Questions Asked on
April 18, 2014

math (cant figure it out)
Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on
asked by person 
math 8th
Find the circumference of the given circle. Round to the nearest tenth. circle (1 point) 22.0 cm 38.5 cm 11.0 cm 42.8 cm
asked by james 
English
Choose the correct usage to complete the sentence: Are you ______________ to be in here? Suppose or supposed
asked by Sandra 
math
A bicycle wheel has a diameter of 63cm.calculate how many times the wheel turns round in travelling 19.8km. Use the value 3 1/7 for pi
asked by charity 
Math
Hello I was wondering if you can help me with a question, I cant seem to figure it out. Q: A cone has a radius of 24 cm and a volume of 1,920 cm. What is the volume of a similar cone with a radius of 18 cm? A: 480 cm B: 810 cm C: 1,080 cm D: 1,440 cm
asked by SebbyChan 
chemistry
what type of reaction occurs Fe3O4 + 4H2 → 3Fe + 4H2O
asked by Kyle 
Stats Class HELP!
Twentyfive blood samples were selected by taking every seventh blood sample from racks holding 187 blood samples from the morning draw at a medical center. The white blood count (WBC) was measured using a Coulter Counter Model S. The mean WBC was 8.636
asked by Katie 
Chem
AgNO3 solutions are often used to plate silver onto other metals. What is the maximum amount of silver in grams that can be plated out of 4.2L of an AgNO3 solution containing 3.1% Ag by mass?
asked by Marianella 
Social Studies
Which of the following is a reason why Turkey is not as advanced as other European countries when considering the economy? A. A large part of the Turkish economy is agriculture. B. Turkey did not have enough trade barriers. C. Turkey does not have any
asked by Anonymous 
calculus
A person 150cm tall is walking away from a lamp post at the rate of 15 meter per minute. when the man is 2.5m from the lamp post, his shadow is 3m long. Find the rate at which the length of the shadow is increasing when he is 7m from the lamp post.
asked by nurul 
MATH
An open box with a square base is to be made from a square piece of cardboard 24 inches on a side by cutting out a square of side x inches from each corner and turning up the sides.Graph V=V(x)
asked by lisa 
Math
A man looks up at the top of a tree. The angle of elevation is 42 degrees. If the tree is 20 feet tall, which of the following best represents the distance from the base of the tree where the man is standing?
asked by Judi 
mathematics
a drinks machine dispenses coffee into cups. A sign on the machine indicates that each cup contains 50 ml of coffee. the machine actually dispenses a mean amount of 55ml per cup and 10% of the cups contain less than the amount stated on the sign. assuming
asked by latoya 
Chemistry
A flask was immersed in 350 g of water at 25 degrees C. Steam at 100 degrees C was passed into this flask, and eventually condensed into water at 100 degrees C. If the temperature of the water surrounding the flask was raised to 70 degrees C, how many
asked by Amanda 
Physics
A large water tank has an inlet pipe and an outlet pipe. The inlet pipe has a diameter of 2.19 cm and is 2.13 m above the bottom of the tank. The outlet pipe has a diameter of 5.49 cm and is 4.85 m above the bottom of the tank. A volume of 0.359 m3 of
asked by mican 
Physics
The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a dog is 40.0 kg, what is the weight of the dog?
asked by Jane 
Social Studies
Which question would be best to consider when researching the effects of oil in the Middle East? A. Why are there larger oil reserves in some countries compared to other countries? B. In which country in the Middle East are the largest oil reserves? C. How
asked by Anonymous 
Science
What is the main benefit of using scientific names instead of common names for organisms? Scientific names have been around for much longer than common names have. Scientific names give everyone a shared terminology while common names can vary around
asked by Anne 
physical
You are playing a note that has a fundamental frequency of 440.00 Hz on a guitar string of length 59.1 cm. At the same time, your friend plays a fundamental note on an open organ pipe, and 4.0 beats per seconds are heard. The mass per unit length of the
asked by mican 
Calculus Help Please Urgent!!!
