Questions Asked on
November 25, 2014

Physics
Car 1 going northward (direction 90 degrees) at 14 m/s in an SUV weighing 2300 kg. car 2 going southwest (direction 225 degrees) at 16 m/s in a car that weighs 1600 kg. it is a completely inelastic collision. What is the direction and speed of the two
asked by Andrew 
Physics
a 981 kg test car travels around a circular track with a radius of 0.625 km. if the magnitude of centripetal force is 2433, what is the cars speed? what is the cars centripetal acceleration?
asked by Alejandro 
integrated math
A 150 yard pipe is cut to provide drainage for two fiekds. If the length of one piece us 3 yards less than twice the length of the second piece, what are the lengths of the two pieces?
asked by mary 
Physics
I don't understand how to do this : A force of 40 N accelerates a 7.17 kg block at 6.0 m/s2 along a horizontal surface. Determine the normal.
asked by Maya 
business math
Molly Ellen, bookkeeper for Keystone Company, forgot to send in the payroll taxes due on April 15. She sent the payment November 8. The IRS sent her a penalty charge of 8.80% simple interest on the unpaid taxes of $3,600. Calculate the penalty. (Remember
asked by Anonymous 
Calculus
The sales of Universal Instruments in the first t years of its operation are approximated by the function S(t) = t 0.96t2 + 25 where S(t) is measured in millions of dollars. What were Universal's average yearly sales over its first 5 years of operation?
asked by Kathleen 
Biology
Discuss the common bacteria pathogens which are the most prevalent in causing disease in these three organs.
asked by A Student 
Geometry
Kuya John is balancing a triangular tile using a monopod. Where will he put the triangular tile on the monopod so that the tile is in the most stable position? Explain and justify.
asked by Hershey 
Algebra
I can find the finite differences, but how do I find the number of birds in July? owl.bcpnet. net/Algebra%202/ch6/section09/problem_solving.pdf
asked by Anonymous 
English
do these following sentences contain appositives? Most people, those of any age, enjoy music The core root of all the problems in the school, including uncleanliness of bathrooms and bad teachers, is the low budget given to the principal.
asked by A 
statistic
After packing k boxes (numbered 1,2, ..., k) of m items each, workers discovered that one defective item had slipped in among the km items packed. In an attempt to nd the defective item, they randomly select n items from each box and examine these. (a).
asked by Goku 
English
1. Because the last bus had gone, we had to walk home. 2. Because the last bus went, we had to walk home.  Which one is correct?
asked by rfvv 
English
1. As I have seen the movie twice, I don't want to see the movie again. 2. As I saw the movie twice, I don't want to see the movie again.  Which sentence is grammatical?
asked by rfvv 
English
1. They believe that Mary lives in Chicago. 2. Mary is believed to live in Chicago.  3. They think that Mary lives in Chicago. 4. Mary is thought to live in Chicago.  5. They know that Mary lives in Chicago. 6. Mary is known to live in
asked by rfvv 
ecology
Describe zonation on land.
asked by Miss Naa 
math
The cost of printing the first fifteen hundred copies of a book is $1500. It costs y dollars to print each subsequent copy. The cost of printing the first 7500 copies of the book is $7080. Find Y. Please explain how to solve it.
asked by jenny 
math
Simplify completely quantity 6 x squared minus 54 plus 84 over quantity 8 x squared minus 40 x plus 48 divided by quantity x squared plus x minus 56 over quantity 2 x squared plus 12 x minus 32
asked by angela 
math
John bought a total of 30 white and brown pens for a total of $32. The cost of each white pen is 70 cents more than the cost of each Brown pen. Which would be the possible value of the cost of each Brown pen( in cents)? Please help me in forming a
asked by jenny 
english
Few sentences on birthday
asked by shreyas 
maths
Average weight 0f 6 balls is 6kg.average weight of 7balls is 7kg what's the weight of 7th ball
asked by Anonymous 
Filipino
pangatnig na pansubordinasyon
asked by Zoe 
physics
a convertible travels down a straight, level road at a slow speed of 13 km/h. A person in the car throws a ball with a speed of 3.6 m/s forward at an angle of 30 degrees to the horizontal. Where is the car when the ball lands?
