Questions Asked on
January 9, 2011

Chemistry
It turns out that the Van Dar Waals constant b is equal to four times the total volume actually occupied by the molecules of a mole of gas. Using this figure, calculate the fraction of the volume in a container actually occupied by Ar atoms: a) at STP b)
asked by Anonymous 
Physics (Help!)
You throw a glove straight upward to celebrate a victory. Its initial kinetic energy is K and it reaches a maximum height H. What is the kinetic energy of the glove when it is at the height H/2?
asked by Erica 
physics
The balance wheel of a watch oscillates with angular amplitude 1.7π rad and period 0.64 s. Find (a) the maximum angular speed of the wheel, (b) the angular speed of the wheel at displacement 1.7π/2 rad, and (c) the magnitude of the angular acceleration
asked by kylie 
Chemistry
Calculate the pressure that ccl4 will exert at 40 of 1.00 mol occupies 28.0 L, assuming that (a) CCl4 obeys the idealgas equation (b) CCl4 obeys the Van der Waals equation. (a) PV = nRT P = nRT / V (b) (P + n^2a/V^2)(V  nb) = nRT CCl4 = a = 20.4
asked by Anonymous 
Science
What occurs when a substance melts? 1) It changes from solid to liquid, and heat is absorbed. 2) It changes from solid to liquid, and heat is released. 3) It changes from liquid to solid, and heat is absorbed. 4) It changes from liquid to solid, and heat
asked by lisa 
ChemII
A saline solution is 0.9% NaCl. What masses of NaCl and water would be required to prepare 50. L of this saline solution? Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.
asked by Eric 
math
Dents and Dings Auto Body buys paint with a list price of $29,000. If the supplier extends trade discounts of 30/35/20, what is the trade discount amount?
asked by bob 
Chemistry
which substance has a definite shape and a definite volume at STP ? (1)NaCl(aq) (2)Cl2(g) (3)CCl4(l) (4)AlCl3(s) is it 4 because its a solid? Am i right ?
asked by Jazmin 
Chemistry
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage
asked by Kevin 
SciencePhysics
You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = .55. The force you exert is horizontal. (a) How much power is needed to push the box at a speed of .50 m/s? (b) How much work do you do if you push the box for 35 s?
asked by Erica 
physics
A 89 kg solid sphere with a 12 cm radius is suspended by a vertical wire. A torque of 0.37 N·m is required to rotate the sphere through an angle of 0.93 rad and then maintain that orientation. What is the period of the oscillations that result when the
asked by kendell 
chemistry
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of a solid containing only uranium, oxygen and fluorine and 0.970 gram of gas. The gas is 95.0% flourine, and the remainder is hydrogen. From data determine the empirical formula of
asked by Deanne 
physics
Two masses are suspended from a pulley as shown in the figure below (the Atwood machine). The pulley itself has a mass of 0.20 kg, a radius of 0.15 m, and a constant torque of 0.35 m·N due to the friction between the rotating pulley and its axle. What is
asked by i need help please! 
chemistry
Na2CO3 + 2HNO3 > 2NaNO3 + H2O + CO2 Time(s) Mass of Flask Plus Contents (g) 0 150.50 10 149.30 20 148.10 30 148.10 a)calculate the average overall rate of consumption of sodium carbonate in mol/min. b)The mass of sodium carbonate consumed in the reaction
asked by lemon 
Spanish
when would i need to use the preterite
asked by Needs Help 
math
find an equation of the line containing the given pair of points. Express your answer in the form x =a,y=b or y=mx+b (1,_1) and (9,9) what is an equation of the line?
asked by Norma 
Physics
A player strikes a hockey puck giving it a velocity of 47.673 m/s. The puck slides across the ice for 0.175 s after which time its velocity is 46.473 m/s. The acceleration of gravity is 9.8 m/s2 . The mass of the puck is 185 g. If the puck strikes the
asked by Mike 
World History
How did the Europeans establish and maintain their trading empires with Asia? ? idk help
asked by Lala 
algebra (inequalities)
a weaver spends $420 on supplies to make wall hangings and plans to sell the wall hangings for $80 each. a. write an inequality that gives the possible numbers of (w) wall hangings the weaver needs to sell in order for the profit to be positive b. what are
asked by Bri 
Physics
A simple harmonic oscillator consists of a block of mass 1.70 kg attached to a spring of spring constant 390 N/m. When t = 2.30 s, the position and velocity of the block are x = 0.173 m and v = 2.830 m/s. (a) What is the amplitude of the oscillations? What
asked by kendell 
physics
A tightly stretched "high wire" is 44 m long. It sags 3.8 m when a 56 kg tightrope walker stands at its center. What is the tension in the wire? 1 NIs it possible to increase the tension in the wire so that there is no sag? so far i know you do the inverse
asked by Haley 
Physics
What would be the appearance of the speedtime curve if the fallng body where so light that the effect of air friction could not be neglected?
asked by Sean 
Geometry
The diagonals of a rectangle are 12 inches long and intersect at an angle of 60 degrees. Find the perimeter of the rectangle.
asked by Mariana 
physics
Two masses are suspended from a pulley as shown in the figure below (the Atwood machine). The pulley itself has a mass of 0.20 kg, a radius of 0.15 m, and a constant torque of 0.35 m·N due to the friction between the rotating pulley and its axle. What is
asked by lissa 
Math
What is 58.8 to the nearest tenth?
