Questions Asked on
August 22, 2014

waverley girls high school
Which career options do you have if you choose subjects such as geography, maths literacy, business studies and life science ?
asked by tshepang 
chemistry
calculate the amount of water in grams that must be added to 5.00 grams of urea (NH2)2 CO in the preparation of a 16.2 percent by mass, and 26.2 grams of MgCl2 in the preparation of a 1.5 percent by mass solution.
asked by vonedtera 
math
One basket of oranges has onethird again as many oranges as a second basket. If the first basket has 3 more oranges than the second basket,how many has the first basket?
asked by jeni 
Statistics
The scores for math test #3 were normally distributed. If 15 students had a mean score of 74.8% and a standard deviation of 7.57, how many students scored above an 85%?
asked by Lisa 
Physics
The figure below shows an electron passing between two charged metal plates that create an 115 N/C vertical electric field perpendicular to the electron’s original horizontal velocity. (These can be used to change the electron’s direction, such as in
asked by Joe 
law
You and your classmates are divided into four groups that govern your entire school. Each group has a different function but all groups are of equal importance. The time comes when your school needs a new law, and each group has as much to gain or lose as
asked by ............ 
Physics
1.) The earth's radius is about 3956.52 mi. An object that has a mass of 20 kg is taken to a height of 160 km above the earth's surface. a. What is the mass of the object at this height? b. How much does the object weigh at this height?
asked by YESHA 
math
If Britain and France had not adopted a policy of appeasement, would Adolf Hitler have been as successful as he was in overrunning Europe
asked by lisa 
CHECK PLEASE
I think its B only Which statements are true about the agricultural revolution? Choose all answers that are correct. A. It occurred at different times in different places over many years. !@#$%^&anged people's lives because they now had nearly complete
asked by Matt 
Physics
A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?
asked by YESHA 
geometry
solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.
asked by Anonymous 
statistics
The average weight of all newborn babies at Dearborn Hospital was estimated by using the average weight of babies born in the month of April. Based on this information, identify: a. A statistic b. A variable c. A data value
asked by MissPatte 
Science
How might creativity help a scientist? a)creativity allows a scientist's findings to be trusted. b)Creativity alllows a scientist to develop new ideas or evaluate old ideas in a new way. c)Creativity assures that the scientist has a sense of right and
asked by G 
Science
How might creativity help a scientist? A.Creativity allows a scientist's findings to be trusted. B.Creativity allows a scientist to develop new ideas or evaluate old ideas in a new way. C.Creativity assures that the scientist has a sense id right and
asked by G 
Am I right?
I have to state three causes and effects of the cold war. Causes: The Soviet union was trying to get surrounding countries to become communist The acquisition of atomic weapons by America caused fear in the Soviets. Both countries feared an attack from
asked by lisa 
Algebra
Given that xy = 3/2 and both x and y are nonnegative real numbers, find the minimum value of 10x + 3y/5
asked by Eric 
Physics
The speed of an arrow fired from a compound bow is about 57 m/s. An archer sits astride his horse and launches an arrow into the air, elevating the bow at an angle of 54 above the horizontal and 2.3 m above the ground. What is the arrow's range?
asked by Chris 
Social Studies
1. What function do the barrier islands play environmentally for the state of Georgia? A. They create deep sea ports. B. They protect the coastline. C. They carry toxic chemicals from the mainland. D. They reduce the likelihood of drought. 2. Which of the
asked by Amber 
Physics
1.)A force of 250 is just sufficient to start a 50 kg steel trunk moving across a wooden floor. Find the coefficient of static friction. 2.) compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction
asked by John 
gas law
A certain volume of co2 take 200 sec to diffuse through a porous plug how long eill it take the same volumeof hydrogen chloride gas to diffuse under same condition
asked by magdaline 
Physics
A body A of a mass 0.16 kg exerts a force of 6.2x10^10 N on a body B when the distance between their centers is 0.37 meters. What is the mass of body B?
asked by JOSH 
Physics
A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?