asked by Anonymous 
English
1. This book is worth reading. 2. It is worth to read this book. 3. This book is worth to read. 4. It is worth while to read this book.  Which ones are grammatical? Do we have other patterns using 'worth'?
asked by rfvv 
Problem Solving: Draw Picture
Maggie is planting bushes every 1.5 feet along the side of a fence. The fence is 22.5 feet long. Explain how Maggie can draw a picture to show where each bush is planted.
asked by Kurt 
Algebra
A fuel storage tank has one supply pump and two identical outlet pumps. With one outlet pump running, the supply pump can increase the fuel level in the storage tank by 8450 gallons in 30 minutes. With both outlet pumps running, the supply pump can
asked by Sally 
algebra
Tarot cards are used for telling fortunes, and in a reading, the arrangement of the cards is as important as the cards themselves. How many different readings are possible if three cards are selected from a set of seven Tarot cards?
asked by Anonymous 
Trigonometry
Help please? I'm getting really confused. >>>csc^2A+sec^2A = sec^2A csc^2A >>>1+{(tan^2A)/(1+secA)] And the "1" is getting me frustrated xO
asked by Xiumin 
Maths
Jake mixes pineapple, orange and lemonade in the ratio of 1:2:4. If he has 3 parts pineapple, how much orange and lemonade does he need?
asked by Rose 
accounting 2
if amores has the capital of 1,616,000 while andrada is to invest sufficient cash to give him a onethird interest in the partnership. how much andrada's capital?
asked by joan 
Neuroscience
A neuron has: 1. a single cell body or soma 2. one or two cell bodies or somata 3. its nucleus in the axon 4. none of the above
asked by qwerty 
Neuroscience
The longest neurite of a neuron is typically a: 1. cell body 2. dendrite 3. axon 4. none of the above
asked by qwerty 
Neuroscience
The DNA of a neuron is located in its 1. dendrite 2. axon 3. cell body 4. Golgi apparatus
asked by qwerty 
math
a 154 lb person burns 420calories per hour riding an exercise bicycle at a rate of 15 mi/hr write a function rule to represent the total calories burned over time by that person.
asked by Anonymous 
english
John took off his helmet, turnout gear, and boots in the truck room and hung the jacket on his assigned peg. Just above the peg was a handmade label that read, ‘FF#121 Wilson.’ John still felt a sudden surge of pride every time he looked at the label.
asked by 2phoneeeeee 
chemistry
3 moles C6H12O6 in 100 ml equals what molarity?
asked by Katie 
chemistry
calculate the molarity of a g NaCl in 250 ml solution.
asked by Zach 
chemistry
how many moles of Kl are present in 500 ml of a 0.2 M solution?
asked by Amber 
physics
A 61.0 kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper
asked by ty 
chemistry
what volume of 0.5 BaCl2 is needed to have 0.1 moles of BaCl2?
asked by Amy 
chemistry
how many ml of 0.5 M BaCl2 are needed to have 75 g of BaCl2?
asked by Mackenzie 
chemistry
3moles KI in 500 g of H2O equals what molality?
asked by Christian 
chemistry
what is the molality of 18 g NaCl in 200 g of H2O?
asked by Brittany 
chemistry
how many moles of BaCl2 are in 300 g of H2O if the molality is 0.2 m?
asked by Tyler 
chemistry
how many grams of BaCl2 are present in 150 g of H20 if the concentration is 0.3 m?
asked by destiny 
Science!
An index fossil must be? a) older than 1 billion years. b) smaller than other fossils around it. c)larger than other fossils around it. D) unique in its appearance. pleases help someone i don't really know but my best guess is a)
asked by kitty 
Chemistry
In a routine laboratory analysis, a solution of sodium chromate with a chromium concentration of 175.0 ppm is required. Calculate the molarity of this solution.
