Questions Asked on
May 25, 2015

Math
A model rocket is launched from a roof into a large field. The path the rocket can be modeled by the equation y=0.04x^2+8.3x+4.3 where x is the horizontal distance in meters, from the starting point on the roof and y is the height in meters, of the rocket
asked by Steve 
Algebra 1
Since opening night, attendance at Play A has increased steadily, while Play B first rose then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s) was the
asked by Steve 
English
I am stuck on these two questions(can you check #1 one over for me?)! For the poem Annabel Lee; 1. What romanticized explanation does the speaker give for the death of his love, Annabel Lee? He tells us that angels from heaven were jealous of their love
asked by Wendy 
Algebra
How can you write the expression with a rationalized denominator? ^3 sqrt 3 / ^3 sqrt 4
asked by St 
Algebra
A salesperson receives a 3% commission on sales. The salesperson receives $180 in commission. What is the amount of sales? The percent equation is: a/w = p/100 3% substitutes for p, but I'm not sure what 180 would substitute for, a or w?
asked by Emma Lee 
algebra
assume x > 0. what percent of 8x is 5x? i know that the equation is 5x/8x = p/100 and i have to multiply both sides by 100, but i'm not sure how to multiply 100 * 5x / 8x? what is 65% of 80x? again, i know that the equation is a/80x = 65/100 and i have to
asked by kamryn 
Chemistry
How many milliliters of a 5.0 M H2SO4 stock solution would you need to prepare 111.0 mL of 0.36 M H2SO4?
asked by Dave 
l.o
do you agree with the statement below ? coverage of sport ,sport personalities and recreational activities vary in media .the media tend to focus on the male dominated sport and sports personalities as well as certain sports codes and neglect others ,
asked by sindy 
Life orientation
Evaluate the extent to which the service delivery protest you have described in 2 above met or did not meet with the processes that you have researched in 3 above.
asked by Rammone nape 
chemistry
why does water,oil,acetone and isopropanol have the same concave meniscus shape?
asked by nicole 
Precalculus
A 60foot tree casts a shadow 85 feet long. The sine of the angle of elevation of the top of the tree to the sun is approximately ___. A. .82 B. .75 C. .58 D. .33
asked by Denise 
algbra 1
A farm has only sheep and geese. It has a total of 58 animals and a total of 150 legs on the animals. How many sheep and geese are on the farm?
asked by DEmi 
Physics
A person struggles to read by holding a book at arms length, a distance of 50.0 cm. What power of reading glasses should be prescribed for him, assuming they will be placed 2.0 cm from the eye and he wanted to read at normal near point of 25.0 cm?
asked by Anonymous 
Math
Mrs. Murphy separates her class into groups of 4 students each, 1 student is left over. If she separates her class into groups of 5 students each, 2 students are left over. What is the least number of students the class could have?
asked by Anonymous 
criminal Justice
The ACLU has publicly: A. supported the USA PATRIOT Act. B. filed suit to stop the USA PATRIOT Act. C. is neutral about the USA PATRIOT Act. D. has altered the USA PATRIOT Act. is it A 2. Terrorism is frequently committed: A. impulsively. B. with extensive
asked by Amy 
algebra
14.2 is 35.5% of what number? 3/5 is 60% of what number? what number is 25% of 7/8?
asked by kamryn 
physics
A body A of mass 2.0kg makes an elastic collision with another body B at rest. After collision,A continues to move in the original direction but with onefourth of its original speed. Determine the value of mass B
asked by Angelika Nnaji 
Chemistry
Using the balanced equation below, how many grams of cesium fluoride would be required to make 73.1 g of cesium xenon heptafluoride? CsF+XeF6 > CsXeF7
asked by Kylar 
Trigonometry
Use De Moivre's Theorem to write the complex number in trigonometric form (cos(2pi)/7)+ i sin((2pi)/7))^5
asked by O 
Chemistry
Methane gas burns in air to give carbon dioxide and water. a) give a chemical equation b) How can the mixture of these gases be separated b) Which gases does it mean?? Can anyone tell me.. Pleease.
