Questions Asked on
August 10, 2011

MATH HELP!!!!!!
A number is rounded to 5,349,000.What are the smallest and greatest possible values for this number?

geometry
when two lines intersect, they form two pairs of "opposite" angles called _________ angles?

Physics
A horizontal pipe narrows from a diameter of 10 to 5 cm. For an incompressible fluid flowing from the larger diameter to the smaller: Question 5 options: 1.the velocity and pressure both increase. 2.the velocity increases and the pressure decreases. 3.the

PHYSICS  HELP
A wind with speed 45 m/s blows across a roof 20 m long and 12 m wide. The pressure inside the room is 1 atm. What is the net force on this roof due to the pressure difference inside and outside the roof? (The density of air is equal to 1.3 kg/m3.) Question

geometry
when two angles in a plane share a vertex and a side but no common interior points, they are called_________ angles ?

physics
A 700N man jumps out of a window into a fire net 10 m below. The net stretches 2 m before bringing the man to rest and tossing him back into the air. What is the spring constant of the net? What is the velocity just before hitting the net? (hint: Use

math
in a class of 28 sixth graders , all but one of the students are 12 years old. which two data measurements are the same for the student's ages? What are those measurements?

Chemistry
I'm so confused as to how to even begin the problem and where to put whats given to me into an equation. 1) If the value of Kp is 0.5 for the distribution of a compound between pentane (solvent 2) and water (solvent 1), and equal volumes of the two

geometry
In Triangle ABC, AD is median. If AB is 8, BC is 18, AD is 7, find AC

physics
An ice hockey puck slides along the ice at 12 m/s. A hockey stick delivers an impulse of 4.0 kg*m/s causing the puck to move off in the opposite direction with the same speed. What is the mass of the puck? I tried all sorts of ways to set this up and I

geometry
a spherical water storage tank has a radius of 10ft. A cubic foot of water is about 7.5 gallons. How many gallons of water will the tank hold?

math
How many gallons of paint are required to paint the entire area if one gallon covers 25 square feet? Note: 10 ft. 7 in. is equivalent to 10.58 ft.

Math
Hasan made a model for 437 using 4 hundreds, 3 tenns, and 7 ones. What are two other ways he could show 437 using baseten blocks?

math
Write a decimal that has 3 in the tenths place and 1 in the tenthousandths place

algebra
Use only the numbers 3,5,6,2,54,& 5 in that order to write an expression that has a value of 100

Chemistry
Nitrogen and hydrogen, with volumes of 12.0 L each, are injected into a sealed rigid reaction chamber containing a catalyst. The pressure of the chamber is 8.00 atmospheres and at a known temperature. The reaction is allowed to proceed to completion while

math
Charlie and Alexandra are running around a circular track with radius 60 meters. Charlie started at the western most point of the track, and, at the same time, Alexandra started at the northernmost point. They both run counterclockwise. Alexandra runs at

math
a ferris wheel with a diameter of 76m. about how far would you travel in 8 turns ?

math
write a cosecant function with a period of 4pi, phase shift of 4 pi, and vertical shift of 8. My answer:csc(theta/28pi)8

statistics
More than 200 billion grocery coupons are distributed each year for discounts exceeding $84 billion. However, according to a report in USA Today, only 3.2% of the coupons are redeemed. If a company distributes 5000 coupons, what is the probability that:

BIOLOGY
Please tell me if I am getting them right? PLEASE HELP In a moist area of the woods, you see a mass of small, green plants with tall, thin, nongreen projections coming from their centers. These plants are probably A. seedbearing. B. nonvascular. *** C.

Algebra
A cube measures 5 cm on each side. How long is the diagonal that connects two opposite corners of the cube? Give an exact answer.

algebra
The size of a certain cell is 2.5 × 10–9 m. Another cell is 1.5 × 103 times larger. How large is the larger cell in scientific notation?

