Questions Asked on
June 13, 2012

Nuclear Chemistry
The half life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gammaray photons: (0e+1)+ (0e1)> 2γ (the 0 in front of e is the mass # and behind it is the atomic #) (γ stands for the photons) This
asked by Anonymous 
math
Oakwood Plowing Company purchased two new plows for the upcoming winter. In 200 days, Oakwood must make a single payment of $23,200 to pay for the plows. As of today, Oakwood has $22,500. If Oakwood puts the money in a bank today, what rate of interest
asked by Anonymous 
Essay:)
Topic: Compare and Contrast the Tang and song dynasties China? The Tang Dynasties (June 18,618June 4,907)was an imperial dynasty of china preceded by the Sui Dynasty and followed by the Five Dynasties Ten Kingdoms period. It was founded by the cifamily.
asked by Ciara 
probability & statistics
How many distinguishable permutations of letters are possible in the word COLORADO? is it 8!/3!?
asked by Anonymous 
Math
Carlo drove for 3 hours in a fog, then increased his speed by 30 miles per hour (mph) and drove 6 more hours. If his total trip was 540 miles, then what was his speed in the fog.
asked by Ciara 
Geometry
When finding the surface area of a composite figure, which in this case consists of a square pyramid sitting on top of a cube, I know that the first step is to find the surface area of the cube, but after that I would find the surface area of the square
asked by Anonymous 
math
Farmer Hodges has 50 feet of fencing to make a rectangular hog pen beside a very large barn. He needs to fence only three sides because the barn will form the fourth side. Studies have shown that under those conditions the side parallel to the barn should
asked by jamie lynn 
trig
Use a table of trigonometric values to find the angle è in the right triangle in the following problem. Round to the nearest degree, if necessary. cos è =0.9659 A=? H=20
asked by kellie 
geometry
What is the area of a regular pentagon with a side length of 10 inches and a distance from the center to a vertex of 10 inches? Round your answer to the nearest tenth.
asked by Katie 
Math
Find how much interest $15,000 earns in 4 years in a certificate of deposit paying 8.5% interest compounded quarterly.
asked by Amanda 
personl finance
Bill Mason is considering two job offers. Job 1 pays a salary of $43,300 with $5,310 of nontaxable employee benefits. Job 2 pays a salary of $40,500 and $6,380 of nontaxable benefits. Use a 20 percent tax rate.
asked by jessi 
statistic & probability
Question: a resturant offers 6 possible appetizers, 11 possible main courses, and 5 possible desserts. How many different meals are possible at this restuant? two meals are considered different unless all three courses are the same. is it (22 C 3)?
asked by Anonymous 
Update Geometry Question
What is the probability of a randomly tossed bean bag landing in the yellow target area? Gray is 2m and yellow 0.75m Use 3.14 for pi and round to nearest whole percent. A. 38 B.14 C.36 D.3
asked by Katie 
Chemistry
Ammonia, NH3, is a stronger ligand than Cl but weaker than CN. Complete the balanced equations for the reactions that are predicted to occur. CoCl6^3 (aq) + CN (aq) > Co(NH3)6^3+ (aq) + Cl (aq) > Co(CN)6^3 (aq) + NH3 (aq) >
asked by Jane 
cook
1. In the real world of brand recognition and popularity, _______ accounts for the fact that mediocre products and services often trump quality. A. foolishness B. lower cost C. perception D. consumer preference
asked by ninjalette 
physics
An arrangement of two pulleys, as shown in the figure, is used to lift a 49.6kg mass a distance of 3.70 m above the starting point. Assume the pulleys and rope are ideal and that all rope sections are essentially vertical. (a) What is the mechanical
asked by Akbar 
physics
An object experiences an impulse, moves and attains a momentum of 200 kg m/s. If its mass is 50 kg, what is its velocity?
asked by Louis 
economics
suppose the government borrows $20 billion more next year than this year. use a demand and supply digram to analyze this policy. does the intrest increases or fall?
asked by Anonymous 
statistics
A group of 50 teachers and school administrators attended a convention. If any two persons are picked at random, at least one of the two would be a teacher. From this information, what percentage of the people at the convention were teachers? Could someone
asked by Katia 
physics
Two boys on skates push off from each other. The 40 kg boy moves to the left at 10 m/s. If the other boy moves to the right at 8 m/s, what is his mass?