asked by Jessica 
POTASSIUM SULPHATE FERTILIZER GRANULE PROCESS
WHAT QUANTITY OF LIME STONE IN KG. WOULD BE REQUIRED TO ABSORB ONE LITRES OF HCL
asked by ANWAR 
Chemistry
68.0g of solute were dissolved in 393 mL of benzene. The solution froze at 0.50°C. The normal freezing point of benzene is 5.5°C and the molar freezing point constant is 5.12°C kg/mol. The density of benzene is .879 g/mol. Calculate the molar mass of
asked by Jessica 
Adverbs
Which words make up the adverb phrase in this sentence? The school bus crosses two bridges along its route. A. along its route B. two bridges along C. The school bus D. crosses two bridges
asked by Jai 
Calculus
20) Evaluate the definite integral. On the integral from e to e^3 ∫dx/xl(nx)^(1/2)
asked by Hailey 
Calculus
2) If f(x)=∫t^2dt not he integral from 4 to x^3 then f′(x)=?
asked by Hailey 
Calculus
5) Evaluate the definite integral. On the integral from 1 to e^7 ∫dx/x(1+lnx)
asked by Hailey 
Physics Collision problem
A 238U nucleus is moving in the xdirection at 4.8×105m/s when it decays into an alpha particle (4He) and a 234Th nucleus. The alpha moves at 1.2×107m/s at 36∘ above the xaxis. a. Find the speed of the thorium nucleus. v= b. Find the direction of the
asked by Peter 
easy math
5.4 ÷ 0.9 = 6.0 <  ? this one or 0.6 0.6 6.0
asked by Jamie 
Social Studies (Check my answer plz)
Hey, I don't understand this question... ~~What were the positions of the Federalists and AntiFederalists on the new Constitution? Provide at least two details supporting why each side supported or did not support the new Constitution.~~ My answer was
asked by DerpyPegasus33 
statistics
In a recent survey, it was stated that Malaysians watch videos on YouTube on average two hours per day. Assume that σ = 2. Using students in UTeM as the sample, conduct a hypothesis test to determine if the average for students at UTeM is lower
asked by help me 
statistics
Suppose that young adults own an average of 3 pairs of jeans. Survey 8 people from your class to determine if the average is higher than 3.
asked by help me 
statistics
Buy three small packages of M&Ms and 5 small packages of another brand of candy (same net weight as the M&Ms). Test whether or not the mean number of candy pieces per package is the same for the two brands.
asked by help me 
Math
1. What value for x makes the sentence true? 7x = 1 0 6 3 2
asked by Shadow 
statistics
Test whether women have, on average, more pairs of shoes than men. Include all forms of sneakers, shoes, sandals, and boots. Use staffs at UTeM as the sample.
asked by help me 
math
x cube plus kx plus 9=0 give me answer
asked by faiz 
vector
The centroid of the triangle OAB is denoted by G. If O is the origin and OA=4i + 3j ,OB=6ij. Find OG in terms of the unit vectors, I and j.
asked by benjieo 
Chemistry
3NO2 + H2O > 2HNO3 + NO Calculate the percent yield for the following reaction if 76.8 g of H2O reacted and 125 g of NO were produced.
asked by Amanda 
Chemistry
Calculate how much acetylene (C2H2) can be produced from 358 g of H2O and an excess of CaC2 if the percent yield for this reaction is 94.5%. CaC2 + 2H2O > C2H2 + Ca(OH)2
asked by Amanda 
Math. (Check Answers) STUCK
HI, I'm stuck on two questions(: Round the number to the thousandths place. 97093.113469 Is it 97093.113 <  ? 97093.112 97093.114 97000 Without multiplying, determine the sign of the product. (19)(2)(37)(0.8)(112) Postive Negative
asked by Kim 
vectors( need answer asap)
The centroid of the triangle OAB is denoted by G. If O is the origin and OA=4i + 3j ,OB=6ij. Find OG in terms of the unit vectors, I and j.
asked by benjieo 
physics
A 61.0 kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper
asked by tony 
Biology
What is this final stage of cellular respiration called where the most ATP molecules are made?
asked by June 
math
the number of professors in a collage is P and the number of students is S and there are 15 times as many students as professors. write the answer as an algerbra equation.
asked by Emma 
Math... Stuck... A little help?
x cube plus kx plus 9=0 I took it as: x^3+kx+9=0 I answered: If so......... x^3+kx+9=0 Subtract 9 from both sides (Somenoe correct me if I'm wrong, please) which looks like: x^3+kx+99=09 Now the best part.... finding variables x^3+kx=9 x^3+(k•x)=9
asked by Anonymous :D 
Biology
In what form of energy does energy from sunlight end up after photosynthesis and cell respiration?
