Questions Asked on
October 19, 2010

probability
icrobes in a certain colony exposed to radiation have a 1/6 chance of being mutated. a. If ten microbes from the colony are sampled, what is the probability that at most 4 will be mutated? b. If microbe from the colony is examined one by one, what is the
asked by lisa 
College Chemistry
What is the wavelength(in meters) of a proton(mass=1.673x10^24g) that has been accelera ted to 25% of the speed of light?
asked by Whitney 
chemistry
what is the osmolarity of a .20 M solution of Na3PO4?
asked by Dana 
Trig
Solve for 0
asked by mickey 
CHEMISTRY
suppose a 1m(power3) sample of air at sealevel pressure, containing 4 g of water vapor, was cooled and condensation occurred. how many calories of heat would be released by this process?
asked by TC 
Math
How is total revenue change from budget calculated. I take the actual number with the budget number and add or subtract them together and divide by the budget number? I'm lost can you help please?
asked by MaryAnn 
physics
An airplane with a speed of 13 m/s is climbing upward at an angle of 48° counterclockwise from the positive x axis. When the plane's altitude is 720 m the pilot releases a package. (a) Calculate the distance along the ground, measured from a point
asked by Anonymous 
Physics
A soccer player kicks a ball into the air at an angle of 36 degrees above the horizontal with a speed of 30m/s a.How long is the soccer ball in the air? b. What is the horizontal distance traveled by the ball? c. What is the maximum height reached by the
asked by Mallori 
physics
On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.9 times as far as he would have on earth, given the same velocities on both planets. The ball is launched at a speed of 54 m/s at an angle of 42° above
asked by Anonymous 
algebra
the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 36 inches. find the length and width?
asked by john 
Chemistry
Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles
asked by AkhedTo DrBob222 
Chem
What is the relationship between the ionization energy of the monoanion such as CL and the electron affinity of the neutral atom?
asked by Whitney 
chemistry
a mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the partial pressure of O2 if the total pressure is 1.3 atm?
asked by Sammy 
chemistry
if 125 ml of H2O is added to 50 ml of 0.35 M NaCl, what is the molarity of the resulting solution?
asked by Dana 
Chemistry
Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50ml of water from room temperature 20C to 45C? Remember heat loss during the dissolution is equal to the heat capacity of water. this value is 4.184. you assume
asked by Sarah 
math
what is the average speed if it takes 0.5 hours to jog 4,000 miles ?
asked by tedeja 
Physics
A box slides down a 36° ramp with an acceleration of 1.05 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.
asked by Diana 
math
Obtain the Taylor series in powers of x + 1 for f(x) = x/(2 + x), giving the general term and the interval of convergence.
asked by Mark 
Physics
A block with a mass 4.0 kg is held in equilibrium on an incline of angle θ = 42° by a horizontal force F. a)Find the magnitude of the normal force. b) Find the magnitude of F. (Ignore friction.)
asked by Diana 
Physics
A 2.90 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 2.23 m in 1.90 s. a) Find the magnitude of the acceleration of the block. (b) Find the coefficient of kinetic friction between the block and
asked by Diana 
algebra
(3^x)^2/(27^x2)=1
asked by sarah 
Health
Description of the Epilepsy emergency.
asked by Jean 
precalc
(4^x2)^2 mulipled by 1/(4^5x)=64
asked by sarah 
stastics correlation and regression
for the table that follows: answer the following questions: x y 1 1/4 2 1/2 3 3/4 4 ? * would the correlation between x and y in the table show above be positive or negative? i think that it would be negative, i am not sure that is correct? * find the
asked by maryplease help figure out this problem. 
chemistry
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100°C in boiling water and then dropped the hot coin into 29.5 g of water at T = 15.0°C in an insulated
asked by jake 
physics
A car starts from rest on a curve with a radius of 190m and accelerates at 0.600m/s^2 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.50m/s^2 ?
asked by Kamini 
English
Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. · Use at least five different pronouns in your sentences. Please let me know if I have done this correctly. While away at
asked by Rene 
Physics
From the top of a tower is an object with mass 25 kg which is lowered with ropes at a constant speed, 4 m / s to the ground. After 10 seconds the rope by which an object falls freely. From the moment there are 12 seconds to those standing on top of the
asked by Oddbjørn 
physics
Two cars are traveling at the same constant speed v. Car A is moving along a straight section of the road, while B is rounding a circular turn. Which statement is true about the acceleration of the cars? a.) acceleration of both cars is zero b.) car A is
asked by jo 
physics
find the ratio of the intensities of two sounds if one is 8 dB louder than the other
asked by kabelo 
CALCULUS
Find the relative extrema of function. f(x,y)=x2+3xy+y210x20y+12
asked by AYA 
physics
two cars are heading at each other with the same speed v. The horn of one (f=3000Hz) is blowing,and is heard to have a frequency of 3400Hz by the people in the other car.Find v if the speed of sound is 344m/s
asked by kabelo 
physics
A ball is project from the building of height 250m, at angle 45degree below the horizontal with a speed of 25m/s. i) how long does the ball remain in the air? ii) find the magnitude and direction of the velocity of the ball just before it strikes the
asked by sam 
english
List the nouns in the following sentence. Next to each noun  label whether it is concrete or abstract by writing a "C" or an "A." Sentence: In the midst of the excitement, Samuel lost his pencil on the bus. This is what I believe to be correct:
asked by Jason 
Physics
a bicycle turned upside down whiles owner repairs a flat tire. A friend spins the other wheel, of radius R, and observed that drops of water fly off tangentially. She measures the height reached by drops vertically. A drop that breaks loose from the tire
asked by Anonymous 
english
In the answer area below, write the 2 adverbs in this sentence and explain how each adverb is used. Example: Eventually, she walked proudly. Answer: eventually  eventually tells when she walked ; proudly  proudly tells how she walked Sentence: She walked
asked by Jason 
managerial economics
firms demand function,p=240.54q and the average cost function,AC=Q28Q+36+3/Q,calculate the level of output Q, which maximize total revenue,maximizes profits
asked by kala 
physics
A vibrating stretched string has length 31 cm, mass 19 grams and is under a tension of 38 newtons. What is the frequency of its 3rd harmonic? If the source of the wave is an open organ pipe of the same length as the wire, what would be the frequency of the
asked by sandhu 
math
what is 9t 435kg in decimal form
asked by anonymous 
managerial economoics
close relationship between mnagement and economics has led to the development of managerial economics
asked by kala 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air
asked by emily 
English literature
summary of The king is dead long live the king by Mary E. Coleridge
asked by Anonymous 
11th grade
a meter stick of wight 0.8 n is pivoted at 40 cm mark at which mark 1n load should be located to balence the sticke
asked by Ammar Hafez 
chemistry
The first step in the Ostwald process for making nitric acid is the formation of NO as follows; 4HN3 + 5O2 makes 4NO + 6 H2O. According to the equation, 5 moles of NH3 will react stoichiometrically with blank moles of O2 to form blank moles of NO. I can't
asked by lavonne 
sociology
hi, i have just seen 4 new terms in sociology,chapter family..and i don't know what is it? the terms are, ideological state apparatus, domestic labourmatrifocal and matrilineal..i don't what is it.. i hve just seen these terms as exam question by
asked by Pallavi 
Research and Evaluation
I know what primary and secondary data collections are, but why must secondary data collection be conducted early in a project and the primary data collection be done later in the project?
