Questions Asked on
February 1, 2011

Chemistry
Calculate the volume of Sulfur dioxide produced when 27.9 mL of O2 reacts with carbon disulfide
asked by La 
Chemistry
Which type of intermolecular force is Cl2 MgF2 NH3 Are they dipoledipole, dispersion,hydrogen bonding and/or ionic?
asked by Artie 
chemistry
The halflife for the firstorder decomposition of is 1.3*10^5. N2O4> 2NO2 If N2O4 is introduced into an evacuated flask at a pressure of 17.0 mmHg , how many seconds are required for the pressure of NO2 to reach 1.4mmHg ? i know that the half life
asked by Anonymous 
Chemistry 1
How many grams of a stock solution that is 92.5 percent H2SO4 by mass would be needed to make 250 grams of a 35.0 percent by mass solution? Can you please teach me how to do this? I get the other stoichiometry stuff, but this one tripped me up because I
asked by Brittany 
Chemistry
Instant cold packs used to treat athletic injuries contain solid NH4NO3 and a pouch of water. When the pack is squeezed, the pouch breaks and the solid dissolves, lowering the temperature because of the following endothermic reaction. NH4NO3(s) + H2O(l) =
asked by Don 
math
ragan takes an hour to plant 2 vines between each of the 6 posts in the first row of his vineyard how long will it take to plant two vines between each of the 9 posts in the longer second row hint 10 vines take one hour
asked by emily 
physics
A basketball player achieves a hang time of 1.07 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s2.
asked by Anonymous 
Statistics
Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students' lab measurements is 10 milligrams. Juan repeats the measurement 3 times and records the mean (xbar) of his 3 measurements. a)
asked by Emily 
spanish
Rewrite each sentence, changing the positive words to negative ones. 1. Leyó algunos libros de Vargas Llosa el año pasado. 2. También leyó algunas novelas de Gabriel García Márquez. I tried ningun and ningunos for both and it didn't work.
asked by Cassie 
Chemistry
why is da value of heat of neutralization of NaOH AND HF is higher dan that of its constant value??
asked by Syed 
Physics
A small m = 2.00 g plastic ball is suspended by a L = 24.0 cm long string in a uniform electric field, as shown in Figure P15.50. If the ball is in equilibrium when the string makes a 18.0° angle with the vertical as indicated, what is the net charge on
asked by Rachel 
us history
what is the Proclamation of Neutrality?
asked by NaydeneJoli 
math
Find the area of an equilateral triangle (regular 3gon) with the given measurement. 6inch side. A = sq. in.
asked by ben 
childcare
Questions 1–3 are based on the following scenario: Mrs. Carroll and her sister, Ms. Howard, plan to operate a small day care center in a remodeled building. They're licensed and staffed to handle up to 24 children. Ms. Howard doesn't plan to work at the
asked by dawn 
childcare
1. In order to be eligible for accreditation by the NAEYC, an early childhood program must serve a minimum of _______ children. A. five B. six C. ten D. fifteen 2. Which of the following agencies or organizations does not grant certifications? A. State
asked by dawn 
pchem II
the work function for metallic Caesium is 2.14 eV. Calculate the kinetic energy and the speed of the electrons ejected by light of wavelength 700 nm
asked by Anonymous 
physics
Mars has a mass of about 6.14 × 1023 kg, and its moon Phobos has a mass of about 9.8 × 1015 kg. If the magnitude of the gravitational force between the two bodies is 4.18 × 1015 N, how far apart are Mars and Phobos? The value of the universal
asked by annn 
8th grade Math
Khalid uses Penelope’s bag of letter tiles to create a different game in which he tries to randomly draw a set of five tiles with consecutive letters. If Khalid plans to draw five tiles from the bag, without looking and without replacing any tiles, what
asked by Anonymous 
child day care
1. When preparing an environment for schoolaged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually
asked by dawn 
Math
A 30% solution of fertilizer is to be mixed with a 60% solution of fertilizer in order to get 150 gallons of 50% solution. How many gallons of the 30% and the 60% solutions should be mixed. I really need help.
asked by Candice Watt 
Physics; Elect.
