Questions Asked on
September 15, 2010

chem
The concentration of a benzene solution prepared by mixing 12.0 g C6H6 with 38.0 g CCl4 is__________ molal.
asked by jessie 
Geology
Isochron Diagrams Page 14 of 17 On the control part of the graph select the Rb/Sr option. Rember that the Halflife of Rb87 is 48.8 Billion Years. Note that the scale on the horizontal axis is now 10 times greater than the vertical axis. Move the slider
asked by Anonymous 
chemistry h/w help
The concentration of lead nitrate (Pb(NO3 )2 ) in a 0.726 M solution is __________ molal. The density of the solution is 1.202 g/mL.
asked by john 
math
Assume that the committee consists of 4 Republicans and 5 Democrats. A subcommittee consisting of 5 people is to be selected. How many such subcommittees are possible if each subcommittee must contain at least 1 and no more than 2 Republicans?
asked by Shawna 
Honors Chemistry
Due to the screening effect, the 3s electrons of magnesium (Mg) feel an effective nuclear charge (Zeff) of: 1. +1 2. +2 3. −2 4. +12 5. +4
asked by Bill 
chemistry electrochem
A cell can be prepared from copper and tin. What is the E° cellfor the cell that forms from the following half reactions? Cu2+(aq) + 2eCu(s) E° = 0.35 V Sn4+(aq) + 2e Sn2+(aq) E° = 0.13 V a. 0.48 V b. 0.22 V c. 0.48 V d. 0.22 V
asked by lucylu 
Physics
In the figure below the left hand calbe has a tension T1 and makes an angle of 42 with the horizontal. the right hand calbe as a tension T3 and makes an angle of 47 with the horizontal. The horizontal cable connecting the two masses has a tension of 37 N.
asked by Josh 
Geometry
Glenda wants to glue glitter over a piece of felt shaped like a parallelogram with a height of 36 in. and a base of 46 in. If the glitter costs $1.20 per ft2 to cover the felt, how much will it cost to cover the felt? A) $55.20 B) $1987.2 C) $165.60 D)
asked by Katie 
chemistry
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting solution? is 1.05 g/ml. the concentration of CaCl2 is ________% by mass. answer: 5.94 can someone tell me the steps?
asked by john 
english
wht is the verb in this sentence: She exposes insurance cheats and lying spouses.
asked by Tisha 
math
selecting three (3) coins, but assume that there are 5 dimes, 4 nickels, and 2 quarters. In how many possible ways can the selection be made so that the value of the coins is at least 25 cents?
asked by Shawn 
Physics
An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 210 m from the crossing and its speed is 26 m/s. If the engineer’s reaction time is 0.62 s,
asked by Jennifer 
Chemistry
When 4.0 mol of CCl4 reacts with an excess of HF, 3.0 mol of CCl2F2 (Freon) is obtained. The equation for the reaction is CCl4(l) + 2HF(g) > CCl2F2(l) + 2HCl9g) State which of the statements are true about the reaction and make the false statements true.
asked by Bree 
English
Posted by rfvv on Wednesday, September 15, 2010 at 10:00pm. 1. Tell me more about rice cake. 2. Tell me a lot about rice cake. (What is the part of speech of 'more'? A noun or an adverb? Are both the same?) English  Ms. Sue, Wednesday, September 15, 2010
asked by rfvv 
geometry
Assume that the given angles have been measured, and calculate the angles (marked as x) that could not be found by direct measurement. a = 38 x = 1Your answer was incorrect, but has changed from what was graded.
asked by Anonymous 
Statistics
Which of the following statements correctly interprets a 95% confidence interval on a population mean? a. It is a single point estimate b. Used to quantify the certainty of the sample standard deviation c. A 99% confidence interval is narrower than the 95%
asked by Beata Chmielewska 
Statistics
What statistical assumptions need to be validated for ANOVA results to be valid? a. observations are from an Fdistribution b. Observations are from a Chi square distribution c. Observations are normally distributes, independent, a variances are equal d.
asked by Beata Chmielewska 
Chemistry
6p2 is the last one of the electron configuration. I think the element is Pb. How do I know the charge of the element?
asked by Morgan 
math
Assume that there are 6 unfilled roles: 1 male and 5 female. There are 5 men and 7 women, including Ann, auditioning for a part in the play. How many of these casts include Ann?
asked by amy 
chemistry
If 1.68 L of water is initially at 25.0 °C, what will its temperature be after absorption of 6.8 102 kWh of heat? I don't know how to set it up because i have the equation q= m times c times change in temp (the triangle and the a T is the symbol for
asked by Rebekah 
Statistics
When population data are discrete and you want to compare two populations, which test is most appropriate? a. Ttest b. Anderson Darling c. Leven’s d. 2Proprotion test e. Ftest
asked by Beata Chmielewska 
Statistics
Which testing a statistical hypothesis with significance level of alpha 0.05, when do you reject the NULL hypothesis (HO)?
asked by Beata Chmielewska 
chem
What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 > Cu(NO3)2 + 2 Ag
asked by vanessa 
physics
a jet plane lands with a speed of 101 m/s and can accelerate at a maximum rate of 4.60 m/s2 as it comes to rest. (a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest? ___s b)What is the actual
asked by jer 
chemistry
A 43 kg sample of water absorbs 343 kJ of heat. If the water was initially at 22.1°C, what is its final temperature? I got 1.9 but i think i didn't do it correctly
asked by hannah 
Geometery
Find the measures of the requested angles. In the figure, ABF measures 41° and DBG measures 93°. Find the measures of , , and . A) ABD = 52°, GBC = 46°, EBC = 52°, and FBE = 131° B) ABD = 41°, GBC = 46°, EBC = 41°, and FBE = 134° C) ABD = 49°,
asked by Missy 
algebra1
find each sum,difference,or product. If the sum or difference does not exist, write impossible. if A=[5 2 7 B=[2 9 3 C=[4 2 D=[37 22 1 0 13 12 4 7 9 7 5 12 3 8 6] 6 2 5] 15 33] 11 0] 1.A+B 2.B+C 3.C+D 4.DB 5.AB 6.DC 7.2D 8.4B 9.3A 10.3C
asked by QP 
math
Assume that the set S has 14 elements. How many subsets of S have at most 4 elements?
