Questions Asked on
June 12, 2013

chemistry
calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (MgBr2=184 g, Kf for water =1.80 K kg mol1)
asked by rahul 
Chemistry
Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of Na+ given that the average density of sea water is 1.02 g/ml.
asked by marie 
major parts of speech
select the incorrect statement. a. Major parts of speech are called content words because the carry most of the meaning fo communication b.Minor parts of speech are called function words because thay are concerned with meaning c. Major parts of speech
asked by Jim Collum 
identify tenses
1. The dou had been given the second best time slot. a. past perfect in the passive voice b. past continuous in the passive voice c. an infinitive in the passive voice Answer a 2. The promotional poster was designed by Zach a. past continuous in the
asked by Jim Collum 
prepositions
Preposittions can give information about a. location b. sequence c. method Answer all three are "true" 1.which sentence contains a compound preposititon a. Mark and David enjoyed the evening with Mary and Gwen. b. Mary will drive me home regardless of the
asked by Jim Collum 
Physics
A caterpillar climbs up a onemeter wall. For every 2 cm it climbs up, it slides down 1 cm. It takes 10 minutes for the caterpillar to climb to the top. What is the distance traveled? (Round the number to the nearest hundred.) >How do you calculate this?
asked by Isis 
Chemistry
WOULD THE VOLUME OF A 0.10M NAOH SOLUTION NEEDED TO TITRATE25.0ML OF A 0.10M HNO2 ( A WEAK ACID)SOLUTION BE DIFFERENT FROMTHAT NEEDED TO TITRATE 25.0ML OF A 0.10M HCL (A STRONGACID)SOLUTION?
asked by Naomie 
Math help
The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2 lb. Find the mean weight of Mr. Smith's ripe watermelons if only 5% weigh less than 18 lb. (Give your answer correct to one decimal place.) lb
asked by Tom614 
conditional sentence
1. If the sound system hadn't failed,last night's show would have been better a. this is a correct sentence using the 1st conditional form b. this is correct sentence using the 2nd conditional form C. this is a correct sentence using the 3rd conditional
asked by Jim Collum 
physics
a 0.055kg tennis ball approaches a tennis racket at 25m/s, stays in contact with it for 0.010s, is reversed in direction leaves the racket at 40m/s. what is the avg force between the racket and ball?
asked by lindsy 
statistics
An airline has a policy of booking as many as 17 persons on an airplane that can seat only 16. (Past studies have shown that only 89% of the booked passengers actually arrive for a flight.) Find the probability that if an airline books 17 persons, not
asked by Jana 
Math
Find the requested probability. P(Ā) if P(A) = 0.8 P(Ā) =
asked by Ronald 
verbs
While he was biking this morning, Zach had seen a small accident. A huge SUV ran a red light, and the oncoming sedan was unable to stop. Driving on Portland's narrow streets was dangerous and expensive. the small dent in the sedan would cost hundreds to
asked by Jim Collum 
English
She could have been an Olympic figure skater, but she has quit practicing. What is the linking verb in the sentence?
asked by Bob 
English
A. Zach enjoyed biking to his job at the Bistro Cafe'. the early morning ride gave some serenty to his hectic schedule. Opening the restaurant allowed him to get everything ready before the rest of the crew arrived. 1. In the above passage, an example of a
asked by Jim Collum 
maths
michael has 10 pairs of black socks,8 pairs of white socks&7 pairs of green socks everything is mixed in a drawer. as there is no light he is not able to identify the colour of the socks . how many of the socks will he have to take to match 1 pair
asked by rita 
physics
Whirl a rock at the end of a string and it follows a circular path. If the string breaks, the tendency of the rock is to (1pts)
asked by Anonymous 
Algebra
The graph below shows the expected monthly temperature of a certain city from April to August; the readings that correspond to the vertical lines are taken on the first day of each month. (For example, the expected temperature on April 1 is 70 degrees.)
asked by Ted 
chemistry
Zn(s) + 2AgNO3(aq) = 2Ag(s) + Zn(NO3)2 (aq) It would require_____g of zinc to produce 5.40g of silver.