MATH NEED HELP!
I have four questions in one. 1. A library crew can shelve books in six hours. Another crew can do the job in four hours. If the first crew begins and is joined by the second crew one hour later, how many hours will it take to finish the job? 2. Find a

physics
A 500g block is released from rest and slides down a frictionless track that begins 2m above the horizontal. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 20.0N/m. Find

physics
a ball is released from rest and rolls down a slope. It covers 7.5m in 12.4s. Find the average speed of the ball in m/s and km/hr.

nat.sci.101
what is the change in temperature of a steel if the linear expansion is 16m which was originally 10m at 10 degree celcius.

chemistry 101
What is the pH of a solution in which 296 mL of HCl g, measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

math
Describe two methods to convert 9/20 to a decimal.

physics
calculate the momentum ofa toy car weighing 200 gram and moving with a velocity of 5meter/second?

physics
A 40 g marble moving at 2.3 m/s strikes a 29 g marble at rest. Assume the collision is perfectly elastic and the marbles collide headon. What is the speed of the first marble immediately after the collision? What is the speed of the second marble

physics
the change in velocity of a car that starts at rest and has a final velocity of 20m/s north

english
I don't know if my experience would be considered good or bad, but it really taught me a lesson. A few years ago, I was working a bank, and they had a representive from a cell phone company come and talk to everyone about getting a cell phone. I did not

Physics _ College
A 50 cm long hollow glass cylinder is open at both ends and is suspended in air. A source of sounds that produces a pure frequency is placed close to one end of the tube. The frequency is placed close to one end of the tube. The frequency of the sound

algebra
Annual profit in thousands of dollars is given by the function p(x)=, 1x^2 + 50x  300, where x is the number of items sold, x is greater or equal to 0. Describe the meaning of the number 300 in the formula, in terms of its meaning in relation to the

physics
a charged particle with a charge ratio of 5.7E8 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0,27T, How much time does it take for the particle to complete one revolution

business
the direct approach for delivering bad news is best for people who a. you don't know well b. prefer straightforward messages c. are unfamiliar with your company

Chemistry
Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and nonpolar amino acids would vary.

geometry
4x(23x)+5

Calculus. Please help!
Find the minimum value of the function f(x,y= 25x^2+3y^2+20xy+10x+4y+10 subject to the constraint 5x^2+4xy=1. I solved fx=50x+20y+10 fy=6y+20x+4 gx=10x+4y gy=4x Then what?

Physics _ Please please help
The crosssectional area of the Utube shown below is uniform and is equal to one square centimeter (1.00cm^2). One end is open to the atmosphere. Atmosphere pressure may be taken as P1=1.01 * 10^5 Pa. The other end of the Utube is connected to a pipe in

Math PLEASE HELP!!!!
In march 2005,about 35,200,000 immigrants were recorded as living in the United States.What place was this number rounded to?

geometry
How many degrees is the base of your scalene triangle if the left leg at 35°and the right leg is 25°?

Ap World History
What were two main ways that ideas and technologies were transmitted between civilizations?

history
what factors enabled the Europeans to quickly assert their hegemony over indigenous peoples in the Americas and to compel Eastern potentates to yield to European commercial demands or to accept Western political control?

Real Estate Law
For the most part, mortgage loans are made by __________ institutions. (Points: 5) a. lending b. personal c. private 4. government I think its A

Alga...
DonniceLifesaver I just want to know if my answer right?? Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 10x – y = 12.5 3x + y = 7

algebra
DonniceLifesaver I just want to know if my answer right?? Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 10x – y = 12.5 3x + y = 7

history
how did the Iberian Reconquista figure in shaping modern Europe [Europe after 1500]?

Psychology
Animosity often exists because people are unwilling or unable to see the world or a single experience from the perspective of another person. People often make snap judgments based on the first thing they see or hear about a person. Consider a person in

Physics
Temperature decreases (gets colder) resonant frequencies decreases.. WHY?

Math
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 8x + 11y = 50 32x – 44y = 200

Math
A car tire has a diameter of 3 feet and is revolving at a rate of 45 rpm. At t = 0, a certain point is at height 0. What is the height of the point above the ground after 45 seconds? Can you lead me into the right direction?