asked by Mom of 8 
Physical Science
A copper bowl and a silver bowl of equal mass were heated from 27 C to 100 C. Which required more heat? Expain. (C copper = 380 j/kg C; C silver =235 j/kg C
asked by Laura 
5th grade
What do you mean by "Time is Gold" and " Lost Time cannot come back anymore"?
asked by Chelsea 
Algebra
Could you please check my answers and help with the ones I can't figure out 1. Solution to the radical function sqrt(12x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2  8x = 0 x(x8) = 0 x
asked by JayLynnePlease check 
Physics
A 56 cm diameter wheel accelerates uniformly about its center from 130 rpm to 400 rpm in 3.2 s. (a) Determine its angular acceleration. Express your answer using two significant figures. (b) Determine the radial component of the linear acceleration of a
asked by Tommy 
physics
A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.7 cm and accelerates at the rate of 6.9 rad/s^2, and it is in contact with the pottery wheel (radius
asked by Lacey 
medical
Why is it important to maintain a log of requests for release of information
asked by Amy 
8th grade
write an equation for a line that is parallel to y=2x+4 but passes through (0,0)
asked by myriah 
Geometry
Find the measure of each side of isosceles triangle ABC with AB = BC if AB = 4y , BC = 3y + 2 , and AC = 3y.
asked by Rhonda 
mathsdefinite integral
evaluate the following expression at z=5 d/dz ¡Ò[z to 2] (3+x^2)dx
asked by May 
mathsintegral
the time index t runs from a to A. if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per year and the interest rate is 6% per year continuously compounded. what is the present value? what is the integral function?
asked by May 
Calculus 1
find the area of the largest posible isosceles triangle with 2 sides equal to 6. thanks
asked by Oswaldo 
Grade 11 physics
After reaching its highest point the blue ninja rocket's chute opens. If the rocket falls at a constant speed of 1.5 m/s. From the height of 300m in a cross wind of 4 m/s. How far down wind does the rocket travel from the launch pad?
asked by Erin 
Calculus
A SHEET OF CARDBOARD 180 INCHES SQUARE IS USED to make an open box by cutting squares of equal size from the corners and folding up the sides, what size squares should be cut to obtain a box with the largest possible volume?
asked by Oswaldo 
college
find domain of f(x)=3/x+5 + 2radical x1
asked by taylor 
english
Every paragraph in a critique should _____. a)focus on an aspect of the theme b)mention the protagonist c)be centered around one main idea
asked by danny g 
english
what is a "figure of speech"?
asked by danny g 
Physics
Two ice skaters, with masses of 30kg & 85 kg are at the center of a 30m diameter circular rink. The skaters push off against each other & glide to opposite edges of the rink. If the heavier skater reaches the edge in 40s, how long does the lighter skater
asked by Rene 
language arts
i have to use the word fretish in a sentence as a noun, verb, and an adjective and as a different part of speech each time. i've looked everywhere and i cant even find what fretish means. PLEASE HELP!!!
asked by Sage 
englsih
is this right? "It is essantial that a conflict be included in a story"
asked by danny g 
algebra
what is the average height of a softball that is pitched to a batter from 45 feet away?
asked by DJ 
calculus
: A 20m ladder is placed against a wall. The bottom of the ladder is slipping at the rate of 2m/sec. How fast is the top of the ladder sliding down the wall when the bottom of the ladder is 12m from the wall
asked by awesome 
calculus
Q#1: From a point of O, two cars leave at the same time. One car travels west and after ‘t’ sec, its position is x=t2+t ft. the other car travels north and it covers y= t2+3t ft in ‘t’ sec. At what rate is the distance between the two cars changing
asked by awesome 
english
A)"Whoa there, buddy," Leticia cautioned. "Let's not jump to any conclusions." B)"Whoa there, buddy," Leticia cautioned, "Let's not jump to any conclusions." C)"Whoa there, buddy." Leticia cautioned. "Let's not jump to any conclusions." D)"Whoa there,
asked by danny g 
AlgebraPlease check my calculations
Could you please check my answers and help with the ones I can't figure out 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2  8x = 0 x(x8) = 0 x
asked by JayLynneI had misprint in previous posting 
IPC
What is the change of phase from a solid to a gas? I know, liquid to gas is evaporation. So what if it skips the liquid part? Help?
asked by Kaitlin 
11th grade english
A)When she told him those socks are interesting she meant the socks looked ridiculous. B)When she told him "Those socks are interesting" she meant the socks looked ridiculous. C)When she told him, "Those socks are interesting," she meant the "socks looked
asked by danny g 
sociology
I am writing an essay on the socialogical perspectives on the issue of unemployment. The symbolic interactism and function analysis. I went on the web and research the issue of unemployment and the meaning of the perspectives, yet I am stumped on how to
asked by Linda 
corporate finance
If the rate of inflation is 5%, what nominal interest rate is necessary for you to earn a 3% real interest rate on your investment?
asked by rob 
chemistry
2. Predict the approximate amount of heat liberated by burning a gram of candle wax and a gram of propyl alcohol (Note: candle wax is a mixture of saturated carbon compounds with 20 or more carbons in each molecule and no oxygen. Propyl alcohol has the
asked by vanessa 
economics
why might an economist look at hundreds of cars moving along an assembly line and call it an example of scarcity
asked by ben 
calculus
A 24ft high conical water tank has its vertex on the ground and radius of the base is 10 ft. If water flows into the tank at a rate of 20 ft3/min, how fast is the depth of water increasing when the depth of the water is 20 ft?
asked by daani 
Chem
Could you please tell me if these are right? How many moles are in the following. A.) 80.0 g of NaOH I got 2.0 moles. B.) 12.0 g of Ca(OH)2 I got 0.16 moles. Write the simplest formula for each of the following compounds. A.) 0.200 mole Al and 0.600 Cl. I
asked by Chris 
Chemistry
Can you tell me if these are right please? When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g. What is the simplest formula of the copper oxide. I got Cu2O (copper (I) oxide). Aluminum and oxygen gas react to produce
asked by Jason 
math
what is 1/5 of $25,000.00?? PLEASE HELP!!