asked by Malcolm 
Chemistry
which substance takes the shape of and fills the volume of any container into which it is placed ? (1)H2O (l) (2)CO2(g) (3)I2(s) (4)Hg(l)
asked by lisa 
chemistry
What are the solute particles present in aqueous solutions of each compound? (Select all that apply.) acetic acid
asked by Anonymous 
MATH
APPLY THE RULE [1.5X, 1.5Y] TO THE VERTICES OF TRIANGLE TO GET TRINGLE PQR. COMPARE THE CORRESPONDING MEASUREMENTS[SIDE LENGTHS, PERIMETER, AREA, ANGLE MEASURES] OF THE TRIANGLE
asked by VINI 
Math
How many fivedigit integers are perfect squares?
asked by K 
high school biology
2. Discuss the implication of pollution of the marine and wet land environment. Sight examples from 2 named caribbean countries.
asked by jelly 
physics
Two masses are suspended from a pulley as shown in the figure below (the Atwood machine). The pulley itself has a mass of 0.20 kg, a radius of 0.15 m, and a constant torque of 0.35 m·N due to the friction between the rotating pulley and its axle. What is
asked by melissa 
Chemistry
What is the molality of a solution of sucrose(molar mass=342) dissolved in water that is 25% sucrose by mass?
asked by D 
physics
A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 2.1 m from the edge of the table. The acceleration of gravity is 9.81 m/s2 . What was the cat’s speed when it slid off
asked by jena 
physics
A 14.0 kg cart is moving with a velocity of 7.25 m/s down a level hallway. A constant force of 10.0 N acts on the cart, and its velocity becomes 3.20 m/s. Assume that air resistance is negligible. (a) What is the change in kinetic energy of the cart? (b)
asked by lets go 
physics
A 0.57 kg block oscillates back and forth along a straight line on a frictionless horizontal surface. Its displacement from the origin is given by x = (13 cm)cos[(20 rad/s)t + π/2 rad] (a) What is the oscillation frequency (in Hz)? (b) What is the maximum
asked by Anonymous 
physics
a physical pendulum consists of a uniform solid disk (of radius R = 42.0 cm) supported in a vertical plane by a pivot located a distance d = 13.0 cm from the center of the disk. The disk is displaced by a small angle and released. What is the period of the
asked by kylie 
Physics 11th Grade
Ninja usually weighs 80 kg. He ate 5 kg of cookies over the Holiday Break: a. What is his weight? and B. How can ninja use physics to lose weight?
asked by Anonymous 
AP Psychology
A classmate beleives alcohol, marijuana and cocaine all have similar effects and should be legalized. Carefully evaluate the strenghts and weaknesses of your classmates position. are they asking to list the positive side effects and negative effects of the
asked by Anonymous 
Chemistry
A student dissolves 2.57 grams of iodine [molar mass= 257]in 10.0 grams of carbon tetrachloride [kb = 5.03C/m]. The normal boiling point of carbon tetrachloride is approximately 77degreesC. What is the approximate boiling point of the solution above?
asked by Gina 
chemistry
In general, reaction rates double when the temperature is increased by 10ºC. The temperature of a reaction is increased by 40ºC. The rate of the reaction will increase by a factor of ____? is it 16?
asked by tycoon 
geometry
the length of a diagonal of a square is 22 square root of 2 millimeters. Find the perimeter of the square.
asked by Mariana 
physics
A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 2.1 m from the edge of the table. The acceleration of gravity is 9.81 m/s2 . What was the cat’s speed when it slid off
asked by jena 
Chemistry
If you start with ten grams of lithium hydroxide, how many grams of lithium bromide will be produced? Round to the nearest tenth. Don't forget the units.
asked by Katie 
Relative velocity
A petstore supply truck moves at 25.0 m/ north along a highway. Inside, a dog moves at 1.75 m/s at an angle of 35.0 degrees east of north. What is the velocity of the dog relative to the road?
asked by Sofia 
English  Native speakers
Hello! How do you say in English "Sprachliches Gymnasium"? In other words a high school which program is focused more on foreign languages.
asked by marky 
science
tThe bob of a pendulum swings through a circular arc of constant radius. At what point of the swing does the cord holding the bob exert the greatest entripetal force on it?
asked by Anonymous 
algebra
a pair of skiis in a set of bindingd=s together cost $494. Find the price of each if the skiis cost $10 less than 6 times as much as the bindings?
asked by mang 
MATH 12 HELP!!
a pizza store offers 15 different toppings on its pizzas. what is the probability that 4 randomly selected toppings will include salami and green pepper?
asked by tina 
Chemistry
The molecular formula of a compound containg only carbon and hydrogen is to be determined. When a sample of the compound is burned on oxygen gas, 7.2 grams of water and 7.2 liters of carbon dioxide gas are produced(measured at STP). When 0.600grams of the
asked by Patrick 
thermodynamic
Energy is added to a pistoncylinder arrangement. The piston is withdrawn in such a way that the temperature remains constant. The initial pressure and volume are 200 KPa and 2m^3, respectively. If the final pressure is 100 KPa, determine the work done by
asked by chris 
physics
A pelican flying along a horizontal path drops a fish from a height of 5.0 m. The fish travels 8.5 m horizontally before it hits the water below. The acceleration of gravity is 9.81 m/s2 . a) What was the pelican’s initial speed? Answer in units of m/s.
asked by Anonymous 
reaction rate help
In general, reaction rates double when the temperature is increased by 10ºC. The temperature of a reaction is increased by 40ºC. The rate of the reaction will increase by a factor of ____? is it 16?
asked by tycoon 
Math
define the variable, write the equation, solve and label. Central middle school sold 50 tickits for one night of the shcool play. Student tickets sold for $2 each and adult tickets sold for $3 each. They took in $135. How many of each type of ticket did
asked by Taylor 
geometry
how do i find the radius of the largest circle that can be cut from a square piece of paper with a diagonal of 20cm?
asked by candace 
English  Thiong'o Decolonising the mind
What is the main idea of Thiong'o's essay, Decolonising The Mind?
asked by Bam 
physics
Block A (60 N) and block B (40 N) are connected by a massless cord and are AT REST. Given ìs = 0.8. The friction on A is : 1. 40 N 2. 0 N 3. 24 N 4. 48 N 5. 20 N 6. 60 N 7. 16 N
asked by help ! 