asked by Louis 
math
How many gallons of 5% acid solution should be mixed with 20 galllons of a 10% acid solution to obtain an 8% acid solution
asked by Andrea B 
Algebra 2
Log² x + log² 3 = 1
asked by Jackie 
statistics
A purchasing agent wants to estimate the mean daily usage of rye flour. She takes a sample for 50 straight days and find that the sample mean is 180 lbs with a sample standard deviation of 38.5 lbs. a)State the 90% confidence interval for the mean.b) State
asked by Lynn 
Algebra 2
log4 (x2)  log4 (x+1) = 1
asked by Please Help! 
statistics
A final exam in sociology has a mean of 72 and a standard deviation of 9.2. If 35 students are randomly selected, find the probability that the mean of their test scores will be greater than 76. Round to tenth of a percent
asked by Anonymous 
math
in one elementary school class the following information on sports preferences was obtained: 7 liked tennis; 11 liked baseball; 9 liked soccer; 5 liked tennis and baseball; 3 liked baseball and soccer; 2 liked tennis and soccer; and 2 liked all three
asked by rob 
math
Samantha lent her brother some money at 9% simple interest and her sister onehalf as much money at 16% interest. If she received a total of 34 cents in interest, then how much did she lend to each one?
asked by Andrea B 
math
A frame maker made a large picture using 10 feet of frame molding. If the length of the finished frame was 2 feet more than the width, then what were the dimensions of the frame.
asked by Andrea B 
economices
suppose the government borrows $20 billion more next year. what will happen to the investment ? private saving? to public saving? to national saving? compare the size of the change to $20 billion of extra government borrowing
asked by Anonymous 
MATH
Two truck drivers leave a cafe at the same time, traveling in opposite direction. One truck goes 1 mph faster than the other one. After 4 hours, they are 396 miles apart. How fast is each truck going?
asked by A 
math
Splitting investments. Joan had $3,000 to invest. She invested part of it in an investment paying 8% and the remainder in an investment paying 10%. If the total income on three investments was $290, than how much did she invest at each rate?
asked by jamie lynn 
UPDATE to Ms Sue
If JKL is similiar to DEF and JKl has sides that are 11 times greater than those of DEF what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The
asked by Katie 
Chemistry
For the following fusion reaction, calculate the change in energy per mole. 2/1 H + 3/2 He > 4/2 He + 1/1 H
asked by Anonymous 
math
The following sequence of figures begins repeating in the fifth figure. The fifth figure has 2 squares, 2 triangles, and 1 rhombus. How many triangles will there be in the 176th figure?
asked by nick 
math
A shirt originally sold for $ 35. Now it’s on sale for “20 % off”. If the sales tax is 6 %, what is the final price of the shirt?
asked by claudia johnson 
Nuclear Chemistry
For the following fusion reaction, calculate the change in energy per mole. 2/1 H + 3/2 He > 4/2 He + 1/1 H
asked by Anonymous 
catering
Which of the following would you want to do when developing a marketing position? A. Market yourself as a general caterer willing to accept any type of job. B. Position yourself in an untapped consumer market. C. Emphasize your inexperience and gain
asked by heavenlee 
Algebra
Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $8.24 and twice as many adult tickets as student tickets were sold, then how many of each were sold?
asked by Anonymous 
Chemistry
For the following fusion reaction, calculate the change in energy per mole. 2/1 H + 3/2 He > 4/2 He + 1/1 H
asked by Anonymous 
statistics
I visited a beautiful flower garden yesterday and counted exactly 90 flowers. Each flower was either red or yellow, and the flowers were not all the same color. My friend made the following observation: No matter which two flowers you might have picked, at
asked by Katia 
probability & statistics
Q: if A and B are independent events, how many of the following statements must be true? 1. A' and B are independent 2. A and B' are independent 3. A' and B' are independent is choice 3 the only one that is true?
asked by Anonymous 
Physics
Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 Ù and 1.97 Ù. Obtain the ratio of the smaller crosssectional area to the greater crosssectional area.
