Sunday
September 14, 2014

# Homework Help: Health: First Aid

Recent Homework Questions About First Aid

A.P English
Would the use of the phrase "wore her out" regarding a certain character throughout the first 100 or so pages of the book count as parallelism?
Monday, April 28, 2014 at 7:53pm

physics
Your vertical spring accelerometer has a 40 g mass hanging from it. You climb aboard the roller coaster that starts at rest and watch the accelerometer read 0.45 for 5 seconds while descending the first peak and then change to 2.8 for 2.5 seconds while going through the bottom...
Monday, April 28, 2014 at 5:32pm

Engineering Physics
which of the following is equal to the angular acceleration of a disk? a)first time derivative of angular position b) second time derivative of angular position
Monday, April 28, 2014 at 5:47am

computer literacy
1. Which of the following options would return a true statement for the sentence: The sky is bluest early in the morning. (A) Sky and blue Sky not morning Sky or dark Sky and evening 2. Famed science fiction writer H. G. Wells once envisioned something to store vast amounts of...
Sunday, April 27, 2014 at 8:27pm

Scoiolgy
Mattie is a new sociology professor at the local college. During her first lecture, she noticed that some students were yawning. Based on her interpretation of the students yawning, Mattie has decided she is a boring teacher. This is an example of the process referred to as: A...
Sunday, April 27, 2014 at 6:52pm

Science help
14. The energy role of the first organism in a food chain is always a(n) ___________. (1 point) 15. Water is a(n) __________ factor in all ecosystems that all living things require. (1 point) 16. ___________bacteria carry out the conversion of gaseous nitrogen to a ...
Sunday, April 27, 2014 at 3:35pm

Algebra 1
Can you please check my work and help me with the parts that I don't understand? For each event, choose the most appropriate term and solve the problem. 1. In a sweepstakes with nine hundred entries, the first winner selected receives the grand prize, the second receives ...
Sunday, April 27, 2014 at 1:59pm

math
Steve earned scores of 96 and 87 on his first two exams. What will his average grade be if he gets a 72 on his third exam?
Sunday, April 27, 2014 at 7:22am

CALCULUS
two birds are flying along in 3-space. At time t, the first bird is at the point (x,y,z) on the line
Sunday, April 27, 2014 at 2:33am

Physics
A 1900 kg Oldsmobile traveling south on Abbott Road at 13.6 m/s is unable to stop on the ice covered intersection for a red light at Saginaw Street. The car collides with a 3854 kg truck hauling animal feed east on Saginaw at 9.8 m/s. The two vehicles remain locked together ...
Saturday, April 26, 2014 at 11:04pm

Chemistry URGENT
A student heated a hydrated salt sample with an initial mass of 4.8702 g, After the first heating, the mass had decreased to 3.0662 g (two part question) 1. if the sample was heated to constant weight after reheating, what is the minimum mass that the sample can have after the...
Saturday, April 26, 2014 at 5:23pm

math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of this investment. what is...
Friday, April 25, 2014 at 11:18pm

Consider the area between the graphs x+2y=9 and x+6=y^2. This area can be computed in two different ways using integrals First of all it can be computed as a sum of two integrals as integral f(x)dx from a,b + integral g(x)dx from b,c I got a=-6 b=3 c=19 but what does f(x)=? g(...
Friday, April 25, 2014 at 8:27pm

MATH STATS URGENT
The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
Friday, April 25, 2014 at 3:38pm

Physics
Light of wavelength 630 nm is incident on a long, narrow slit. a)Determine the angular deflection of the first diffraction minimum if the slit width is 0.020 mm. b)Determine the angular deflection of the first diffraction minimum if the slit width is 0.20 mm. c)Determine the ...
Friday, April 25, 2014 at 1:33pm

Chemistry URGENT
I am not good with math problems. I need help with these two problems. I'm not sure what equations to use. please help. A student heated a hydrated salt sample with an initial mass of 4.9702 g. After the first heating, the mass had decreased to 3.0662g. 1. if the sample ...
Thursday, April 24, 2014 at 11:36pm

math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of this investment. what is...
Thursday, April 24, 2014 at 11:33pm

MATH STATS URGENT
The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
Thursday, April 24, 2014 at 11:29pm

Math
The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
Thursday, April 24, 2014 at 9:40pm