asked by chrissty 
Chemistry
I need someone to check these True or False questions for me please: 3. Dissolving salt in water is a physical change F 14. Burning newspaper is a physical change F 19. The liter is a measure of volume T 20. The amount of heat and temperature of a
asked by mysterychicken 
Physical Science
A 1.0 kg glass bowl at 37 °C is placed in a freezer. How much heat will the freezer have to remove from the bowl to take it to 0 °C? (cglass = 0.2 cal/deggm)
asked by Bob 
maths
karen decorated her mother's birthday cake. onethird of candles are pink, threeeights are yellow, onequater are blue and the two remaining candles are white. calculate (a). the fraction of candles that are white. (b). the total number of candles on the
asked by tia 
Algebra
When I asked you about the following problem:Solve 4sqrt(6x2)>4 The first 4 is outside the square root sign and then (6x2) is under the square root sign >4. You said to do the following. Divide by 4 to get sqrt(6x2)>1 For this to happen, 6x2>1 or
asked by JayLynneMathmate please recheck 
maths
solve the following pair of simultaneous equations. 2x3y=13 3x+y=3
asked by tia 
science
Mars is 48 million miles from earth. If a spaceship leaves Earth traveling toward Mars at 6 million miles per hour (m.p.h.). How long will it take the spaceship to arrive on Mars.
asked by joscelyn 
vector proofs math 536
if the diagonals of quadrilateral ABCD intersect at their midpoints, then the quadrilateral is a parallelogram. Prove that AM MC  =  MB MD Ive tried figuring out this question for a while now and I cant figure it out.
asked by dave 
US History
29. The Greenback party and Farmers' Alliances both called for a. putting more money into circulation b. opening American markets to foreign crops c. cutting back on protests d. repealing the Sherman Silver Purchase Act I can't seem to find the answer for
asked by mysterychicken 
chemistry
A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air
asked by emily 
math
the diagram below represents a drinking glass of diameter 10cm. it is partially filled to a height of hcm with apple juice. (a) using 3.14 give an expression in term of h for the volume of juice. the actual volume of the juice is 0.471 litres. (b)
asked by tia 
maths
two cyclists go around a race track repeatedly. the first cyclist takes 105 seconds to complete a circuit. the other cyclist takes 75 seconds. they begin together at the starting line. calculate the length of time, in minutes and seconds that would have
asked by tia 
maths
for he formula A=P+Prt, find the value of (a). (i) A when P = 750. r=0.09 and t=8 (ii) P when A=720.r=0.12 and t=5 (b) make t the subject of the formula
asked by tia 
math11
I have several questions similar to this one and was wondering if you could walk me through this one. I'm totally lost on how to do it. Paramecia reproduce by splitting in two. In a laboratory flask, a colony of paramecia had an initial population of 500.
asked by Maddy 
alegrba 2
R(p)=2.5p^2+600p
asked by william 
chemistry
What data would you need to evaluate the claim that a certain product neutralizes 47 times its weight in excess stomach acidity?
asked by Emma 
math
2 ships sail from the same por, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours? could you show the how you set this problem up?
asked by Greg 
grammar
what would be a good thesis for a Jay Z paper?
asked by Melanie 
O Chem
I need help with this question please. Draw the structure of triacylglycerol formed from oleic acid, linoleic acid, and stearic acid. Give balanced equation and show how much hydrogen would be needed to reduce the triacylglycerol completely, show the
asked by David 
math
Show how to find the quotient 18 divided by (6) by using the following: a) the idea of division as finding a missing factor. b) the procedures for integer division.
asked by m 
accounting
GRANT CLINIC, INC. Financial Plan and Presentation Grant Clinic, Inc. serves a suburban community with a population of about 24,000, of which 25% are expected to become patients of the clinic. Approximately 6 miles from Grant Clinic, Inc., a new
asked by Andria 
medical coding and billing
help with these six exam 00816,038150,038152,028004,028008 and 028006 my life depends on this
asked by peches 
Chemistry
Need help with this 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a meter Column II: a. grams b. grams/cm^3 c. Kelvin d.
asked by mysterychicken 
Astronomy
How would I compare the orbital period of two stars knowing their distance apart in AU and their solar masses?
asked by Dre 
physics
A toy sled with a mass of 1.0 kg is sliding down a ramp that makes an angle of 25° with the ground. The coefficient of kinetic friction between the toy sled and the ramp is 0.25. 4. In a coordinate system where the xaxis is parallel to the ramp and the
asked by Jeremy 
math
Jane's aquarium contains goldfish, turtles, and snails. There are 16 legs, 10 shells, and 36 eyes in the aquarium. How many creatures of each type are in the aquarium? (Hint: Snails have two eyes, one shell, and one leg.)
asked by alyse 
math
If you exchange 300 USD for Euro's how many Euro's would you have?
asked by carolyn 
math
If Sam wants to make concrete blocks that are 24 inches by 24 inches by 4 inches thick. How man blocks can he make from 1 cubic yard of concrete
asked by carolyn 
Chemistry
A solution is labeled as ~8M NaOH. How many mL of this solution would be needed to prepare 750mL of a ~0.2M NaOH solution?
asked by Katie 
Calc
y= cot^2(sin(theta)) find dy/dx For some reason i can never get these right! I hope someone that is on can help me with this
asked by MATH HELP! 
calculus optimization max min
find the dimensions of the rectangular area of maximum area which can be laid out within a triangle of base 12 and altitude 4 if one side of the rectangle lies on the base of the triangle thanks
asked by Oswaldo 
5 th grade
The sum of my ones digit and tens digit is 10. My tens is greater than my ones digit. I am a prime number. What number am I?
asked by Cade Pruitt 
math
I'm a fraction playing card. My demominator is 4 times my numerator. Add my numerator and denominator and you get 15. Who am I?
asked by Anonymous 
Math
How would you solve 23=1d? I don't even think there would be an answer to this.. can someone explain to me how to solve this? Thank you!
asked by Allyson 
calculus
find the limit of f'(x) = 1/(√x) using the limit definition of derivative.
asked by John 
Math
show the make a ten fact you used with sum?
asked by Frankie 
Calc
y= cube root (1+tan(t)) OR y= (1+tan(t))^(1/3) The answer I got was y'= (1/3)(1+tan(t))^(2/3)*(sec^2(t)) Is this correct?
asked by Checking answer 
math
round off to nearest 10th do i change the number in tenth position
asked by dollie 
physics
An object is dropped onto the moon (gm = 5 ft/sec2). How long does it take to fall from an elevation of 250 ft.?
asked by shaun 
Chemistry
Can someone please help me with these: 3. Dissolving salt in water is a physical change False? 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of
asked by mysterychicken 
Algebra story problem, check please?
Dan purchases dvd's from a website, each dvd costs 11 dollars, and the shipping and handling fee is 6.95, dan is charged a total of 50.95, how many dvds did he purchase? A) Label a variable and write an equation: 11(x)+6.95=50.95 x is the number of DVD's
asked by Allyson 
math
Give a counterexample to show that the following generalization about the set of integers is false. Closure property for division.
asked by m 
Ethics
I need lots of reasons why drug companies charge so much for drugs?
asked by Anique 
english
I have to write a thoughtful composition on the following: Gothic novels emphasize horror, mystery, and the supernatural. Write an analysis of the gothic features of the nvel Frankenstein that are evident in Chapters 1 through 8. How does she Shelley
asked by Ana 
Algebra function problem, check/help?