English
I need help figuring out some irony in the short story "Little Benjamin" by Laura E. Richards. I don't quite understand it. Please help?
asked by Nicole 
english communication
which of the following words is a homonym of bare?
asked by Anonymous 
Physics
2.Using the kinematic equations, prove that if two balls are released simultaneously from a table, one with zero velocity and the other with a horizontal velocity Vox, they will both reach the ground at the same time.
asked by Sean 
Physics
An airplane is flying in a horizontal circle at a speed of 105 m/s. The 76.0 kg pilot does not want the centripetal acceleration to exceed 6.35 times freefall acceleration. a) Find the minimum radius of the plane’s path. Answer in units of m.
asked by BIlly 
physics
A small turboprop commuter airplane, starting from rest on a Tallahassee airport runway, accelerates for 21.0 s before taking off. Its speed at takeoff is 56.0 m/s (125 mi/hr). Calculate the acceleration of the plane, assuming it remains constant. Express
asked by Lo 
Chemistry
using the balanced reaction equation for the combustion of propane, determine the number ofmoles of oxygen that would react with.50 mol propane and the number of moles of carbon dioxide that would be produced?
asked by Blake 
physics
An autographed baseball rolls off of a 0.63 m high desk and strikes the floor 0.46 m away from the desk. The acceleration of gravity is 9.81 m/s2 . How fast was it rolling on the desk before it fell off? Answer in units of m.
asked by jena 
algebra (inequalities)
your club is in charge of making pins that students can buy to show their school spirit for the upcoming football game. you have made 225 pins so far, and you only have 120 minutes left to make the rest of the pins. you need to make at least 400 pins. a.
asked by Bri 
Math
A person is standing next to a flag pole.The person is 6ft tall.She casts a shadow 10 ft long.The flag pole casts a shadow of 45 ft long.How tall is the flag pole.
asked by Jenny 
math
Vanna Black pays money for vowels. If consonants are worth nothing and the following words are worth the following amounts, then find the value of each vowel. All vowels are worth the same amount in each but each vowel has a different value. Audacious=$260
asked by Michaela 
Math
Can you please show me how choose the right answer and how to get the right answer. Which problem situation matches the equation below? 5x+5(x+20)=500 F. five people contributed to a fundraiser each give $20 more than the basic amount requested. In all,
asked by AD 
Math
The sum of three consecutive even numbers is 36. If x represents the first of the three consecutive even numbers, which equation can be used to find x? a. x(x+1)+(x+2)=36 b. x+(x+1)(x+2)=36 c. x+(x+2)+(x+4)=36 d. x(x+2)(x+4)=36
asked by AD 
math PLEASE HELP ME
I don't understand this qestion. a firm wants to understand the attitudes of it's minority managers toward it's system for assessing management preformence. below ia a lis of all the firms managers who are members of minority groups. use table b at line
asked by ron jon 
AP Psychology
how does topdown processing leave us vulnerable to illusions? what is the role of attention in behavior? How does experience and culture influence perceptual processes? (ex: perceptual set, context efffects) how do common sensory disorders, like vision or
asked by Anonymous 
physics
A 1.o kg cart A and 2.0 kg cart B are at rest on a frictionless table. A cord and a spring of negligible mass join the two carts. The spring is compressed 0.060m between the two carts until the spring's potential energy is 12 Joules. When the cord is cut,
asked by unknown 
algebra
in 1992, the life expectancy of males in a certain country was 67.5 years. In 1997, it was 69.9 years. let E represent the life expectancy in years t and let t represent the number os years since 1992. The linear function E(t) that fits the data is
asked by Norma 
Geometry
The sum of the squares of the measures of the sides of a square is 256. Find the measure of a diagonal of the square.
asked by Mariana 
Chemistry
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of a solid containing only uranium, oxygen and fluorine and 0.970 gram of gas. The gas is 95.0% flourine, and the remainder is hydrogen. From data determine the empirical formula of
asked by deanna 
science
if an astraunout could jump 40 cm on jupiter how high could he ir she jump on earth how about the moon also????? pleese help me im stuck on this question
asked by abby 
Medical Information Management and office practice
A 67yearold patient was admitted to the hospital on November 4 and discharged on November 18. What's the patient's length of stay? Is the answer to this question: A. 13 B. 15 C. 18 D. 20
asked by jules 
Chemistry
when the beaker has rated capacity of 10 ml, does it mean that it has to be filled to the brim?
asked by Andrew 
Chemistry
Enriched uranium is produced via gaseous diffusion of UF6. Suppose a process were developed to allow diffusion of gaseous uranium atoms, U (g). Calculate the ratio of diffusion rates of U235 and U238, and compare it to the ratio for UF6 given in the essay.