asked by Beth 
Math
Karl wants to get $80,000 for his house the real estate agent charges 8% of the selling price for selling the house. What should the selling price be?
asked by jamie lynn 
Biology
Growth by cell division that makes both ends of a plant longer but not wider is called A secondary growth. B annual ring growth. C vascular growth. D primary growth. is it D? thanks
asked by Alexa 
math
The number of dogs and chickens on a farm add up to 14. The number of legs between them is 36. How many dogs and how many chickens are on the farm if there are at least twice as many chickens as dogs?
asked by dan 
Algebra 1a
I want to know if I have this right translate the phrase into mathematical expression and then simplify six times a number subtract thrice the same number. 6n3n 6x3x
asked by BERNIE 
Physics
Consider three conducting spheres each 10 cm in diameter. “A” has a net charge of 5 C, “B” has a net charge of 10 C, and “C” has a net charge of zero, but is placed in an electric field of 1000 V/m. Rank the electric field strength inside the
asked by Beth 
Math Models
The distance needed to stop a car (d) varies directly with the aquare of the speed of the car (s). If a car traveling 25 mph requires 0 feet to stop, how many feet will be required to stop a car that is traveling at 60 mph?
asked by Andre 
Physics
A 0.140 kg baseball traveling 39.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 13 cm. What is the average force applied by the ball on the glove?
asked by Mike 
algebra
The sum of two number is 40.Two times the smaller number exceeds the larger number by 38.Find the number
asked by lucia 
Physics
Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.24 m from the spot, while charge B is 0.37 m from it. Find the ratio qB/qA of the charges.
asked by Beth 
Physics
A 13.0 kg box is released on a 33 degree incline and accelerates down the incline at 0.20 m/s^2. 1. Find the friction force impeding its notion? 2. What is the coefficient of kinetic friction? *Are we dealing with Kinetic or Static Friction...this will
asked by Mike 
Math
Find three consecutive even integers whose sum is 252
asked by Ciara 
arithmetic
if tanx+cotx=2 then the value of tan^5x + cot^10x is
asked by aman 
algebra
If a pine cone is projected upward at a velocity of 16ft/sec from the top of a 96foot pine tree, then how long does it take to reach the earth?
asked by Anonymous 
Geometry/Algebra
Two opposite angles of a parallelogram are (5x2)degree and (40x)degree. Find the measure of each angle of a parallelogram.
asked by Anonymous 
Chemistry
What is the concentration of a solution of lithium carbonate containing 0.01 mol in 750 mL of solution What volume of 0.01 mol L1 Li2CO3 solution would contain 0.035 mol lithium carbonate? Give your answer as 2 sig fig (this is technically not correct),
asked by Preity Zinta 
Grammar
Do i need to capitalize the word everlasting? > The everlasting God, the Lord, the Creator of the ends of the earth, fainteth not, neither is weary. WHY and Do i need to capitalize the word everlasting? Please help.
asked by Losa 
Math
Sam lent her brother some money at 9% simple interest and her sister onehalf as much money at 16% interest. If she received a total of 34 cents in interest, then how much did she lend to each one?
asked by Andrea B 
Physics
What is the magnitude of the average force required to stop an 1500 kg car in 8.0 s if the care is traveling at 95 km/h? Sum of F = ma?
asked by Mike 
Chemistry
For the reversible, onestep reaction A + B ARROW C + D, the forward rate constant is 35.9 1/(M·h) and the rate constant for the reverse reaction is 25.4 1/(M·h). The activation energy was found to be 33.0 kJ/mol for the forward reaction and 45.6 kJ/mol
asked by parker 
Grammar
Im confused when it comes to capitalizing red sea? i know i have to capitalize the word red because it show's what kind of sea, a red sea of course. But am i suppose to capitalize sea too, or capitalize the word red ONLY?
asked by Losa 
Algebra 2
log² 16 = x
asked by Jackie 
MATH
what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The perimeter of JKL is 11 times greater then DEF. D. The perimeter of JKL is 121 times greater
asked by Katie 
physics
a spacecraft is traveling in space fa from any planets or stars. How much force is required to maintainthe spacecraft's speed?