asked by Anonymous 
math
find a value for x so that 28/12 = 7/x x=?
asked by Emma 
math!!
a high school has a student reduction and lost 1/10 of its students. If 198 of its students were left after the reduction. How many students were there to start with.
asked by Michelle . 
pre calc
the volume of a gas varies inversely as its pressure and directly as its temperature. A certian gas occupies a volume of 2.3L at a temp of 380 K and a pressure of 20 N/cm^2 find the volume when the temp is 342 K and the pressure is 10 N/cm^2
asked by wally 
math
multiply and simplify 5^6 * 5^3
asked by Michelle . 
Math
Early pay: Pay $60 before memorial day: swim any number of days Write an equation in slopeintercept form so that x is the number of days and y is the cost.
asked by Sadie 
Basic tech
A girl pushes a load of mass 20kg to a distance of 10 metres in 5 seconds calculate (1) the work done (2) the energy used (3) the girl's power (a=g=10m/s square)
asked by Olorunnimbe 
pre calc
at a single ticket booth, customers arrive randomly at a rate of x per hour. the average line length is given by F(x)= x^2/40020x Where 0
asked by wally 
Math
Log2base10=0.301 and log3base10= 0.477. Evaluate log45base10
asked by Carlos 
I need help in 6th math
Elizabeth has 1 7/10 as many plants as Rosalie has in her garden. If Elizabeth has 51 plants, how many plants does Rosalie have in her garden? Would it be 56?
asked by Jameelah 
Chemistry
How many grams of CO2 could be produced from the combustion of 0.0713 mol. of C2H4 in the presence of 0.156 mol. of O2?
asked by Jass 
Math Help! ASAP!
2. Write a ratio for the situation in three ways comparing the first quantity to the second quantity. In union City, about one in every three homes has two cars A. 5 to 2, 5:2, 5/2 B. 1 to 3, 1:3, 1/3 C. 5 to 3, 5:3, 5/3 D. 3 to 2, 3:2, 3/2 I picked D. I
asked by Just a friend ;) 
English
Hi. I was asked to watch a video about the civil rights movement. and state 3 big ideas and to explain why I made them my 3 big ideas I put Freedom Equality Justice and explained why .. Is that 3 ideas ? Next part they asked How would the story be
asked by Hannah 
Please Help Me With This Chemistry HW Question!
Should 25 ml of 0.15 M HCL solution be added to 250 mL of buffer solution containing 0.25M HF Ka7.1 x 10, and 0.40 M NaF at a pH of 3.15 what is the new pH?
asked by Always 
Math! Need The Help!
Which is the best buy? A. $12.40 for 6 boxes of tissues B. $10.58 for 5 boxes of tissues C. $14.11 for 9 boxes of tissues D. $15.47 for 8 boxes of tissues
asked by Just a friend ;) 
1 Math question
Estimate $6.56 + $13.02 using frontend estimation. about $19.60 about $18.60 about $20.10 *** about $17.10
asked by Anonymous 
Chemistry
Given the molar concentration of hydrogen ion, calculate the concentration of hydroxide ion [H+]=7.9*107
asked by Anonymous 
Chemistry
If 45.5 g of calcium carbonate is reacted with phosphoric acid, how many grams of carbon dioxide will be produced if the reaction yield is 85.0 %?
asked by Jass 
Chemistry
Determine the acid and base that were neutralized to produce each of the following salts. Li2CO3 (aq). I don't understand how to solve this.
asked by Anonymous 
Math
A square cage is built with 20 ft of wire fencing. How long is each side?
asked by 4th grade 
MATH
Rick has a box of coins .The box currently contains 51 coins, consisting of pennies, dimes and quarters. The numbers of pennies is equal to the numbers of dimes and the total value is $5.73. How many of each denominations of coins does he have? the number
asked by Michelle!! 