asked by Anonymous 
thermodynamic
The air 10 cm diameter cylinder, as shown below, is heated until the spring is compressed 50mm. Find the work done by the air on the frictionless piston. The spring as the beginning of this process has a displacement of 0.0m with a spring constant of
asked by chris 
math
a cab charges the following fare for ea. trip...first 1/4 mi $2.95 for every additional 1/4 mi or part $0.65 (a)what is the fare for a distance of 1 5/8 mi? my answer...I got $8.85 (b) what is the fare for a didtance of 10 3/4 mi? My answer...$30.25
asked by matt 
math 4th grade
i am a mixed decimal number the sum of my whole number is equal to the sum of my decimal number. my tenths is half of my hundredths and my ones is twice my tenths. if all my digit are even and my hundredths is 8 what number am i. pls. answer my question
asked by mikah 
thermodynamic
The air 10 cm diameter cylinder, as shown below, is heated until the spring is compressed 50mm. Find the work done by the air on the frictionless piston. The spring as the beginning of this process has a displacement of 0.0m with a spring constant of
asked by chris 
Chemistry
As a substance changes from liquid to gas, the average distance between molecules (1) decreases (2)increases (3) remains the same
asked by Jazmin 
science
how do we determine the identification of an unknown substance using a thermochemical test ??? i mean the procedure
asked by mamta 
chemistry reaction rate
2NO(g) + O2(g) → 2NO2(g) + 112 kJ what do you do to increase the reaction rate? decrease in pressure or increase in concentration of NO? HELP!
asked by mikki 
PHYSICS
What is the phase constant (from 0 to 2π rad) for the harmonic oscillator with the velocity function v(t) given in Fig. 1530 if the position function x(t) has the form x = xmcos(ωt + φ)? The vertical axis scale is set by vs = 5.50 cm/s. Since i cant
asked by Anonymous 
geometry
The rectangle ABCD is rotated about the side AB. Find the volume of the solid defined by this rotation. AB = DC = 4cm AD = CB = 2cm
asked by peter 
physics
Block A (70 N) and block B (21 N) are connected by a massless cord and are at rest. Given ìs = 0.8. What is friction A ?
asked by help ! 
Math
How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or right)? B I I N N N O O O O M M M I I A L L My Answer: Starting from B using Pascal's Triangle B 1 1 1 2 1 1 3 3 1 4 6 4 10 10 20
asked by Jeff 
Math
A mailorder company charges $12 for each shirt. Shipping costs $f per oder. Write a variable expression for the cost of odering x number of shirts
asked by AbbyLovesMath 
accounting 205
•Describe for the students the primary objectives of accounting. •Explain the basic terminology of the accounting process or financial reporting. •Explain how accounting can affect your personal life emphasizing professional ethics
asked by asia 
geometry
Find the surface area of each of the following a cube that is 4 cm by 4 cm by 4 cm. A right circular cylinder that is 6 cm by 12cm. A right circular prisim 8cm by 5 cm by 6 cm. A sphere that is 4cm a right circular cone that is 8cm by 6 cm.
asked by crystal 
Chemistry
the difference between the boiling point and the freezing point of pure water at standard pressure is (1)32 K (2)273 K (3)100 K (4)373 K
asked by Jazmin 
english communication
the following words each contain the letters c, i, and e. which word is spelled correcly?
asked by Anonymous 
Math: Algebra 2
Factor Completely with respect to the intergers. 2x^33x^2+4x6
asked by melissa 
math
i am a threedigit decimal number. my thousandths is twice my tenths and my hundredths is the difference of my thousandths and tenths. what numbers am i
asked by mikah 
math
i am a 2digit decimal. my tenths is twice my hundredths. the sum of my digits is 12. what number am i.
asked by mikah 
Home Economics
Why arethere two sinks side by side in the kitchen?
asked by Mel 
Chemistry
the difference between the boiling point and the freezing point of pure water at standard pressure is (1)32 K (2)273 K (3)100 K (4)373 K
asked by Jazmin 
adv pre algebra
the temperature of a substance increases by 10 degrees celsius in 5 minutes. write this as a unit rate. then convert into degrees fahrenheit per hour.
asked by Anonymous 
Math
Which word describes the equation 17= t  5? A. TRUE B. FALSE C. OPEN D.NOT GIVEN I know it's not a or b and I'm not sure what an open sentence is
asked by AbbyLovesMath 
English
I still have a few doubts. I hope you can have a look at them, too 1)He spent three years building the cathedral. But: He took three years to build the cathedral. 2)We wont's start dinner (the dinner?) until your father arrives home. 3) The Great Fire of
asked by Franco 
science
a 10 N force pushes a body northward while a 15 N force acting at the same point of the body pushes it southward. Find equilbrant of these two forces. do I add or subtract? what about direction
asked by anonymous 
Math
Lyla deposited $250 in an account earning 4% simple interest. At the end on one year, how much was in the account, assuming no more deposits or withdrawals?
asked by abby 
Chemistry
When 2.50g of an unknown solute is dissolved in 40.0g of ethanol the solution boils at 79.4C. The normal boiling point of this substance is 78.4C and it has a kb of 1.22C/m. (a) What is the molality of this solution? (b) What is the molecular weight of the
asked by Mark 
Physics
how do i find the volume of a block of platinum weighing 45.5 kilos
asked by please help me 
algebra
sqrt(45)+ sqrt(20)+ sqrt(5)sqrt(125)=?? I came up with 6sqrt5 I know it's wrong. I think I messed up the breakdown of the sqrt of 125
asked by Alex 
Algebra
the perimeter of a rectangle is 32 m. The length is 4m more than twice the width
asked by Ronda 
Life Span Development
Someone tells you that she has analyzed your genetic background and environmental experiences and concluded that environment definitely has had little influence on your intelligence. What would you say about this analysis?
asked by Emily 
subject and verb
could you please tell me what is the verb and subject in this sentence: Some young couples have decided to move to more rural areas in order to avoid the pressures of city living.
asked by carmen 
Psychology
if a person copied answers off another persons test, what would that say about their maturity?