asked by JOSH 
chemistry
hydrogen gas has a Henry's law constant of 1.07e6 M/mm Hg at 25 Celsius when dissolving in water. if the total pressure of gas (H2 gas plus water vapor) over water is 1.0atm, what is the concentration of H2 in the water in grams per milliliter?
asked by angel 
Physics
A 25 kg box is along a horizontal floor and a force of 400 N pushes the box with an angle of 50 deg with the horizontal. Starting from rest, the box achieves a velocity of 2 m/s in a time of 4 seconds. Find the coefficient of sliding friction between box
asked by JOSH 
math confused
it took marty 42 min to write a book report. then he spent 18 min correcting this report. explain how can you use mental math to find how long marty spent on his report?
asked by Kelly 
American Constitutional Law
Most agreements with foreign nations are in the form of: A. executive agreements. B. treaties. C. statutory arrangements. D. ex parte proceedings. This one is really confusing. I am torn between A & B. My textbook says both and looking on line says both as
asked by Pat 
science
an electron in a onedimensional box undergoes a transition from the n=3 level to the n=6 level by absorbing a photon of wave length 500 nm. what is the width of the box?
asked by Husnul 
physics
A motorist A leaves a small town and drives East at 28 ms1 . A second motorist B is driving South towards the same town at 23 ms1 . Draw a diagram and find the velocity of motorist B relative to motorist A? ( VB REL A ) is this just phythagoras and
asked by jp 
chemistry
Ions in aqueous solution that are surrounded by polar water molecules are said to be saturated. is it true or false?
asked by angel 
science
the hydrogen ion concentration in a mixture of 10ml 0.1 M H2SO4 AND 10ml 0.1M KOH solution in water is?
asked by madhu 
Stats
Sally rolls a fair number cube 8 times and gets a 5 twice. What is the experimental probability that on her next roll, she will roll a 5? I know that experimental probability is f/n, so the number of trials is now 9, but is the number of times Sally roll a
asked by Liv 
English
1. She held out her hand. 2. She extended her hand.  Are both the same? Can we use some other expressions instead of 'held out'? 3. It's been such a long time. 4. It's been so lone a time.  What does 'It' refer to here?
asked by rfvv 
Physics
A body A of a mass 0.16 kg exerts a force of 6.2x10^10 N on a body B when the distance between their centers is 0.37 meters. What is the mass of body B?
asked by YESHA 
Physics
The wavelength of a stationary wave is 36.0cm. What is the distance between a node and the next anti node
asked by Richard 
Chemistry
Full question: An alcohol of molecular formula C4H10O2 contains two OH groups and has an unbranched carbon atom chain. On reaction with excess hot potassium permanganate this alcohol is converted into a compound of molecular C4H6O4 To which carbon atoms in
asked by Ariana 
Science
What type of scientific thinking did alfred wegener employ to develop his theory? A.Inductive reasoning B.Deductive reasoning C.Skeptical reasoning D.Subjective reasoning Is the answer A?
asked by G 
math mental math
shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?
asked by Summer 
algebra
Find the present value, using the present value formula and a calculator. (Round your answer to the nearest cent.) Achieve $225,500 at 8.55% compounded continuously for 8 years, 125 days.
asked by HOLLY 
Chemistry
Why neon gas is used in botanical gardens and green houses? Why KrF6 doesn't exist? Why helium can diffuse through rubber,PVC and even glasses? Show twocentertwo electron bonds and threecenterfour electron bonds in B2H6?
asked by Edd 
Chemistry
The most abundant noble gas in atmosphere among He, Kr, Ar, Xe?
asked by Edd 
math
15. What is the mathematical average of the number of weeks in a year, seasons in a year, and the number of days in January? This is what I know so far: I know there is 52 weeks in one year.
asked by vincent 
physics
A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction
asked by Anonymous 
algebra
Average movie ticket prices in the united states are, in general, lower than other countries. It would cost in $80.22 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $75.53.