asked by Louis 
algebra
One half of the boys and onethird of the girls of Freemont High attended the homecoming game, wheras onethird of the boys and onehalf of the girls attended the homecoming dance. If there were 570 students at the game and 580 at the dance, then how many
asked by Bryce 
science
Clay is a plastic material. Does thia imply that it is a polymer
asked by kratika 
chemistry
A substance placed in a container has a fixed volume and takes up the shape of the container. In which state does this substance exist?
asked by julie 
Math, Geometery
Hey Guys I have a problem like on the kids on here. What is the area of a regular pentagon with a side length of 10 inches and a distance from the center to a vertex of 10 inches? Round by nearest tenth. I know you have to use pythagrean therom to solve
asked by Ashley 
physics....
Suppose that the inside length of a microwave oven is 30 cm. If the length of a microwave oven is one half of the wavelength of microwaves used by the oven, find the frequency of the microwaves used in the oven. What is the equation that relates the three
asked by kennedy 
chemistry
What pressure is a person exerting on the floor if the person weighs 145 lbs and has shoes that contact the floor over a total area of 300. cm^2?
asked by Angela 
Business Math
Joanne Flynn bought a new boat for $16,200. She put a $2,800 down payment on it. The bank’s loan was for 50 months. Finance charges totaled $5,380.00. Assume Joanne decided to pay off the loan at the end of the 22th month. (Rule of 78) What rebate would
asked by Riquetta Elliott 
Update
what is the relationship between the perimeters of the triangles A. They are equal. B.The perimeter of DEF is 11 times greater than the perimeter of JKL. C. The perimeter of JKL is 11 times greater then DEF. D. The perimeter of JKL is 121 times greater
asked by Katie 
Business Math
To help consumers in this tough economic climate, Pikes Peak HarleyDavidson offered to finance a new motorcycle for qualifying customers at 14% down, 11.00% interest for 60 months during July 2009. Rich Martinez was interested in calculating what his
asked by Riquetta Elliott 
Math
The radius of circle A is 9 times greater than the radius of circle B. Which of the following statements is true? A.The area of circle B is 9 times greater than the area of circle A B.The area of circle A is 9 times greater than the area of circle B. C.The
asked by Kim 
statistics
A CBS/New York Times poll found that 350 out of 757 adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with 95% confidence level.
asked by smrey 
goverment
_____ divides the government into three branches, each controlled by a different group of people
asked by jiquan 
math
Uncle Albert's estate is to be divided among his three nephews. The will specifies that Daniel receive onehalf of the amount that Brain receives and that Raymond receive $1,000 less than onethird of the amount that Brain receives. If the estate amounts
asked by jamie lynn 
MATH
Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824.00 and twice as many adult tickets as student tickets were sold, then how many of each were sold?
asked by SHEENA 
Math
Find the sum of the first 35 consecutive odd numbers. What is the sum of the first 350 consective odd numbers?
asked by Linda 
statistics
The proportion of adults in the US with basic literary skills is 43%. If a hypothesis test is performed on this, how should you (in terms of the claim) interpret a decision that rejects the null hypothesis?
asked by linds 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
asked by Anonymous 
geometry
Determine which if any of the three statements are equivalent, give a reason for your conclusion. Show complete work. I). If the dog wags its tail, then the dog is not calm II). Either the dog does not wag its tail or the dog is not calm. III). If the dog
asked by eliot 
Art
I have to write 3 observations of the sculpture The Standing Buddha, of how the facial expressions depict his role in society. He has a serene smile with closed eyes. I wrote about his smile and his eyes.. but I don't know a third thing to write about.
asked by Anonymous 
Physics
When we are supposed to calculate the value of "temperature coefficient of resistance " i.e. α , how are we supposed to choose between the following two formulae : α = (R2  R1) / (R1*T2  R2* T1 ) or α = (R2  R1)/ [ R1 *( T2T1) ]
asked by Preksha 
Algebra 2
Log27+log27(x+8) = 2/3
asked by Jackie 
physics
An object falls from the top of the school, which is 6.06m high. Assume air resistance can be ignored and the acceleration is 9.8m/s^2 If the object was dropped( not thrown) , what is its speed after 0.333s How long does it take to hit the ground
asked by Melissa 
algebra
find the domain and the range f(a)=t f(b)=s f(c)=q f(d)=t f() domain a,b,c,d range t,s,q,t Ican not remember if I am suppose to put the second t i the f(x) or a o and remove the second t?