asked by Saurav 
Algebra
A baker bakes a batch of muffins and splits the batch evenly onto six different trays. She then adds five croissants to each tray. If each tray now contains at least twenty baked goods, what is the least possible number of muffins in the baker's original
asked by Sophia 
Math
Identify the sampling,method. You want to determine the number of text messages students at your school send in a month. You go to the cafeteria and ask every 4th student that walks in. a random b systemic c stratified dm none of these My answer is
asked by Steve 
Math
Plz Help!!! List three different ways to write 5 (with an exponents of 11) as the product of two powers. explain why all three of you expressions are equal to 5 with an exponent of 11… so far i just know that when your dealing with multiplying a power
asked by Andrew 
Algebra
Write 806,000,000 in scientific notation
asked by Mae 
Math
A catapult launches a boulder with an upward velocity of 92 m/s. The height of the boulder, h, in meters after 1 seconds is given in the function h= 5t^2+92t+16. How many seconds does it take to reach maximum height? What is the boulders maximum height?
asked by Steve 
physics
At what height above the ground must a body of mass 10kg be situated in order to have potential energy in value to the kinetic energy possessed by another body of mass 10kg moving with a velocity of 10ms
asked by sarah 
Chemistry
Determine the pH of a buffer made from 250 ml of 0.50M HF and 150 ml of 0.75 M NaF.
asked by Amber 
English
Another question regarding the poem Annabel Lee. Can you check my response for me and help me elaborate on the rhythm explanation please; 1. What is the overall tone of the poem? How does the rhythm of the poem affect the tone? my ans: The tone of the poem
asked by Wendy 
Chemistry ( I NEED HELP REAL QUICK )
How much Al is needed to react with 675 mL of 0.655M HCl solution according to the reaction => 2Al + 6HCl→2AlCl3+ 3H2 Help your friend!
asked by Farrell 
math
I need to calculate the effective interest rate of a simple discount note $21,750 at an ordinary bank discount rate of 7.91% for 120 days find the effective rate
asked by Anoymous 
English help
What is the resolution and exposition in 10 things I hate about you? I need help!!
asked by Anonymous 
Dynamics
The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of
asked by Anonymous 
Algebra
You have two types of bread, three types of meat, and four types of cheese. How many different sandwiches can you make if each sandwich has one type of bread, one type of meat, and one type of cheese? 9 sandwiches *My answer* 16 sandwiches 24 sandwiches 27
asked by Mae 
maths
two chords,AB and CD ,of acircle intersect at right angles at a point inside the circle. If m(angleBAC):35,FIND m(angleABD).
asked by tarekegn 
Algebra
Evaluate. Write in simplest form. 6b/3a a=10 a=9 My answer is 2 or 5...I'm not sure
asked by Mae 
Chemistry
What is the molarity of a bleach solution containing 6.6 g of NaOCl per liter of bleach? answer please
asked by Dave 
chemistry
39.3 grams of c6h6 are allowed to react with 108.3 grams of o2. How much co2 will be produced by this reaction?
asked by Lindsey 
math
I am having trouble understanding how to solve this problem. I found an answer, about 74.2%, but I am not sure if that is correct. Any help would be greatly appreciated! A chess board has 64 squares, 32 white and 32 black, and is played with 16 black and
asked by anonymous 
science
A ping pong ball and a penny are placed in water. The ping pong ball floats while the penny sinks? What property of water does this demonstrate? I think it has to do with the density. The reason the ping pong ball floats is because it has a lower density
asked by mmv 
chemistry
Why does acetone evapourate faster than water in terms of intermolecular forces
asked by nicole 
Physics
A car drives over a hump in the road. The radius of the (circular) hump is 45m. How fast (m/s) would the car need to travel, so that the wheels just barely lose contact with the road?
asked by Kaitlyn 
Algebra
Write 9.79 x 10^5 in standard notation.
asked by Mae 
math
what is a probability of rolling a total of 5 when a pair of number cubes is rolled once
asked by Dee 
math
margaret Hillman invested $4,000 at 1.2% compounded quarterly for one year. find the futrue value and the interest earned for the year
asked by Anoymous 
Chemistry check
H2O2+MnO2 > MnO2 + H2O Is my work correct?
asked by Rain 
maths
calculet the volume and total surface area of aright circular cylinder of height 1m and radius 70cm.
asked by tarekegn 
Algebra
Find the GCF of 14abc and 28a^2 b^2 c^3 How do I answer this??