asked by Laura 
calculus
Solve the equation by extracting square roots. List both the exact solutions and decimal solutions rounded to the nearest hundredth. (x7)squared = (x+3)squared
asked by Anonymous 
Chemistry 2
How many orbitals in an atom can have each of the following designations? (a) 3p (b) n=1
asked by Jon 
chemistry
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 12.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.) please explain realy realy
asked by Rebekah 
physics
Mary needs to row her boat across a 120 m wide river that is flowing to the east at a speed of 1.4 m/s. Mary can row the boat with a speed of 2.0 m relative to the water. 1. How long does it take Mary to reach the opposite river bank ? 2.If Mary rows
asked by Melissa 
Statistics
Which one of the following test is used to compare five means, simultaneously? Run test Normally test One way ANOVA 2 Sample T Test FTest
asked by Beata Chmielewska 
chemistry
One M&M candy has a volume of 1.0mL. What volume, in cubic meters, would one mole of M&M candies occupy? 2) For this next calculation, you’re going to compare the volume of a mole of M&Ms to Lake Erie, which has a volume of 116mi^3. How many lakes the
asked by Vova 
Mathmatics.. 9th grade
Your family is driving 188 miles to visit a family member, your father drives 63 miles then stops for a break, a) How many more miles are left in the trip, B) How long will the remainder of the trip take? *It says to label a variable, write an equation and
asked by Not putting it 
10th grade
mary has a bag which contains 5 green marbles, 7 red marbles, and 9 blue marbles. without looking what is the probability of her pulling a red or a green marble
asked by tune 
Math
Help! Toshiro Hashimoto invested some money at 4.5% simple interest and $1000 more than four times the amount at 6%. His total annual income for one year from interest on the two investments was $801. How much did he invest at each rate?
asked by Joel 
nutrition
Needed: Nutrient to deliver food and waste
asked by Alyssia 
Physics
The drawing shows an elastic cord attatched to two back teeth and stretched across a front tooth. The purpose of the arrangement is to apply a force to the front tooth. If the tension in the cord is 1.2N what are the magnitude and direction of the force
asked by Jacob 
About Chemistry
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 °C above a solution prepared by dissolving 35 g of urea (a nonvolatile, nonelectrolyte, MW = 60.0 g/mol) in 75 g of water. im not sure about the
asked by BEN 
Geometry
Find the requested angle. The supplement of 135°.
asked by Katie 
Chemistry
Calculate the final temperature of 283 mL of water initially at 30 degrees celcius upon absorption of 19 kJ of heat
asked by Anonymous 
spanish
Que te gusta hacer? Will someone give me some possible answers for this question?
asked by j 
Physics
You are pulling a suitcase through the airport at a constant speed. the handle of the suitcase makes an angle of 45 degrees with respect to the horizontal direction. if you pull with a force of 7.5N parallel to the handle, what is the force of friction
asked by Jorge 
English
Could you please let me know if everything is OK? Thank you. 1) He also explained to him that the natives had attacked the steamer because they didn’t want Marlow to leave. He himself was enthusiastic about Kurtz because he had enlarged (or broaden,
asked by Franco 
Chemistry 3
For each of the following sublevels, give the n and l values and the number of orbitals. (a) 3s (b) 5f (c) 5g
asked by Jon 
math
the volume of fort pck dam is 96,050 x1,000 m3 if you increase it 10 times how many cm will it hold after increase
asked by samiam 
An Overview of Teaching Techniques
1. Which learning technique is frequently used in the expository model of teaching? A. Deductive thinking C. Discovery learning B. Inductive thinking D. Knowledgebased learning 2. Which technique is used after a student gives a wrong answer, and the
asked by Sum1Special 
math 8
how do the degree and the sign of the leading coefficient correspond to the end behaviour of the polynomial function. please help I don't know where to start..
asked by Bobby 
Math
Write an equation of the line satisfying the given conditions in standard form. How do you do this? contains (4, 0.3) and (3, 3.4)
asked by Courtney 
math
1+7x=36
asked by kavizijiah 
biology
1. Which bond will comes apart in water? answer: ionic
asked by Jetta 
Algebra 2
factor each polynomial 36p^249q^2
asked by Tristan 
geography
If a state is outside of the contiguous United States, what does this mean? It means that it is not connected to or touching any of the states in the U.S. Such as Hawaii and Alaska. Is this correct?
asked by Reed 
Math
Find the Quotient and remainder using long division. 1. (x^3+1) / (x^2+x+2) 2. (14x^316x^2+10x+8) / (x1) Please explain because I want to learn how to do this correctly. Thanks
asked by Laly 
algebra
a) What year would be represented by x = 2? 2002 x 1 = 2003 so it would be 3x2=6 b) How much did it cost per gallon of gasoline in the year represented by x=2? .99
asked by Sydney 
college algebra
estimate, to the nearest tenth, the difference between the average number of awakenings during the night between 25yearold men and 25yearold women if women woke up 1.5 times and men woke up 3 times a night.
asked by janice 
chemistry
What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 > Cu(NO3)2 + 2 Ag
asked by sarah 
Math Help
Mieko, who is 1.53 m tall, wishes to find the height of a tree. She walks 21.66 m from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. She is
asked by Jill 
math
What property of addition is shown in the following number sentence? why?
asked by cody 
math
Show how commutative property of addition works using the numbers 2, 3, & 5
asked by cody 
biology
Which macromolecules were present in your saliva and food choices? Explain why you think you got the results you did.
asked by bob stanfield 
Business
What are some of the organizational costs when managers do not handle prejudiced or stereotypical behavior appropriately?
asked by FlowerPower 
math
write each of the following in decimal form: (a) 5x100+2x10+7+4x0.1+8x0.001 ________________________________ (b)... ________________________________
asked by raluca 
Math
Does (1cosx)^2 simplify to sin^2(x)?
asked by John 
adult education
Explain what the CPI is and do you think that the CPI accurately measures the rate of inflation?
asked by Anonymous 
Calc
Find an expression for the function whose graph is the given curve. The top half of the circle x^2 + (y2)^2 = 4 My final answer is y= 2 +/ sqrt of x4 However, I circled the positive sign because that's the top half. Is this right? I was not sure whether
asked by Chelsea 
college
Caculate percent error of 10.92 and 10.43
asked by Natalie 
College Physics
A particle is moving in the xy plane with constant acceleration. At t=o, the particle is given by x=4m, y=3m, and has a velocity v=2m/s xhat  9m/s yhat. The acceleration of the particle is given by a=4m/s^2 xhat + 3m/s^2 yhat. Find the velocity vector
asked by Anonymous 
chemistry
How many grams of aspirin is equlvalent to 150 mg of aspirin?