Math
A marble is drawn from a bag containing four white, three red, and two blue marbles. Without replacing the first marble, a second marble is drawn. a. Draw a two stage outcome tree for this experiment. b. Turn the outcome tree into a probability tree diagram by labeling all of ...
Thursday, April 24, 2014 at 9:06pm

Math
1) When a pendulum 0.5m long swings back and forth, its angular displacement Ɵ from rest position, in radians is given by Ɵ=1/4sin((pi/2)t), where t is the time, in seconds. At what time(s) during the first 4 s is the pendulum displaced 1 cm vertically above its rest...
Thursday, April 24, 2014 at 8:46pm

math
Five athletes are chosen to represent their sports at the school pep rally. Two girls and three boys are selected to walk into the gymnasium. If a girl must enter first and the other girl must be the last one to enter, how many different ways can the athletes enter the gym?
Thursday, April 24, 2014 at 7:01pm

science
1. The image above shows the Andes Mountains. Which of the following processes formed this feature? (1 point) (pic of Andes Mountains) Glaciers deposited sediment. Plates converged together to form the mountains. Plates pulled apart and released magma. Sand dunes hardened and ...
Thursday, April 24, 2014 at 3:58pm

Social Studies
Can somebody please check my answers? Thank you :) 1. Which is a key factor that affects the climate of mountainous Latin America? a. snow b. El Niño c. elevation ** d. sea breezes 2. Which statement best describes the economies of Central America? a. Central America&#...
Thursday, April 24, 2014 at 12:33pm

Math
Mr. Fairfax ordered 3 large pizzas for a class party. Group A ate 6/6 ( that should look like a fraction) of the first pizza, and Group B ate 8/6 of the second pizza. Did Group A or B eat more pizza? Then later Group C ate all remaining slices of pizza. What fraction of the ...
Thursday, April 24, 2014 at 11:16am

math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of this investment. what is...
Thursday, April 24, 2014 at 8:40am

Language Check
Choosing verbs that agree in Number with Their Subjects: 1. Almost everybody (has,have) played games that originated in faraway places. MY ANSWER: HAVE 2. Few of these games (is,are) difficult to play. MY ANSWER: ARE 3. Pictures on ancient Greek pottery (show,shows) people ...
Thursday, April 24, 2014 at 7:21am

Quantitative Methods
1. Management of Sundown Rent-a-Car (see Problem 8-8) has decided that perhaps the cost during the six-month period is not the appropriate Cost to minimize because the agency may still be obligated to additional months on some leases after that time. For example, if Sundown ...
Thursday, April 24, 2014 at 1:59am

math
Wyatt earned $316.50 each week for the first 3 weeks of February and$425.25 the last week of February. How much money did Wyatt earn in all in February ?
Wednesday, April 23, 2014 at 11:40pm

physics
First start with an isothermal expansion at 2.0 atm from 1.0 L to 4.0 L. If this now is adiabatically compressed back to its original volume, what is the change in internal energy here? Also what are some examples of these processes
Tuesday, April 22, 2014 at 10:30pm

math
Marnie practiced her basketball dribbling. After two tries she had bounced the ball 88 times. On the second try she had 2 fewer bounces than 8 times the number of bounces she had on the first try.How many bounces did she have on the second Try
Tuesday, April 22, 2014 at 8:48pm

Math
Elisa has 50 invitations to distribute to her neighbors over three days. She distributes 12 on the first thing and, i, invitations on the second day. Which expression can best be use to find the number of invitations left to distribute on the third day
Tuesday, April 22, 2014 at 6:34pm

a name i can use for the elizabethan time period first and last name
Tuesday, April 22, 2014 at 6:18pm

Math
The distance d1 in miles, a small plane is from its final destination is given by d(t) = 250 – 100t, where t is the time, in hours, remaining for the flight. Find and discuss the meaning of the intercepts of the graph of the function. (You must first solve and graph this...
Tuesday, April 22, 2014 at 6:16pm

Algebra1
Find the sum of the first 33 terms of the arithmetic sequence whose first term is 3 and whose 33rd term is -253.
Tuesday, April 22, 2014 at 5:15pm

