Questions Asked on
May 10, 2014

maths
If alpha and beta are the zeros of the polynomial p(x)=x^2+x+1 then find the value of 1÷alpha+1÷beta 2)alpha^2+beta^2
asked by rinu 
H.E.L.P
1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine
asked by Anonymous 
Physics
A cyclist starts from rest and coasts down a 6.5∘{\rm ^\circ} hill. The mass of the cyclist plus bicycle is 95kg{\rm kg} . The cyclist has traveled 270m{\rm m} .What was the net work done by gravity on the cyclist? How fast is the cyclist going? Ignore
asked by Anonymous 
Chemistry
How would you write these chemical reactions?Can someone do one or two reactions for each problem, so I could get an idea of to them? ..I'm nit sure how most of the oeoducts wouls turn out..especially if it is a precipitate. 5. When Mn^2+ ions are
asked by Jamie 
math
____ income is subject to federal taxes. Gross Adjusted gross Net Taxable
asked by tota 
(113) Chemistry  Science
Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas
asked by Ana 
calculus
find the volume of solid inside the paraboloid z=9x^2y^2, outside the cylinder x^2+y^2=4 and above the xyplane 1) solve using double integration of rectangular coordinate. 2) solve using double integration of polar coordinate 3)solve using triple
asked by AIRA 
Physic
If a scuba diver fills his lungs to full capacity of 5.5LL when 8.2mm below the surface, to what volume would his lungs expand if he quickly rose to the surface? Assume he dives in the sea, thus the water is salt.
asked by Anonymous 
Science3 question
1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized
asked by Princess Anna 
Ethics in Criminal Justice
The correlativity of rights and duties mean that: A. moral duties override moral rights. B. moral rights override moral duties. C. the existence of moral rights implies duties by which other must abide. D. None of the above. I think the answer is A but not
asked by Erica 
math 7Probability help
two numbers rolled can be added to get a sum. Find P(sum is even) is it 1/4 ? or 1/2? I think it is 1/4
asked by moby 
math
R and T are points on straight line PQ on which PR = RT =TQ. what percent of PT is PQ ?
asked by peter 
MATH
A paper bag contains a mixture of three types of treats: 12 granola bars, 10 fruit bars, and 8 cheese strips. Suppose that you play a game in which a treat is randomly taken from the bag and replaced, and then a second treat is drawn from the bag. You are
asked by Leah 
(116)Chemistry  Science
Consider the reaction: SO2 (g) + NO2 (g) ==> SO3 (g) + NO (g) At T = 1000 K, where the reaction is exothermic with an equilibrium constant K = 9.00 The reaction vessel is charged initially with all four gases, each at a pressure of 0.5 atm. After
asked by Ana 
Criminal law ethics
The Categorical Imperative variation, "Act so as to treat humanity, whether in your own person or that of any other, as an end and never as a means only" entails a key component of Kant's moral philosophy that all human being have: A. intrinsic worth or
asked by Ethel 
Science
1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine
asked by Anonymous 
math
Divide: 12x^2y  6xy + 4x^2 ____________________ 2xy Thank you!!
asked by Skye 
physics answers check
1. For a bar magnet, the magnetic field lines point a. towards the South pole. b. towards the North pole. c. always towards the magnet. d. always away from the magnet. my answer: a 2. Magnetic field lines a. are straight lines. b. are always circles. c.
asked by Liz 
math
2. Over 75% of the revenue received by the federal government is from ____ and ____ taxes. a. sales and income b. income and excise c. Social Security and estate d. estate and sales e. income and Social Security
asked by tota 
maths
Given the quadratic equation y = x^2 + 2x + 3. a) Will the graph turn upwards or downwards? b) What are the coordinates of x and y intercepts? c) What is the coordinate of the turning point? d) Use your answer in parts (a,b,c and d) to sketch the graph.
asked by Shane 
Sciene
Is Meiosis actually Mitosis happening twice? My answer Yes because they are both a cell division process.
asked by Kimberly 
chemistry
This functional group can be generated by oxidation of an aldehyde. Oxidation is just the reaction with oxygen, but unlike combustion you are not producing carbon dioxide and water.
asked by bekah 
Plz, check my answers.