asked by kris 
maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
asked by thabang 
pronoun
When he arrive at the cafe', Zach started preparing the scones, cookies,and muffins. While bread for sandwiches was purchased from a nearby bakery, he made these himself. Anybody looking for a stale pastry would have to try Starbucks next door. Quality was
asked by Jim Collum 
independent clauses
Select the correct statement a. an independent clause always contains a subject and verb b. an independent clause can be a complete sentence c.an independent clause can be as short as two words: a subject and a verb d. all are correct Answer d select the
asked by Jim Collum 
adjective
Biking is a cheap form of transportation, but walking might be safer. Driving is usually the fastest method of getting around. However, careless drivers with their distracting cell phones make the roads dangerous for everyone 1. In the above passage An
asked by Jim Collum 
maths
find the 20th term of an arithmetic progression whose 6th term is 3 and 14th term is 19
asked by thabang 
Chemistry
Sea water contains an average of 270 ppm of sulfate ion. Calculate the molar concentration of sulfate given that the average density of sea water is 1.02 g/ml. At first i tried assuming that density is 1.00 g/ml which is a common practice in ppm problems
asked by xavier 
identify tenses
1. Zach might be getting a good portable system next month. a. past tense with a modal b. present continuous with a modal c. future perfect in the passive voice answer a
asked by Jim Collum 
Math help
We have no ideal on how to start this problem, we have look for it on the charts, did not see. Please help Consider the following. (Give your answers correct to two decimal places.) (a) Find the standard score (z) such that the area above the mean and
asked by Sue 6 
Math
Choose a natural number between 1 and 100, inclusive. What is the probability that the number chosen is not a multiple of 4? (Enter the probability as a fraction.)
asked by Ronald 
conditional sentence
1. If the sound system hadn't failed, last night's show would have been better. a. this is a correct sentence using the 2nd conditional form b. this is a sentence using the 3rd conditional form Answer a. 3. if the club's manager agrees, they'll play a few
asked by Jim Collum 
English
1. Let's do some role play with this dialogue. You should take the part of a restaurant owner or a clerk. You should take the part of a customer. Taking turns ordering the food on the menu. Let's go... OK. now change the role/roles. You should start the
asked by rfvv 
Math help
We have no ideal on how to start this problem, we have look for it on the charts, did not see. Please help Consider the following. (Give your answers correct to two decimal places.) (a) Find the standard score (z) such that the area above the mean and
asked by Sue 6 
adjective
Which is the true statement? 1. Adjectives can answer the question: How? 2. Adjectives always precede the noun they describe. 3. A word which functions as an adjective in one sentence is an adjective in all sentences 4. none of the above is correct Answer
asked by Jim Collum 
conjunctions
select the correct statement 1. Conjunctions can be divided into two catergories: correlative and multiword 2.there are only three conjunctions used in English: and, but,and or. 3. conjunctions present students with difficulty in both meaning and usage 4.
asked by Jim Collum 
Thermodynamics
A lawnmower tractor engine produces 18hp using 40kW of heat transfer from burning fuel. Find the thermal efficiency and the rate of heat transfer rejected to the ambient. I converted the power to 13.24kW then found the efficiency by dividing 13.24kW by
asked by Kyle 
Math
What is the probability of getting a license plate that has a repeated letter or digit if you live in a state in which license plates have one numeral followed by three letters followed by three numerals? (Round your answer to one decimal place.)
asked by Ronald 
correct statement
A.Quality was important to the cafe's customers. 1.The word quality uses the indefinite artcle here because it is not specific 2. The word quality uses the definite article here because it is specific 3.The word quality uses no article here because it is
asked by Jim Collum 
math
From 70 feet away from the base of a tree on level ground, the angle to the top of a tree is 60⁰. What is the height of the tree? What is the approximate distance from the vantage point to the top of the tree, to one decimal point? (Assume that the tree
asked by D 
Grammar
Which of these words contain an inflectional morpheme? 1. Successful 2. Acted Answer "Acted" A. Is this a correct statement? A syllable is defined by it's sound, but a porpheme is defined by it's meaning Answer "yes"
asked by Jim Collum 
physical science
what are variables of the practical investigation.
