? I have been given a limit of only three sentences to summarize the information below, but I don't want to seem wordy. "Ten years after the Trojan War, Odysseus departs from the goddess Calypso's island and arrives in
asked by Victoria 
algebra
solve each system of equations 1.4x0.5y=1.3 0.4x+1.1y=4.1
asked by Tom 
algebra
Let U=1,2,3,4,5,6,7,8,9,10 {xx is multiply of 2} U {x is multiply of 7}
asked by Mary 
Algebra
Simplify into on fraction. (5x/x+3)(7/x+3) • (5x7)/(x+3) • (5x+7)/(x+3) • (5x7)/(x+3)^3 • (5x+7)/(x+3)^2 How?
asked by Sandra 
AstroPhysics
Imagine you are in a spaceship one million km from a black hole of mass 2×1030 kg. Initially you are flying directly away from it at a velocity of 12.8 km/s. Using the nbody approximation, what is your velocity one second later? Type your answer in
asked by Anonymous 
Language Arts
Which sentence does not include an abbreviation? a)The movie starts at 12:45 p.m b)Dr. Ross asked the nurse to schedule my surgery immediately. c)One day I hope to visit Mt. Rushmore. d)Chris left work early to catch the train at three o'clock. Is the
asked by Gwen 
Math
Find the solution. y = 4x & y + x = 5
asked by steve 
Algebra, Logirithms
Find the inverse of the function: f(x) = e^(4x+2)  10
asked by Lance 
Physic
Please urgent help me A cryogenic storage container holds liquid helium, which boils at 4.20 K. Suppose a student painted the outer shell of the container black, turning it into a pseudoblackbody, and that the shell has an effective area of 0.487 m2 and
asked by suzan 
English (Writeacher)
How should revise these sentences so that they are still three sentences? "Ten years after the Trojan War, Odysseus departs from the goddess Calypso's island and arrives in Phoenicia, ruled by Alcinous. Offering Odysseus a ship to return him to his
asked by Victoria 
maths
Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18 .
asked by anonymous 
algebra
write the equation in logarithm form a) 343=7^3 b) 25(1/5)^2 c A=bc Thank you for your help. I have no idea how to do this problem and I am getting stress.
asked by Mary 
maths
Simplify; x^2 + ax + bx + ab divide x^2 + 2ax + a^2.
asked by Shane 
maths
Solve this equation; p^2  p  42
asked by Shane 
Chemistry
For ionic compound properties, what is the solubiity in hexane
asked by Kiki Mich 
chemistry
What is the molarity (mol/dm3) of a solution prepared by dilution of 0.125 moles of sodium chloride (NaCl) to 2.50x102 mL with water?
asked by pippiserra 
math
You randomly choose a natural number from 110. what is the probability that you choose a multiple of 2 or 3?
asked by Beth 
Physics
Hello, I need an example of something that travels 7 m/sec or 10 m/sec. Any ideas?
asked by Viola 
MATHS  FRACTION
3 1/3  1 3/4 = 3 4/12  1 9/12 IE. 4/12 < 9/12 2 + 1 + 1/3  1 3/4 = 2 + 12/12 + 4/12  1 9/12 = 1 7/12 Please somebody explain these steps.
asked by niya 
physics
An american system of communication is based on the radio frequency of 76 Hz. Compute the wavelength of theses waves and compare it to the diameter of the earth.
asked by enrique 
Math
6x=y+1 find the slope and y intercept
asked by Janet 
university physic
A cryogenic storage container holds liquid helium, which boils at 4.20 K. Suppose a student painted the outer shell of the container black, turning it into a pseudoblackbody, and that the shell has an effective area of 0.487 m2 and is at 3.01·102 K. a)
asked by suzan 
Chemistry
Describe electron delocalization.
asked by Hulikene 
math
what is 20=4x6x
asked by destiny 
FRaction
3 1/3  1 3/4 = 3 4/12  1 9/12 IE. 4/12 < 9/12 2 + 1 + 1/3  1 3/4 = 2 + 12/12 + 4/12  1 9/12 = 1 7/12 Please somebody explain these steps. Answer this Question
asked by niya 
Organic CHM II
With what starting material are all lipids are built? Describe the process that a long carbon chain is rearranged into a multicyclic molecule that is basis for steroids? Please explain in detail
asked by Slinahu 
ALGEBRA
In the meantime I got the last one but this one I can't figure... Divide. [(x^29)/(x5)]/(x+3) • (x3)/(x5) • (x5)/(x3) • [(x+3)/(x3)]/(x5) • (x+3)/(x5) How?
asked by Sandra 
chemistry
Some of the substance commonly used in stomach antiacid are MGO,MG(OH)2,AL(OH)3. Which of these substance will neutralize thr greatest amount of 0.10M HCl per gram?
asked by zb 
mathfactor
factor: 2x^2(x3)+12x(3x)18(x3)
asked by sunny 
English
Back from Extinction In 2004, two biologists were canoeing in a remote part of Arkansas. They were searching for a bird that local people said was there. As the men floated along, they listened for a bird call neither had ever heard before. Then a
asked by Laci ♥ 
Language Art
Where should you insert a colon in this sentence? Interview the following people Dave, Barb, Jose, and Mary Ann. a)After following b) After people c)After Jose d)nowhere Is the answer b?
asked by Gwen 
Algebra
Divide. [(X^2 +6+9)/(X1)]/(X^29)/(x^22x+1) • [(x+3)(x1)]/(x3) • [(x3)(x+1)]/(x+3) • [(x+3)(x+1)/(x3) • [(x3)(x1)]/x+3) How?
asked by Anonymous 
maths
Solve this equation; p^2  p  42
asked by Shane 
Organic CHM II
What are the most important monosaccarides in biological systems? glucose and fructose?? is that correct?
asked by rtyeu 
pre algebra
find the solution y = 4x and y + x = 5
asked by steve