1. Which of the following is not a function of the circulatory system? breaks down large molecules delivers oxygen to body cells **** takes carbon dioxide away from body cells fights infection 2. Which of the following explains why the heart is organized
asked by Princess Anna 
English
Which of the following sentences is grammatically correct? a.Only Bill wanted to go to the lake. [Intended meaning: Bill wanted to go to the lake, but no one else did.] b.Bill only hinted that he would help us move. [Intended meaning: Bill hinted but did
asked by Megan 
physics answers check
5. A magnetic field map shows a. the direction of the magnetic field. b. a few representational field lines. c. relative strength of the magnetic field. d. All of these choices are correct. my answer: d 6. Magnetic field lines a. can cross each other when
asked by Liz 
math
Over 75% of the revenue received by the federal government is from ____ and ____ taxes.
asked by tota 
science
A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction? (1 point) A.The
asked by Check my answer 
math
On which of the following types of income would you normally have income tax withheld?
asked by tota 
english
Which is the best place to find more info about the development of photography in the mid 1800/s. photography manual  history textbook .encyclopedia
asked by Anonymous 
(117)Chemistry  Science
Consider the reaction: SO2 (g) + NO2 (g) SO3 (g) + NO (g) At T = 1000 K, where the reaction is exothermic with an equilibrium constant K = 9.00 If the reaction vessel is instead charged initially with SO3(g) and NO(g), each at a partial pressure of
asked by Ana 
MAth
4. What is the slope of the line that goes through (6, 5) and (3, 1)? (1 point) – – 5. The slope of the line that goes through (−3, −5) and (−3, −6) is ______. (1 point)
asked by Babatunde 
Algebra 2
Select the first five terms in the arithmetic sequence an=8n, starting with n=1
asked by Betrice Baker 
Organic Chemistry
A student obtains a yield of 79% from his salicylic acid. How many grams of salicylic acid will the student need to produce 135 g of aspirin?
asked by patricia 
math
at the beginning of the year,Daniel was 62 inches tall. Now he is 66 inches tall. Find the percent of change
asked by susan 
Math 222
How do you subtract and write 1/23/4 in simplest form. I am stuck can anyone help me. this is what i cam up with. 1 3 2   =  2 4 2 I am not sure if this is correct.
asked by NinaC 
Engineering skill
anybody here to give me notes to solve this question (A and B are two points on a pipe of diameter 600 mm. the grid reference for the two points are given in the below , together with the elevation of the top of the pipe at these points. A drain pipe is
asked by Bedar 
Math 6
n ice cream stand sells chocolate, vanilla, and strawberry ice cream as well as a choice of 22 toppings. How many choices are there for a single flavor of ice cream with one topping? How do I do this? is it 46 choices? Am I right?
asked by Sophia 
English help
1. Thyme: herb:: A. Fearless: brave B. sedan: auto C. Speech: mouth D. Auto: garage Is it b? 2. Bat: raccoon:: A. Bird: robin B. insect: snake C. Owl: possum D. Porpoise: whale Is it c? 3. Penny: coin A. Dollar: pound B. whisper: speak C. Epic: poem D.
asked by Anonymous 
English help
From the words below supply the words needed to complete the sentences. Prolific, incontrovertible, tentative A. He said that he had made a TENTATIVE offer on a pair of rabbits; he planned to call back and confirm if his wife did not object. His wife,
asked by Anonymous 
English help
From the words below supply the words needed to complete the sentences. Compatible, virtuoso, vilify, vulnerable, incipient, colloquial A. The VIRTUOSO who had spent ten years refining his skills as a violinist would sarcastically VILIFY those who made
asked by Anonymous 
English help
From the words below supply the words needed to complete the sentences. Querulous, commiserate, tedious, pugnacious, thwart, incorrigible A. Trying to keep the INCORRIGIBLE prisoners from escaping was Jack's responsibility. Although he sometimes enjoyed
asked by Anonymous 
Math7 Am I right?
Below are the results of tossing a number cube 8 times. Find the experimental probability of tossing an even number. 3,4,1,2,5,1,6,5 3/8 right?
asked by moby 
ALGEBRA
2nd posting  my mistake When will the dependent variable in the equation y= sqrt [x+43] equal or exceed 4 • x ≥ –0.17 • x ≥ 45 ** is it this one? • x ≥ 48 • x ≥ 53
asked by Sandra 
chemistry
This type of functional group is often sweet smelling and may be used as a fragrance. When it reacts with water it will produce a carboxylic acid and an alcohol. I chose ester but it is wrong
asked by bekah 
Social studies...