asked by janay 
chemistry
Gallium67 is used medically in tumorseeking agents. The halflife of gallium67 is 78.2 hours. If you begin with 36.6 mg of this isotope, what mass remains after 190 hours have passed?
asked by fatin 
CSN
identifying three challenges that might arise when writing a paper.
asked by sally 
algebra
Thank you for helping my with my Algebra.. write an equation for 5 more than a number g is 6 less thn twice a number h
asked by michael 
math
Find the pattern 31,28,31,30,,30,31,,30,31,30,31
asked by Caren 
English
1. Tell me more about rice cake. 2. Tell me a lot about rice cake. (What is the part of speech of 'more'? A noun or an adverb? Are both the same?)
asked by rfvv 
Math(College Algebra)
I'm having trouble how to set up this math problem: Rebecca Herst received a yearend bonus of $17,000 from her company and invested the money in an account paying 6.5%. How much additional money should she deposit in an account paying 5% so that the
asked by Gillian 
chemistry
a metal weighing 20.32 g is added to a flask with a volume of 24.5ml. it is found that 18.52 g of water must be added to fill tha flask what is the density of metal
asked by marie 
math
three times a number less four is 17 put in number form
asked by jennifer 
Geography
how did the columbian exchange affect the long term economic development of Latin America?
asked by Melody 
pre calc  polynomials & factoring
perform the opertaion and write the result in standard form... (2x^2 + 1)  (x^2  2x + 1)
asked by Sienna 
math
three times a number less four is 17 put in number form
asked by jennifer 
math
Simplify the expression 4(3z^36)+12(2z^3)=
asked by kate 
Math
2n+5+7n8=15
asked by Jake 
business
Write a four paragraph answer, citing the text, to – Would you be willing to pay $500 today in exchange for $10,000 in 30 years? What would be the key considerations in answering yes or no? Would your answer depend on who is making the promise to repay?
asked by charrise 
3rd grade
hundred chart to subtract 12 from 46
asked by carolina 
english
is this a good srong thesis statemnent? Minnie acted out of rage and lost her sanity which relates to the isolation, gender differnece and unhappy marriage.
asked by terri 
accounting
I need to make a t account for accounting homework. The statements are from 2009? Earned revenues for 2009 of 55,000 including 8,000 on credit and 47,000 cash. Received a 3,000 deposit from hospital to start January 5, 2010. Purchased supplies on account
asked by chris 
geometry
Suppose that AC=15 and BC=9. What is AB?
asked by Courtney 
Chemisty  urgent
How do I prepare 30% v/v ethanol from 95% ethanol? Thanks.
asked by annie 
Math
What is the word form for 1.555?
asked by Barb 
calculus
Find all positive values of x that satisfy x multiplied by the x root of x^2 = x^x
asked by Jayna 
chem need major help!
ok i know i posted this before but it got totally confusing and its late and its due tom. When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 14.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18
asked by Sarah 
physics
: A 50kg wooden crate rests on a horizontal concrete floor. The coefficient of friction is u=0.7. What is the magnitude of the frictional force?
asked by Tanner 
math
name three numbers between 0.33 and 0.34
asked by shannon 
math
Show that the set {[2,3],[4,1]} is linearly independent
asked by Tom 
Physics
A ball is thrown vertically upward with a speed of 25.4 m/s from a height of 2.1 m. (Remember gravity is a=9.8m/s^2) How long does the ball take to hit the ground after it reaches its highest point? Answer in units of s.
asked by Jennifer 
geometry
a magazine full page is 30" how many inches is a 1/8 page and a 3/4 page
asked by inga 
math
2n8=3n+3
asked by Jake 
Math  Intersection of planes
You are given the following two planes: x+4y3z12=0 x+6y2z22=0 a) Use the two original equations to determine two other equations that have the same solution as the original two. ANS: the orginal two are not parallel in anyway so can I just take
asked by Shaila 
math
how to simplify 2x^3x3/(x+1)
asked by mike 
physics
what are the units for velocity
asked by Anonymous 
English
i need help What does It mean to be an american citizen ?
asked by Stephanie 
chem hw "help"
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
asked by moon 
englsih
ok thanks now how does my introduction looks? In the short story Trifles by Susan Glaspell, describes a wife who slowly loses her identity and conforms her husband’s wishes, which leads her killing to kill her husband. When the Attorney and sheriff come
asked by terri 
math
i need the magic square from the follow numbers 3,4,5,6,7,8,9,10,11
asked by angel 
Chemistry
Calculate the amount of heat required to raise the temperature of a 54 g sample of water from 5°C to 20.°C.
asked by Ben 
us government
What is a good Citizen ?
asked by Carla 
calculus
Does the series from 0 to infinity of [1/square root of (n+4)] x cos(n x pi) converge or diverge? I think it diverges, but I don't know why. The "x"s are multiplication signs by the way.
asked by John 
computer
Do anybody know what a homepage is and what some good sites?
asked by wan 
Physics
A rock is dropped from a sea cliff 400m high.If the speed of sound is a constant 330 m/s, how long after the rock is dropped is the sound of the splash heard at the top of the cliff?
asked by Angela 
physics
if u measured all the energy related to motion, and all the stored energy in the particles of a substance, you would be measuring?
asked by dallas 
english
The Treasure of Lemon Brown by Walter Dean Myers. What is 3 thoughs and reactions of other Characters besides Lemon and Greg?
asked by hunter 
research website
please help me find a good video or website that has a good analysis for hamlet
asked by Sheila 
physics
Imagine that you want to create an activity for a group of children to simulate the periodic table. Suggest items that you may use and how they may be organized in rows and columns. Be creative. Share your ideas and offer further suggestions to your
asked by Anonymous 
Physics
At the instant a traffic light turns green, a car starts with a constant acceleration of 1.8 m/s(squared). At the same instant, a truck travelling at a constant velocity of 8.5 m/s passes the car. How far beyond the starting point will the car catch up to
asked by Angela 
English
What is a good citizen ?
asked by Carla 
Physics
A lightning bug flies at a velocity of 0.25m/s due east toward another lightning bug seen off in the distance. A light breeze blows from the east on the bug at a velocity of 0.25m/s. What is the resultant velocity of the lightning bug? Please direct me to
asked by Joel 
Physics
Please Help!! A baseball clears a 3m tall wall positioned 120 m from home plate. The ball leaves the bat 1.2m above the ground and 45degrees above the horizontal. How fast was it going when it left the bat?