1. A charge (uniform linear density=9.0 nC/m) is distributed along the xaxis from x=0 to x=3.0m. Determine the magnitude of the electric field at a point on the x axis with x=4.0m. a)81 N/C b)74 N/C c)61 N/C d)88 N/C e)20 N/C 2. A +2nC point charge is
asked by Thomas 
Literature
In John Hersey's "A Noiseless Flash," what are some fiction and nonfiction techniques that he uses? And how do these effect the reader? I know the character development is a fiction technique, and the uses of facts and statistics are nonfiction techniques,
asked by Carlie 
Algebra
I'm needing help with this. Thanks An individual can be classified by gender as male, female, by hair color as black, blonde, brown, red, unknown, and by eye color as black, brown, green. A) How many different classifications are possible (for example,
asked by CC 
Physics
A tow truck exerts a force of 3000 N on a car, accelerating it at 2 m/s2 . What is the mass of the car?
asked by Peter 
physics
If you have swam one lap in a swimming pool, that means you have swam from one end to the other and back. In 3.5 h, a swimmer makes exactly 86 laps in a swimming pool that is 43 m long. Determine the distance the swimmer traveled, the total displacement of
asked by mah 
Chemistry
When ice melts, it absorbs 0.33 per gram.How much ice is required to cool a 12.0 drink from 72 to 37, if the heat capacity of the drink is 4.18 ? (Assume that the heat transfer is 100 efficient.)
asked by Kate 
Physics
A watch manufacturer claims that its watches gain or lose no more than 8 seconds in a year. How accurate is this watch, expressed as a percentage?
asked by Mara 
Physics
A small m = 2.00 g plastic ball is suspended by a L = 24.0 cm long string in a uniform electric field, as shown in Figure P15.50. If the ball is in equilibrium when the string makes a 18.0° angle with the vertical as indicated, what is the net charge on
asked by Rachel 
Probability and Statistics
The number of calls that arrive under a particular time in a cell has been established to be a Poisson distribution. The average number of calls arriving in a cell in 1 millisecond is 5. What is the probability that 8 calls arrive in a cell in a given
asked by Matthew 
geometry
a plane is one mile above sea level when it begins to climb at a constant angle of 3 degrees for the next 60 ground miles. about how far above sea level is the plane after its climb
asked by Anonymous 
Chemistry
Rubbing alcohol is a 90 mass % solution of isopropyl alcohol, C3H8O, in water. How many grams of rubbing alcohol contains 20.0 g of isopropyl alcohol?
asked by Tasha 
8th grade Math
Penelope created a game using a bag of 26 tiles, each with a different letter of the alphabet written on it. She uses a stopwatch to time how fast she can create one 5letter word from a set of five randomly selected letters. To play this game Penelope
asked by Anonymous 
Chem
How many deciliters of carbon dioxide are produced when .38L of SO2 is formed?? Thanks :)
asked by Bree 
Calculus
Consider a circle of radius 5 and a point P rotating around it, as shown in the figure to the left, below. The angle(theta) , in radians, is given as a function of time t, by the graph in the second figure. What is the value of when t=0.5? Find the
asked by Sachenka 
Chemistry
What is the enthalpy change (in kJ/mol) for the following process? Na+(g) + Br(g) > NaBr (s) Hint: use the BornHaber cycle Note: the reference state for Br2 is Br2(l) not Br2(g) Data (in kJ/mol): enthalpy of sublimation of Na(s): 107 standard enthalpy
asked by Crystal 
physics
A water pistol aimed horizontally projects a stream of water with an initial speed of 7.20 m/s. How far does it travel before dropping a vertical distance of 1.95 cm?