How did the Fugitive Slave Act and the KansasNebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era? Could
asked by Anonymous 
Ethics/Criminal Justice
These two questions are similar in type and I am really confused by the textbook. 1) Which of the following objections to criminal punishment might be raised by a Kantian ethical framework? A. Incapacitation amounts to using offenders to benefit the
asked by Pat 
chemistry
One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury(II) oxide is reduced to mercury. HgO(s) + H2O( ) + 2 e– Hg( ) + 2 OH–(aq) If 2.3 10–5 amperes flows continuously for 1200 days, what mass of Hg( )
asked by sarah 
algebra
2+√16
asked by steve 
ALGEBRA
A right triangle’s hypotenuse is 20 cm long. What is the length of the side opposite a 60° angle? Give your answer to the nearest tenth of a centimeter. • 40 • 18.5 • 20 • 17.3 Please show how.
asked by Sandra 
Algebra
The 22 students present for a recent test in Ms. Huang’s class had an average score of 88. When students who were absent took the test, three scored 4 points higher than the average and two scored one point higher than the average. What is the new class
asked by Anonymous 
Chemistry
Please explain how to set this problem: A solution has a density of 1.73 g/ml. If it's weighs 4.3 ounces, what is the volume. ?
asked by Wanda 
math need help urgent
Mr. Michaluk has a $50,000 personal (revolving) line of credit with the Canadian Imperial Bank of Commerce (CIBC). The loan is on a demand basis at a floating rate of prime plus 1.5%. On the fifteenth of each month, a payment equal to the greater of $100
asked by Anonymous 
Chemistry  Science (Dr. Bob222)
Liquid chloroform (CHCl3) is placed in a closed container and allowed to equilibrate with chloroform vapor. With the temperature held constant, additional chloroform is introduced into the system, and the vaporliquid equilibrium is reestablished.
asked by Ana 
Calculus
Given f'(x)=9/2x(3x^2+2)^1/2 (this is the derivative of y= sqrt[(3x^2+2)^3]) , state any values of x for which the function is not differentiable
asked by Kim 
Algebra 1B
f(x) = 7x^2 + 3x + 5.What is the appropriate values when solving? I just do not understand help please
asked by Kim 
Chemistry
During an acidbase titration, 25 mL of NaOH 0.2 M were required to neutralize 20 mL of HCl. Calculate the pH of the solution for each: a) Before titration b) After adding 24.9 mL of NaOH c) At equivalence pt d) After adding 25. 1 mL of NaOH e) The pH of
asked by al 
Math
Simplify so it is one fraction. (8x/(x8))  (4/(x8)) (8x  4)/(x  8)?
asked by Anonymous 
algebra
a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude 5.3x10^2 um. Find this earthquake's magnitude. Round this answer to one decimal place.
asked by Mary Ann 
Algebra
An artifact was found and tested for its carbon14 content. If 75% of the original carbon14 was still present what is its probable age to the nearest 100 years?. carbon 14 has a halflife of 5,730 years.
asked by Mary Ann 
chemistry
Match the name or structure with its functional group. Each molecule has only one functional group. My choices are alkane, alcohol, alkyne, carboxylic acid, alkene, aldehyde, ketone, ester, and ether. 1. 2propanol alcohol 2. 2methoxypentane alkane 3.
asked by bekah 
pre algebra
What is the slope for the following data? X 1 0 1 2 Y 0 1 2 3 y2  y1  x2  x1 rise / run
asked by steve 
Algebra
The temperature of a mass of gas (T) varies inversely with volume (V). For a volume of 500 cm^3, the temp is 2.5 degrees Celcius. For a volume of 100 cm^3, what would the temperature be? 12.5 degrees?
asked by Anonymous 
Math Literacy, Business Studies, Economics& Tourism
Im in grd12 and would like to know which available courses are there for these subjects and which career can I get into. #Urgent
asked by L'thabo 
ALGEBRA
Solve for b. [sqrt] b^4/25=4 I do not know how to type two of the possible answers.
asked by Sandra 
Science help please
1. Name the components of the respiratory system in the order incoming air would encounter them during breathing. trachea, pharynx, larynx, alveoli, bronchi bronchi, larynx, alveoli, trachea, pharynx larynx, trachea, bronchi, pharynx, alveoli pharynx,
asked by Anonymous 
math
If you needed to make a key business decision, explain what information you would want to review and why.
asked by tota 
English Help Please!!!