asked by BERNIE 
punctuated
the neighbors new dog is small, quiet and shy
asked by Lorraine 
physics
A body of mass 5.0kg slides from rest down a plane inclined at 30degrees to the horizontal. After sliding 12m down the plane it is found to have a speed of 10m/s. a) How much work has been done in overcoming friction along the plane? b) Calculate the
asked by sand 
economics
efficiency can best be defined as
asked by Anonymous 
Chemistry
How many moles of lithium carbonate are contained in 400 mL of a lithium carbonate solution with a concentration of 0.015 mol L1? Give your answer as two sig. figures, followed by a space and the units
asked by Kareena Kapoor 
Chemistry
What is the concentration, in mol L1, of a solution containing 1.2 g of lithium carbonate in 100 mL solution? Give your answer as 2 sig fig, followed by a space and the units (remember the units given in a previous question).
asked by Sameera Ready 
Chemistry
What is the concentration, in g/L, of a solution containing 0.65 mol HNO3 in 150 mL solution? Give your answer rounded to nearest whole number, followed by a space and the units.
asked by Sonakshi Sinha 
History
I have to answer these questions about a topic: What is it? Why is it important? My topic is: The US and Haiti in the 21st century. Any ideas?
asked by Kelsie 
statistics
In order to test a new production method, 36 employees were selected randomly to try the new method. The mean was 75.79 parts per hour with a standard deviation of 28.25 parts per hour. Calculate a 95% confidence interval for the true mean production rate
asked by jp 
Algebra 2
log5 (log3³)
asked by Jackie 
Intermediate Algebra
Please Help!! Use the discriminant to determine whether the follow equations have solutions that are: two different rational solutions two different irrational solutions exactly one rational solution or two different imaginary solutions. 8x^2+7x+3=0
asked by ladybug 
Math
Explain how to graph the inequality m < 3 on a number line
asked by Kingbla 
Physics
Two identical charged particles of mass m=1.6 kg and electric charge Q=5.2 μC are placed on an frictionless 26° incline. One of them falls down to the bottom and stops against the wall. The other stays at rest in the middle of the incline as shown in
asked by Alex 
Math
I need help with this problem  tried working 5(2x  10)÷ 2 + 14 = 19
asked by AMY 
Trig
Find sin2theta, cos2theta if csctheta=13/12 and lies in quadrant II. Thank you!
asked by Sara 
Chemistry
If 20ml of a 2.0M solution of HCl is diluted to 500mls, what is its new molarity? How do I work this out
asked by Shane 
Business
If you were a business consultant hired to assist a company outline a strategy for going global, what country would you suggest they venture into, what three types of advice would you offer and why?
asked by Toni 
maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
asked by kratika 
MATH
To solve for the following proportion, you could use equivalent ratios, divide out the known ratio, or use cross products. Choose one of these methods to solve for t. Show your work and explain why you chose that method. eighteen over five equals four over
asked by Anonymous 
Chemistry
What is the concentration of a solution of lithium carbonate containing 0.01 mol in 750 mL of solution
asked by Nia Sharma 
Intermediate Algebra
The area of the triangular athelic field is represented by an expression 81y^216z^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense of length times width)of the athelic field; include correct units.
asked by ladybug 
Algebra 2
log x 8 = 2
asked by Please Help! 
Chem
In a titration process it takes 22.00 mL of nitric acid to neutralize 16.70 mL of 0.200 M calcium hydroxide solution. what is the balanced equation and what is the molarity of the acid. please explain
asked by Piper 
vocabulary
is the indirect definition of gloomy, dismal or depressing? please help.
asked by Amanda 
algebra
can someone plz show the steps to solving equation. i believe the answer is 36. (6^5)/(6^3)
asked by Randy 
math
sunita baked a round cake for 11of her friends.she wants to divide it into 11 pieces with only 4 cuts. it is not important that the sizes of each piece should be the same how can she do that ? show it in diagram
asked by NAHID NOORI 
science  chemistry
How much limestone will you need to neutralize lakes, using Snells law formula, and how would you draw that out?