asked by Anonymous 
English
Sorry to bother you, but i have to make a map of maycomb and I wanted to know the location of the chinaberry trees and the streetlight dill hangs around
asked by Anonymous 
STI'S
Hiv makes you immune to aids? is this true? You can get hiv from someone who doesnt have hiv? false?
asked by Anonymous 
Math 11
Solve for feta to two decimal places: Sin feta=0.5 feta= _____
asked by Kayleigh 
English
I forgot to include these sentences. I hope you can have a look at them, too. 1)I live on a farm. I like my village because in the summer (in summer?) I can collect fruits, run in the fields and go biking (cycling?). 2) I can also go jogging. In October
asked by Franco 
physics
A simple harmonic oscillator consists of a 1.1 kg block attached to a spring (k = 180 N/m). The block slides on a horizontal frictionless surface about the equilibrium point x = 0 with a total mechanical energy of 3.0 J. (a) What is the amplitude of the
asked by kylie 
Math
If a positive twodigit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. If the same twodigit integer is multiplied by the sum of its digits, the product is 112. What is the twodigit integer?
asked by Kinnari 
Business
1 What are the reasons of declines in employee job satisfaction? 2 What factors differentiate good decision makers from poor ones? 3 When do groups make better decisions than individuals? 4 What are the pros and cons for focusing on the distant future and
asked by nikhil 
Trigonometry
Two sides of a triangle are 5 and 8 units respectively. If the included angle is changing at rate of one radian, at what rate is the third side changing when the included angle is 60 degrees?
asked by may 
inf 103
Which input/output devices will you be using in the next one to three years as "computing" devices?
asked by meshelle 
physics
how many cubic centimeters are in a block of brass weighing 34 grams?
asked by izzy 
8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
asked by Stephen 
Math
Using the binomial theorem, Find the first three terms in the expansion of (x(1/x))^5. My solution: C(5,0)x5 + C(5,1)(x4)(1/x) + C(5,2)(x3)(1/x)2 x5 + (5)(x4)(1/x) + 10(x3)(1/x)2 x5 + (5x4/x) + 10(x3)(1/x2) x5 + (5x3) + 10(x) x5 5x3 + 10x The first
asked by Ed 
Math
A company's cost of doing business in a recent month was $18,000. Their revenue on sales for that month was $27,000. What percent profit as a percentage of sales did the company earn?
asked by ruth 
trigonometry
this is exactly how the question is written and i tried to solve it but i just couldn't. Can u please show me how the work was done I don't want just the answer. using the exact values,find the value of: 12 sin 30degrees  6 tan of 45 degress + sec 45
asked by alex 
Chemistry
chemistry question. How many grams of silver sulfide can be produced by heating 45 grams of silver excess sulfer?
asked by Colin 
science
calculate the distance an object travels if its speed is 60km/h and it travels for 6h
asked by fg 
math
a mechanical toy on a circular track goes foward 3in. then back 2in. how many moves does the toy take to complete one 15in. revolution? i got 15 moves but i just want to make sure i did it right.
asked by kaykay 
Algebra II
x^45x^316x^2+23x3 divided by x^2+2x3
asked by Dajah 
Social Studies
Where was the first civilization? What was the region called then and now?
asked by Hal 
English
Can you please check these sentences,too? Thank you. 1)The men (or men) had the function of linking (also to link?) all creation. She was married to her people. 2)In contrast/on the contrary, the Spanish ships were slower. Chaucer suspends judgement on his
asked by Franco 
Math
simifly. Use the commutative associative and distributive properties. 1. 175 + 37 + 25 2. 50(11 x 2) 3. 12/(99 can someone explain to me how to do these please?
asked by Carson 
Science
If my heart beats on average 73 times, how many times does my heart beat one day if my heart beat doesnt change? Hope you can help!
asked by Mason :) 
Prove trig identity
Prove the following trigonometric identity: (sec^2x1)(csc^2x1)=1
asked by Randy 
Physics
The 636 N weight held by two cables. The lefthand cable had tension 840 N and makes an angle of θ with the wall. The righthand cable had tension 890 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the righthand cable makes
asked by Mike 
Chemistry
which phase change is endothermic ? (1)gas>solid (2)gas>liquid (3)liquid>solid (4)liquid>gas
asked by Jazmin 
western civilization 2
Which is not a feature of life shared by most Western Europeans? Answer a.social security b.access to national health services c. guaranteed employment d. low educational fees e. family benefits and services
asked by dynasty 
physics
how do you find time?
asked by jena 
com170
Can you tell me if I correct all grammar errors?There are three kids in the room. We have been married for 20 years, and are relationship is as strong as ever. I am having trouble with my car. Can you give me some advice? The diplomats are doing what they
asked by angela 
ap us history
how could secret ballots and direct primaries increase the influence of the masses in government in the late nineteenth century
asked by Anonymous 
MATH!! probability
Two cards are drawn without replacement from a deck of 52 cards. Determine P(A and B) where A : the first card is a spade B: the second card is a face card please help!!
asked by chris 
physics
A car has an acceleration of 2 m/s2, what does this tell you about the velocity of the car . Explain what is meant by an acceleration of 2 m/s2.
asked by naomi 
physics
A simple harmonic oscillator consists of a 1.1 kg block attached to a spring (k = 180 N/m). The block slides on a horizontal frictionless surface about the equilibrium point x = 0 with a total mechanical energy of 3.0 J. (a) What is the amplitude of the
asked by Anonymous 
western civilization 2
In 1973 the countries of the West faced a new economic hardship when Answer the U.S. withdrew many loans and investments from Europe. the Soviet Union placed an embargo on trade with western Europe. the Japanese GNP surpassed that of Europe. oilexporting
asked by dynasty 
Calculus
How can I find the derivative of y = [ln(x+4)^3]^2 ?