asked by McKenzie 
12th grade
a tortoise and a hare are "running" in a race.you are asked to prepare graphs similar to those in your reading material to graph the process of each animal during the race.as in text,distance is the vertical scale of your graph and time is the horizontal
asked by Anonymous 
chemistry
Using the balances eqution and assuming all other reagents are in excess, how many hydrogen would be produced when 1.00 g of aluminum react?
asked by Joanne 
To:Ms.Sue
Would it be correct if I use "Everyone in life" instead of "Everyone in their life"? Would this still make "everyone" mean each and every individual?In addition, do you have any suggestion or ideas on how I should start the essay? Thanks
asked by Shadow 
English
I'm confused about the meaning of this sentence: The typical family is three or four children; the latter among the 8 to 12 children that will be born into the family during the lives of the parents. So I get confused where it says "the latter" Does this
asked by Amy~ 
A gift of money
what is the quantative reason of a 1,000,000 offered if given in 1 dollar bills if one lays on their stomache for ten minutes? would you accept offer?
asked by Anonymous 
AP US Government
What features of the Constitution make it difficult for government to do or achieve anything? Why were they included? *That is the question, but I am completely lost on how to answer it.
asked by n 
physics
How much work is needed to move a proton from a point with a potential of +470 V to a point where it is 51.0 V? Express your answer in joules. Express your answer in electron volts.
asked by VJC 
Math
Evaluate for A=7 B=2 6ab would I do 6x7x2?
asked by Dawn 
math
if a enegry bar contains 153 cllories and the protein makes up 11% what is the number of calories from the portein bar
asked by mal 
thank you!!
thank you for all your help! this is great homework help and it helped me a lot!!
asked by raluca 
College Physics II
A uniform electric field of magnitude 203 V/m is directed in the negative y direction. A +12.5 μC charge moves from the origin to the point (x, y) = (19.5 cm, 51.8 cm). 1) What was the change in the potential energy of this charge? 2) Through what
asked by VJC 
Chemistry
How much energy is released when 44.5 of water freezes?
asked by Delia 
math
what is the pattern for the following numbers 8 17 35 71 7143
asked by Blake 
English
In my class we were reading a short story call The Pedestrian by ray bradbury and my teacher ask me a bunch of questions like for example What is the theme of the story but i don't get the question ? i didn't understand the story neither
asked by Sasha 
math
(x)/(x8)= (x7)/(x+3) how do u solve this for x?
asked by Bill 
math
sean is buying a player for $315. interest free payment plan. pays $25 each month. a. how much will he owe after 1 payment? 2 payments? 3 payments? b. use n to stand for the number of payments and a for the amount still owed. write an equation for
asked by kim 
Chemistry
Suppose that you start with .305g of copper. compute the theoretical yiled of the phosphate in the above procedure. based on what you saw as you performed the experiment, what practical obstacles are there to wighing the cooper(II) phosphate to check its
asked by Missy 
geometry
Given AB is perpendicular to BC
asked by Amy 
Algebra
The width of a rectangle is 3 yards less than its length. the perimeter is 130 yards. Find the length and width of the rectangle
asked by Anonymous 
english
Use at least five adverbs and five adjectives to write a 150 to 300word review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more similar events. When
asked by dazzy 
Science
Fred and Joe are moving identical boxes across a floor where there is friction present. Fred pushes his box with a force that is directed 20 degrees below the horizontal, while Joe pulls his box using a rope that is angled 20 degrees above horizontal. Who
asked by Cassy 
computer
Please help me with this if you don't mind? Web page my home whole document with 2 links first page with 1 link selection with 1 link world travel framed page as shown wiht 1 link each frame separately with 3 links prices and packages  a single frame with
asked by wan 
physics
A 3.00kg block starts from rest at the top of a 30.0 degree incline and accerlates uniformly down the incline moving 2.00 m in 1.50 s. find the magnitude of the accerlation of the block
asked by Anonymous 
Algebra
I have a problem with linear funtion is f(8)=8 f(x) = x + 10=what is x is that always 0 so this answer would 10
asked by Sydney 
english
I did help with my thesis statement? I writing an essay from the play trifles by susan Glaspell. Thesis: Minnie Wright loses her mind which relates to isolation,the gender differneces and the canary death. I need a very strong thesis
asked by terri 
MATH
Help. don't understand substitution method also need an ordered pair? 7x+6y=15 7x=y=27
asked by Susan 
Chemistry
Suppose that you start with .303g of copper wire and faithfully follow the procedure. at the end you find that the copper dust weighs .309g. base on your understanding of the experimental procedure, offer at least two rational explanations for this
asked by Missy 
Chemistry
At one stage you add phosphate ion to the ractions sequence. where exactly does this phosphate end up? It is not weighed in with the copper at the end. Reaction sequence: Cu(NO3)2 = Cu(OH)2 =CuSO4 = Cu3(PO4)2= CuCl2=Cu
asked by Missy 
calculus
A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?
asked by rene 
calculus
A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?
asked by rene 
math
Let A represent Zog's age. Write a algebraic expression for each phrase. How would I write one if: 9 times the sum of Zog's age and 4 years?
asked by Dawn 
science
what is the mass of an object in kg that is 1225 N
asked by hannah jenson 
Finite Math
Assume that the student has a cup with 9 writing implements: 4 pencils, 3 ball point pens, and 2 felttip pens. Students will select 5 writing implements. In how many ways can the selection be made if no more than one ball point pen is selected?
asked by NATHAN 
Math
How do you Identify two pairs of congruent angles and the number of degrees in each congruent angle.
asked by Victoria 
economics
What institutions might arise in the free market to help a person decide whether to accept or reject a particular private monetary note?
asked by kelly 
8th grade
Dimensions of a paper cup. The volume of a paper cup, shaped like a circular cone is 30pie cubic centimeters. The radius of the top of the cup is 3 centimeters. What is the height of the cup?
asked by Chris Molle 
math
a group of fifth grade students in New Zealand are going camping. They will hike from Wellington to Ruapehu. Then they will follow a trail for another 1/2 mile to their campsite. I was able to calculate the distance from Wellington to Ruapehu by using the
asked by hope 
physics
A certain car is capable of accelerating at a rate of +0.90 m/s2. How long does it take for this car to go from a speed of 35 mi/h to a speed of 70 mi/h?
asked by J 
geography
How many countries does Mexico border? Is it three? We do not have to list them but am I right in saying they are the U.S., Belize and Guatemala
asked by Camryn 
english/ grammar
what is a correlative conjuction?
asked by kevin( to: ms. sue) 
Math
How would I write an algebra expression if You let Zog's Age represent the letter A. Question: Nine times Zog's Age four years ago.