Set up a function for the following situation: The output of a function is 8 less than 3 times a number. B) Find the input when the output is 13? Would your equation look like: 8
asked by Allyson 
ITT
In an accidental explosion, a satellite breaks in half while in circular orbit about earth. one half is brought momentarily to rest. what is the fate of the half brought to rest? what happens to the other half?
asked by ed 
chem
i understand most of the problem but where did the 0.84 M come from? a drug was injected into your body with a 2.00 M concentration. what would be its concentration after 0.010 seconds if k = 875 ^ 1 1st order reaction! ln [ A ]t =  (875 ^ 1) (0.010
asked by JESS 
physics
A 89.0 N grocery cart is pushed 13.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?
asked by ed 
Biology
If you inherited an allele for blue eyes from your mother and an allele for brown eyes from your father, you are A) tetraploid B) homozygous C) haploid D) heterozygous I got D marked wrong, I'm so confused. Thanks.
asked by estela 
kindergarten
What is a vat?
asked by britney 
english
what is a lark?
asked by danny 
algebra, help please?
So the problem is y2=y+2 Would I subtract 2, or add the two? because i know you have to do something with the two, but I have no idea what.. Thank you!
asked by Allyson 
ap physics
A 1.20*10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.350. What should be the magnitude of P, so that the net work done by it and the kinetic
asked by Anonymous 
Algebra check/help?
So, for this one, it is 2x14=3x+6 Can someone please explain to me how they would solve this problem? I think you would add 14 to the 6, but I'm not sure..
asked by Allyson 
Algebra, check.
10z4=10z2 So I subtract 4 from the 2 right? and 10 from the ten, but then itd be 0=2 There is no soloution for this problem.. correct?
asked by Allyson 
Chemsitry
Calculate the weight of KHP that will react with 25mL of .1M NaOH
asked by Sierra 
physics
A 1.20*10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.350. What should be the magnitude of P, so that the net work done by it and the kinetic
asked by peter 
social studies
Why did the Sumerians set up governments?
asked by Danny 
chemistrycalorimetric
Develop a detailed calorimetric method for determining the temperature of the warm water sample. Materials: Hot water sample of unknown temperature, Styrofoam cups with cardboard lid and stirrer, Thermometer, Pipets and burets, balance, ice, cold water,
asked by Cerra 
physics
A skier of mass 75.0 kg is pulled up a slope by a motordriven cable. How much work is required to pull the skier 60.0 m up a 35° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
asked by ed 
Astronomy
We can calculate the kinetic energy of any moving object with a very simple formula: kinetic energy = 1/2 mv^2 ,where m is the object's mass and v is its velocity or speed. Table Energy Comparisons shows that metabolizing a candy bar releases about 10^6
asked by Isabelle 
Intro to business
the resurgence of us manufacturing firms in recent years can be credited to
asked by april 
PROBABILITY
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
asked by JHONY 
calculus
find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.
asked by Sasha 
chem ion
naming chemical compounds. I don't really get how you get the symbol from the word or the other way around for polyotomic ions so.. here are some examples that a website gave me: this is wut the site said to do:(Its confusing to me) The name of the
asked by claire 
Probability
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
asked by JHONY 
Probability
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
asked by JHONY 
calculus
show limit x to 1 (x^2)sin(1/(x1)) = 0
asked by confuzzled 
English/ Language Arts
Name the complete subject and the simple subject in the sentences. 1. The ocean view is magnificent. Complete Subject  The ocean view Simple Subject  view 2. The average winter temperature is 55 degrees F. Complete Subject  The average winter
asked by Calel Stephens 
science
What are four things that organisms compete for, to meet their needs?
asked by kyli 
physics
A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume
asked by jesse 
Algebra, help me?
1/4(8j3)=2j3 I know you distribute first, but then I don't exactly know where to go from there. Help would be appreciated. Thank you very much. Allyson
asked by Allyson 
math
when doing decimoles and multiplying them by whole numbers...for example 4.7805 multiplyed by 1000 dose the decimole go 4places over or 8places over i don't get it please help!!!
asked by christina 
physics
A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume
asked by jesse 
accounting
below the break even point, what does every dollar of contribution margin go toward? above the break even point, what does every dollar of contribution margin go toward?
asked by peaches 
science
What is something in an experiment thst can change?
asked by shelbie 
physics
A 50.0 kg gymast hangs vertically from a pair of parallel rings. If the ropes are supported so that they make an angle of 45 degrees with the ceiling, what is the tension in each rope?
asked by Katy 
accounting
The sales department thinks it could sell the product at a slightly higher price of $45/unit, but if the price is raised, it may lose 10% if sales volume in units. What would the expected profitability be if this higher selling price/unit in fact occurred.
asked by peaches 
math  Algebra
evaluate x²(xyx) for x satisying (13x6)/4 = 5x+1 and y satisfying 12y=7(y+4)+1
asked by just.fyd 
Calculus
Find the derivative of y=x(2^(4x)).
asked by jordyn 
Chemistry
The following reaction represents the decomposition of hydrogen peroxide 2H2O2 > o2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of Hydrogen peroxide, H2O2? Please walk me through this one, I need more then just
asked by Andre 
EDU310
How many U.S students graduate and advance to higher education?Are there any U.S states that fair better than other
asked by Anonymous 
physics
Heather in her Corvette accelerates at the rate of (3.40ihat 2.00jhat) m/s2, while Jill in her Jaguar accelerates at (1.00ihat + 3.40jhat) m/s2. They both start from rest at the origin of an xy coordinate system. Determine the following after 5.50 s. (a)
asked by natalie 
Chemistry
'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a meter Column II: a. grams b. grams/cm^3 c. Kelvin d. milli e. cubic meter
asked by mysterychicken 
calculus
Find the derivative of y=t^2(5t8)^4.
asked by patrick 
physics
An athlete throws a basketball upward from the ground, giving it speed 10.8 m/s at an angle of 64.0° above the horizontal. (a) What is the acceleration of the basketball at the highest point in its trajectory? (b) On its way down, the basketball hits the
asked by natalie 
accounting
Jones Company had 100 units in beginning inventory at a total cost of $10,000. The company purchased 200 units at a total cost of $26,000. At the end of the year, Jones had 80 units in ending inventory. Compute the cost of the ending inventory and the cost
asked by lamyaa 
English
In English I'm confused on how you would know where to put the lines of complication in a story map?
asked by Billie 
PROBABILITY
A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?
asked by JHONY 
Chemistry
Determine the mass of zinc sulphide, Zns which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. My answer was 9.26 grams of zinc sulphide are produced. I wanted to verify if this was right. Please let me know. Thanks.
asked by Rose 
physics
A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume
asked by jesse 
cuyamaca
Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at $9 Aug. 12 300 units at $11 May 5 500 units at $10 Dec. 8 200 units at $12 Eddings Company uses a
asked by ali 
math
I have more ones than tens. The value of me tens digit is 80. What number am I?
asked by Alexis 
Chemistry
The density of a 1.0 M solution of NaCl is 1.04 g/mol and its specific heat, c, is 3.60 J/C*g. How much heat is absorbed by 31.4 mL of this solution if the temperature rises from 18.6 C to 29.7 C?