asked by Mae 
Probability
Let θ be an unknown constant. Let W1,…,Wn be independent exponential random variables each with parameter 1. Let Xi=θ+Wi. What is the maximum likelihood estimate of θ based on a single observation X1=x1? Enter your answer in terms of x1 (enter as x_1)
asked by Fire 
Algebra
Anita owns a beauty supply store. Every two weeks she receives a supply of shampoo. Every four weeks she receives a carton of nail polishes. Every eight weeks she receives a box of combs, and every twelve weeks she receives a box of hair dyes. If Anita
asked by Mae 
computer
The merge process involves which two types of files? A. Main document and data source B. Text and merge fields C. Mail merge template and mailings D. Primary and secondary
asked by yogita 
electronic medical records
if a physician is charging for a mole removal procedure based on what he and other physicans gerally say for that procedures,hes probably using
asked by chrys 
algebra
3 shirts and 2 hats cost $52. 2 shirts and 1 hat cost $32. Find the cost of each.
asked by Lori 
Ethics and Social respo.
What is one of the most fundamental questions in the issue of whether or not one can ethically use stem cells from embryos for research? (Points : 1) How many embryos are there? What is the dividing time for cells in an embryo? From whom did the embryo
asked by Gia 
math
on monday 464 students went on a trip to zoo .all 9 buses were filled and 5 students had to travel in cars. how many students were in each bus?
asked by paul 
Algebra
Order from least to greatest: 2.1, 3/5, 0.7, 7/10
asked by Raven 
Chemistry check my answers
Please check my answers For each of the 7 reactions in this experiment, write a balanced equation and classify it as a synthesis, decomposition, single replacemnt, neutralization, or double replacement reaction. Reaction 1 1)Adjust a burner flae to high
asked by Kim 
First Nations Studies 12
Activity Sheet 510. Analysis: Louis Riel's summation to the Jury speech. Please someone help me with these questions if you can please!! I REALLY NEED THE HELP!!!??? What information is left out of his speech? What other sources of information could you
asked by sasha 
Algebra
Write 0.000000474 in scientific notation.
asked by Mae 
Criminal Justice
Which of the following changed the laws on investigating terrorism? A. The USA PATRIOT Act B. The SarbanesOxley Act C. The Homeland Security Act D. The AntiTerrorism and Effective Death Penalty Act is it A
asked by Amy 
math
Hello Sir, I have a question . A bird collector wants to buy 100 birds and to spend exactly $100. 1 Blue Bird= 7 dollars 1 Green Bird= 5 dollars 20 Yellow Birds= 1 dollar How many blue, green, and yellow birds can he buy? Please sir i'm waiting for your
asked by tanveer 
economics
the south african government is not providing enough welfare or subsidies to the poor and underpriviledged
asked by nkazimlo 
Algebra 1
What are the solutions to the system? y=x^2+5x9 y+2x+1
asked by Steve 
chemistry
How would this problem be worked using dimensional analysis? Answer is 1.32g and I can work it (.900/13.6) * 20 = 1.32 But i need it in dimensional analysis and the hint was to first find volume of mercury. How many grams of alcohol with a density of 0.900
asked by Rachel 
chemistry
how many grams of solid magnesium nitrate should be added to 5.0 grams of solid sodium nitrate in a 500 mL volumetric flask in order to produce an aqueous 0.25M solution of NO3 ions (once the flask is filled to the 500mL volume line)? No idea where to
asked by alex 
Algebra
Paul needs 3 1/4 yards of fabric to make one tablecloth. How many tablecloths can he make from 20 1/2 yards of fabric. 67 7 My answer 6 66
asked by Mae 
Algebra
Find the least common multiple: 2b^2 and 12c^3
asked by Mae 
henry ford
A rocket is fired at a speed of 74.0 m/s from ground level, at an angle of 68.0 ° above the horizontal. The rocket is fired toward an 49.8m high wall, which is located 32.0 m away. The rocket attains its launch speed in a negligibly short period of time,
asked by Anonymous 
math
a circular maize field has a radius of 200m .What is the length of fence around this field
asked by ceidic 
Algebra
Mr. Johnston needs a shelf to hold a set of textbooks, each 1 3/4 in. wide. How many books will fit on a shelf that is 35 in long?