math
find the prime factorization of 35^3 *55*9^11
asked by Winston 
Chemistry
Given the molar concentration of hydroxide ion, calculate the concentration of hydrogen ion. [OH]=0.0010 Can someone please help me with this process. Thanks
asked by Anonymous 
math
multiply 2(pq)
asked by angela 
finnce100
In late 2010, you purchased the common stock of a company that has reported significant earnings increases in nearly every quarter since your purchase. The price of the stock increased from $ 12 a share at the time of the purchase to a current level of $
asked by jenny 
Maths
In the village school the ratio to boys to girls is 5:6. there are 175 boys. how many girls. please show me full working out but don't give me the answer as I want to find it out for myself. I just need to know how to do it. Thank you
asked by Anonymous 
physics
A tank of compressed helium for inflating balloons is advertised as containing helium at a pressure of 2374 psi, which, when allowed to expand at atmospheric pressure, will occupy a volume of 194 ft3. Assuming no temperature change takes place during the
asked by abc 
programming
Step 1: Design a flowchart or write pseudocode for a program that allows a user to enter 12 numbers, then displays all of the numbers (in the order they were entered) as well as the largest number and the smallest number. Step 2: Implement and test your
asked by G 
probation and parole
1. Alcoholics Anonymous (AA): A. recognizes that preaching abstinence is most effective in helping alcoholics. B. was founded by two men who were alcoholics. C. can be quite costly to participants. D. none of the above 2. All of the following statements
asked by Kim 
Chemistry
How many grams of oxygen gas must react to give 2.80g of ZnO?
asked by McKenzie 
Thermodynamics
Drawing a blank studying last minute for an exam: when does a piston cylinder not follow the 2nd law of thermodynamics!!!!
asked by Joe 
Chemistry
How many grams of oxygen gas must react to give 2.80g of ZnO? 2Zn(s)+O2(g)→2ZnO(s)
asked by McKenzie 
Chemistry
If the student collected 3.46g of acetone and the theoretical yield is 3.67 g, what is the percent yield?
asked by blank 
social studies
why is mexico called a developing country?
asked by lexus 
probation and parole
Halfway houses: A. can be “halfway in” or “halfway out.” B. can be used for probation/parole violators. C. often encounter community opposition. D. all of the above My answer: I believe it is A The "interstate compact" provides for: A. offender
asked by Kim 
Math
Solve using the annihilator method Y"8y'+20y=5xe^(4x) sin (2x)
asked by Stephen 
finance
The countries of Stabilato and Variato have the following average returns and standard deviations for their stocks, bond, and shortterm government securities. What range of returns should you expect to earn 95 percent of the time for each asset class if
asked by jenny 
Maths
I understand that the answer to this is a+bc, but I'm not sure how to show working out for this. Any help would be great. " O is any point in the plane of the square ABCD. The vectors OA, OB and OC are a, b and c respectively. Find the vector OD, in terms
asked by Vectors 
Chemistry help drbob222
Which of the following processes would result in a negative entropy change? A. Leaves falling off a tree B. A deck of cards falling on the floor C. A piece of cake crumbling as it is cut D. A student filing papers I think d
asked by Morgan 
Statistics
The grades in the final exam of a random sample of 25 students produce a standard deviation, s = 9.5. a) Construct a 90% confidence interval estimate for the population variance, . b) Can we infer at 10% level of significance that the population variance
asked by Kendra 
math
how i make triangular prism,the dimensions are 6 unit base and 6 unit height,but the entire prism has height of 15 unit
asked by Lola 
Science 1 easy question!!!!
Is K^+1 and F^1 an ionic bond? My answer: yes
asked by Anonymous 
math
a hollow shaft has a cross sectional area of 8.68 cm square if its inside diameter is 0.75 cm, calculate its outside diameter.
asked by renison 
Science 1 easy question!!!!
One way the modern atomic model differs from Thomsons atomic model is that electrons are no longer scattered throughout an atoms positive matter like chocolate chips in cookie dough, instead each electron is outside of the nucleus occupying a specific
asked by check my answer 
Science 1 easy question!!!!