asked by Sarah 
math
if you simplify the expression 3x+4(x2)3x into the expression 3x+ 4x 83x, what property did you use associative property commutative property distributive property identity property
asked by chris 
Physics
Another toboggan with a mass of 30 kg, is being accelerated at 40 cm/s^2 by two boys pulling ropes at an angle of 20(degrees) with the direction of travel. They are each pulling with a force of 25 N. a) what is the force of friction? b) if, after reaching
asked by Mayson 
US History
29. The Greenback party and Farmers' Alliances both called for a. putting more money into circulation b. opening American markets to foreign crops c. cutting back on protests d. repealing the Sherman Silver Purchase Act I can't seem to find the answer for
asked by mysterychicken 
Spanish
El alumno o el profesor? complete each sentence with the appropriate word. 1. En una escuela americana "A" es una nota ________ y "f" es una nota ________. 2. El profesor_________; el alumno ________ la pizarra. i think number 1 is buena & mala but im not
asked by jessica 
language
how should I use having been introduced to the guest of honor in a sentence
asked by judson 
Physics
Another toboggan with a mass of 30kg is being accelerated at 40 cm/s^2 by two boys pulling ropes at an angle of 20degrees with the direction of travel. They are each pulling with a force of 25N. a) what is the force of friction? b) if, after reaching a
asked by Mayson 
algebra
5g+4(5+3g)=1g my solve(which didn't work tried 5 times) 5g20+12g=1g 17g20=1g 18g20=1 18g=21 g=21/18=7/6 where did i go wrong?
asked by Jake 
algebra I
9n +12=6n +54 what is n and how do you get it
asked by Daniel 
Algebra
Can someone help me with this problem, plz.... 12b^8/ 3b^4=
asked by Ally 
US History
Just need this one checked real quick: 43. The U.S's most valuable export in the early 1800s was a. cotton b. slaves c. tobacco d. grain A? Thanks MC
asked by mysterychicken 
math
A landscape designer had 50 2/3 pounds of seeds that she wishes to parcel into packages of 2/3 pound each. How many packages can she make?
asked by robert 
math
what is 22/33 in simplest form or is it just that?
asked by aj 
Life...
Do i need to take precal and physics in highschool to become a nurse, dentist, or doctor?
asked by Bianca 
social studies
what do u call the people living in the Arctic? Arctician or something?
asked by faf 
US History
Hmm..I can't seem to get this one. 34. Which of the following contributed to the cattle ranching boom? a. technical advances b. falling crop prices c. expansion of the railroads d. dry farming I think it's B? Thanks MC
asked by mysterychicken 
math
At Irv's Cycle Rental Shop, Irv renst all knids of cycles: unicyles, tandem bikes, regualr bikes, and even tricycles for little kids. He parks all the cycles in front of the shop with a helmet for each rider strapped to the cycles. This morninf Irv counted
asked by Katherine 
math
if you jog 72 miles in 3.5 hours what is your average speed?
asked by tedeja 
ALgebra
find an equation of the line containing, (4,2) and parallel to the line containing (1,4) and (2,3) find an equation of the line containing (1, 3) and perpendicular to the line containing (3,5) and (2,7)
asked by jose 
englishliteraturefrankenstein
What supernatural elements does Mary Shelley include in chapters 18 of frankenstein? Include textual evidence, please.(:
asked by Ana_x00 
spanish
what does que te encatanda mas,el chocolate o la pizza mean
asked by bob 
chemistry
If 50.0 g of NaCl is mixed with 100.0 g of water at 80.0 °C, how much will not dissolve?
asked by Blue 
naming compounds
write the name of this compound:(charge) Pb(2+)Cl2 is lead(II)chloride so.. i just need to know if my answers correct. thanks:)
asked by claire 
English
Can you please check these few sentences I'm not sure of. Thank you for all. 1)My work day starts at 7.55 a.m. I nearly always have to drive my child to school. It usually takes me ten minutes to get there (OR: It's a tenminute drive.) After that I drive
asked by Franco 
chemistry
If 15.0 g of KCl is added to 100.0 g of water at 30.0 °C, how much more must be added to saturate the solution?
asked by pinky 
physics 11
A river has a current of 5 m/s. A boat tries to head directly across at 4 m/s. When the boat reaches the other side it is 30m downstream. How wide is the river ?
asked by joshua 
algebra I
5x +7= 4y6 solve the equivalent equation for x thank you
asked by Daniel 
algebra
the ratio of two integers is 9:7. their sum is 1024. find the two integers.
asked by stephanie 
social studies
I am a member or a community, I have a role in the community, and follow its rules What am I?
asked by Molina 
Math
3/4 + 2/3
asked by Aly 
english
It is not what an author says, but what he or she whispers that is important, what does it mean? what are some short story is connect to this quote that can write a critical lens essay
asked by 000 
MATH PLEASE HELP
A certain molecule contains twice as many atoms of hydrogen as oxygen and one more atom of carbon than hydrogen. If there are 31 atoms altogether in the molecule. how many atoms of carbon are there?
asked by steph 
general
Write 3 examples of different codes in our world? Example 1: morse code, example 2: ??? Please, help. Thank you.
asked by Anonymous 
Global History
Was the middle class satisfied with the steps Napoleon took to restore order to France?
asked by danny123 
Pre algrbra
What property is c to the seventh power x 1= c to the seventh power?
asked by Amanda 
chemistry
what are two resonance structures for SPN
asked by Anonymous 
math
3/4 + 2/3.
asked by Aly 
chemAm I Right????
For 0.10 M ZnCl2 and 0.10 M KAl(SO4)2, find:? a) spectator ions (if any) b) ions expected to hydrolyze (if any) c) net ionic equation for hydrolysis d) expression for equilibrium constant (Ka or Kb) e) value of Ka or Kb My answers are: a) Cl ; K+ ; SO4^2
asked by Isabella 
Chemistry
the total pressure in the vessel is 199kPa. How much pressure does nitrogen exert on helium if it had a pressure of 94 kPa?
asked by Guy 
Chemistry
Determine the type of radiation: a frequency of 5.6 mhz
asked by Jennifer 
math am I right?