Chemistry pH
What is the pH of 4.7 M CH3NH3Cl. mehyl-amine, CH3NH2, Kb = 4.4 × 10-4. Do I find Ka first then take the -log(Ka) to find the pH of 4.7M CH3NH3Cl? or do I need to make I.C.E. table?
Tuesday, April 22, 2014 at 3:28pm

Physics 1
A cart with mass 340 g moving on a frictionless linear air track at an initial speed of 1.5 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision, the first cart continues in its original direction at 0.42 m/s. (a) What is ...
Tuesday, April 22, 2014 at 2:51pm

statistics
We guess, based on historical data, that 30% of graduating high-school seniors in a large city will have completed a first-year calculus course. What's the minimum sample size needed to construct a 95% confidence interval for a proportion with a margin of error of 2.5%?
Tuesday, April 22, 2014 at 11:56am

Networking
firm is assigned the network part 128.171. It selects a 10-bit subnet part. a) Draw the bits for the four octets of the IP address of the first host on the first subnet. (Hint: Use Windows Calculator.) b) Convert this answer into dotted decimal notation. c) Draw the bits for ...
Tuesday, April 22, 2014 at 10:17am

math
michael purchased a certain number of one stock for a total of $176. the second stock was selling for$5 less per share. michael could have bough 5 more shares of the second stock for the same amount of money. how many shares of the first stock did michael purchase? how much ...
Monday, April 21, 2014 at 10:10pm

Math (Number Theory)
the following two lines indicate another way to derive the formula for the sum of the first n integers by rearranging the terms in the sum. Fill in the details. 1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+..​. =(1+n)+(1+n)+(1+n)+...
Monday, April 21, 2014 at 9:01pm

SS - PLLLSSSSS HELP ASAP (check my work)!!!!!!!!!!
1. The admission of Missouri as a slave state was controversial in the Senate because the Senate was pro-slavery. it would create sectionalism. it would upset the balance.*** the Senate was anti-slavery. 2. The main topic of the Lincoln-Douglas debates was Western territories...
Monday, April 21, 2014 at 5:29pm

1.B 2.D 3.B 4.C 5.D 11.What contribution did Simón Bolivar and José de San Martín make to the history of the region? A. They served as prominent criollo leaders. B. They led the revolutions for independence. C. They instituted the first republican ...
Monday, April 21, 2014 at 4:31pm

math
the first three terms of a GP are the first, fourth and tenth terms of an AP. given that the first term is 6 and that all the terms of a GP are different, find the common ratio.
Monday, April 21, 2014 at 4:27pm

social studies
1. The admission of Missouri as a slave state was controversial in the Senate because the Senate was pro-slavery. it would create sectionalism. it would upset the balance.*** the Senate was anti-slavery. 2. The main topic of the Lincoln-Douglas debates was Western territories...
Monday, April 21, 2014 at 4:19pm

1.B 2.D 3.B 4.C 5.D 11.What contribution did Simón Bolivar and José de San Martín make to the history of the region? A. They served as prominent criollo leaders. B. They led the revolutions for independence. C. They instituted the first republican ...
Monday, April 21, 2014 at 1:22pm

physics
Two speakers are both emitting sounds, the first with an intensity level of 1 x 10^{-11} \frac{W}{m^2} and the second with an intensity of 1 x 10^{-8} \frac{W}{m^2}. What is the db level of the first? \beta = What is the difference in the decibel (db) level of the two sounds...
Monday, April 21, 2014 at 2:57am

Concision Rewrite the sentences using concision techniques (replacing phrases with words, combining sentences, etc.) discussed in class to simply these wordy sentences. 1. Critics cannot avoid employing complex and abstract technical terms if they are to successfully analyze ...
Sunday, April 20, 2014 at 11:27pm

us history
Can you check if my answers are correct? When Jewish leaders proclaimed the independent state of Israel in 1948, the USA A. refused to recognize it until democratic elections were held B. broke diplomatic relations with most Arab states C. recognized the new state immediately ...
Sunday, April 20, 2014 at 8:58pm

Physics waves
I am stuck with both of these questions. Thanks in advanced! 1. If one tone has a frequency of 110 Hz and another tone is played near it with a tone of 113 Hz, the beat frequency is ___ Hz 2. A standing wave has 3 nodes in a string 20 m long. The wavelength of this wave is __ ...
Sunday, April 20, 2014 at 7:16pm