If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current___ My answer: Atomic model?
asked by check my answer 
physics
You call out to your friend who is standing at a distance of 350 m. a) if the temperature of the air is 35 degrees Celsius, find the time when your friend will hear you after you have called her. b) Find the wavelength of your sound if your frequency is
asked by Kiki 
chemistry
What would cause entropy to increase in a reaction? A. The products forming a more rigid structure B. The products forming an ordered pattern C. The products becoming more spread out D. The products forming fewer molecules I think the answer is c or d
asked by Morgan 
chemistry
What is ΔH in the equation ΔG = ΔH  TΔS? A. The change in specific heat between the products and the reactants B. The change in enthalpy between products and reactants in a reaction C. The change in entropy between products and reactants in a reaction
asked by Morgan 
math
sqrt(x) * 7sqrt(x)
asked by wally 
parole/probation
This is my new assignment. I need a bit of help. I believe my answer is correct. However my textbook doesn't state it. A) "AlAnon": A. was established by the same two men who founded AA. B. was established by the nonalcoholic wife of one of the men who
asked by Gale Simens 
math show work please
111/x+30/x^2=0 A.the solution set is ? B.The solution set is the set of real numbers or C. the solution set is an empty set
asked by wally 
Math
7b  2 = 1b + 10
asked by Anon 
math show work please
1/(X+3)+4/(x+5)= 2/(x^2+8x+15) a. the solution set is b. the solution set is all real numbers c. the solution set is empty
asked by wally 
Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
asked by Morgan 
Religion
Where and when did euthanasia begin?
asked by Lila 
Chemistry
0.15 grams of benzene (C6H6) is dissolved into 4.7 grams of melted biphenyl. The freezing point of the mixture was determined to be 4.7 degrees below the freezing point of pure biphenyl. Based on these results, what is the Kf of biphenyl? (Use the standard
asked by Taylor 
Math
Louis paid $42 for a dozen magazines with her annual and subscription to her favorite sport magazine. What is the unit cost for each magazine?(How many magazines did she subscribe to) Please show work.
asked by Alicia 
Geometry
The instructions say, "The measure of an exterior angle of a regular polygon is given. Find the measure of an interior angle. Then find the number of sides. For another problem just like this, they gave the number 18 and I subtracted 18 from 180 and solved
asked by Melissa 
Physics
A 85Kg firefighter climbs up a ladder at a constant speed of 2.5 m/s. What average power does the firefighter expend to overcome gravity?
asked by Bob 
AP Physics
A block of mass 80.4 kg is sliding on a ramp. The angle of elevation of the ramp is 45 degrees. The coefficient of friction is 0.43. Use g=9.8. Give your answer to at least 2 decimal places. Assume that down the ramp is the positive direction.
asked by Tanya 
Physics help  Waves and Sound Questions
1) A 1.50m long gas column that is open at one end and closed at the other has a fundamental resonant frequency 80.0 Hz. What is the sound speed in this gas? a) 120 m/s b) 30.0 m/s c) 480 m/s d) 213 m/s e) 53.3 m/s 2) You drop a stone down a well. You
asked by Kimberly 
6th grade Math
Rafael asked 85 students what kind of pet they liked the most. Exactly 35% of the students said they liked dogs best. What was the total number of students who said they liked dogs best? Please show work!!
asked by Genesis 
math
create a situation to describe the rule y=8x+20
asked by ian atkins 
Science
This will help explain another question I have. So,what is the pattern that occurs when magnetic waves are spread out through the visible spectrum?
asked by Flabbergasted 
Math
What fraction equals 1/2
asked by JJ 
SCIENCE BUT I REALLY NEED HELP
genes are specific sections of ___ To pass its traits on to the next generation, organisms must ____
asked by anonomyss 
Chemistry
A substance has the following properties: Heat capacities: 1.34 J/g oC (solid) 3.02 J/g oC (liquid) 2.55 J/g oC (gas) Heat of Fusion = 4.23 kJ/mole Heat of Vaporization = 23.5 kJ/mole Boiling Point = 88.5 oC Melting Point = 30.0 oC Molar Mass = 96.3
asked by Amanda 
Intro to Chem
How many grams of water, H2O, can be formed from the reaction of 8.9 grams of 2propanol, C3H8O?
asked by Nicole 
Maths
Question A mixture of alcohol and water has the density 750 kg m 3.calculate the ratio in the mixture of alcohol to water by i.mass ii.volume
asked by Alozie benjamin 
Math
Currently you have $80 and your sister has $145. You decide to save $6 of your allowen e each week, while your sister spends her whole allowance plus $7 a week. How long will it be before you have as much money as your sister?