3/10  5/100 = 35/100?
asked by Aly 
physics
a kid goes down a slide, accelerating at 1 m/s^2 for 3 seconds. if he starts at rest, how long is the slide ? this is the equation i have but i need Xi which i have NO clue what it is .. Xf= Xi+ 0m/s(3s)+1/2 (1m/s^2)(3^2s) solving for Xf ... need Xi
asked by christine 
physics
find the frictional force between an air hockey puck and the table, assume u air = 1.8 X 10^5 kg/ms, the puck is 0.013 above the table, the puck has an area of 25 cm^2
asked by emily 
To Ms. Sue
Ms. Sue, I had a question yesterday about stress, and I still require help on it. I'll give you the question as it is written to me. When you took the Multiple Intelligences quiz, what type of intelligence was rated the highest? How do you think this
asked by Sara 
ALgebra
use slopes to show that the triangle with vertices (2,7), (6,9) and (3,4) is a right triangle. write an equation of the line that has yintercept 5/7 and is parallel to the graph of 6x3y=1
asked by jose 
Economics
Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter.
asked by Tracey 
Economics
One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work
asked by Tracey 
Economics
Suppose that the price of a stock is $50 at the beginning of a year and $53 at the end of the year, and it pays a dividend of $2 during the year. Calculate the stock’s current yield, capitalgains yield, and the return. Show your work for three separate
asked by Tracey 
geometry...HELP!!
point A and B on the grid represent justin's house and the theater, respectively. if each unit reprsents 1 mile approximately how far must justin drive to get to the ttheater?
asked by sara 
chemistry
Calculate the density of chlorine gas in g/L, at STP I'm coming up with 3.2g/L (by using 70.9 g Cl2) Cl gas is diatomic, correct? Is this correct?
asked by lavonne 
social studies
How does advertising influence people’s purchases?
asked by Betty 
US History
38. Jackson defended the spoils system by claiming that it prevented a. partisan politics b. control of government by the rich c. minority rule d. an imbalance of power ...D? 39. The goal of the Lecompton constitution was to a. establish slavery in Kansas
asked by mysterychicken 
Chemistry
What do they mean by central metal, charge on metal ion and Abbreviated electron configuration for the electron ion? And I'm looking at CoCl2·6H20.
asked by Anonymous 
Chemistry
Thank you for your help. I did want to clarify why you are only calculating the Molar Mass for H2 and not the molar mass for H2O (or even H2O2). I'm not sure why you did this. Please clarify. See below: The following reaction represents the decomposition
asked by Andre 
math
3 3/4 + 2 1/4
asked by Aly 
Math
Ferroza can buy a 24 ounce bag of ferret food for 1.19 or she can buy a 36 ounce bag for 2.89. which is the better deal?
asked by Brooke 
chemistry
Calculate the pressure of 0.55 mol NH3 gas in a 2.00 L vessel at 25 celsius, using ideal gas law.
asked by lavonne 
algebra
Find two consecutive even integers such that the sum of the larger and twice the smaller is 62. PLEASE HELP I DON'T GET IT!/:
asked by desiree 
Social studies
I am trying to find the population graph/growth of India. I need the chart to be in google images and it should be accurate. The years should be till 20002008. It has to be correct. Please help me find one. Thank you!
asked by Pratigya 
chemistry
How many grams of CO2 are contained in 550 mL of the gas at STP I've worked all of these questions and I'm trying to see if I'm right, and if not, where I went wrong.
asked by lavonne 
arithmetic
What % of 250,148,571 is 136,800,000?
asked by Anonymous 
english
Explain the process by which Hrothga wins power and fame.
asked by stephon 
Geometry
ef=2x15, fg=3x15,eg=23 find the values of x,ef and fg
asked by Cameron 
chemistry
A 1.325 g sample of an unknown vapor occupies 386 mL at 114 celsius and 946 mmHg. The simplest formula of the compound is NO2. What is the molecular formula of the compound? (I have N2O4, is this correct and if not, why not? We never went over this type of
asked by lavonne 
H. P short essay Q.
why are axon terminals sometimes called "biologist transducers"?
asked by Gigg 
math
how would you solve this 31=2*x+c+1
asked by steph 
Chemistry
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 9.0 M HCl is required to react completely with 5.00 g of magnesium?
asked by Mattie 
math
Analogies: 54:45 :: 79: ______
asked by Robert 
chemistry
what is between air molecules? a) air b) dust c) pollutants d) oxygen e) nothing
asked by thomas richards 
social studies
where is the international date line located
asked by jhoin 
6th grade
how to solve equations containing integers?
asked by jose 
7th grade
determine your distance traveled and displacement if you walk 100m foward than 35m
asked by Gabriella 
English
What is an explanation when someone says: "The our crime's worse than a murderer's. His act puts him outside the law, but keeps the law intact. Ours would weaken the law." P.s. These men are forming a posse to hang a gang that killed one of their townsmen.
asked by Samantha 
Algebra 2
two people, john and mary, are 200 miles apart and leave at the same time to meet. They are driving toward each other at constant rate on the same straight road. John is traveling at 45 mph and Mary is traveling at 35 mph. When they meet, how many miles
asked by Sarah 
social studies
how many state were on the us flag in 1950?
asked by nat 
4th grade
what is a perpidicular ray?
asked by zoey 
math
10 1/8 + 3 3/4 is it 13 and 7/8 or no?
asked by Aly 
Physics
A marble rolls off a table with a horizontal velocity of 1.2 m/s. The marble falls in a cup placed horizontally 0.51m from the table's edge. How high is the table?
asked by Katsu 
Physics
A projectile is caught at the same height from which it was launched. If it is caught with a velocity of 15m/s, what is the initial velocity?
asked by Katsu 
Physics
Water from a garden hose that is pointed 23° above the horizontal lands directly on a sunbather lying on the ground 3.9 m away in the horizontal direction. If the hose is held 1.4 m above the ground, at what speed does the water leave the nozzle?
asked by Katsu 
Physics
A horizontal rifle is fired at a bull'seye. The muzzle speed of the bullet is 745 m/s. The barrel is pointed directly at the center of the bull'seye, but the bullet strikes the target 0.020 m below the center. What is the horizontal distance between the
asked by Katsu 
Physics
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff?
asked by Katsu 
Physics
A jetliner is moving at a speed of 270 m/s. The vertical component of the plane's velocity is 39.8 m/s. Determine the magnitude of the horizontal component of the plane's velocity.
asked by Katsu 
anatomy
What portion of the large intestine lies directly below the stomach and left hemidiaphragm
asked by Anonymous 
math
1 5/9  1 2/9 = 1 7/9 yes or no?
asked by Aly 
math
7/10 of the population is 175104000 what is the total population?
asked by jesus a 
To Ms. Sue
Ms. Sue, I just added more information to my answer. Can you check to see if it's good, thanks a lot. When you took the Multiple Intelligences quiz, what type of intelligence was rated the highest? How do you think this affects how you deal with stress?
asked by Sara 
physics
A 5.0 kg object moving in the +x direction at 5.5 m/s collides headon with a 3.1 kg object moving in the x direction at 4.0 m/s. Find the final velocity of each mass for each of the following situations. (Take the positive direction to be +x.) The bodies
asked by Cassia 
math...
how would u solve 212.50=20*x + 30*y
asked by JENN 
chemistry
give 2 commercial or practical uses of this flame color phenomena.
asked by Kassandra 
Physics
How do you find acceleration when given Force and Time?
asked by Katsu 
calculus
show limit x to 1 (x^2)sin(1/(x1)) = 0
asked by confuzzled 
calculus
find the limit of f'(x) = 1/(√x) using the limit definition of derivative as x approaches 0.
asked by John 
calculus
find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.
asked by Sasha 
english
Explain the process by which hrothgar wins power and fame?
asked by sekou 
Liberal Arts Math
How many different groups of 7 students can you create from a class of 20 students? How many different results could there be for 10 political candidates running for the same office in the upcoming election?