1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstration" a) ...
Sunday, April 20, 2014 at 6:22pm

Probability
Let Θ be an unknown random variable that we wish to estimate. It has a prior distribution with mean 1 and variance 2. Let W be a noise term, another unknown random variable with mean 3 and variance 5. Assume that Θ and W are independent. We have two different ...
Sunday, April 20, 2014 at 3:44pm

math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of this investment.
Sunday, April 20, 2014 at 11:04am

Cohesion and Coherency/Sentence Variety This short paragraph has two distinct problems. First, to improve cohesion, rewrite these sentences so that old information is at the beginning of each sentence. Second, combine sentences and/or provide transitions to improve the ...
Sunday, April 20, 2014 at 12:51am

Math
a 120 foot long rope is cut into 3 pieces. the first piece of rope is twice as long as long as the second piece of rope. the third piece of rope id 3 times as long as the second piece of rope. what is the length of the longest piece of rope
Saturday, April 19, 2014 at 3:48pm

chemistry first year
20L of N2 and 100 L of H2 are reacted to produce NH3 what is the decrease in the V of the mixture N2+3H2--> 2NH3 Ans me with reason
Saturday, April 19, 2014 at 6:14am

chemistry first yera
A 0.4 g sample of monobasic acid requires 16cm3 of 0.1 mol per dm3 of NaOH for complete neutralization . what is the relative mass of the acid?? Plz ans me urgent
Saturday, April 19, 2014 at 6:09am

Physics
1) Determine the extension of the trampoline when a 200 kg person stands on the trampoline. (k=12000) 2) If on the first push, the trampoline went 8.0 cm below its position in part 1, find the average force exerted by his leg muscles? For the first question i was able to get 0...
Friday, April 18, 2014 at 10:11pm

statistics
a box contain five silp of paper marked 1,2,3,4and5 tow silp are selected without replacement,list the possible vaule for each of following random variable the sum of two number on two silp the difference between the first and second number
Friday, April 18, 2014 at 9:17am

cost accounting
Marvin’s Motors Company (MMC) manufactures outboard motors for use on small to medium sized boats. MMC produces three models: the Standard, the Deluxe and the Performance. The company uses a normal job costing system with manufacturing overhead applied on the basis of ...
Friday, April 18, 2014 at 8:18am

Spanish
Sra. can you please correct my answers? I am so grateful for your help! Part I Answer the questions using the "PRESENT PROGRESSIVE." 1. ¿Qué estáis estudiando ahora? Estoy estudiando español ahora 2. ¿Con quiénes están...
Thursday, April 17, 2014 at 11:18pm

Math
Food Express is running a special promotion in which customers can win a free gallon of milk which their food purchase if there is a star on their receipt. So far, 147 of the first 156 customers have not received a star on their receipts. What is experimental probability of ...
Thursday, April 17, 2014 at 9:27pm

math
{Positive multiples of 4} (Enter your answers as a comma-separated list. Enter only the first three values of this set.)
Thursday, April 17, 2014 at 6:40pm

Probability
1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...
Thursday, April 17, 2014 at 3:07pm

science
if you wanted to consult the geologic time scale for when the first vertebrates evolved, where would you look?
Thursday, April 17, 2014 at 3:03pm

comprehending/english
The question is What sources cited or quoted, and if so, to what effect? This is the paragraph: A few months back, while I was giving a workshop on LGBTQIA identities and safety, someone brought up the George Zimmerman trial. In the midst of our discussion, a white participant...
Thursday, April 17, 2014 at 11:29am

Math
The GoodMentalHealth Insurance Company has determined the number of new clients a psychologist gets per month and their respective probabilities, as shown in the table below: Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The probability of ...
Thursday, April 17, 2014 at 10:10am

College Chemistry (DrBob222)
The decomposition of HCO2H follows first-order kinetics. HCO2H(g) CO2(g) + H2(g) The half-life for the reaction at a certain temperature is 44 seconds. How many seconds are needed for the formic acid concentration to decrease by 73%?
Wednesday, April 16, 2014 at 8:09pm