In a Forbes magazine article from October 2013 Susan Adams wrote of a survey done by the National Association of Colleges and Employers from Bethlehem, Pa. From early August to midSeptember that year they asked 200 hiring managers what skills they
asked by Chris 
algebra
Given the function f(x)=7(1/8)x ,find a formula for the inverse function. show work.
asked by Davone 
math
If 20 teachers in a faculty of 80 are transferred,what percent of the original faculty remains?
asked by peter 
Science 2
One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now , how old will you be when light that is leaving. Arcturus today reaches Earth ? How far, in kilometers, will it have
asked by Jenny 2 
English
1. The house itself was ugly. 2. I saw Mr. Smith himself. 3. I don't like the house itself.  Are they all grammatical?
asked by rfvv 
Math
Expand (1+y+ky^2)^8 until y^3
asked by Cam 
MATH
A conveyor belt sushi restaurant lets you choose what you want to eat from variouslycoloured plates that go by. You pay based on the colours of the plates. After dinner, 1 green plate, 4 yellow plates, and 2 blue plates. Use the Fundamental Counting
asked by Leah 
physical
A 2500‐kg vehicle traveling at 25 m/s can be stopped by gently applying the breaks for 20 seconds. What is the average force supplied by the breaks to stop the vehicle?
asked by mohammed 
calculus
find the volume of solid inside the paraboloid z=9x^2y^2, outside the cylinder x^2+y^2=4 and above the xyplane
asked by AIRA 
Math
Solve for the inequality: 1/3^x (1/3^x  2) < 15 I know the answer is x >  (log 5/log 3), can someone explain me how?
asked by Jam 
english
What should you do to the following sentence to avoid using a double negative? Even with glasses on, she didn't never see well. A. Leave the sentence as is. B. Even with glasses on, sue didn't ever see well. C. Even with glasses on, she never saw nothing
asked by Anonymous 
english
What is the correct way to write mens' in this sentence? After their group got caught in the rain, the mens' clothes were all soaked. A. Leave the sentence as si. B. Men's C. Mens's D. Men'
asked by Anonymous 
english
Please help: Which sentence uses apostrophes correctly? A. Martha's new bike was stuck and couldn't nove. B. Tracy's only brothers' birthday si the day before hers. C. Walter's childrens' grades have been improving lately.
asked by Anonymous 
(111) Chemistry  Science (Dr. Bob222)
Liquid chloroform (CHCl3) is placed in a closed container and allowed to equilibrate with chloroform vapor. With the temperature held constant, additional chloroform is introduced into the system, and the vaporliquid equilibrium is reestablished.
asked by Ana 
112. Chemistry  Science
At STP, 3.0 L of D2 reacts completely with 3.0 L of E, producing 1.5 L of a product. What is the formula of the product?
asked by Ana 
(115) Chemistry  Science
Assume a gas of molecular mass M g/molecule obeys the Maxwell Boltzmann distribution of speeds at temperature T. If u2> u1, the ratio of the number of molecules at speed u2 to the number at speed u1 a) is always less than one. b) is always greater than
asked by Ana 
math
If a and b are both positive numbers,and a>b,which of the following could be true? I. ab is greater than either a or b. II. ab is greater than b but less than a. III. ab is less than either a or b. (A) I only (B) II only (C) III only (D) I and II only (E)
asked by Johnny 
(122)Chemistry  Science
Consider the following reaction: C(s) + H2O (g) ⇌ CO (g) + H2 (g) (Kp = 0.45 at 900 K) What is the equilibrium partial pressure of H2O when the initial partial pressure of water is 1.00 atm? a) 0.43 atm b) 0.58 atm c) 0.22 atm d) 0.52 atm e) 1.16 atm
asked by Ana 
math
The average of P numbers is x and the average of N numbers is y. What is the average of all the (P+N)numbers? a. x+y/2 b. x+y c. Py+Nx/xy(P+N) d. x+y/P+N e. Px+Ny/P+N
asked by Johnny 
Finance
Determine the present values if $5,000 is received in the future (at the end of each indicated time period) in each of the following situations: a. 5% for 10yrs b. 7% for 7yrs c. 9% for 4yrs
asked by Jennifer 
physics
If I am standing on top of a building that is 350 ft. high and I throw a baseball off the roof at angle of 60 degrees, determine how long the ball is in the air as well as how far it lands from the building.
asked by Sophia 
Science/Math
A water jet approximately 10ft in length & 67 inches in diameter traveling @ mach3.54.5 hitting an object traveling @ mach 5, 1015ft in length with a weight of 2500 lbs can its course of travel be altered, and/or can said object be destroyed completely?
asked by mike19708