asked by Jeannie 
Chemistry
Just need these last few checked: 6. Elements in a group on the periodic table have similar properties. False? 7. Nonmetals are ductile materials. False? 11. Matter can be created or destroyed using common chemical changes. True? 13. 346.7500 has five
asked by mysterychicken 
physics
whats the acceleration of a car traveling 402 meters in 6 seconds
asked by memo 
geometry
AC = 3x + 1, and BD = 4x + 2
asked by justice 
physics
A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time
asked by elaine 
physics
A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time
asked by elaine 
Physics
Given a free falling object that is initially at rest, what are the objects displacement, velocity, and acceleration after 9 seconds?
asked by Katsu 
Chemistry
How do you find unpaired electrons in a metal ion in CuSO4·5H20?
asked by May 
Chemistry
Is the central metal of KMnO4 be Mn?
asked by Anonymous 
physics
A car starts from rest on a curve with a radius of 110 m and accelerates at 0.600 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.30 m/s^2?
asked by Julian 
Math
how do I solve this problem? (6x+1)
asked by Ayzure 
english
cub scout is to eagle scout as rookie is to
asked by tina 
english
edith for spelling and punctuation? its a good idea to put the matches into a waterproof case before you put them into your pack?
asked by tina 
Epidemiology
Design the appropriate 2x2 table, calculate and interpret the appropriate measure of association. You suspect that the association between alcohol use and CHD might be confounded by smoking. You collect the following data: Smokers NonSmokers CHD No CHD
asked by Latice 
Simple Math Question
two people, john and mary, are 200 miles apart and leave at the same time to meet. They are driving toward each other at constant rate on the same straight road. John is traveling at 45 mph and Mary is traveling at 35 mph. When they meet, how many miles
asked by Anonymous 
math 4 grade
Some poeple believe that Jan 1,2000is the first day of the 21st century.Other poeple beleive that the honor belongs to the Jan 1,2001.But everyone should agree that Jan 1,2002 is the first"sumday" of the new century when you write out that date in
asked by Thanh 
Chemistry
The Bohr model stops representing correct atomic structure when? Why? What does this mean for remaining atoms? How does Bohr's model relates to the periodic table?
asked by Katie 
college
describe how statistics can be important and influential in the nursing profession. Provide at least two examples where you have observed statistics to contribute positively to the needs of the customer.
asked by Elena 
Chemistry
You write the electron structure like this. 1s2 2s2 2p6 3s2 3p6 3d10 4s1 is the neutral Cu atom. Remove the two outside electrons to make the Cu^+2 ion. That leaves us with 3d9 as the outside and since that is an odd number, one electron must be unpaired.
asked by Anonymous 
chemistry
calculate the frequency of light that has a wavelength of 103 nm
asked by adrian 
geometry
Paula built a play area for her dog in the shape of a regular pentagon. If the perimeter is 35 feet, what is the length of each side of the play area?
asked by Mika 
ap chemistry
A solution is prepared in which a trace or small amount of Fe+2 is added to a much larger amount of solution in which the [OH] is 1.0M*10^2. some Fe(OH)2 precipitates. the value of Ksp for the salt is 8.0*10^10. assuming that the hydroxide ion
asked by brian 
biology
Which of these was not derived from an ancestral alpha proteobacterium? mitochondrion kinetoplast chloroplast hydrogenosome mitosome
asked by Sarah 
MATH
MAKE A TALL CHARTT FOR THE NUMBER OF STUDENTS IN THE THIRD FOURTH AND FIFTH GRADE CLASSES: 26,25,27,27,26,28,27
asked by SYDNEY 
math
could someone show me how to write this or set up this equation?2 ships sail from the same port, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours?
asked by Greg 
english
Please tell me if I should use to or too in the following sentence: Anthony knew all (to, too) well that he shouldn't have eaten a third piece of lasagna.
asked by julie 
advanced history
I need a website that will tell me everything about The Independence Debate:Consequences for the Colonies?
asked by madison 
9th grade
how are you suppose to respond to ¿quién es ella? the formal way in spanish?
asked by kiki 
math116
I find from the first equation that x = 3y and plugging in to the second equation we get o.2y+37(3y)=23 0.2y111y=23 110.8y=23 y=23/110.8 x=69/110.8 need help to understand why the elimination process in not work in this linear equation?
asked by unknown 
algebra
please help me solve 1/3(6x3y)1/2(8x4y)
asked by Sav 
chemistry
what is the net ionic equation for manganese sulfide and hydrobromic acid?
asked by sandra 
altgeld
the base of rectangular prism has a length of a m and a width of 4 m. if the volume is 64 cubic meters, what is the height of the prism?
asked by lasean 
materials engineering, essay topics
I have to write a research paper and here is the topic. The paper should be on the use of a new or existing material in a new or unique way. It could also llok at a new or unique way of forming or processing a material. Basically, when i say material, it
asked by Anonymous 
math
define standard form
asked by lisa 
English
1. I am looking for a dress to wear to the party. 2. I am looking for a dress which I will wear to the party. (Are both the same? What does 'to the party' modify? Is it 'dress'?)
asked by rfvv 
Physics
How come a heavy truck and a small car can both travel safely at the same speed around an icy, bankedcurve road? I would think that since mass is increased, normal force is therefore increased, and force of friction is therefore increased. And since the
asked by Hannah 
math
Sam wants to make concrete blocks that are 24 inches by 24 inches by 4 inches thick. How man blocks can he make from 1 cubic yard of concrete
asked by carolyn 
English
1. I have broken a window. (In this sentence, does 'the have pp' represent 'experience' of 'result'? Is the window still broken or not?)
asked by rfvv 
Simple Subjects
Complete subject of each sentence and simple subject. Mrs. Marcus told our class about Valentine's Day.
asked by Rylan 
math
how do you calculate the lengths of the midsegment
asked by Ted 
Human Physiology Short essay Question
why are axon terminals sometimes called "biologist transducers"?
asked by Gigg 
History
what compromises were made after shays rebellion?
asked by Iszy 
algebra
all number less than 3 units from 0 I need to write inequality represents each situation
asked by linda 
AP Chemistry
I don't understand this question and answer can someone help me? In order to exhibit delocalized pi bonding, a molecule must have . At least resonance 2 resonance structures.
asked by Ana 
Physics
A cannon shoots a shell at 42 degrees and at a velocity of 3000 m/s. How far does the shell travel in the xdirection?
asked by Anonymous 
statistics
If random samples, each with n = 36 scores, are selected from a normal population with m = 80 and s = 18, how much difference, on average, should there be between a sample mean and the population mean?
asked by Anonymous 
algebra
237(x+3)+5x=10
asked by Anonymous 
math
1,2,4,8,16,32,64 in exponential form?
asked by Aly 
math
in a bag of red and black jellybeans, 136 are red and the remainer are black jellybeans. If 15% of the jellybeans in the bag are black, what is the total number of jellybeans in the bag?