asked by bob 
math
The radius of a circle in terms of its circumference
asked by Angie 
soc
What can be done to reduce homelessness?
asked by meshelle 
Integral calculus
Is it the integral of lnsinx w.r.t x from 0 to pi/2 = integral lnsinx w.r.t x from 0 to pi/4 + integral lncosx w.r.t x from 0 to pi/4 ?
asked by alsa 
science
1. Do you know what is the origin of the word "HiRobo"? It is a robot. 2. Do you know the origin of the word "PaPeRo'? She is a robot made in Japan.
asked by rfvv 
maths
what will be the 6th angle if the other 5 angles are 60,120,70,130,80?
asked by shylaja 
programming
create a program that solves the area of a rectangle
asked by josamie 
math
100x100x100,bases 2 and 5
asked by Anonymous 
maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
asked by kratika 
Math
Consider a die with 8 sides, marked one, two, three, and so on. assuming equally likely outcome, find the probability that the sum of two dice is the given number. If p(10)=
asked by Linda 
Math
Find the ending balance in a account that opens with 6,480, earns 8.5% interest compounded monthly, and is held for 15 years.
asked by Linda 
math
Calculate the expression in common logarithms. log (80)= 6
asked by Linda 
English
I have to write a prologue for Act 3 in "The Tragedy of Romeo and Juliet" using a sonnet. I have no idea of how to write a sonnet and I really need help with this...where do I start?
asked by Anonymous 
math
A train is traveling at avg speed of 90km/hr. How far will it travel in 205 hrs?
asked by bobby 
CJS/210
Will someone please hwlp me find a website to find the answer to this question below? What are the major organizational theories associated with policing. Include your opinion about which theory best serves police organizations.
asked by Picaboo 
Physics(Please check)
There is a PV diagram with ABC and the cycle is moving clockwise. segment AB is isobaric BC is isochronic AC cannot be determined The delta U for this is zero and the W=positive. The last questions asks if the heat flow Q is positive, negative, or zero and
asked by Hannah 
math
If $870 is invested in an account that earns 24.25%, compounded annaually, what will the account balance be after 30 years.
asked by linda 
Math
What is the chances of being dealt a royal flush or a straight? What is the chance of being dealt a straight (but not a royal) flush or better? What are the chances of being dealt a hand that will lose to four of a kind.
asked by Linda 
Chemistry
The Brisbane City Council classifies Brisbane drinking water as moderately soft, with an average hardness of one millimole/litre CaCO3. What is this concentration in ppm?
asked by Shilpa Shetty 
College Algebra
solve each system by substitution method x=y+3 3x2y=4 Pls determine whether the equations are independent, dependent, or inconsistent
asked by sheena 
Chemistry
What volume of 0.01 mol L1 Li2CO3 solution would contain 0.035 mol lithium carbonate? Give your answer as 2 sig fig (this is technically not correct), followed by a space then the units.
asked by Deepika Padukone 
goverment
The _____ implements legislation.
asked by jiquan 
chemistry
is scraping of cheek cells an effective way to find if you have lung cancer?
asked by bob 
Math
Solve the equation from smallest to largest. 2x^2 = 7x + 4. If the no solution.
asked by Linda 
Math
I need help with an equation problem  12÷x = 3 How do I work this problem?
asked by AMY 
Integral calculus
You have not proved to me that the Integral of lnsinx w.r.t.x from 0 to pi/2 is equal to:Integral of lnsinx w.r.t.x from 0 to pi/4 plus Integral of lncosx w.r.t.x from 0 to pi/4.
asked by alsa 
DeskToping
The ______ finger is used to key an ampersand. A. A B. D C. J D. Sem I got D.
asked by Sarah 
alg 1
use the method of substitution to solve the system of linear equation 2xy=5, 9x4y=22
asked by Shannon 
physics
a 1.0kg ball is thrown upward from 1.0m above the ground with a speed of 10m/s reaches a height of 4.5 m. what is the efficiency of the energy transformation?
asked by sarah 
English
1. He left New York for Chicago. 2. He started New York for Chicago. 3. He left for Chicago. 4. He started for Chicago. (Are they all grammatical?)
asked by rfvv 
Physics(Please check)
There is a rod that is split into two sections. The left side is copper with value of 390, temp of 100 degrees c and the length is 2m. The right side is silver, 420, temp 20 degrees celsuis, and length 1m. I need to calculate the temperature. 390 X 1 X
asked by Hannah 
College Algebra
Find the sum of two numbers is 2, and their difference is 26. Find the numbers
asked by Sheena 
DID I DO THIS WRONG?