asked by need help 
English
1. It is colorless. 2. Much care is needed for the plants. 3. Watch them grow. 4. Come visit our greenhouse. Are all these sentences complete sentences?
asked by Hayden 
college algebra
store mixes a Brazilian coffee worth worth $10 per kilogram and a turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find out how much of each should be used to make a 420kilogram mixture. my calculations all came out
asked by college 
Algebra
Find the algebraic expression. Quotient of 8 and the difference of x and m My answer is 8/xm
asked by Faye 
AS Chemistry
which ions are present in a solution of ethanol in an excess of concentrated sulphuric acid? 1 CH3CH2O 2 CH3CH2OH2 3 HSO4 Explain please! Thanks :)
asked by Ariana 
math
3. If Leah is 6 years older than Sue and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue? This what I have so far: L=s+6 J=L+5
asked by vincent 
MATH HELP
shelley spent 17 min washing the dishes. she spent 38 min cleaning her room. explain how you can use mental math to find how long shelley spent on the two tasks?
asked by Olivia 
physics
A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction
asked by Anonymous 
I have a pretty hard one
45% of 75% of a number is 70, what is the number? Express your answer as a common fraction.
asked by Math 
math
41. It takes Craig 20 minutes to type n pages. At these rates, how many hours will it take him to type 100 pages? All i know is 20/n
asked by vincent 
algebra
What is the maximum value of c such that the graph of the parabola y = (1/3)x^2 has at most one point of intersection with the line y = x+c?
asked by Jack 
ENGLISH
In what year was this article published? In what year was the film Minority Report set? What gaming console does the article mention? Why does the article mention this gaming console? What is the “Star Trek effect,” and how does it relate to what you
asked by LISA 
math
solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.
asked by sanjaivnair 
Physical science
What did svante arrhenius discover about the reaction between an Acid and a Base?
asked by Siphelele 
finance
what is the payoff amount of a 30 year $255,413 mortgage at 6% interest with a payment of $1,321.33 with 8 years remaining?
asked by Leia 
College ALGEBRA
. Manny plans to save of his salary each week. If his weekly salary is $ 444, find the amount he will save each week.
asked by MARIE JONES 
Pre Med Major
Hi. I am an accounting major. Is there anyway I can finish my accounting degree and still finish the pre med requirements in 4 years? Can an Accounting major become a MD? I know about MCAT and everything.
asked by Mohammed 
math
35. If b is positive integers less than 400 and more than 100, then how many integer pairs (a,b) satisfy the equation a/b=2/9?
asked by vincent 
Math percentage (Money problem tax, discount)
After 15% off, the book price becomes $26, what was the original price of the book? Round to the nearest cent. I had $29.9 but it was wrong :(
asked by Math 
CalculusMath
Derivative of x^7/7x^345x+25
asked by Lorine 
Chemistry
Attachment of [XeF]+ ions with [AsF6] ions in their compound
asked by Edd 
Physics
Whats the difference between frictionless and friction in a way of solving? Like in formula, and what formula should use
asked by Kae 
Algebra
What is the sum or difference? 53x/5 My answer is 1  3x/5
asked by Faye 
calc
d/dx of taninverse e^3x i know tan inverse is 1/1+x^2 but im not sure what to do with e^3x?
asked by jasmine 
Science
An air balloon is at rest in the air and a stone is dropped from it. It passes a 81m tower in quarter of a second and comes on the ground. Find the final velocity and the height of the air balloon.
asked by Sahil Khan 
math
I need help with just two questions. Can you help me with them please? Thank you so much! 1. School Materials, Inc., packs 1centimeter cubes in boxes that are 10 centimeters long, 12centimeters wide, and 8 centimeters high. A carton holds 2 dozen boxes
asked by Chearles 
Math
Write the numbers 1 to 9 in the circles so that each side of the square adds up to 12. (Hint:put 7 in the middle) Example: this is the grid u have to put the numbers in OOO  .  OOO . .  OOO
asked by Lalalala 
physics
Find the ratio of the electrostatic to gravitational force between two electrons. 4.16×1042 What is this ratio for two protons? (Why is the ratio different for electrons and protons?)