asked by Anonymous 
Poetry
Hello! I need help in identifying the elements of poetry in this poem. :O Please help.. Batik Maker by VIRGINIA MORENO Tissue of no seam and skin Of no scale she weaves this: Dream of a huntsman pale That in his antlered Mangrove waits Ensnared; And I
asked by Anonymous 
Math Please help
lim ((x^264)/(x+8)) x>8
asked by Vicky 
math
sam makes 70% of his free throws what is the probability that sam makes 2 free throws in a row
asked by zane 
Spanish7th grade
How do I answer this question? ¿Qué haces los lunes a las diez de la mañana? Hago estudio. Hago escribo Escucho a la maestra. Hago miro la televisión.
asked by Scott 
social studies
hi i need help with this question (Name 3 produce produccts) i don't understand the question please helppppppppppp
asked by 3 grade 
physics
A baseball pitcher throws a pitch with an initial velocity of 39.9 m/s, directed horizontally. How far does the ball drop vertically by the time it crosses the plate 18.0 m away?
asked by Anonymous 
child care
1. The first step to planning a child care center is to A. develop your program philosophy. B. determine the nature of the need for child care facilities in your community. C. establish goals for the children, parents, staff, and community. D. determine
asked by dawn 
English
In John Hersey's "A Noiseless Flash," what are some fiction and nonfiction techniques that he uses? And how do these effect the reader? I know the character development is a fiction technique, and the uses of facts and statistics are nonfiction techniques,
asked by Carlie 
physics 1
A 7.2 kg diver stands at the end of a diving board 2.80 meters from its support. calculate the magnitude of the torque cause by the diver on the board the point of support.
asked by dominic 
Math
Dayle is paddling his canoe upstream, against the current, to a fishing spot 10 miles always. If he paddles upstream for 2.5 hours and his return trip takes 1.25 hours, find the speed of the current, and his still water????????
asked by Candice Watt 
Math
The Mathematical model C(x)=100x+20,000 represents the cost in dollars a company has in manufacturing x item during a month.
asked by Ella 
physics
A phone cord is 4.75 m long. The cord has a mass of 0.200 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.900 s. What is the tension in the cord?
asked by gilbert 
Algebra
A candy cane 30 cm high has a circumference of 3 cm. The red “ribbon” makes exactly 4 complete turns round the candy cane while its two ends touch the cane's top and bottom. How long is the ribbon in cm? It doesn't make any sense to me. Can somebody
asked by Alexandra 
math
in the united states .154,000,000 tons of garbage are prouduced annually .on an average ,about how many pounds is that each month for each person in the united states? the popullation of the united states is about 250 millon pounds answer: pounds
asked by cindy 
Chemistry
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this
asked by Paul 
English
Fill in the blank with possessive nouns from familiar fairy tales. 1. Goldilocks ate the BLANK porridge. 2. Jack climbed the beanstalk and stole the BLANK treasures. 3. The three Billly Goats Gruff crossed over the BLANK bridge.
asked by Jaqob 
physics
A tennis ball is shot vertically upward from the surface of an atmospherefree planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. What is the magnitude of the acceleration
asked by Kate 
health
What three components of public and community health differ from individual health? Describe each component and provide examples from your life?
asked by shonda 
Spanish 1
In Spanish I need to ask what a friend is doing. Que haces?, correct except with accent over "e" If the friend is skating I could say Patino, correct? I need to ask a friend what they are doing so I would say Que haces? with accent over "e", correct But
asked by Jamie 
physics
Two instruments are playing musical note "A" (440 Hz). A beatnote with a frequency of 2.5 Hz is heard. Assuming that one instrument is playing the correct pitch, what is the frequency of the pitch played by the second instrument?
asked by laila 
Chemistry
Calculate the amount (volume) of 6.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 150 mg of 9fluorenol to 9fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.
asked by Shannon 
Math
A bag contains five white marbles and one green marble. The marbles are randomly selected one at a time. What are the odds of picking the green marble on the first selection?