asked by Dawn 
Essay
I'm trying to start an essay paragraph with the topic " Contributing to the community" and I was wondering if this is a good starting sentence.If not, please give me some ideas or suggestions for one.Thanks Everyone in life had made significant
asked by Shadow 
3rd grade math
I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is 1 more than my hundreds digit. What number am I?
asked by Traci 
English
why, at the end of the Act, does Hamlet say: The time is out of joint, O cursed spite That ever I was born to set it right! (1.5.210211)
asked by Sheila 
Physics
The leg and cast in the figure below weigh 280 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 130 N. Determine the weight w2 and the angle á needed so that no force is exerted on the hip joint by the
asked by Erica 
pre algebra
100 3(2.3) + 5.6
asked by Isabel 
Chemistry
Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 225 g water is heated in a microwave oven from 23°C to 91°C, with radiation of wavelength 1.55 102 m. How many photons are absorbed by
asked by Jon 
College Physics II
A charge of 4.191 μC is located at (5.100 m, 6.402 m), and a charge of 1.895 μC is located at (1.436 m, 0). Calculate the electric potential at the origin There is one point on the line connecting these two charges where the potential is zero. What is
asked by VJC 
Chemistry
Assume you have a 50 L barrel full of basketballs and a 50 barrel of tennis balls. If you dump both barrels full of balls into a 100 L barrel, will the barrel be full?
asked by Ana 
Chemistry
a car is traveling at a rate of 41.2 megameters/hr. what is the rate in cm/s?
asked by Lisa 
math
the diagonal of a square is 32 meters. What is the area of the square?
asked by Cassie 
College Physics II
Consider a region in space where a uniform electric field E = 7450 N/C points in the negative x direction. What is the distance between the +13.1 V and the +14.1 V equipotentials?
asked by VJC 
5th grademath
a group of fifth grade students are going camping. They will hike from Wellington to Ruapehu. Then they will follow a trail for another 1/2 mile to their campsite. The distance from Wellington to Ruapehu is 200 miles. About how long would it take the
asked by hope 
english
okay is this a better thesis? Minnie Wright’s insanity relates to isolation, unhappy marriage and the gender difference all causes her to the murder of her husband.
asked by terri 
history
what were the reason our forefathers divided the government into the legislative, executive and judicial branches.
asked by PAT 
geometry
if the coordinates of R and S are x and y, respectively, what is the coordinate of T, the midpoint of segment RS?
asked by ada 
College Physics II
If a capacitor has 3.84 μC of charge on it and an electric field of 2.22 kV/mm is desired if they are separated by 3.80 mm of air, what must each plate's area be?
asked by VJC 
history
How was the conflict between supporters of a strong federal government and champions of states rights characterized then, as opposed to now?
asked by PAT 
Math
If 2 girls are filling 1 cup up equally with fluids? And 1 drinks it and then fills the cup up with a solid and the other girl proceeds to eat it and then refill the cup with and exact matter... will they both equally weigh the same as before they started?
asked by David B. Davidson 
Literature
In a pair of silk stockings the silk stockings are a symbol of
asked by Anonymous 
algebra
when jill sells 2 more buckets she will have sold 3 times asmany buckets as jack. jill has sold 19 buckets. how many buckets has jack sold. write as an equation
asked by kimberly 
art
a necessary feature of art is?
asked by Anonymous 
Math
AB is DC parallel to . Identify two pairs of congruent angles and the number of degrees in each congruent angle. A) FAB BAD ; both are 29°. EDC CDA ; both are 29°. B) FAB EDC ; both are 29°. ADC BAD ; both are 151°. C) CDA FAB ; both are 151°. EDC BAD
asked by Victoria 
MATH
I am working on Measurements and it is one of the most difficult things for me to do. Topics include the SI measurement, Imperial Measurement, and Converting between SI and Imperial Systems. I would like to do some review on this and would like to know a
asked by Anonymous 
chemistry
For which of these elements would the electron affinity process shown be least favorable? 1. H + e− ! H− 2. Li + e− ! Li− 3. F + e− ! F− 4. O + e− ! O− 5. N + e− ! N−
asked by dave 
algebra 2
How does the height of a cone change if the volume of the cone is constant but the radius increases ?
asked by Anonymous 
Calculus
f(x)= x^3; f(x)= (x+DELTAx)f(x)/ x^3
asked by Michelle 
Calc
Express the surface area of a cube as a function of its volume. I did this and got A=6V^(2/3) That is the formula I got for the described function. However, I also need to find its domain... how do I do this?
asked by Chelsea 
Math.. sorry for posting so many, I just don't get
Let W represent the width of a rectangle, the length is 7cm more then the width A. 7cm more than four times the width How do I write that into an algebraic expression?
asked by Dawn 
Chemistry
A 295 lb fullback runs the 40 yd dash at a speed of 19.3 ± 0.1 mi/h. (a) What is his de Broglie wavelength (in meters)? (b) What is the uncertainty in his position?
asked by Jon 
PHYSICS
A jetliner is moving at a speed of 305 m/s. The vertical component of the plane's velocity is 47.5 m/s. Determine the magnitude of the horizontal component of the plane's velocity.
asked by veronica 
HIS 125
• Create a timeline of four to six significant events that occurred during World War II. o Include the following in your timeline: The year the event occurred The name and a short description of the event A short explanation of why the event
asked by Alex 
algebra
two sisters together have 20 books. if the younger sister lost 3 books and the older sister doubled the number she has, they would have a total of 30 books. How many books does each have?
asked by teresa 
chemistry
The first ionization potential of the elements B, C, and N (atomic numbers 5, 6, and 7) steadily increases, but that of O is less than that of N. The best interpretation of the lower value for O is that: 1. the ionization potential of N is a maximum and
asked by dave 
chemistry
For which of these elements would the electron affinity process shown be least favorable? 1. H + e− ! H− 2. Li + e− ! Li− 3. F + e− ! F− 4. O + e− ! O− 5. N + e− ! N−
asked by dave 
phil. Ethics
two judments which imply belief in objective moral truth
asked by shaa 
math
A number is between 150 and 200. A sum of the digits is 12. If you subtract the ones digit from the tens digit, the difference is 5. What is the number?
asked by Rose*** 
physic
if a ballon gets launched at 60mi/hr at an angle of 38 degrees. How far will it travel in meters?
asked by cristian 
midway
How do you write 67,000 in expanded form?