asked by Al 
Math
what are 3 equivalent fractions to 5/11?
asked by baseballfan 
western civilization 2
Representatives of postmodernism in the arts and scholarship share the tendency to Answer reject the formal rules of their discipline and looking for hidden meanings and subtle messages. embrace an aesthetic of simplicity and directness. assert that the
asked by dynasty 
math
i am a mixed decimal number. the sum of my whole number is equal to the sum of my decimal number. my tenths is half of my hundredths and my ones is twice my tenths. if all my digits are even and my hundredths is 8, what number am i.
asked by mikah 
Math
Which of the following is a solution of the equation 5x + 4 = 14? A. 2 B. 2 C.3 D.1
asked by AbbyLovesMath 
math
there six coins. each coin has a different value. how much is the total value of the coins
asked by mikah 
algebra
function f(x)=2x^23x f(0)= f(1)= f(2)=
asked by ann 
Algebra 2
One of the the zeros of the functions F(x)= x^4+2x^313x^238x24 is x=3, find the other zeros of the function.
asked by sue 
chemistry
In one mole of the compound nitrogen diox ide, what fraction of the total number of ions is the nitrogen ion?
asked by Bob 
Physics 30
A radioactive isotope(h=4.5days) was prepared. This isotope was used 14 days later when it had an activity of 6000000 Bq. What was the activity of this isotope when initially prepared?
asked by Stewart 
ENGLISH
Second, write five sentences in which you address changes in your writing
asked by MATHA DION 
Math
What is greater $5.00 or the total value of all combinations of three coins you can make using only pennies, nickels,dimes,and quarters?
asked by Jay 
math
The tooal amount of interest on a loan of 6,000 for 150 days is 210.50.using the ordinary interest(360 days)method,what is the rate of interest on the loan.Round off answer to the nearest hundredth. I think it is 8.42% Darrell owns a consulting business
asked by jon 
chemistry
if you react magnesium solution and lead powder together is there a temperature change?
asked by Beth 
Advanced Physics
one kilogram is poured into a cylandrical vase and fills it to a depth of 8 cm. find the cross section of the cylander. how do i do this?
asked by i need help please 
Physics
The 636 N weight held by two cables. The lefthand cable had tension 840 N and makes an angle of θ with the wall. The righthand cable had tension 890 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the righthand cable makes
asked by Mike 
Math
A student takes in 2,300 calories and burns 2,500 calories. Find the net calories.
asked by Help please 
Algebra
a nickle is approximately 20mm in diameter and a quarter is about 25 mm in diameter. if the nickle is enlarges to a diameter of 128mm, what would be the diameter of the quarter using the same scale?
asked by Tate 
Math
Simifly the expression (3y + 2x)(2) + y +(x)
asked by Help please 
8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
asked by Stephen 
writing
• Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. • Use at least five different pronouns, adverbs, and adjectives in your
asked by Anonymous 
MATH 12
two cards are drawn without replacement from a shuffled deck of 52 cards. determine the probability of each event: a) the first card is a heart and the second is the queen of hearts b) the first card is the queen of hearts and the second is a heart
asked by tina 
chemistry
what would be a diagram that we can use to idenitify an unknown substance using electrochemical data. we have a reduction table and ksp values and we also that the substance is either bromine or iodine
asked by chemistry 
Science
which is not a from of energy ? light temperature electricity heat
asked by Miley 
physics
A cat climbs 20 m directly up a tree. What is the horizontal component of the cat’s displacement? Answer in units of m.
asked by jena 
physics
if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood
asked by izzy 
western civilization
Since the 1950s the countries of Western Europe have seen Answer heavy industry come to dominate the economy. immigrant laborers leaving in large numbers because of few job opportunities. people from countries in the European Union able to access bank
asked by dynasty 
7th grade science
OK so i have to do a project on duchenne muscular dystrophy and I need one page notes about them...so can someone please just give me a couple of quick notes on it? thank you!
asked by SkaterGirl 
physics
A car has an acceleration of 2 m/s2, what does this tell you about the volocity of the car .
asked by naomi 
algebra
On three consecutive passes a football team gains 9 yards, loses 10, and gains 16 yards, what number represents the total net yardage?
asked by olivia 
Medical Information Management and office practice
At Allendale Psychiatric Hospital, the hospital census on January 4 is 110. According to the following data, what's the hospital census for January 5? Admissions 10 Discharges 2 A & D A. 99 B. 100 C. 108 D. 118 What is the correct answer?
asked by jules 
business
why is it necessary for a good leader to be a good manager and vice versa?
asked by nana 
homework help!
Would you kindly help my 3rd grader child with the below question Two ways that Ancient Greece & Egypt are alike and or different? Thanks!
asked by Cindy 
math
There is a square with each of it’s side is of 2m. An octagonal is cutof from this square by cutting it’s edge such that the octagonal has all it’s sides equal. Find out the length of each side of the octagonal
asked by soumya 
physics
A 95 N block rests on a table. The sus pended mass has a weight of 22 N. What frictional force is required to keep the blocks from moving? Answer in units of N.
asked by help ! 
math
Billy has a bag of candy that contains 13 red pieces, 9 green pieces, 3 yellow pieces, and 7 orange pieces. If Billy reaches into the bag without looking, what color is he least likely to get?