Chemistry - Science (Dr. Bob222)
Consider the kinetic data given in the table below for the first order reaction: What is the value of the activation energy? A_2_--> 2A Expt. Initial [A2] Temp. Initial Rate mol/L (°C) [A2]·s–1 1 0.10 100 1.2 x 10–3 2 0.20 200 4.8 x 10–3 3 0.15 ? 4...
Wednesday, April 16, 2014 at 7:18pm

Chemistry - Science (Dr. Bob222)
Consider the kinetic data given in the table below for the first order reaction: What is the value of the activation energy? A_2_--> 2A Expt. Initial [A2] Temp. Initial Rate mol/L (°C) [A2]·s–1 1 0.10 100 1.2 x 10–3 2 0.20 200 4.8 x 10–3 3 0.15 ? 4...
Wednesday, April 16, 2014 at 7:02pm

English
My Essay: A Mother’s Sense of Wonder To lose a loved one is very hard to bear, but to lose a parent can be very heart-wrenching for a child at any age. Connie Schultz wrote “My Mom’s Wonderful, ‘Pinch Me’ Life,” which was published in 2012, in the...
Wednesday, April 16, 2014 at 6:43pm

Algebra 2
What is the sum of the first 10 terms of the sequence defined by an = 3n - 3?
Wednesday, April 16, 2014 at 12:44pm

Connexus
In the 1800s, it was believed women were good at working on projects to improve the community because  (5 points) women were better leaders than men. women were better planners than men. women were more emotional than men. women were more moral than men. 2. &...
Wednesday, April 16, 2014 at 12:30pm

Aerodynamics
A small wind tunnel is being built for studying insect flight. The first test section built has a uniform height h=0.1m and length ℓ=1m. During operation its walls are found to have boundary layers which effectively start at the inlet at x=0 (the BL growth is negligible ...
Wednesday, April 16, 2014 at 10:59am

Algebra
John walked 10 miles on Saturday. He walked twice as fast on the second 5 miles of his walk than he walked on the first 5 miles of his walk. Which expression represents the time he spent walking? Let x = John's speed on the first half of his walk.
Wednesday, April 16, 2014 at 12:35am

1. Michelle Kwan has become an inspiration to us all. 2. Is Sara the runner in the blue T-shirt? 3. I could have been a contender. 4. The winner of the spelling bee was Tracy. 5. The next speaker will be Mr. Gonzales. 6. Who was the fourteenth president of the United States? 7...
Tuesday, April 15, 2014 at 11:04pm

Identify the linking verb and the predicate nominative. 1. My partner for biology lab is Penelope. 2. Jason will be the next student council president. 3. Mrs. Furillo's favorite song is still "Night and Day." 4. Rocky Marciano was the world heavyweight boxing ...
Tuesday, April 15, 2014 at 10:26pm

English
When preparing to write a summary, you should: A. highlight all main and major ideas after thoroughly reading the article. B. highlight descriptive language and examples. C. take careful notes as you read the article the first time. D. complete outside research. A
Tuesday, April 15, 2014 at 9:20pm

aeronautic
A small wind tunnel is being built for studying insect flight. The first test section built has a uniform height h=0.1m and length ℓ=1m. During operation its walls are found to have boundary layers which effectively start at the inlet at x=0 (the BL growth is negligible ...
Tuesday, April 15, 2014 at 6:46pm

Social Studies
1. What did you enjoy as a kid? Answer: I liked to hunt, study the art of war, and even shoot a firearm at times. Believe it or not when I was 14 I tried to sign on to a British war ship to be a powder monkey, but my mom wouldn't allow me to be part of it. 2. Can you tell ...
Tuesday, April 15, 2014 at 6:33pm

statistic
Listed below are the ages of actresses and actors at the times that they won Oscars for the categories of Best Actress and Best Actor. The ages are listed in chronological order by row, so that corresponding locations in the two tables are from the same year. (Notes: In 1968 ...
Tuesday, April 15, 2014 at 1:10pm

Calculus II
Compute the first 5 terms of the sequence: {b(n)}n=1-> infinity = nsqrt(6n) + (5/6)^n. ((that is:(Bsub(n))from n=1 to infinity = nth root of 6n + (5/6)raised to n.)) If the sequence converges, find the limit.
Tuesday, April 15, 2014 at 1:08pm

English
Choose the correct sentence. A. Whom do you think you are? B. Give the ledger to Mr. Bon or me. C. Either me or you should win first place. D. The secret is between Joe and I. B
Monday, April 14, 2014 at 9:19pm