A piece of wire 14 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral triangle. (a) How much wire should be used for the square in order to maximize the total area? 14 m this one I got right (b) How
asked by Nane 
Economics
What percentage of income is spent on lottery tickets by (a) A poor family with an income of $19,000 per year who purchase the average amount of lottery tickets for their income bracket?
asked by Aarica 
chemistry
what is the pH of 0.80 M NaCN? what is the pH of 0.80 M NaCN? What is the concentration of HCN in the solution? I did this so far: I 0.8..... 0....0 C x.......x....x E 0.8x....x....x (x)(x)/0.8x How do I solve for x?
asked by Jenny 
math
Katrina's ski boots cost 8% more than her skis.Her ski boots cost $162. Whick equation can be used to find the cost, c, of Katrina's skis? a. c + 0.08c =162 b. c + 0.8c = 162 c. c  0.08c = 162 d. c  0.8c = 162 please answer and explain
asked by thomas 
English
1. Take exercise on a regular basis, and you will be a happy person. 2. Earn a lot of money, and you will be a happy person. 3. Drive in the country, and you will be a happy person. 4. Play the violin, and you will be a happy person. 5. Play soccer with
asked by rfvv 
Paper Writing
I am writing a paper where I cite multiple lectures by the same professor. How do I format the intext citations?
asked by Claire 
Applied mathematics
Steve mixes together 1 6/8 gallons of apple juice, 1 3/8 gallons of orange juice, and 1 1/8 gallons of cranberry juice. How much fruit punch does he make?
asked by Achilles 
Stats
Of 43 bank customers depositing a check, 18 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (b) Check the normality assumption.
asked by Kevin 
math
Regis has a bag with 8 tiles numbered 1 through 8. He randomly draws one tile from the bag without looking.Which of the following decribes a likely outcome? a. He selects a tile with the number 0. b. He selects a tile with the number 4. c. He selects a
asked by thomas 
math
ABCDEF is a regular hexagon. If the perimeter = 12 find the area of ABCDEF.
asked by thomas 
Algebra
Add (3/2a) + (5/2a)
asked by Sandra 
Algebra
Add: (3/2a) + (5/2a) Possible answers: 8/4a, 2/a, 15/4a2^ or 4/a
asked by Sandra 
Chemistry
A 1.0 liter flask is filled with a mixture of two gases at 20. oC until a pressure of 14.43 atm is established. If 0.40 grams of the mixture is hydrogen, how many moles are there of the other gases?
asked by Carrie Boom 
Algebra 1
4 pencils and 5 pens cost $2.00; 3 pencils and 4 pens cost $1.58. Write out a system of equations that would represent this situation.
asked by Alex 
Math
A bag contains nine red marbles, four green marbles, three blue marbles, and two yellow marbles. If Lisa draws a random marble from the bag, what is the probability that it will be a red, green, or blue marble?
asked by Lyla 
physics
Two stars are 4.40 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.03 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that
asked by Ethan 
Physics
1) Determine the extension of the trampoline when a 200 kg person stands on the trampoline. (k=12000) 2) If on the first push, the trampoline went 8.0 cm below its position in part 1, find the average force exerted by his leg muscles? For the first
asked by Pink 
calculus
A bug crawls along the graph of 2 y x x 4 1 , where x and y are positive and measured in centimeters. If the xcoordinate of the bug’s position x y, changes at a constant rate of 3 cm/min, how fast is the ycoordinate changing when the
asked by muadh 
Calculus
Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. intergral s^2/(1+3s^4) ds from sqrtx to 1 F'(x)=?
asked by Brady 
Calc
Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. intergral s^2/(1+3s^4) ds from sqrtx to 1 F'(x)=?
asked by Brady 
Stats Class
The EPA city/hwy mpg range for a Saturn Vue FWD automatic 5speed transmission is 20 to 28 mpg. If you owned this vehicle, how large a sample (e.g. how many tanks of gas) would be required to estimate your mean mpg with an error of ±1 mpg and 90%
asked by Katie 
sociology
A research study being conducted to test the effects of administering nicotine to healthy volunteers, who have never smoked, nor used any tobacco products, on their attention and memory would most likely require which level of IRB review? (Points : 1)
asked by can you check my answers 
Algebra
Add... 8 + (x1) / (x+4)
asked by Sandra 
science
Water is flowing in a pipe as depicted in the figure. As shown, p = 113 kPa, d = 4.57 cm, d' = 3.22 cm, v = 4.40 m/s, and h = 1.25 m. What pressure is indicated on the upper pressure gauge? Take y = 0 at the bottom of the left pipe so that the center of
asked by mican 
Calculus Help and Check
1)Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative. Remember to use ln u where appropriate.) f(x) = (1/5)−(3/x) > (x/5)3lnx+C 2)Find f. f ''(x) = 4 + 6x +
asked by Kimberly :( 
Calculus2
Consider the function f(x) whose second derivative is f''(x)=8x+4sin(x). If f(0)=3 and f'(0)=2, what is f(x)?