asked by Beth 
chemistry
How many milliliters of oxygen gas at STP are released from heating 5.15g of calcium chlorate? Ca(ClO3)2(s)→CaCl2(s)+3O2(g)
asked by blank 
Chemistry
Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen iodide are produced from 160mL of H2? H2(g)+I2(g)→2HI(g)
asked by blank 
chemistry
Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen gas must react to give 49.0mL of NH3? 3H2(g)+N2(g)→2NH3(g)
asked by blank 
Math
A trees shadow is 32 feet long how tall is the tree?
asked by Prince 
trig
determine a set of parametric equations to represent the line segment that begins at the point(2,6) and ends at the point (10,4)
asked by ! 
chemistry
State the number of valence electrons for an iron(II) ion in an ionic bond.
asked by blank 
trigonometry
rewrite each equation in rectangular form and describe the graph. solve for y if possible. a. theta = pi/6 b. r=8costheta
asked by help 
chemistry
State the number of valence electrons for a chloride ion in an ionic bond.
asked by blank 
Brief Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) Enclosed by y = e^x, y =
asked by Matt 
Trigonometry
Determine exact solutions for each equation in the interval x E [0,2 pi] sin^2x  3/4 = 0 *3/4 is a fraction 2tan^2x  square root 12 = 0
asked by Victoria 
Art Help Please!!!!!
The picture is of a woman's head sculpted out of clay,her hair is red also her eyebrows,freckles, and lips. Her eye's are blue with black outlining her nose is sculpted out and lips open.What is one characteristic of this student's work? A.creation of 3D
asked by Callie 
Chemistry
calculate the molar hydroxide ion concentration of each of the following solutions given the pH 4.53. Answer should be for OH. Please show me how to do this in step by step
asked by Anonymous 
Trig
Determine exact solution. x E (0, 2pi) 2csc^2x8=0
asked by Zoe 
Art Help Please!!!!!
To create a portfolio of work, thsi artist would do all of the following except. The picture is of a robot in black and white. A. include more drawings of characters the artist has created to show creativity. B. include a variety of color schemes and
asked by Callie 
U.S. History
Approximately ___ of the country's adult population has Internet access. a. onethird b. twothirds c. onequarter d. threequarters Would it be answer B?
asked by Sara 
english 9!! (hunger games)
what are the differences between the capitol and other districts looking upon: a.Food b. Shelter c. Work d. Recreation e. Safety i have to make a graphic orgnaizer please help!!
asked by cherry 
Art Help Please!!!!!
The picture is black and white and it is two hands holding each other(Like a guy and girl holding hands). What type of drawings would this artist benefit from including in her portfolio of work? A. drawings that were of the same hands in diffrent positions
asked by Callie 
Chemistry
4P + 50_2 > 2P205 25.4g of P are used with excess 02 how many grams of p205 should theoretically form I have no idea where to start im lost
asked by Shawn 
science
explain how mutations in dna affect the traits of an individual
asked by anon 
Chemistry
100 mL of LiNO3, 0.241 M is mixed with 240 mL of 0.618 M Ca(NO3)2. What is the final concentration of NO3 in the solution?
asked by Matt6 
Intro Biology
I can't find examples in the book as reference. Please help me with these questions and explain why. 1.) Which of the following has no vascular tissue (“plumbing system”)? A) Conifer B) Angiosperm C) Fern D) Moss E) Ginkgo 2.) Which of the following
asked by Andrew 
Math Help!
Identify the part,whole,and percent in the following statement: Find 15% of 750 A. part=750,whole=n,percent=15 B. part=15, whole=750,percent=p C. Part=n,whole=750,percent=15 D.none of these Is the answer C?
asked by Callie 
Math Help!
Write a percent equation that can be used to solve the following problem:820 is 20% of what number? A. n=0.2x 820 B. 820=0.2x n C. 0.2= nx 820 D. none of these Is the answer A?
asked by Callie 
Math Help!