asked by nomhle 
tenses
The club's amplification system needed to be adjusted continually a. past perfect in the passive voice b. past continuous in the passive voice c. an infinitive in a passive voice. d. simple past in the passive voice Answer c.
asked by Jim Collum 
math
What are six ways to name or describe the number 81?
asked by Anonymous 
chemistry
An atom emits a photon of wavelength 1.08 meters. What is the energy change occurring in the atom due to this emission? (Planck's constant is 6.626 × 10È³Ê joule seconds, the speed of light is 2.998 × 10§ m/s)
asked by Anonymous 
Statistics
Find the area of the shaded region where a = 2.15 and b = 2.12. Note: the graph may not be drawn to scale.
asked by Anonymous 
plurals
Is this a correct statement? Plurals, verb agreement, and modifiers are affected by coun vs non count issues. Answer "yes"
asked by Jim Collum 
Physics
A disk in your computer spins at 5400 rpm. If this disk turns through 12 revolutions before coming to stop, find the disks angular velocity acceleration. Also find the time it takes to stop.
asked by Kayla 
Finance
7. One year ago, you purchased a rare Indianhead penny for $14,000. Because of the recession and the need to generate current income, you plan to sell the coin and invest in Treasury bills. The Treasury bill yield now stands at 8 percent, although it was
asked by michael 
physics
How will changing charge change the equipotential at a distance of 2 meters? I honestly just don't even know where to start with this. If someone could at least point me in the right direction, that would be great!
asked by kayla 
Physical Science
Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is A. a stream of particles. B. a wave. C. heat.
asked by Lenny 
Intermediate algebra, concepts and graphs
a bullet is fired into the air with an initial upward velocity of 64 fps from the top of a building 80 feet high. The equation that gives the height of the bullet at any time (t), is h=80+64t16t^2. Find the times at which the arrow will be 128 feet in the
asked by Lisa 
GEOMETRY
How to solve for x in geometry ? for example  there is a line segment with 3 points first point to the second point is 3x while second point to the third is 5 and below the line segment there is a bracket, it is named 14 . it starts from the 3x to 5 ( it
asked by Joy 
Math check
The middle 69% of a normally distributed population lies between what two standard scores? (Give your answers correct to two decimal places.) 0.69 and 0.31
asked by Sue 6 
math
At a point on the ground 80ft from the base of a tree,the distance to the top of the tree is 11ft more than 2 times the height of the tree. find the height.
asked by grace 
Geometru
The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle?
asked by Izabelle 
Physical Science
Which kind of light is used to carry information through optical fibers? A. fluorescent B. sodiumvapor light C. laser
asked by Lenny 
physics
the speed of a wave on a string is 150m/s when the tention is 120n the percentage increase in the tension in order to rise the wave speed by 20% is
asked by Anonymous 
algebra
I have a few math questions I made them just like my actual problems so that I can go through the steps you have went through to answer my own problems...Again THESE ARE NOT THE REAL PROBLEMS JUST EXAMPLES LIKE MINE WITH DIFFERENT NUMBERS. I don't know how
asked by Anonymous 
statistics
An employer polled its employers to see if they agree with the proposed new store hours and whether or not their present shift made a difference in their answers. The customers answered 1 for agree, 2 for don't know, and 3 for disagree. Nine first shift
asked by Cameron 
grammar
1."interest" is the root morpheme of the word disinterestedly Answer "Yes" interest is the root morpheme
asked by Jim Collum 
adverb
Adverbs can describe? 1. verbs 2. adjectives 3. other adverbs 4. all of the above Answer 4 select the word that is not a adverb? 1. carelessly 2. often 3. friendly 4. well answer 3
asked by Jim Collum 
Physics
To reach city A, you travel north for 2.00 hours covering 80.0 miles. You then turn due east and travel 45.0 minutes for another 20.0 miles to reach your destination. On the first leg of your trip (traveling north), what is your speed?
asked by Isis 
Algebra
Joe put 1/2 of his allowance into a savings. He spent 2/5 of the remainder on game rentals and 3.75 on snacks. How much is monthly allowance?