asked by karen 
math
carlos needs to chain his dog, he attaches a 13meter chain to the corner of a dog house that measures 9m by 5m. How much area does the dog have to run around? Round to the nearest tenth.
asked by tristan 
Chemistry
Water is a small molecule consisting of 3 atoms joined together. (they give the structure of H20. Alcohol is a large molecule consisting of 9 atoms joined together. (they give alcohol structure) using this information make a hypothesis that explains the
asked by Ana 
English
The bell was not brought back to Philadelphia until 1778. would the complete predicate be brought back to Philadelphia in 1778 and the verb be back?
asked by Anonymous 
math
53=2
asked by AnOnYmOuS1 
Geometry
A man needs to repaint the two triangular gables on his house. Each gable is long and high. How many gallons of paint will he need if a gallon of paint covers 100 sq. ft.? (You must buy whole gallons). A) 2 gallons B) 3 gallons C) 264 gallons D) 132
asked by Jill 
math
4+(6)=2
asked by AnOnYmOuS1 
chemistry
the experiment is a sequence of Chemical Reactions. Procedure part A preparation fo copper (II) Hydroxideget a solution of copper(II)nitrate. measure 25ml of solution. to blue solution add 2mL of concertarted NaOH while stirring. Let mixture settle and
asked by Missy 
physics
what is the shortest possible time in which a bacterium could drift at a constant speed of 3.5mm/s across a petri dish with a diameter of 8.4cm
asked by karina 
10th grade
Find a pattern fot this sequence. Usde the pattern to show the next two terms. 1,2,6,24,120,___,___?
asked by Anonymous 
Chemistry
So the water molecules fit in between the alcohol molecules? or do they attach to the structures?
asked by Ana 
math/116
How can I determine if two lines are perpendicular?
asked by Sydney 
math/116
How can I determine if two lines are perpendicular?
asked by Sydney 
bcc
what are the changes to n02 levels in one day
asked by luke 
math
7(4)=3
asked by AnOnYmOuS1 
bede
why do no2 levels change in one week
asked by shona 
math
0+(5)=5
asked by AnOnYmOuS1 
geography
I am confused. I am to list my full address and say what continent, hemispheres and planet is my address in!! New Orleans, La. Continent  North America. Hemisphere  Northern Hemisphere. Is this correct? Planet  Earth. Is this correct????
asked by Reed 
Biology
does the distance of the star of our planet impact the brightness of the star in sky?
asked by Anonymous 
accounting
Making a t account need to know how to enter this Recognized operating expenses for 2009 of 30,000 including 5,000 on credit and 25,000 cash
asked by chris 
math/116
How can I determine if two lines are perpendicular?
asked by Sydney 
PHYSICS
Two trees have perfectly straight trunks and are both growing perpendicular to the flat horizontal ground beneath them. The sides of the trunks that face each other are separated by 1.2 m. A frisky squirrel makes three jumps in rapid succession. First, he
asked by veronica 
math
2+6=4
asked by AnOnYmOuS1 
PHYSICS
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 340 m/s2. The ball is launched at an angle of 51° above the ground. Determine the
asked by veronica 
Mathmatics
Let W represent the width of a rectangle, the length is 7cm more than the width The question is: One fourth of the length? How would I write that? as a algebraic expression?
asked by Not putting it 
geography
What three continents does the Artic Circle pass through? My answer is North America, Europe and Asia. Am I correct??
asked by Reed 
biochemistry
calculate the mass of sodium benzoate that must be added to 1 litre of 0.4M benzoic acid with Ka=6.4 multiplied by 0.00004 solution to a buffer at pH 4.5
asked by sammyt 
math
4+(4)=0
asked by AnOnYmOuS1 
Math
A line from the top of a cliff to the ground passes just over the top of a pole 5.0 ft high and meets the ground at a point 8.0 ft from the base of the pole. If the point is 79 ft from the base of the cliff, how high is the cliff? Round to the nearest
asked by Victoria 
math
08=8
asked by AnOnYmOuS1 
geography
The island of Bermuda is a colony of what nation? My answer is The United Kingdom. Is this correct?
asked by Reed 
math
0(8)=8
asked by AnOnYmOuS1 
Chemistry
We did a lab. The reaction of zinc and iodine. We put 1 g of zinc with 1 g of iodine.. and used alcohol. Is the equation Zn + I2 > ZnI(2)? The moles of Zn atoms consumed were .003 mol. The moles of I atoms consumed were .004 mol. The class got a ratio
asked by Morgan 
math
28=6
asked by AnOnYmOuS1 
molal (again)
i tried to solve it on my own but im confused about the last part, this i what i have so far.. moles of glycerin= 50.0/92.10=0.54 molality=0.54/0.200=2.7 is that right? im a little confused about the numbers im supposed to use for step 3... this was the
asked by lisa 
math
plz help! can any thing go in to 34 thx for your help!
asked by ST 
English
We will be seeing it on our field trip to Philadelphia. Would the complete predicate be will be seeing it on our field trip to Philadelphia and the verb be will be seeing?
asked by Anonymous 
Europe
what role did the geography of Europe play in the development of and ways of life in these towns?
asked by joe 
Health Education
i added all the references at the end of my report. and my teacher wrote that all of them must be referenced to in the report. Now i have another question: how can i reference this? i said 'the powerpoint was created utilizing different sets of data from
asked by Beauty 
chemistry
Calculate the amount of heat required to raise the temperature of a 16 g sample of water from 5°C to 12°C. Round to the correct number of sig figs. I got 5e3 and it was wrong.
asked by Rebekah 
math
9(5)=4
asked by AnOnYmOuSh1 
math
5(5)=0
asked by AnOnYmOuS1 
math
7+(8)=15
asked by AnOnYmOuS1 
History (grade 5)
explain the connection between european exploration of north and south amwerica and international trade? is there any connections to begin with?
asked by Bobby 
geometry
find PD if the coordinate of P is 7 and the coordinate of Dis 1
asked by keke 
history
what do they mean by write the relationship between dutch or Portuguese empires and the pursuit of increased international trade? I don't understand the question??
asked by Bobby 
physics
In the javelin throw at a track and field event, the javelin is launched at a speed of 29 m/s at an angle of 35° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes. How
asked by Xavier 
Help please? Math!