asked by Joe 
math
48.Kate's class has between 40 and 51 students. Exactly of 75%of the students in her class have black book bags, and exactly 1/6 of students in her class do not have a book bag at all. How many students are in Kate's class?
asked by vincent 
math
20.Which of the following numbers could be described in the following way: an integer that is natural, rational and whole number? I think the answer is B A.0 B.1 C.2.33 D.3 E.none of the above
asked by vincent 
math
find d/dx of the integral from 1 to 2x of the (sqrt t^2+1)dt at x=sqrt2 the answer is 6. but i am not sure how to find d/dx. i tried taking the integral then doing that from 1 to 2x and then taking d/dx then plugging in sqrt2 for x but it was wrong
asked by hannah 
dddd47906
In the fable The Goose That Laid the Golden Eggs, I know it teaches us that greed can lose us all we have, though it also teaches us that a. All that glitters may not necessarily be gold. b. It is foolish to harm something or someone that benefits you. c.
asked by Fables 
math
calculate the upper limit for the definite integral from 2 to 2. oh x^2+1 dx with the partition P=2,1,0,1,2
asked by sara 
math
24% of a number is 45, what is the number? Express your answer as a decimal.
asked by MATH 
math
7. What area remains when the area of a square with side 3 is subtracted from the area of circle with radius 2?
asked by vincent 
math
Mason brought 18 red pencils to school. He brought 4 times as many erasers with him. How many erasers did Mason bring to school? Let M = how many erasers 18x4=M M=42
asked by kennedi 
question
two friends bob and ralph, ate at a restarunt together. bob paid for himself and ralph paid for himself. Bob spend 3 dollars more than ralph. the total bill was 52.24 dollars how much did bob pay?
asked by anonymous 
mathematics
A piece of rope is 250 cm long.How much times will it wrap around a circle with a radius of 25 cm?
asked by curlian 
science
what is 50g divided by 8cm3
asked by kesha 
physics
Please help me answer the question because I am really confused about this problem. 1. an electron in a onedimensional box undergoes a transition from the n=3 level to the n=6 level by absorbing a photon of wave length 500 nm. what is the width of the
asked by Husnul 
English
1. He is taking me to prison. 2. He is taking me to a prison. 3. He is taking me to the prison.  Are they all grammatical? What is the difference among them in meaning? 4. I'm on duty now, as you know. 5. I'm on duty now, you know. 6. I'm on
asked by rfvv 
English
He seemed embarrassed at first, but he overcame it quickly and held her fingers with his left hand.  In this sentence what does 'it' refer to?
asked by rfvv 
Math
What is the value of w? 5( 9  3) = w x 9  5 x 3 I think the answer is 6 because 93 equals 6. *it's not multiple choice*
asked by Nay 
Algebra
Solve for x. (x1)/(x3)=sqrt of 17x
asked by Anonymous 
Math
I need to find expressions that will show how 5 x 37 can be rewritten using distributive property. 5 x 30 + 7  My answer 5 x 30 + 5 x 7 5 x 40  5 x 7 5 x 40  5 x 3 *It can be more than one answer* 3u + 7v + 4u = 2v (I have to simplify) My answer is
asked by Nay 
Algerbra 2
Arithmetic sequence 4,7,10,13 How do you do it.
asked by Brianna 
health care
Business Organization refers to how a business is? Select one: a. profitable b. structured c. renamed d. considered large enough to purchase a building
asked by Tina 
Spanish
what does "evoca a una època passada." mean?
asked by Katt 
math
which of the following is true about the function g(x)= 4x^2  3x^4? a)g is decreasing for x
asked by hannah 
maths
how to prove theorem 4 and 5
asked by ram.kgo 
Related rates math in calculus
A square sheet of cardboard has sides 18cm. Four equal portions are cut away from the corner and discard. The sides are then twiced up to form a restangular box. What are the dimension of the box formed that will have max volume?
asked by PHILLIP