asked by Raven 
MATH Help (NOT MULTIPLE CHOICE) PLZZ
The O’Toole’s leave their house in Canada to vacation in Mexico for a week over winter break. In their absence, their house receives an average of 8 inches of snow per day each day during the sevenday period. However, the average air temperature rises
asked by YOLO 
Algebra
Which fraction is not equivalent to 6/10? 3/5 EQUIVELANT 12/20 EQUIVELANT 6/10  6/10 I know the first two are equivalent to 6/10 but I'm not sure about the last two.
asked by Mae 
science
If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? A. A+ 1, Z + 1 B. A1,Z1 C. A+ 1, Z1 D. A1, Z + 1 My answer is B
asked by sandra 
algebra (check my work)
60% of what number is 24? a/w = p/100 24/w = 60/100 24 * 100 = 60* w 2400 / 60 = 60w / 60 w = 40 am i correct?
asked by susan 
mat/116
a student scores 74 out of 100 on a test. if the maximum on the next test is also 100, what does the student to maintain an average of 78
asked by Madrox 
math
compute the compound amount and the interest on a loan of $19,400 compounded annually for 6 years at 12%
asked by Anoymous 
earth science
_____ currents assist in the transfer of energy from warmer climates to cooler climates
asked by dustin 
ap chemistry
a cell is based on the following reaction Fe(s)+2Fe+3(aq) > 3Fe+2 (aq) E cell= 1.18 V. Calculate the concentration of iron (II), in M, if the cell emf is 1.28 V. when [Fe^(3+)]= 0.5 M the answer is 0.047 M
asked by Anonymous 
Foreign language, French
I need help with speaking portion of the VHL Central Lesson 2B Enregitrez as I can't really hear the speaker quite properly. If someone is currently doing the course ( the course is French 2) that will be ideal but any and all help I will find acceptable.
asked by Alex 
Algebra
What is the prime factorization of 180? My answer 2 x 2 x 3 x 3 x 5 Am I right?
asked by Mae 
Algebra (VERY IMPORTANT)
2/3(4x+2)^2 +1= 9
asked by Rach 
Math 7
A photo studio offers different sized prints of the same subject. The original print measures 8 inches by 10 inches. A printer enlarges the orginal the orginal by a scale factor of 1.5, and then enlarges the second image by a scale factor of 3. What are
asked by Sierra 
Algebra
Mary thinks that a quarterpound hamburger is heavier than a 5 oz hamburger. Explain why she is incorrect.
asked by Mae 
Algebra
Jane and Jeff are selling cheesecakes for a school fundraiser. Customers can buy New York style cheesecakes and strawberry cheesecakes. Jane sold 14 New York Style Cheesecakes and 4 Strawberry cheesecakes for a total of $250. Jeff sold 7 New York Style
asked by Debra Higgins 
Algebra
Find the product Simplify if possible: 12y/13 * 11/24
asked by Mae 
Math
I brought a book and paid $1.80 in sales tax. If the tax was 8%, what was the cost of the book. How do I solve this problem?
asked by Anna 
Business
Market environment assay
asked by Anonymous 
math packet
how do I solve the following: 2x(x3)+3=4
asked by charlie 
English help
What is the resolution in the taming of the shrew?
asked by Anonymous 
Math
A cylinder is 12 cm tall and has a diameter of 3 cm. What is the total surface area? Pi x radius x radius=3.14 x 1.5 x 2=9.42 cm Pi x diameter= 3.14 x 3= 9.42cm length x width= 9.42 x 12= 113.04cm Total Surface Area= 9.42+9.42+113.04=131.8cmsquared. The
asked by Skye 
Physics/Dynamics
A truck has wheels of diameter 0.9m, a weight of 8000kg, a wheelbase of 4m, and a tray height of approximately 1.2m. The truck’s weight distribution is 50% on the rear wheels and 50% on the front wheels. The truck’s front springs have a combined
asked by Brett 
American Government
The voting rate among 18  24 year olds in 2004:
asked by Joshua 
Algebra
A set of encyclopedia has 27 volumes. each volume is 1 3/8 inches thick. If the volumes are placed side by side, how long will the set be?