Let W represent the width of a rectangle, the length if 7cm more than the width. I have to write the answer in a algebraic expression, but I don't know how too Here is the question: 1. 7cm less than twice the width?
asked by Not putting it 
Language Art
Would "Philosophy" be a good synonym for "thinking"? Thanks
asked by Shadow 
MATH
Is there a shorter way to answer this question? Radio waves ina vacuum travel a distance equal to seven times the circumference of earth in 1 s. If the radius of Earth is 6 318 138.7m, what is the speed of the radio waves in kilometres per hour?
asked by Anonymous 
chemistry
What is the concentration of each type of ion on a 0.010 molar solution of Lithium sulfate (aq)?
asked by Alphonse 
CHarter One Bank (Personal Finance)
For Personal Finance I am suppose to answer some questions about the bank Charter One. I called my local bank and they are closed so I was wondering if any of you guys knew these answers? ATM's conveniently located? Fees? How Much? Interest paid on account
asked by Sarah 
chemisty
What mass of iodine contains the same number of atoms at 25.0 g of chlorine?
asked by Anonymous 
math
f(x) = x^2 + 10x + 24 =(x^2 + 10x)+ 24 =(x^2 + 10x + 25  25) + 24 f(x) =(x+5)^2  1 Vertex: (5, 1) How do you sketch this? I know that in the graph one of the coord is (5, 1) but how do I find the others in order to make a parabola? :
asked by John 
History (grade 5) please help"
explain the connection between european exploration of north and south amwerica and international trade? is there any connections to begin with? Is it, South Americais geographically bordered on the west by the pacific ocean and wast by countries including
asked by Bobby 
physics
A car brakes, changing from 18 m/s to 6.0 m/s in 3.0 seconds. How far did it travel in this time?
asked by Kyle 
math
find the domain & range of each relation & identify any relations that define functions y=3(x+1)^25
asked by confused 
math factoring
6x45t3200t163000 how do you factor this it cant be done by common factor or decomposition method..help!!
asked by Bobby 
us history
different labor systems predominated in various regions of british americ. how did the economy of each region help determine its labor system?
asked by Anonymous 
Math/116
1. Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g) = 3.5 (g) a) Find C(2) 3.5 x 2 = 7 b) Find C(5) 7/5 = 1.4 would this be correct ?
asked by Sydney 
chemistry
Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 > MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2
asked by sarah 
math
I don't qite understand this question has written my homework...I need help. State ALL of the families to which the number 4 belong? What does she mean I never heard of that b4 is she talkin about multiplying or so?
asked by sherkyra 
8th grade
Joe is stacking four cubes on top of each other and painting the outside of the stack. how many sides will be painted, not counting the bottom which is on the ground.
asked by Sarah 
Language Arts
I'm writing an essay on the topic " Contributing to the community" and I was wondering what you guy think if I start my first sentence like this. Everyone in their life had made some worldshattering contributions to the community.These significant
asked by Shadow 
geography
Which four continents touch the Indian Ocean? Africa, Asia, Australia, and Antarctica. Is this correct?
asked by Reed 
geography
What part of a map tells the relationship of distance shown on the map to real distance on the Earth? My answer is a map scale. Is this correct?
asked by Reed 
math
what are2 ways to write 67,000 in word form
asked by angel 
Last question, I swear! Math!
Write an equation or inequality. 1. The difference of 73 and a number x is 17 .. How would I write one for this? I really don't understand.
asked by Not putting it 
Math
What is the format for this problem: Move two coins from one purse to the other so that both ourses A and B hold the same amount of money.
asked by CeCe 4gr 
Statistics
Which test determines if there is a difference between the mean of a group and proposed standard value? Paired ttest Ftest One Sample ttest One way ANOVA Two sample ttest
asked by Beata Chmielewska 
Chemistry
Explain why the melting points of ionic compounds and molecular compounds differ? The melting points of ionic compounds and molecular compounds differ because.... A tremendous amount of energy (heat transfer) is required to separate the tightly bound ions
asked by Anonymous 
Statistics
The null hypothesis is: a. Always contains a > in the equation b. Not needed c. The alternative hypothesis d. The hypothesis of no difference e. Always contain a < in the equation
asked by Beata Chmielewska 
Statistics
An individual is reviewing a stable, normal process that has a Cq=3 and a Cpk =5. In order to achieve a capable process, what must be done? a. shift mean only b. reduce variation only c. reduce variation and shift the mean d. it already capable process e.
asked by Beata Chmielewska 
Geography
what are 3 products that canada exports to portugal
asked by Sheila 
math
What property of addition is shown by 5+2=2+5 Associative Distributive commutative or Identity
asked by cody 
English
Devil in the White City Chicago World's Fair benefits and downfalls... I need to write an essay on The Devil in the White City. I read the book and i have a pretty firm grasp on it, but im still having trouble finding events and ideas that occur that
asked by Walter 
chem
What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper my final answer is 74.08 is this correct
asked by vanessa 
Statistics
Which of the following is true about Standard Deviation? a. It is the maximum value minus the minimum value b. It a range of values c. It the average d. It a measure of spread e. It measures location
asked by Beata Chmielewska 
chemistry
Which of the following compounds would result in an exchange reaction if mixed in an aqueous solution with (NH4)2S? a. SrCl2 b. Li2C2O4 c. CH3CO2Ag d. MnSO4 I don't know what to look for.
asked by Morgan 
Algebra 1
As a team we are having trouble coming up with the same ordered pairs for the following 7x+6y=15 and 7x+y=27. We came up with (17,8) can you show your steps please
asked by Team A 
macroeconomics
suppose that congress enacts a significant tax cut with the expectation thatthis action will stimulate sggregated demand and puch the real gdp in the short run. in gact, however, neither real gdp now the price level changes significantly as a result of the
asked by aimee 
Chemistry
he experiment is a sequence of Chemical Reactions. Procedure part A preparation fo copper (II) Hydroxideget a solution of copper(II)nitrate. measure 25ml of solution. to blue solution add 2mL of concertarted NaOH while stirring. Let mixture settle and use
asked by Missy For Bob 
6th grade
Say you are at a bike shop. They sell tricycles, bicycles and unicycles. If there is a total of 150 wheels and 70 seats. If there are twice as many bicycles as tricycles how many of each type of bike do you have?
asked by Susie 
Physics
A 3.0kg block is at rest on a horizontal floor. If you push horizontally on the 3.0kg block with a force of 12.0N it just starts to move. What is the coefficient of static friction?
asked by Jake 
Chemistry
At one stage you add phosphate ion to the ractions sequence. where exactly does this phosphate end up? It is not weighed in with the copper at the end. Reaction sequence: Cu(NO3)2 = Cu(OH)2 =CuSO4 = Cu3(PO4)2= CuCl2=Cu
asked by Missy 
Chemistry I
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 24.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)
asked by Robbie 
physics
A sled with a weight of 200N is being pulled from rest by a force of 40 N across ice which has a coefficient of kinetic friction of ,070. If air resistance is negligible, find the acceleration of the sled. How far will the sled slide in 6 Sec?