Math
This is the question 9^5 (the five is an exponent)/9^2 (the two is an exponent) those two numbers are fractions. How am i supposed to write them in expanded notation?

music..plz check my answers
2. Jody says that atonal harmony establishes a harmonic center of gravity. Sean says that atonal harmony doesn’t have a harmonic center of gravity. Who is correct? A. Only Jody is correct. B. Only Sean is correct. C. Both Jody and Sean are correct. D.

Math
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 8x + 11y = 50 32x – 44y = 200

PHYSICS
A hollow brass cylinder is weighed on a pan balance (kitchen scale) which read in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid density 1.56 * 10^3 kg/m^3; the scale now reads 17.50

SCI 241 Nutrition
The question is "Address the nutritional needs of the following" Infants, Teenagers, Adults, Women during pregnancy, and Older adults... The other part is: Use one slide to illustrate each stage of life detailing the needs of the man in one column and the

MUSIC...HELP..HOPE THIS IS BETTER
2. A) Jody says that atonal harmony establishes a harmonic center of gravity. Sean says that atonal harmony doesn’t have a harmonic center of gravity. Who is correct? A. Only Jody is correct. B. Only Sean is correct. C. Both Jody and Sean are correct. D.

algebra
2x=x+7

physics
A car moves at a constant speed of 24m/s. How long (in minutes) will it take to travel 15.0 km?

math
I just started the 5th grade and I don't understand one of my math problems. The problem is Mr. Smith bought 2 similar Tshirts and a belt. He paid $100 to the cashier and received $13 in change. Find the cost of each Tshirt. (shouldn't the price of the

Physics
An artery branches into two smaller veins, identical arteries as shown in the diagram. The largest artery has a diameter of 10 mm. The two branches have the same diameter = 5 mm. The average speed of the blood in the main artery is given in the diagram.

Physics
An artery branches into two smaller veins, identical arteries as shown in the diagram. The largest artery has a diameter of 10 mm. The two branches have the same diameter = 5 mm. The average speed of the blood in the main artery is given in the diagram.

statistics
The probability that a person has an unlisted telephone number is 0.15. The district manager of a political action group is phoning people urging them to vote. In a district with 416 households, all households have phones. What is the probability that the

math
Can 0 be the identity for multiplication? Explain why or why not.

managerial economics
I am in need of an example of a benefit cost analysis for renting a home versus buying a home.

statistics
Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The distribution is moundshaped with mean μ = 80.04 cents per gallon and standard deviation, σ = 4.74 cents per gallon. (a) Are we

statistics
More than 200 billion grocery coupons are distributed each year for discounts exceeding $84 billion. However, according to a report in USA Today, only 3.2% of the coupons are redeemed. If a company distributes 5000 coupons, what is the probability that:

algebra
simplify the fraction 4t to the second power16 over 8 over t2 over 6

math
Im a little confused can someone please help? Solve: 7x24=26 1/3 This is what i did, not sure if I did it right. 7x24=26 and 1/3, 24 from both sides 7x= 2 and 1/3, then divide by 7 and got x= 2 and 1/3 over 7 I have no idea how to right that so

Lasea  Music
Hopefully someone will do 1420. Sra

math
i am a 4 digit number.my thousands didgit is 4 less than my tens digit.my hundreds digit equals the sum of my tens digit and my ones digit.my tens digit is 4 more than my ones digit.my ones digit is 1.what number am i?

introductory technology
A boat is tied to a stake on a fast flowing river. What energy does the boat gain when the rope is cut.

Math
How would you do the inverse of this function: 1/7sqrt(16x^2)? I know you switch the x and y and solve for y. I keep on getting a weird answer. Help!

grammar
what's the different when using "plus" and the word "and"? For example, the choices to the problem were: 1. Cronkite was known for his honest presentation of the news PLUS his reassuring tone 2.Cronkite was known for his honest presentation of the news AND

Precalculus
How do you find the number of complex roots in a function?

public administration
what are circumstances that determine public policy

history
what is a detailed labelled policy of robert menzies? in fact what is a labbeled ant communism policy?

chemistry
is it true that most element and some compounds are paramagnetic.