asked by Brady 
financial analysis
A zero coupon bond with a par value of 1,000 has 15 years to maturity. If the YTM is 6.2% what is the current price of this bond?
asked by belinda 
math
A cow is attached to a rope in a pasture bordered by two fences ( each 60 feet long) which meet at an angle of 24 degree. If the rope attached to the cow is 15 feet long, over how many square feet can the cow graze? a. 2 pi b. 15 pi c. 30 pi d. 45 pi e.
asked by thomas 
geology
Building Isochrons and Determining the Ages of Three Rocks Page 15 of 17 For each of the three rocks listed below follow these steps to determine the rock's age of formation. 1. Prepare an isochron by plotting the points that represent the amounts of
asked by angela 
Chemistry
A sample of a gas has a volume of 250. mL at 2.10 atm and 227 oC. What volume will it have at standard temperature and pressure (STP)?
asked by Carrie Boom 
Physic
Water enters a horizontal pipe with a rectangular cross section at a speed of 1.00 m/s. The width of the pipe remains constant but the height decreases. 27.3 m from the entrance, the height is half of what it is at the entrance. If the water pressure at
asked by mican 
statistics
The mean score for all individuals who took the Law School Admission Test (LSAT) in 2010 was 155 and the standard deviation was 7. 9. What is the z score for a person, who received an LSAT score of 167? a. +1.71 b. +1.64 c. +1.74 d. 1.71 10.What is the
asked by Marty 
physics
A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true?
asked by duke 
Civics
Which best describes how the internet has contributed to cultural diffusion in the united states?
asked by Krystal 
coputer
Write a program that asks the user to enter the high temperature for each day of one week. Store the temperatures in an array. Once completed, output all temperatures that have been stored into the array.
asked by carine 
science
explain the Eutectic and Eutectoid reaction in cast irons
asked by Andy 
stastic
A can of Coke is supposed to contain, on the average, 16 ounces of soda with a standard deviation of 0.4 ounces. Suspecting fraud, you take a random sample of 50 cans and measure the amount of Coke in each. Your measurements show that the 50 cans had a
asked by kima 
Math
WE HAD TWO PIZZAS JIM ATE 3 SLICES OF ONE AND KATE ATE 1/4 OF THE OTHER ONE.WHO ATE THE MOST?
asked by SHYMIR 
Social Studies
Which of the following facts could be best used when supporting Kurdish independence? A. Most of the Kurdish people are not Shia Muslims, but are Sunni Muslims. B. Outside governments have repressed Kurds harshly before. C. Kurds were included in Iraq by
asked by Anonymous 
budgiting
Which one of the following statements best describes a budget "blind spot"? A. Too little money was set aside to cover an expense. B. This is an expense the person overlooked or did not account for when setting up the budget. C. This is an item that
asked by Sarah 
agriculture
1. name two negative effects of low pH 2.name two effecof low alkaline soil 3.name 3 causes of soil acidification 4.name two causes of brackish soil
asked by masaka cindy 
cost accounting
Marvin’s Motors Company (MMC) manufactures outboard motors for use on small to medium sized boats. MMC produces three models: the Standard, the Deluxe and the Performance. The company uses a normal job costing system with manufacturing overhead applied
asked by Anonymous 
Statistics
A sample of 50 homes in a subdivision revealed that 24 were ranch style. a) Construct a 98 percent confidence interval for the true proportion of ranchstyle homes b) Check the normaility assumption.
asked by Dayna 
Stats. Class
a. What sample size would be needed to estimate the true proportion of students at your college who are wearing backpacks, with 95% confidence and and error of +/0.04? b. What sampling method would you recommend? Why?
asked by Katie 
Science
How does DNA get passed from one generation to the next?
asked by Zari 
sociology
Miranda has a theory that some people are able to “see the future.” She has tested this theory and found that she is unable to produce an individual with above chance predictions. She revises her theory to explain that when asked about the future,
asked by can you check my answers 
math
15. which of the following figures will not tessellate the plane? a. rhombus b. equilateral triangle c. regular hexagon d. regular pentagon
asked by Anonymous 
Math
A ramp has a height of 3 feet and a base of 12 feet. Which of the following best represents the angle of elevation? A. 14 degrees B. 16 Degrees C. 18 Degrees D. 20 Degrees
asked by Judi 
Math
A ball is filled with helium. If the ball has a diameter of 24 inches, what is the maximum amount of helium that the ball may hold?