asked by Marie 
CRT 205
Crt 205 Vacuum Sales Digital Story Text Axia College Material Text of the Vacuum Sales Digital Story This text provides the script of the Vacuum Sales digital story. Use this text as an alternative or supplement to viewing the digital story itself. Script
asked by Unknown 
College Physics
Conceptual Question: Many people believe that a vacuum created inside a vacuum cleaner causes particles of dirt to be drawn in. Actually, the dirt is pushed in. Explain.
asked by Samantha 
English
1. I am looking for a dress to wear to the meeting. 2. I am looking for a shirt to wear to the birthday party. 3. I am looking for suits to wear to the conference. (Are they all grammatical? Why do we have to use the preposition 'to' before a place? Can we
asked by rfvv 
5th grade math
Ray asked his class about the number of cousins they each had. what was the mode for the number of cousins? 12,15,7,12,1,17,3,5,5,12,13,7,11,9,20,4,3,7,2,10,14,5,8,7,11.__________ Round 30.089 to the nearest tenth._____
asked by pat 
math
A leach free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7)and (6,0)?( one unit represents 10m)
asked by Ted 
Chemistry
In comparing the same two atoms bonded together, the greater the bond order, the shorter the bond length, and the greater the bond energy. Why is this the case?
asked by Ana 
Algebra
Find the domain of p(x)=x^+3 a) x is a real number b) x is a real number and x > 0 c) x is real number and does not equal 0 d) x is a real number and does not equal 3
asked by Sam 
College Chemistry
"What is the pH of a solution that is 0.50 M in sodium acetate and 0.75 M in acetic acid? (Ka for acetic acid is 1.85 x 105)." Would i use the Ka expression formula??
asked by James 
math
how do you calculate the lengths of the midsegment
asked by Ted 
Chem2
The Ksp for Ag2SO4 is 1.1x10^5. Calculate the standard free energy change for silver sulfate dissolution at 25 degrees.
asked by Sammie 
Chemistry
What volume of each of the following bases will react completely with 24.00 mL of 0.350 M HCl? 0.100 M NaOH 0.0500 M Ba(OH)2 0.250 M KOH
asked by Mattie 
College Chemistry
The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf
asked by James 
math
A builder needs to connect a partilly built house to a temporary power supply. on the plan, the coordinates of the house are (50,113) and the power supply is at ()147,82). what is the least amount of cable needed? why is it likely that the builder will use
asked by Ted 
Chemistry
Sulfur (3.26 g) is burned in a constant volume calorimeter with excess O2(g). The temperature increases from 21.25°C to 28.22°C. The bomb has a heat capacity of 923 J/K, and the calorimeter contains 815 g of water. Calculate ΔU per mole of SO2 formed,
asked by Noelle 
probability!
so i am asked to find the prob of a male professor  given that he is promoted. and the stats are female promoted = 3% female not promoted  12% male promoted 17% male not promoted  68% and i just wrote down that it is 17% is this true? ALso, i looked up
asked by Lauren 
calculus
use implcit differenciation to find an eqaution of both the tangent line to the ellipse: 2x^2 + 4y^2 = 36 that passes through the points: 14,3
asked by mike 
5th math
please show me an example of this one so.i can use it later to pratice the actual test next week here is the problem. complete each pattern. 17,,,62,,92 39,,,75,84 57,,,33,,17 15,,,33,,45 PLEASE FILLED OUT ALL THE BLANK FOR ME
asked by pat 
trig
how do i find six trig functions for cos(pi over 2x)=3/5, cos x=4/5?
asked by Anonymous 
Trig
A force of 323 newtons makes an angle of 54 degrees and 20 minutes with a second force. The resultant of the two forces makes an angle of 39 degrees forty minutes with the first force. Find the magnitude of the second force. I have the answer, 814.3022,
asked by Brittany 
Grammar
The honesty of children is refreshing. Now we have to write it to show possession.
asked by Kolten 
math
A triangle has vertices P(7,7), Q(3,5), and R(5,3). a. calculate the lengths of the midsegmaents b. calculate the lengths of the three side of triangle PQR. c. compare your answers in a. and b. what do you notice?
asked by Ted 
math
A leach free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7)and (6,0)?( one unit represents 10m)
asked by Ted 
MATH
Solving by graphing DQ 1 Solving by substitution Solving by elimination Which method do you think would be best to solve this system? y=10x8 y=1/2x+5
asked by Anonymous 
Calculus
A particle moves along a line so that its posistion at any t is greater than or equal to 0 is given by the function s(t)= t^38t+1, where s is measured in feet and t is measured in seconds. a) find the displacement during the first three seconds b) Find
asked by Ally 
College Stat
Draw a vertical line through a normal distribution for each of the following z score locations. Determine whether the body is on the right or left side of the line and find the proportion in the body. (a). z = 2.20 (b) z = 1.60 (c) z = 1.50 (d) z = 
asked by jackie 
physics
How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.80 m/s^2?
asked by blashhh 
math11
Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an
asked by Juliet 
Chemistry
What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?
asked by Ashley 
Chemistry
What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?
asked by Ashley 
Calculus
a boat leaves a doct at 2:00pm, heading west at 15km/h. Another boat heads south at 12km/h and reaches the same dock at 3:00pm. When were the boats closest to each other.
asked by Tasmina 
Chemistry
A 26.7 g sample of ethylene glycol, a car radiator coolant, loses 668 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)?
asked by Brittany 
Chemistry
One piece of copper jewelry at 101°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter (c of copper = 0.387
asked by Brittany 
algebra
it takes 1 cup of liquid fertilizer to make 7 1/2 gallons of spray. how much liquid fertilizer is needed to make 80 gallons of spray?
asked by leticia 
Chemistry
A 30.5 g sample of an alloy at 94.0°C is placed into 48.7 g water at 20.3°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat
asked by Cory 
Mathsintegral
the time index t runs from a to A. if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per year and the interest rate is 6% per year continuously compounded. what is the present value? what is the integral function?
asked by May 
math11
Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an
asked by Juliet 
CHEM
How many grams of helium must be added to a balloon containing 8.00 g of helium gas to double its volume. Assume no temp or pressure change.
asked by Lilli 
Chemistry
When 33.5 mL of 0.535 M H2SO4 is added to 33.5 mL of 1.07 M KOH in a coffeecup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the
asked by Matt 
Chemistry
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting,
asked by Jo 
algebra II
is (8x  20y = 40) (2x + 5y = 30) a soultion
asked by Tatyana 
PROB
Researchers at the University of Pennsylvania School of Medicine have determined that children under 2 years old who sleep with the lights on have a 36% chance of becoming myopic before they turn 16. Children who sleep in darkness have a 21% chance of
asked by Lauren 
accounting
Corporation is considering issuing bonds on January 1, 2009, and has asked your advice concerning several matters. The firm plans to issue $800,000 of 30year, 10 percent bonds. Bond interest payments are on January 1 and July 1.
asked by marathoner 
accounting
Corporation is considering issuing bonds on January 1, 2009, and has asked your advice concerning several matters. The firm plans to issue $800,000 of 30year, 10 percent bonds. Bond interest payments are on January 1 and July 1.
asked by marathoner