asked by Bruce 
8th Grade Chemestry
Helping my child study. Are there any online guides that can help me teach how to predict the products of a reaction. i.e. _ Ag(NO3)+ _ CaCl2 yields Really want to be able to teach my child how to do this rather than have the answer. Thanks
asked by Stephen 
Physics 30
The activity of a sample of a radioactive isotope is 1800Bq. If this isotope has a halflife of 16 days, what is the activity after 16 days?, 24 days?, and 60 days?
asked by Matthew 
Algebra II
Find all real number soultions. x^39x^2+27x27
asked by Anonymous 
federal tax
Compute Marie's taxable income for 2008, assuming she is single and claims two dependent children. Her adjusted gross income is $70,000 and she has itemized deductions of $9,000.
asked by mira 
criminal justice
Name some ethical dilemas that prosecutors have to face
asked by Sammy 
English
Thank you very much for helping me. Here are some more sentences on the same subjects. 1)An electrician is someone who plans electrical equipments (systems, appliances??). 2) A nurse is someone who takes care of sick people. 3) A teacher is someone who
asked by Franco 
math
Mr.kale received 4000 votes,Mrs. Chalker received 6000 votes,and Mr.rains received 1/3 of the votes. What was the total number of votes casted
asked by jorge 
Human Physiology
What would be the effect of low blood protein levels on the colloidal pressure?
asked by Elise 
english
Why did yun ok come to the mountain hermit?
asked by Interactions in english(jkbose ) 
Human Physiology
How do low plasma protein levels produce edema?
asked by Elise 
Algebra
A moving company charged $84 plus $50 an hour to move households across town. Another moving company charges $60 an hour for crosstown moves. For what lengths of time is the second moving company more expensive?
asked by Jay 
English
I was to write 2 paragraphs on how interest rates affect our purchasing decisions and underline the topic sentence of each one. I would like to know if my prargraphs are okay and if I chose the TS correctly. Since I don't know how to underline here the
asked by Karen 
english
What does my paper suppose to look like when I put my references in APA format
asked by porshae 
math
What type of math is this? 25% of what is 30? and solve for a: ab=b=3ad
asked by Alex 
math
Susan has 50 ft. of fencing in her backyard. What is the largest area garden Susan can create, show the gardens dimensions and explain how you know its the largest area
asked by kaykay 
physical education
there are three types of components of body type (somatotype). give the three components in the correct order
asked by Anonymous 
chemistry
if 150g of Ca(OH)2 is reacted with excess H2, how much energy will be needed?
asked by Vilika 
Comprehensive science ADV
Enviromental problems, Endangered animals are becoming endangered one of the ecamples are the panamian godlen frog. which lives in the habitat of high elevation and rainfroests near fresh water streams. What is being done to control freshwater pollution?
asked by Enviromental Problems 
business
why is it necessary for a good leader to be a good manager and vice versa?
asked by nana 
math
I am a threedigit decimal number.My thousandths is twice my tenths.What number am I?
asked by mikah 
Psychology
Can you translate this question? I do not understand what they are asking. Thank you! In what sense is the dream a reflection of Franco's level of cognitive development?
asked by Anonymous 
Algebra 1
solve f(x)=3x+2 for x.
asked by Lauren 
Math
Least to greatest 3, 4, 2
asked by Help please 
math
describe the relationships that can be formed from different ratios of similar figures.
asked by meg 
math
s=1/2(ab)x find b
asked by vivian 
Chemistry
Melted potassium chloride conducts an electric current. explain.
asked by Willoby 
physics
A girl delivering newspapers travels 2 blocks west, 10 blocks north, then 4 blocks east. What is the magnitude of her resultant dis placement? Answer in units of blocks. 077 (part 2 of 3) 10.0 points Find the direction (measured from due east, with
asked by jena 
HIstory
How did it affect the Guarani Indians when they were first encountered the conquistadors?
asked by Christina 
English
I forgot to include the very last sentences. Thank you. 1) You have to be yourself and don’t change to be accepted in a group. If they’re your friends, they’ll accept you for who you are. 2)The character is a person represented (?) or presented in a
asked by Franco 
science
what surface feature characterize the fault line? what does the question mean? and also, i need to find articles on it need those that end in gov,org ,or edu
asked by hfijskdhk 
U.S.History
Why was the Virginia Colony successful?
asked by Allison 
Geometry
Given line XY, how many points on the line are exactly 3 inches away from point X? Explain
asked by Teaera 
Economics
Explain the entities affected by industrial regulation in terms of market structure.
asked by Melinda 
english communication
which of the following has a hyphen thst's used correctly?
asked by Anonymous 
Science
Who first discovered color blindness? Could you give me a little bit of background info too please?
asked by Mary Kate 
business
.How should the leader deal with the situation?
asked by ahmede 
Math
of the 43 presidents 15 were elected to 2 terms. what fraction of us presidents were elected two terms? HELP! I have been at this one for over two hours and I can't come up with the answer.
asked by Allie 
Chemistry
How do you find the molar mass of HBr?
asked by Mariana 
physics
density= mass/volume=150kg/(30*20*500) in kg/cm^3 what is kg/cm^3 and can you explain how to use this please
asked by izzy 
math
To which sets of numbers does the square root of 31 belog too
asked by lisa 
business
he leader of your client organization has observed a lack of flexibility and a slow decisionmaking process in many of the departments. He believes that he is not serving his customers well, and has decided to move to a team environment and to push many of
asked by hamed 
math
when a standard distribution plot is skewed right, where are the mean and median found?
asked by ron jon 
Physics
A ball rolls off a 3.5 m high box with a velocity of 4m/s. How long does it take to reach the floor and how far from the box does it land?