asked by Briella 
Physics
A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 65 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the
asked by Megan 
physics
"Charges of 2.00uc and 3.00uc are located in a coordinate plane at(2.00cm, 5.00 cm) and (3.00cm, 2.00cm) respectively. calculate the magnitude and direction of the electric field created by this pair at the origin. express your answer in both polar and
asked by seahill 
chemistry 12
How many milliliters of 0.1350 M HCl(aq) will react with 0.066 mol of KMnO4(aq)?
asked by brianna white 
physics
A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate? 2.A physicist attempts to push the crate up the
asked by madaline 
English
What connections between education and freedom does Douglass make in this except from his autobiography? what does it means?
asked by Terry 
physics
A phone cord is 4.75 m long. The cord has a mass of 0.200 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.900 s. What is the tension in the cord?
asked by gilbert 
Calculus
Recorded data indicates that on a recent date t hours past midnight, the temperature at Logan airport was f(t) = 14sin(1/3t2) + 60 degrees Fahrenheit. What was the average temperature between 9 am and noon?
asked by Aviana 
Calculus
a)Find the average value of f(x) = ex over the interval [0,k] b)What happens to the average value of f on [0,k] as k approaches infinity
asked by Rayyan 
geometry
Two circles of equal radius intersect each other such that each circle passes through the center of the other circle. Find the equation for the perimeter of this figure.
asked by Leah 
Chem
Consider a glass of 277 mL of water at 25°C. Calculate the mass of ice at 15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL. I have no idea how to
asked by Don 
Physical science
List the charge, mass, and location of each of the three subatomic particles found within atoms
asked by Anonymous 
ALgebra...plz help
If the tens digit of a twodigit number is subtracted from the units digit, the difference is 8. The number with the digits reversed is 10 more than nine times the units digit of the original number. Find the number.
asked by Anonymous 
chem
A sample of air contains 14.5 µg/m3 of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 11 feet by 13.9 feet by 17.5 feet? Answer in units of atoms.
asked by pho le 
algebra2
What is the value of x in the solution to the system y = 4x + 3 and 3x + 2y = 16? (Round to the nearest integer if necessary.)
asked by meghan 
Hi570ryhistory
Question 2. Is the “Columbian Exchange” a unique event, or have similar events occurred throughout world history? Is there a point at which a difference in scale – the sheer quantity of biota that travel between widely separated areas – makes such
asked by n33d h3Lp 
Math
The tip of the minute hand of Boston's Custom House Tower clock travels 6ft. 10 in. in 5 minutes.How long is the minute hand ?
asked by Nataliestom House T 
geometry
if a polygon has 53 sides, what will the total number of degrees (i.e. the total sum of interior angles) in this polygon
asked by zyan 
social studies
why is it a good time to shear sheep in the spring? so they don't get overheated in the summer. what work does sheep dog do? sheep dog help herd the sheep when they need to be moved. Sheep dogs separate a sick sheep from flock or group of sheep. why is
asked by 3 grade 
Math
At Chaniel's school, one cafeteria helper is chosen from each class by a random drawing. In Chaniel's class, the probability of the chosen person being taller that five feet is 1/5. Find the odds in favor of the chosen person being taller than five feet.
asked by Briella 
physics
There is a box attached to a spring. The spring has a spring constant of 39 N/m. The ì between the box and the surface is 0.3. The box has a mass of 1 kg. What is the maximum distance that the spring can be stretched from equilibrium before the box begins
asked by Kendall 
psychology
Brain teaser help please! Bedspread Agent and also ii_________ii oo oo
asked by Stacy 
Algebra is my answer right
Use the rational zeros theorem to list all possible rational zeros of the following. 2x^3x^24x5 I got +1,+5+,5/2,+1/2 Be sure that no value in your list appears more than once.