asked by AL 
English
The actions of many of the characters in The Crucible spring from a complex web of motivations. Some of the characters later decide that they have chosen the wrong action and change their behavior. This switch is, again, often motivated by a number of
asked by Susan 
algebra 2
A ladder of 25ft is placed against a building in such a way that the distance from the top of the ladder to the ground is 12ft more than the distance from the bottom of the ladder to the building. What is the quadratic equation used to find the distance
asked by Anonymous 
Calculus
Let f(x,y)=sqrt(1x^2) and R be the triangular region with corners (0,0), (1,0), and (1,1). Evaluate the double integral(R) f(x,y)dA.
asked by Elyse 
geometry
Which of the following statements is true?Select one of the options below as your answer:A. A 25o angle is congruent to a 25o angle. B. Two intersecting lines form two pairs of congruent angles. C. It is possible for congruent angles to add up to 90o. D.
asked by Madison 
math
find the area of a right angled riangle. find the distance from A to B. Find the distance from B to C. Find the midpoint B(1,4) A(1,1) C(4,1) thanks for your time and help.
asked by Anonymousab 
Social Science
Rorschach vs MMPIMinnesota Multiphasic Personality Invertory? Which is better, MMPI or Rorschach?
asked by AhmadM 
Algerbra
Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x2+y2+16x−18y+145=25 Standard form (xh)^2 +(yk)^2 k
asked by Jackie 
Chemistry
................CH3 .................. CH3CH2NCH2CH2CH3 Hoping this turns out okay, but it's an amine and branching off of the N (on top) is a CH3. The name is NethylNmethylpropanamine but I don't get why. How do you know which ones to treat as
asked by a Canadian 
Math 8th Grade
I have a bunch of nickels and quarters worth $7.85 in my [pocket. How do I write a system of equation to solve and determine how many of each coin I have!!
asked by Blakey 
math
what is the surface area of a right cone with a diameter of 15 units and a slant height of 34 units.
asked by devon 
chemistry
a solution is made by dissolving 117 g of nacl in 585 g of h2o. what is its molarity
asked by hello 
accounting
Using the cost formula you derived above, what Xray costs would you expect to be incurred during a month in which 4,950 Xrays are taken?
asked by Anonymous 
physics
True or false. Electric energy is transferred from generating stations to consumers' premises at extremely low voltage?
asked by Jon 
Physics plz
Do any teacher here have an email plz becouse I want to send some pictures for question ,,, physics plz or how can I attach picture here ????
asked by Maryam 
PSY 369
Studies have shown that the longer people are married the more similar their political and social views become. Is this a positive or negative correlation? Provide an explanation.
asked by Jay 
chemistry
what is the solubility of sodium chloride in 750ml of water at 100°C
asked by humus 
Math
what is the surface area of a sphere with a radius of 4.75 units
asked by devon 
math
Standing on the top of a building, Eric spots his friend's car at an angle of depression of 35°. The car is 360 feet from the base of the building. How tall is the building to the nearest hundredth of a foot?
asked by Anonymous 
math
Bella keeps a supply of red, blue, and black pens in a drawer. The drawer has 13 red pens, 18 blue pens, and 8 black pens. If Bella wants a red pen, what is the minimum number of pens she has to pull out from the drawer to make sure she gets a red pen?
asked by Abhishek 
trig
determine the period of the function. y = cot 4t
asked by tony 
Psychology
Studies have shown that the longer children had lived in an orphanage the lower their IQ scores are. Is this a positive or negative correlation? Provide an explanation.
asked by Jay 
maths
Bella keeps a supply of red, blue, and black pens in a drawer. The drawer has 13 red pens, 18 blue pens, and 8 black pens. If Bella wants a red pen, what is the minimum number of pens she has to pull out from the drawer to make sure she gets a red pen?
asked by Anonymous 
Math check
Consider the following. (Give your answers correct to four decimal places.) (a) Find P(0.00 < z < 2.13). =.4834 (b) Find P(1.81 < z < 2.03).=.9436 (c) Find P(z > 0.23). =.4090
asked by Sue 6C 
pronoun
1. Give an example of an infinitive pronoun Anybody looking for a stale pastry would have to try the Starbucks next door. Anybody is an indefinite pronoun
asked by Jim Collum 
Algebra 3 and trig
An ocean liner is 177 miles due west of lighthouse A. Lighthouse B is 265 miles due south of lighthouse A. Find the distance from lighthouse B to the liner and the bearing of the ocean liner from lighthouse B.