Math
Number of goals : 0, 1,2,3,4,5 Number of matches : 7,x,5,3,1,4 (a) if the mean number is more than 2, find the largest possible value of x. (b) if the median number of goals is 2, find the largest possible value of x

English
guidelines on how to write a letter to your teacher inviting her for your birthday party.

math
two ways to determine if an equation is linear

math
Fun Lanes Bowling charges a fee of $4 to use their shoes and $6 for each game played. Salim wants to figure out how much it will cost him to bowl. Part 1: Write an equation representing this problem. Let x be the number of games bowled, and let y be the

jewelery
i have a braclet with a d with a / threw it is this real?

us history
How did American Indians resist and protest white Americans' treatment of them in the late 1800s?

physics
determine the speed of a transverse wave in a string with length 2m, mass 60g under a tensionof 500N.

math
Bethany has 43 apples. Write a subtraction story about the apples that would required regrouping.

physics
The world's fastest humans can reach speeds of about 11 m/s. In order to increase his gravitational potential energy by an amount equal to his kinetic energy at full speed, how high would such a sprinter need to climb? How do you set this up?

help
can someone help me with this music...it has to b turned n by tomorrow morning..its already been posted

STATISTICS HELP!!!!!!!
The probability that a person has an unlisted telephone number is 0.15. The district manager of a political action group is phoning people urging them to vote. In a district with 416 households, all households have phones. What is the probability that the

Physics Help
1.9 kg block slides along a frictionless surface at 1.8 m/s. A second block, sliding at a faster 4.5 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 3.5 m/s. What was the mass of the second block? How

STATISTICS HELP!!!!!!!
Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The distribution is moundshaped with mean μ = 80.04 cents per gallon and standard deviation, σ = 4.74 cents per gallon. (a) Are we

College statistics
Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The distribution is moundshaped with mean μ = 80.04 cents per gallon and standard deviation, σ = 4.74 cents per gallon. (a) Are we

Western Civilization
What factors led Atlantic community states to seek ways to access Asian markets by avoiding the Mediterranean late in the 15th and early in the 16thcenturies, and what factors enabled the Europeans to quickly assert their hegemony over indigenous peoples

Spanish
11.) El profesor___, y el estudiante___. Atermina las clase, empieza la clase Bensena, estudia Censenar mucho, estudiar Dempieza la clase, terminar 18.)___. tocas la guitarra? A Miguel BJuan y Carlos C Felipe, Ana y Barbara DSenora Carreras

ALGEBRA
what is the domain of f(x)=4x^27x +3

STATISTICS HELP!!!!!!!!!!!!
More than 200 billion grocery coupons are distributed each year for discounts exceeding $84 billion. However, according to a report in USA Today, only 3.2% of the coupons are redeemed. If a company distributes 5000 coupons, what is the probability that:

math
find the solution of the system of equations 10x5y=20 and 7x5y=20

physics
A car and a motorbike both are running at the same speed. Which of the two has greater momentum and why?

Western Civilization
Describe the historical context and then outline the essential elements of the reforms Martin Luther urged upon Pope Leo X when he posted his 95 Theses on the Castle gate at Wittenberg, Germany in 1517. Then, cite specific practices to illustrate how

physics
A toy car rolls at a constant speed down a straight inclined track. When the car reaches the flat surface at the base of the inclined track, the speed of the car decreases.

writing
does anyone know a timeline about john paul 2's life?

English
Ironic statement Don'trust your heart because it's not on the right side. Answer: true

STATISTICS
The number of boxes of girl scout cookies sold by each of the girl scout in a city has a distribution which is approximately normal with a mean=75 boxes and a standard deviation=30 boxes.... 1.) find the probability that scout chosen at random sold between

Loss of Traction
Trying to get my learners, would like to know what loss of traction means.. Is it slipping of the tires?

geometry
1.The surface area of a rectangular prism is 150 cm². If all the sides are tripled, what will the new surface area be?

history
What factors led Atlantic community states to seek ways to access Asian markets by avoiding the Mediterranean late in the 15th and early in the 16thcenturies?

world history
Which of the following archaeological evidence suggests that the Olmec were shamanistic?