asked by Judi 
Psychology
Is Gender a social construct referencing cultural behavioral expectations for men and women
asked by Kim 
statistics
Scores on a national exam assume a normal distribution with a population mean of 50 and population standard deviation of 10 points. A sample of 36 exam scores was selected from UCA with a mean score of 58 points. Using a significance level of 0.01,
asked by Anonymous 
Physics
f a 40 kg weight and a 200 kg weight each dropped from 1 m above the trampoline, find the final position of each weight. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. I was able to get the answer to this, using
asked by Rose 
psychology
Traumatic events do not always result in a diagnosable psychological disorder What factors determine how a person may be affected by one such event?
asked by Larry 
mathes
how do calculate this 55 divided by 3500
asked by mara 
Statistics
Hi, Are market returns (with numbers such as 3.45, 4, 2.456 representing the "returns") ordinal or nominal data? Thanks!
asked by Candice 
math
when the price of a box of peanuts is increased by 30% its sales decreased by x% such that the revenue decreased by 9%.what is the value of x?
asked by kiranmayi 
Calc Help
Find the most general antiderivative of f(x)=–8e^x–6secant^2(x), where pi/2
asked by Brady 
Can someone please proofread my lead!
Hi this is my lead for a old court case I was assigned. The Michigan Court of Appeals finds no error in the trial courts disposition of favoring defendant Ionia SentinelStandard newspaper entry of summary judgment over the plaintiff’s claims regarding
asked by Blaze 
statistics
in throwing two dice find the probability ofcoming even number on both probability of coming odd number on dice probability of different number on both dice
asked by shumaila.imtiaz 
Psychology
Changes based on biological and psychological forces are functions of
asked by Kim 
MATH FACTOR POLYNOMIALS
Factor the polynomial. Please show all work. x^2+2x3
asked by andra 
ethical systems
religion and common law ethical systems identify the common as well as contradictory elements between the two systems
asked by Anonymous 
alg
(7 − i)(2 + i)
asked by alg 
Math
z+1/z=2; z=? (1/z is a fraction) Please show work. I got C.1 as my answer. A.Square root of 3 B.1/2 C.1 D.1 1/2 E.2
asked by Johnny 
algebra 117
f(x)= (x+8)^2 right 15 units
asked by stephanie 
math 117
determine equation for g(x) that results from translating the function f(x)=x^2 +5 upward 6 units
asked by stephanie 
Algebra
finding the equation to the perpendicular lines. y=x+4; (7,1)
asked by michelle 
Teachers aide
A loss of a parent is considered to be an example of a/an ______stress?
asked by Soso 
English
1. I don't read the novel yet. 2. I cannot start to do the work yet. 3. I will not open the bottle yet. 4. I don't want to go there yet.  Are they all grammatical?
asked by rfvv 
math
Use the following to answer question 7: Point Bread Tractor A 20 0 B 18 1 C 14 2 D 8 3 E 0 4 Refer to the above schedule. Starting at point A, the opportunity cost of producing each successive unit of tractors is: a constant 2 units of bread 8, 6, 4, and 2
asked by Anonymous 
Precalculus
Prove that the left side equals the right side Tan + sec 1 / tan sec + 1 = tan + sec
asked by Anonymous 
English
1. Plant the potato pieces deep in the ground. 2. Plant the pieces of potato deep in the ground. 3. Plant the pieces of potatoes deep in the ground. (Which one is grammatical?)
asked by rfvv 
health
I have not seen any question to answer
asked by charity 
Please help
integral (t^3=6t^2+4)dt from 0 to x f''(x)=?
asked by Brady 
statistics
a box contain five silp of paper marked 1,2,3,4and5 tow silp are selected without replacement,list the possible vaule for each of following random variable the sum of two number on two silp the difference between the first and second number
asked by shumaila.imtiaz 
Stats
Find the 95 percent range for the sample mean, assuming that each sample is from a normal population. a. ì = 200, ó = 12, n = 36 b. ì = 1,000, ó = 15, n = 9 c. ì = 50, ó = 1, n = 25
asked by Kevin 
math
If Ѳ is in Quadrant II, and cos Ѳ=3/4 , find an exact value for sin 2Ѳ.
asked by james 
Statistics
A random sample of 47 students studied for an average of 7.1 hours last week. If the population standard deviation is 1.2 hours, what is the 90% confidence interval for the population mean?
asked by Monica 
chemtry 1
If 0.500mol of argon gas occupies 2.35L at 725mmHg what is the temperature in degrees Celsius?
asked by shadow16 
cultural diversity
when middleclass mainstream teachers reprimand children for verbalizing spontaneously, they show a preference for facilitating language development through
asked by elisha