asked by Lauren 
physics
The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate system for the plane is
asked by raja harishchandra 
math
Paul takes longer to paint the door than pete does.When they work together it takes them 2 hours.How long would each take to do the job alone? thanks for your time and help.
asked by Anonymousab 
Chemistry
I understood this at one point and now I'm confused again! :( What's the difference between 2,2dimethyl and 2ethyl? It's hard to find proper drawings online... For example, for naming CH3CH2C(CH3)2CH2NH2, Why wouldn't it be 2ethyl1butanamine rather
asked by a Canadian 
English
A: May I take your order? B: Yes, please. I'll have two pretzels. A: Anything else? B: Three milks, please. How much is it all together? A: It's 9,500 won. Q1. Which one is correct based on the dialogue above? 1. How much is it all together? 2. How much
asked by rfvv 
math
If jeff bought 2 basketballs and 3 baseballs for $10 and herman bought 3 basketballs and 4 baseballs for $15, how much is a basketball. Show all work.
asked by laur 
trig
identify the quadrant in which 0 lies. sin < 0 and sec > 0
asked by tony 
Calculus
Given that f(x)=x^8h(x): h(−1)=5 hŒ(−1)=8 Calculate fŒ(−1)?
asked by Alison 
math
A fair coin is flipped 3 times. The probability of getting exactly two heads, given that at least one flip results in a head, can be written as a/b, where a and b are coprime positive integers. What is the value of a+b?
asked by raja harishchandra 
Franklin High
4x  y = 2, 9x  2y = 8 find solution by substitution method
asked by liz 
physics
the speed of a wave on a string is 150m/s when the tention is 120n the percentage increase in the tension in order to rise the wave speed by 20% is
asked by Anonymous 
Boolean Algebra
In the country of Genovia, the president wants to ensure that the Monetary Committee can activate a device that opens the country’s safe. The safe system is to be activated by a device that obeys the following rules: Each member of the Monetary Committee
asked by Hy'Lee 
math
what is the surface area of a cylinder with a radius of 2 units and a height of 22 units
asked by devon 
physics
If you watch little kids try to open doors, they will often just push anywhere on the door, rather than on the edge like adults do. This is because they don't understand that it's easier to open a door if you push on the edge. But how much easier? Consider
asked by raja harishchandra 
math
how do you add, subtract, multiply, and divide fractions
asked by bob 
Theather Appreciation
HENRIK IBSEN 1. Which of these eras is Ibsen considered to be the Father of? a. Symbolism Era b. The Poetic Age c. Romanticism d. Modern Drama 2. Where is Henrik Ibsen from? a. Romania b. Finland c. Ireland d. Norway 3. According to his power point, which
asked by Jehu 
english
Recently, I was reading an article about military bases overseas and proposed cuts in funds that keep them secure. With the country experiencing so many financial difficulties and so much money being spent on the war in Iraq, proposals are being made to
asked by kenisse 
math
Can someone please show me step by step how to solve this, I've been stuck. Find the common ration r of the geometric series an that satisfies the following conditions: c=4, S=16 I would reallyy appreciate it if someone could help me
asked by mysterychicken 
Intermediate algebra, concepts and graphs
what times what equals 7 and what + what =18?
asked by Lisa 
GEOMETRY
POINTS M,N, AND O ARE 3 POINTS ON A LINE WITH COORDINATE 5, 2 SQUARE ROOT OF 5 AND 3 SQUARE ROOT OF 2 RESPECTIVELY, WHICH POINT IS BETWEEN THE OTHER TWO ?
asked by ANGEL 
science
What is the concentration in % by volume of acetic solution 50 ml acetic acid and 400 ml water
asked by Ryuta 
PLEASEEE GEOMETRY
POINT H,I,J AND THREE POINTS ON A LINE W/ COORDINATE 4/5 , 1/SQRT5 AND 1/10. WHICH POINT BETWEEN THE OTHER TWO ?