HELP!
Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.
Monday, April 14, 2014 at 8:00pm

Written Communication
• Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Write in your own words, from your ...
Monday, April 14, 2014 at 6:05pm

Calculus II
Compute the first 5 terms of the sequence: {b(n)}n=1¨‡ = nã6n + (5/6)^n. ((that is:(Bsub(n))from n=1 to infinity = nth root of 6n + (5/6)raised to n.)) If the sequence converges, find the limit.
Monday, April 14, 2014 at 5:44pm

physics
Two wires are anchored at both ends. Wire 1 has a mass of 105 grams and a length of 6.9 m. Wire 2 has a mass of 60 grams, a length of 20 m, and a tension of 143 N. What must be the tension in Wire 1 if its third harmonic is to equal the first overtone of Wire 2? T_{wire1} =
Monday, April 14, 2014 at 5:20pm

Math
Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 300t^2/(t^3 + 32)+5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins. Find the ...
Monday, April 14, 2014 at 5:07pm

trying to understand math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of$9.00 for the month of March and averaged 125 ...
Monday, April 14, 2014 at 3:47pm

Social Studies
I am the Star Reporter who is going to visit George Washington at his home at Mount Vernon during the years of 1759-1774. I am interviewing him about his political and personal views, activities, goals, and predictions. Develop 10 questions to ask President Washington. 1. What...
Monday, April 14, 2014 at 12:29pm

Chemistry
A 0.170-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2 ions at equilibrium? Assume the formation constant (Kf) of Co(NH3)62 is 5.0× 1031 M–6. I don't really know how to start. At first I thought about setting ...
Monday, April 14, 2014 at 5:04am

math
There are 216 couples competing in a dance contest.After each half hour one-third of the contest-ants are eliminated. How many couples will remain eligible for the prize after the first hour? a. 24 b. 46 c. 48 d. 96 e. 98 please answer and explain
Sunday, April 13, 2014 at 5:12pm

LA
In all of recent American history, there has been no worse river flooding than what occurred on the Mississippi River between late June and the middle of August in 1993. Record flooding affected communities from Minnesota to Missouri. Iowa and Illinois joined those states as ...
Sunday, April 13, 2014 at 2:00pm

Geometry
Directions: Find the measure of one interior angle in each polygon. The first given is a PENTAGON. (that's all) I am drawing a blank!
Sunday, April 13, 2014 at 12:55pm

math
Julia had 150 fewer bonus points than Kelly.Bothgirls used tthe same number of bonus points. Julia was left with 1 out of 2 of her bonus pointand Kelly was left with 3 out of 4 of her bonus points.how many bonus did Kelly have at first
Sunday, April 13, 2014 at 7:09am

chemistry
The breakdown of p-nitrophenylphosphate at pH 2.6 is a first order hydrolysis process.. a) 12.5mmol of NPP were dissolved in 200mL of water at 77degrees celcius after 50mins the amount of NPP dropped to 10mmol. Calculate the average rate of this reaction and the rate constant ...
Saturday, April 12, 2014 at 5:33pm

math
There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the first marble chosen. What is the probability of Jamie picking two blue marbles
Saturday, April 12, 2014 at 12:18pm

World Civilization
1. In 1789, the National Assembly revoked the privileges of the aristocracy. This occurred in reaction to A. a peasant uprising. B. Louis XVI's withdrawal of troops from Paris. C. discontent among the poor people of Paris. D. the storming of the Bastille 2. What was ...
Friday, April 11, 2014 at 5:14pm

World History
1. In 1964, a loose union of Palestine refugees led to the formation of the Palestine Liberation Organization (PLO) under Yasir Arafat. What was the aim of the PLO? A. Driving Israel from East Jerusalem B. Establishing a Pan-Arab League C. Evicting Israel from Palestine D. ...
Friday, April 11, 2014 at 4:56pm

Science help!?
. If a kestrel eats a mouse that eats grass, the kestrel is a (1 point)producer. second-level consumer. first-level consumer. decomposer. 2. Which of the following best explains why a species of lizard is able to live in the desert but not in tundra regions? (1 point)High ...
Friday, April 11, 2014 at 4:53pm

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