asked by K. Polska 
Chemistry
At one stage you add phosphate ion to the ractions sequence. where exactly does this phosphate end up? It is not weighed in with the copper at the end. Reaction sequence: Cu(NO3)2 = Cu(OH)2 =CuSO4 = Cu3(PO4)2= CuCl2=Cu
asked by Missy 
Music appreciation
What muscial form preceded the sonata allegro form that was often considered dramatic and rewarding.
asked by Kelli 
chemistry
capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)
asked by Rebekah 
Chemistry I
25.0 mL of ethanol (density = 0.789 g/mL) initially at 4.2°C is mixed with 35.7 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
asked by Robbie 
high school
which of the following is the best reason for a home inspector to have a set procedure for the inspector process.
asked by Mia 
Chemistry I
A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of heat. If its initial temperature was 32.5 °C, what is its final temperature? (density of aluminum = 2.70 g/cm3
asked by Robbie 
11th grade
A 36.5 g of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 10 grams. What was the percent iron in the sample of ore?
asked by Anonymous 
Geography
when it is noon in ottawa it is dash in portugal
asked by Sheila 
management
Explain the contributions of Taylor, the Gilbreths, and Gantt to the theory of scientific management.
asked by RT 
Accounting
I am attempting to complete a budget matrix. Is a consultant listed as a functional budget item or a lineitem budget? Are indirect costs listed as a functional budget item or a lineitem budget? My understanding from the reading is that I have 1)
asked by Sarah 
chem
Anhydrous aluminum oxide can be reduced to aluminum according to thisa chemical equation: 2 Al2O3 (s) > 4 Al (l) + 3 O2 (g) Calculate the mass of aluminum oxide reacted if 91.4 g of Al was produced and the percent yield was found to be 89.3%
asked by vanessa 
management
Compare bureaucratic and administrative management.
asked by RT 
physics
a plank will break if a forces of 350 N is applied to its center.What is the largest weight it can support if it is titled to an angle of 35degrees?
asked by jazmyn 
chem.
Calculate the amount of heat required to raise the temperature of a 25 g sample of water from 5°C to 10.°C. i got 523 then rounded it to two sig figs 520 but it said it was wrong
asked by Rebekah 
algebra
Mr.Yakima teaches science classes, with the same number of students in each class.Of those tudents are 80 sixth graders and 40 are fifth graders. write an equation to model this situation using the variable n. What does your variable represent?
asked by sjlslkdj 
Algebra II
What's the solution for 5 < 1  2k < 3? Is it 3 > k >1 or is it 1 < k < 3? I'm not sure if you have to switch the order of the numbers also when you're dividing it by a negative number..
asked by anna 
Science
Give an example of how animal behavior would chnge if the Earth become hotter in the future.
asked by Robert 
4 grade
draw 2 example of rectangle and trapzoid
asked by Anonymous 
chemistry
what are isotopes???
asked by Anonymous 
science
A crate is resting on the back of a truck and has a coefficient of of friction of 0.45. What is the maximum acceleration that the truck can undergo before the crate starts to slide off the back of the truck.
asked by Cassey 
ALGEBRA
QR = R , SOLVE FOR R
asked by michael 
English
Thank you for your last corrections. Here are some more sentences I need you to check. Is the tense choice correct? 1)At this point Marlow starts describing Kurtz to the other sailors though he hasn’t met him yet. 2) Kurtz spoke English to him since his
asked by Franco 
Calculus
find volume of solid obtained by rotating region bounded by curves y=x and y=sq.rt x, about line x=2
asked by Abby 
geometry
Find the measure of each angle of the supplementary angles, given the measure of angle 1 = (10x + 53) and the measure of angle 2 = (5x  8).
asked by Anonymous 
physics
Water flows into a swimming pool at a rate of 9.59 gal/min. If the pool dimensions are 30.9 ft wide, 47.6 ft long and 13 ft deep, how long does it take to fill the pool? (1 gallon = 231 cubic inches). Answer in units of minutes.
asked by brittney 
daycare concern
Ms. Sue need your help in setting up a curriculum for my 1  3 age group in my daycare please?
asked by action 
English
1) He also explained to him that the natives had attacked the steamer because they didn’t want Marlow to leave. He himself was enthusiastic about Kurtz because he had enlarged (or broaden, widen) his mind. 2)He described him as a brilliant talker, a man
asked by Franco 
Math
What is the value of the second 5 in 1.555?
asked by Barb 
Spanish, posted Sept. 14
Please go back to your original post for additional information. Please also post a name! Sra
asked by SraJMcGin 
10th grade Chemistry
The most reactive group of the nonmetal are the?
asked by Janelle 
Math
what is are some free websites that can give me rational and irrational practice?
asked by Kelly 
math
how to simplify 2x^3x3/(x+1)
asked by mike 
english/ grammar
what is a concrete noun?
asked by kevin 
math
write each number in decimal form: (a) two hundred thirty and seven tenths .... .... .... please help!! thank you very much!
asked by raluca 
chemistry
Compare the three types of bonds based on what happens to the valence electrons of the atoms
asked by chris 
Physics
A particle moving initially at 4 m/s in the positive x direction is given an acceleration of 3 m/s^2 in the positive y direction for 2 seconds. What is the magnitude and direction of the particle's velocity after 2 seconds? If the particle was located at
asked by Jess 
To:Ms.Sue
Yes sorry, I kind of exaggerate when I write. May I ask how is "Everyone" a singular? Don't singular mean one only? Thanks
asked by Shadow 
Physics
Is there something that there is a googol of?
asked by lola 
Quantative Reasoning
Explain what the CPI is and do you think that the CPI accurately measures the rate of inflation?
asked by Anonymous 
tanks
thank you ms sue!!
asked by raluca 
Daycare concern
Ms Sue Thanks so much
asked by action 
Math
Solve the problem. Round to the nearest tenth, if necessary. A longdistance runner runs 5 miles directly south and then faces due east and runs another 7 miles. How far is the runner, in a straight line, from his starting point?
asked by Missy 
Calculus
let V be volume of the solid obtained by rotating about the yaxis the region bounded by y=sqrtx and y=x^2. find V both by slicing and by cylindrical shells. in both cases, draw a diagram to explain your method. I'm SO stuck!
asked by Abby