asked by ANGEL 
MATHS
A bag contains 3red, 4white, 5blue marbles. Jack begins removing marbles from the bag, at random, one at a time. What is the least no. of attempts he should make so that he gets one marble Of each color?
asked by SAMIR 
trig
for the given angle, name the quadrant in whihc the terminal side lies. 350deg
asked by tony 
algebra 2
If you move the two foci of an ellipse together so that they become a single point, then the ellipse will become a(n)?
asked by keyra 
Calculus
Find an equation for the tangent line of the function y=x+(4/x) at the point (2, 4). The equation of the tangent line is . You may enter the equation in any form.
asked by Robin 
math
The base of a triangular sail is 5ft less than its height The area is 42ft^2.Find the base and height of the sail. thanks for your time and help.
asked by Anonymousab 
maths
A dog is standing at the bottom left corner of a grid of 46×46 streets. The dog is trying to get to the top right corner of the grid, where it knows there is some food. As the dog runs, between the corners, it will only ever run up and to the right. Any
asked by anonymous 
Chemistry
Apoarently the name of this compound is 4ethyl4methylheptane: ........................CH3 .......................... CH3CH2CH2CCH2CH3 .......................... .......................CH2 .......................... .......................CH2
asked by a Canadian 
Biology
Hi My bio HW is asking what are the symptoms and host response for tuberculosis.... i have the symptoms but I need help with what the host response are.... Thanks
asked by Maria 
GEOMETRY I BEG YOU PLEASE HUHUHU
Points w,h and y and three points on a line with coordinates 2/3, 5/12, sqrt of 7 / 6 . which point is between the other two ?
asked by ANGEL 
Math
What is the smallest positive 3 digit number that leaves a remainder of 2 when divided by 3, 4, 5 or 6?
asked by John T. 
math
Angle P and Q are a linear pair. Angle Q is 36 degree less than twice of angle P. The measure of angle P is ? degree, and the measure angle Q is ? degree.
asked by mark 
maths
Will is given 10 rods, whose lengths are all distinct integers. However, he finds that given any 3 rods, he is unable to construct a (nondegenerate) triangle with them. What is the shortest possible length for the longest rod? Details and assumptions A
asked by Anonymous 
challenge to maths
n buckets are arranged in a circle, each containing 1 token. Starting with one of the buckets, you take out a coin and move it into the next bucket counterclockwise. You then take two tokens out of this bucket and move them into the next one. This process
asked by Anonymous 
Calculus
Consider the vector field: F(x,y)=2xyi+x^(2)j Integrate F over a path starting at (0,0) and ending at (2,2).
asked by Elyse 
Chemistry
What is the functional group for aromatic hydrocarbons? Would it just be the benzene ring?
asked by Paris 
economic
what are welfare payment or consumer subsidies
asked by phelisa 
math
WHAT IS THE LCD OF 2, 29 AND 53 ?
asked by ANGEL 
Math
4x+ (x+2)= 9x10 How to do this ?
asked by ANGEL 
math
I gave a test that had 50 items on it. I can only enter a grade of 20 total points if all are answered correctly. So, how much would each answer be worth?
asked by Mary 
math
Consider a 25×25 grid of city streets. Let S be the points of intersection of the streets, and let P be the set of paths from the bottom left corner to the top right corner of which consist of only walking to the right and up. A point s is chosen
asked by raja harishchandra 
math
If 16
asked by Anonymousab 
Math
Value of $100.00 earning 8% compounding interest rate annually at the end of 10 years.
asked by Ben 
physics
why weight of gold varies at 2 different places like panna and ladakh (physics)
asked by rita 
MATH
(X+2) + 3 = 10 X + 1 HOW TO DO THIS ?
asked by ANGEL 
Math
please do this with the steps so I can understand this If 6/square root x^2+4(square root end)=2, then x^2=?
asked by Anonymousab 
spanish
to finish?
asked by Anonymous 
science
why would a spinal cord injury leave someone paralyzed?
asked by leena