asked by Jen 
physics
A water skier, moving at a speed of 6.42 m/s, is being pulled by a tow rope that makes an angle of 39.7 ° with respect to the velocity of the boat (see the drawing). The tow rope is parallel to the water. The skier is moving in the same direction as the
asked by bam 
pre algebra
Mr Chee deposited $80 into his checking account. Then, after writing a $23 check for gas and a $90 check for his child's day care, the balance in his account was $67. How much was in his account before he made the deposit? How would you solve and check the
asked by Amber shall 
math
A circle is inscribed in a square whose perimeter is 40 cm, what is the diameter of the circle?
asked by Fabe 
english
What is 7 letter word for finished. 3rd letter is R and 5th letter is U
asked by jack 
Math
A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now
asked by James 
Digit Problems
If the tens digit of a twodigit number is subtracted from the units digit, the difference is 8. The number with the digits reversed is 10 more than nine times the units digit of the original number. Find the number.
asked by samm 
JOB INTERVIEW QUESTIONS
You’ve recently completed a tour and now it’s time to write the customer a ‘Thank you’ note. Here’s the customer information: Name  Joe Smith Tour  Conducted in Apt. 1107 with a 2bed 2bath Interests  Pool, 24hour fitness center, second
asked by HELP!!!! 
Finance
You deposit a single amount of $50,000 in a savings account that pays 7.6% annual interest (compounded quarterly). How much will you have at the end of four and a half years?
asked by FinanceQ 
math
I am so bad at word problems! Help me find out how to figure this one out. 1/5 of the boys are absent and 2/5 of the girls are absent in Drew’s class. Bert thinks that you multiply, so his answer is 2/5 of the class are out. Elmo thinks that means 3/5 of
asked by Malena 
math
find the product to :5.7*17.3* 651*387*0*82.1= key:the star signs are sign of multiplication.
asked by cindy 
Business
I am still not able to get this: These are all factors of production: natural resources, human resource and, capital resources, I have to give five examples of each that go into the production of an automobile. Is there any sites that could help me with
asked by Anonymous 
Finance
If an investment of $5,000 today earns 5% in each of the next five years, and then earns 7% per year for five years after that, how much will the investment be worth at the end of the ten years?
asked by help w/ business 
Stats
Among 15,378 Delta airline passengers randomly selected, 3 were bumped from a flight against there wishes (based on data from the us dept of transportation) find the probability that a random selected passenger is involuntarily bumped. Is such bumping
asked by Help please! 
chemistry
what volume of water at 4 degrees Celsius can be held in a cube whose edge is 3.0cm long?
asked by the yavull 
Math
Prove the following vector relation: V * (pvv) = pv * vV + vV * (pv) Note: Multiplication sign is supposed to be a dot, both v's are vectors, and V is the del operator
asked by Jamie 
world history
What group of people favored cooperation with the Romans?
asked by jon 
Stats
The time for an emergency medical squad to arrive at the sports center at the edge of a particular town is normally distributed with mean 17 minutes and standard deviation 3 minutes. What is the probability that it will take the medical squad more than 22
asked by Ryan 
pre algebra
A college bookstore ordered 6 boxes of red pens. The store sold 32 red pens last week and 35 red pens this week. Five pens were left on the shelf. How many pens were in the box? How would you solve it and check answer into the original problem?
asked by Amber shall 
Algebra 2 Could use help asap
I really am trying to work these problems out on my own. Please help If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (fg) (x) (3x^2)  (1/6+x) 3x^2x6 x is all real
asked by Sam 
Chemistry
A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this
asked by Paul 
physics
"Charges of 2.00uc and 3.00uc are located in a coordinate plane at(2.00cm, 5.00 cm) and (3.00cm, 2.00cm) respectively. calculate the magnitude and direction of the electric field created by this pair at the origin. express your answer in both polar and
asked by seahill 
Financial Accounting
From the information that follows, prepare an income statement and balance sheet for ABC Management Consulting for presentation at the annual board of directors meeting. Use proper formatting of financial statements by reviewing the various illustrations
asked by elfida 
English
Hello. Please help me with the sentence (is it normal English?): There was captured a ship in the Indian Ocean. Thank you very much.