My homework asked to compare and contrast the expressions of three sculptures. I just wrote how ones eyes were closed, with a serene smile, and the other had eyes that made him seem focused.. I was describing their eyes and mouths.. Does that count?
asked by Anonymous 
Intermediate Algebra
Andrews factored expressions 6x63+9x^23x as 3x(2x^23x1). But when Melissa applied the distrubutive law and multiplied out 3x(2x623x1) she got 6x^3+9x^2+3x;thus Andrews solution does not appear to check. Why is that? Please help Andrews to
asked by ladybug 
math
when we mix a 10% acid solution with a 14% acid solution, we can obtain a solution that is 24% acid
asked by Sheena 
Math
How can we factor trinomial: 36x^2+18x+0 Is thislike this: 18x(2x+1)
asked by Hanu 
Geometry
In a right triangle, sin θ = 9/15. Find the value of tan θ
asked by Taylor 
Phi 200
well, first all, this is all subjective, there is no correct answer. In the end, we're all judging based on our "gut" feeling. My own personal opinion is: eating animal is ok, because that's what we've evolved to do. Just name me one Olympic champion who
asked by Tubby 
phi 200
Do human beings have any obligations to other animals, in terms of their treatment? If it is wrong to treat animals cruelly, why is it not wrong to eat them? Explain if, and how, you think humans can find a balance between treating animals ethically while
asked by Tubby 
English
1. He has lifted weighs on the stage. 2. He has lifted weight on the stage. 3. He has lifted a weight on the stage. 4. He is lifting weights on the stage. 5. He is lifting weight on the stage. 6. He is lifting a weight on the stage. (Which one is correct?)
asked by rfvv 
math
a board is 17ft long and a hole is 1 ft futher from 1 end than it is from the other. How far is the hole from each end of the board shortest distance? Choices 6,8,10
asked by bobby 
math
a board is 17ft long and a hole is 1 ft futher from 1 end than it is from the other. How far is the hole from each end of the board shortest distance? Choices 6,8,10 Ms Sue posted 8 how did you get that answer? can you show me?
asked by bobby 
Biology!!!
What is the function of plasma?
asked by Nicole 
Intermediate Algebra
Rewrite with positive exponents assume that even roots are nonegative quantitives and that all demoninators are nonzeros. (6xy/y)3
asked by ladybug Please Help!! 
Algebra 1
When is it necessary to use multiply numbers in scientific notation?
asked by Bryanna 
english
collage of the chaos and clutter of modern day life in comparison stone age man
asked by nahid 
math
P=2L+2W+L Please check my answer L=P2w/2
asked by Angie 
algebra
the sum of two numbers is 16 and their difference is 8, find the numbers
asked by Sheena 
math
Find the sum of the arithmetic progression 4 + 9 + 14 + 19 + …….94 + 99 + 104
asked by dan 
BOOK
where can i buy the book "holes"
asked by Celest 
subset
form subset from the set of a big circle with 20 stars inside in it.
asked by tin 
apostrophe?
five business days (does "days" need any punctuation
asked by Anonymous 
maths
the denominator of a rational number is greater than the numerator by 6. if the numerator is decreased by 2 and the denominator is increased by 4 . the rational is 1/5 .Find the rational number.
asked by kratika 
math
2x+3y=9
asked by Angie 
math
16t^2=[ ]ft t=14sec
asked by Anonymous 
Intermediate Algebra
factor out the greatest common factor from the expression. 35^8+35^5+28^3
asked by ladybug 
math
y71/3=y7, 9 2 3
asked by Andrea B 
math
5/7x1=3
asked by Andrea B 
math
what is 984 times 4 squared?
asked by bob