asked by Mary 
Math
the product (3)(5)(8)(15) is: A.Positive B. Negative C. Zero D.Not here
asked by Taylor 
English
Can you please check these sentences for me, please? I included the doubts in parentheses. 1)I live in a town, in southwestern (in southwest also possible) Piedmont, called Rodda. It’s about 250 metres above sea level. 2)I’ve lived there (or here?)
asked by Franco 
algebra 2
What is the third–degree polynomial function such that f(0) = –18 and whose zeros are 1, 2, and 3
asked by daniella 
Physics
1.What is the acceleration of a projectile when instantaneous vertical velocity is zero at the top of its trajectory?
asked by Nico 
accounting
What potential problems can arise if a company incorrectly classifies costs? Example, what if an inventoriable cost is classified as a period cost?
asked by chris 
english
my teacher want us to write a 5 page report/essay on what we want to be when grow up, i said a police but don't have 5 pages of the information how do i write a 5 page report on the police career?
asked by malik 
algebra
can you tell me what is the radius for 9in for a circle
asked by Anonymous 
math
4 2/5  2 1/2 = P + 3/10
asked by jeff 
space
How many socks would it take to fill the space shuttle
asked by Zoe 
business
Are men better leaders than women?Explain your position with research based views and scholastic sources
asked by kaled 
physics
how could i find the mass of a liter of alcohol
asked by izzy 
Chemistry
How to find the marked volume in graduated cylinder?
asked by Andrew 
physics
A freight train has a mass of 3.2 × 107 kg. If the locomotive can exert a constant pull of 7.1 × 105 N, how long would it take to increase the speed of the train from rest to 74.6 km/h? (Disregard friction.)
asked by jena 
business
Are men better leaders than women?Explain your position with research based views and scholastic sources
asked by nana 
Math
Could someone tell me if I am correct on this question? Laurie expects to make 100,000 in 2007.Her Social Security tax rate is 6.20% up to the wage base.Medicare is 1.45%.How much FICA is Laurie excepted to pay for the year? $7,495.00 for my answer
asked by Bonnie 
English
I forgot to include these other sentences. I just would like to know if all the shops are possible. Thank you. 1))A: You sound angry. It’s nothing. (That’s nothing is possible? But not: there is nothing important.) 2) Someone (and not: Nobody) told me
asked by Franco 
English
Can you say: "How long is it since you have known Peter?" Isn't since always followed by the past simple? Thank you for your cooperation. I corrected the alternative: "How long have you known him for?"
asked by Franco 
Biology
how does the external environment of an organism can affect gene function.
asked by Needs Help 
social studies
What are the failures of the UN organization World meteoroligcal organization(WMO)
asked by sara 
early childhood education
Give an example of putting DAP into practice.
asked by porshae 
physics
if the length of a pendulum is 0.8m what is the period if the angular deflection is 30 degrees?
asked by matt 
English
I have three very last sentences I'd like you to check. Thank you. 1)You limited yourself to reporting what was on the photocopy without revising (rewording) any single sentence. Furthermore, instead of joining your ideas (with)using appropriate linkers
asked by Franco 
alg2
Describe the end behavior for the graph of y= 12x^6 + 4x^4  x^3 + 6x +1
asked by morgen 
Geology
Why is pattern recognition with respect to earthquakes so important?
asked by Zukii 
English
I read a text about a girl/boy comparing the choise of a career/job with a jigsaw puzzle. My teacher asked me to tell who this person is and were this person is going? I have trouble with were this person is going. I have to do one paragraph !! Please help
asked by Please HELP ITS DUE TOMORROW !! 
language arts
i have been looking EVERYWHERE for a correct definition of the words retaliatory and immune... please help!!!!
asked by Bri 
Math
Selena received a $42 commission for selling a computer for $1400. What percent is her commission?
asked by ruth 
human life
What does "Identify your values" mean?
asked by Ryleigh 
early childhood education
List the five guidelines of DAP as set forth in DAP curriculum?
asked by porshae 
Math
Tomas put $180 in an account earning simple interest. At the end of one year, the account had $186.30 in it. Assuming no additional deposits or withdrawals, what was the interest rate being paid?
asked by Olivia 
math
The seventh book in the harry potter series has 759 pages. How many 2s were used when typing the page numbers?
asked by kaykay 
Science
Explain the basis of judgment you believe should be used for addressing the moral questions or dilemmas surrounding the issue of coal use. What exactly is this question asking of me? Not sure what to do.
asked by Anonymous 
english
what is the subject and veb in this sentence? a rumor has been spreading about the possible closing of the plant.
asked by nancy 
math analysis
how do i do cosecant x= 30/150? and how do i do cosecant x= 1500/9000
asked by paige 
Algebra
The representative tells you that floor plan #1 sells for $175,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $7,200,000. Write an equation that illustrates this situation. Use the same
asked by Cathy 
7th Grade
Z+5/7=3 home work problem that was not taught in class?
asked by Carole 
reading
i have a report on william clark due it 2days i need help. FAST!
asked by spencer 
probability and statistics
when a standard distribution plot is skewed right, where are the mean and median found?
asked by ron jon 
math
Susan has 50ft of fencing to use to build a garden in her backyard. A: The shape must be a rectangle/square. B: Sketch at least five different examples that Susan could use for her backyard and state what the perimeter of each one is. C: The most important
asked by Evelyn 
English
I forgot to include these few last sentences. Thank you. 1) Chaucer projected (?? planned) to write 120 tales. 2) The characters almost come from the same social class because the nobles wouldn't travel (better: wouldn' have agreed to travel with
asked by Franco 
eth125
what are some changes the uniteds states has made to policies concerning the treatment of muslim and arabic membersof society?
asked by maxine