asked by Mae 
Algebra
Solve for h: 3/7 h = 9
asked by Mae 
Algebra
Suppose that a virus doubles every 3 hours. If a person has 30 virus cells, how many will he have after 9 hours? I got 810,000. 30*30=900 900*900=810,000 or would it be 240 since 30*2=60 60*2=120 120*2=240
asked by elioseaowl 
criminal justice
what are all the procedlural and substantive ways that a prosecutor and a defense attorney can resolve a case before it goes to a grand jury?
asked by sam 
Biology
How a radioactive element will decay over time?
asked by john 
biology
If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? A. A+ 1, Z + 1 B. A1,Z1 C. A+ 1, Z1 D. A1, Z + 1 My answer is B.
asked by sandra 
Foreign language, French
I also need help understanding what the speaker for Lesson 4A Decrivez is saying because she kind of mumbles and I can't catch it. If someone is currently doing the course ( the course is French 2) that will be ideal but any and all help I will find
asked by Alex 
algebra
2(x3) 6x Is that the right answer?
asked by b 
chemistry
15g of calcium hydroxide is dissolved in 500cm^3 of water 300cm^3 of the solution is used to neutralise hydrocloric acid of/5mol.dm^3 how do i calculate the volume of the acid
asked by happy 
Math
Which number is NOT divisible by 9?
asked by Mae 
Algebra
A microscope can magnify the specimen 10^4 times. How many is that? My answer 10 x 10 x 10 x 10 = 10,000 times Am I right?
asked by Mae 
Algebra
x^7 * y^3 * x^8 * y^2 can you help me find the answer?
asked by Mae 
Algebra
Order 3.21 x 10, 42 x 10^4, and 0.11 x 10^10 from least to greatest
asked by Mae 
Math
triangle abc has sides that are 20 centimeters 38 centimeters and 50 centimeters in length . it is related to triangle cde by a scale factor of 0.5 what are the lengths of the sides of triangle CDE. I need help to figure this out. Thanks
asked by Kent 
science
what happens to insulin when kidney failure happens?
asked by mmv 
American Government
The fourth branch of government refers to
asked by Joshua 
math
i have 5/6 yards of fabric to make shirts I need 1/12 yards of fabric for each chirt. How many shirts can I make? 5/6 x 1/12
asked by jamal 
Statistics
The performance of students is given by the following result: 52,74,54,12,47,36,48,84,65,42,15,45,74,36, 47,53,57,32,41 and 58. If the pass mark is 50. What is the probability that a student should score 84?
asked by Amidal 
Algebra
Simplify 3/7  4/m
asked by Mae 
math
rosa needs $4,000in three years to make a down payment on a car how much must she invest today is she reeceives 0.5% interest annually compounded annually.
asked by Anoymous 
math
rosa needs $3,000in three years to make a down payment on a car how much must she invest today is she reeceives 0.5% interest annually compounded annually.
asked by Anoymous 
Algebra
Solve for h: h + 3/8 =  1/4
asked by Mae 
Algebra
Solve for t: 15 3/4 = t + 4 5/8
asked by Mae 
math
how to cut a 10 ft board into 9 smaller boards
asked by tiffany 
Math
Express the given equation in rectangular coordinate equation and sketch the curve. r^2=1+sin(theta)
asked by Help Please 
Social Studies
Southerners justified secession with the theory of Constitutional rights. Federal rights. the Union's errors State's rights. I think the answer is state's rights. Please correct me if i am wrong.
asked by NoOneImportant 
Social Studies
Is there a website that talks about rebuilding the twin towers?
asked by Aron 
Math Thanks
2 Eight children from the Schickel family are combining their savings to purchase a gaming system to connect to and play on their television. The gaming system is on sale at their favorite discount electronics store for 10 percent off of its regular price
asked by YOLO 
algebra
6 slices of pizza and 4 drinks cost $12.60 while 3 slices of pizza and 4 drinks cost $8.10. What is the cost of each?
asked by Lori 
Math
What is the equation of the parabola with a focus of (4, 5) and a vertex of (4, 2) opening upwards? y  2 = 1/12(x  4)^2?
asked by Anonymous 
maths
solve for x if 2cos(x30)=1, £(90;270)
asked by Mahlako