Write a percent equation that can be used to solve the following problem: 25 is what percent of 350? A. n= 25 x 350 B. 350 =p x 25 C. 0.25= p x 350 D. none of these Is the answer D?
asked by Callie 
chem please help drbob222
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
asked by Morgan 
chem please help drbob222
When is there a need to determine G? A. When H > 0 and S = 0 B. When H > 0 and S > 0 C. When H = 0 and S < 0 D. When H > 0 and S < 0 P.S. there are triangles before the G, H, and S.
asked by Morgan 
Math Help!
On a 40question test, Peggy answers 34 questions correctly. What percent of the questions does she answer correctly? A. 85% B. 0.75 C. 1.17% D. 8.5% Is the answer A?
asked by Callie 
chem please help drbob222
In the roasting of zinc ore, the total enthalpy for the reactants is 412.0 kJ and the total enthalpy for the products is 1294.54 kJ. What is the enthalpy for the roasting reaction? A. 882.54 kJ B. 1706.54 kJ C. 1706.54 kJ D. 882.54 kJ I think the
asked by Morgan 
trig
rewrite each equation in polar form. solve for r if possible a. 2x+3y=5 b. y=1/2x
asked by trig 
Math Help!
Out of 75 students, 15 are on the student council. What percent are on the student council? A.20% B.80% C.40% D.60% Is the answer D?
asked by Callie 
trigonometry
parameterize the portion of the unit circle that begins at the point (root2/2, root2/2) and ends at (0,1)
asked by i need help 
chem please help drbob222
Why is the process of examining enthalpies of a reaction helpful? A. It helps in determining how a reaction occurs spontaneously. B. It helps in determining the temperature that a reaction requires to proceed. C. It helps in determining how fast a reaction
asked by Morgan 
statistics
express the CI (0.045, 0.133) in the form of p ̂E
asked by MissPatte 
Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
asked by Morgan 
Math
A bag contains 10 white balls and 6 yellow balls. We need to add 112 balls to the bag and keep the ratio the same. How many of each do we need to add.  What's the correct formula to use?
asked by Nick 
Algebra
Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 2.1 when p = 4.2, q = 5.4 and s = 2.4.) v =
asked by angie 
chemistryplease help
calculate the molar hydroxide ion concentration of each of the following solutions given the pH 4.53. Answer should be for OH. Please show me how to do this in step by step I tried putting in 10 xy4.53= 0.000029512 which is 3.0 * 10^5 It says that the
asked by Anonymous 
Chem please help
Which of the following correctly describes the net energy change during a reaction? A. The net change in energy is negative for endothermic reactions where energy is required. B. The net change in energy is positive for endothermic reactions where energy
asked by Morgan 
Science Help Please
Which of the following is not among the advantagees of generrating nuclear energy? A.it does not release carbon dioxide into the atmosphere B. it does not require a specialized process or involve any risk C. it does not release chemicals that cause acid
asked by Callie 
physics
An arrow is shot at an angle 31 ◦ with the horizontal. It has a velocity of 47 m/s. How high will the arrow go? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m
asked by to mas 
chemistry
Calculate the pressure exerted by 1.2 mol\rm mol of gas in a volume of 28.2 L\rm L and at a temperature of 334 K\rm K.
asked by ANTHONY 
Finance
Western Corporation’s stock was $10 per share when purchased, and is now at $14 per share. The company made $1 million in aftertax income and there are 500,000 shares outstanding. What is the capital gain per share?
asked by willy 
TRIG!
true or false, the two sets of parametric equations x=t, y=t^2+1 and x=3t, y=9t^2+1 have the same graph. justify your decision.
asked by PLEASE HELP 
chem please help
What is steel? A. It is a compound of iron and various other elements including carbon. B. It is an ionic substance made of iron and various other elements including carbon. C. It is an alloy of iron and various other elements including carbon. D. It is a
asked by Morgan 
chemistry
The G value for formation of gaseous water at 298 K and 1 atm is 278 kJ/mol. What is the nature of the spontaneity of formation of gaseous water at these conditions? A. The reaction is never spontaneous. B. The reaction is sometimes spontaneous. C. The
asked by Morgan 
English
1. However hot it is, he never turns on air conditioner to save electricity. 2. However hot it is, he never turns on the air conditioner to save electricity. 3. However hot it is, he never turns on an air conditioner to save electricity. 4. However hot it
asked by rfvv