asked by Ilma 
college
The perimeter of a rectangle is 62 meters. The length is 1 meter more than four times the width. What is the area of the rectangle, in square meters?
asked by Anonymous 
Biochemistry DR.BOB
How many grams of NaOH(Mr 40) must be added to 100 ml of 0.1M H3PO4 to create phosphate buffer, pH 7.0? I know I'm using HHequation. H3PO4, pka1=2.12, pka2=7.21, pka3=12.32. Heres what I got: pH=Pka+ log HPO4/H3PO4HPO4 7.0=7.21 + log HPO4/.001HPO4 is
asked by Dilk 
chemistry
a mixture of 1.00 grams hydrogen gas and 1.00 grams helium is placed in a 1.00 L container at 27 degrees cesius. Calculate the partial pressure and total pressure
asked by Anonymous 
math (comparing ratios)
the question says →4 feet to 4 inches and i have to do it in simplest form
asked by alejandra 
Math
Not sure how to solve this problem??? X + y = 150 .30x +.60=75
asked by Keenan white 
math
write an equation that represents a way to break down 18
asked by Evan 
Math
Maxie counted her dimes,when she put them in a groups of 4 she had 2 left over, groups of 5 1 left over. What is the smallest number of dimes she could have over if she has more than 10
asked by Eleana M 
Calculus
The level of air pollution a distance x miles from a tire factory is given by L(x) = e0.1x + 1/x2 What is the average level of pollution between 10 and 20 miles from the factory?
asked by Aryan 
Algebra
logx1/64=3 Solve for x
asked by Jen 
mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
asked by Susie 
mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
asked by Susie 
algabra
What is an expression to simplify using at least three of the following? Groupings: Parenthesis, brackets, or braces Exponents Multiplication or division Addition or subtraction
asked by kathy 
Physics
A car travels 2.06 km in the xdirection, then turns left 70.3 degrees to the original direction and travels an additional distance of 4.23 km. Calculate the x component of the car’s net displacement. Let : d1 = 2.06 km, theta = 70.3 degrees , and d2 =
asked by Samuel 
social studies
explain how patriots and loyalists viewed the american revolution
asked by skyler 
chemistry
balanced chemical equation for m(s) + n^(x+) (aq) > M^(y+)(aq) + N(s)
asked by alex 
chemistry
What is the correct balanced redox reaction for the cell shown below?Fe(s)  Fe2+(aq)  Co2+(aq) Co3+(aq)  Pt
asked by Anonymous 
Math
a building cast a 235 ft shadow along the ground. the angle of the sun's ray with the ground is 24 degrees. How tall is the building?
asked by Jenna 
Spelling
Man woman curved
asked by Ana 
Stats
The time for an emergency medical squad to arrive at the sports center at the edge of a particular town is normally distributed with mean 17 minutes and standard deviation 3 minutes. What is the probability that it will take the medical squad more than 22
asked by Ryan 
Statistics
Find the probability when A. k = 2 and ë = 0.01 for Poisson distribution B. p = 0.01 and k = 2 for geometric distribution C. Repeat (b) when binomial distribution is used and n = 10
asked by Nathan 
physics
A fox fleeing from a hunter encounters a 0.625 m tall fence and attempts to jump it. The fox jumps with an initial velocity of 7.75 m/s at an angle of 45.0°, beginning the jump 1.82 m from the fence. By how much does the fox clear the fence? Treat the fox
asked by Anonymous 
math
the horizontal,vertical,and diagonal columns of a magic 9 square box all add to the same sum. use the digits 19 one time each to make a magic square.
asked by cindy 
PHYSICS
Is the weight of a body the same thing as its mass? Discuss briefly. Is the weight of a body constant at all places on the earth? is the mass?
asked by Anonymous 
trigonometry repost
Reduce (csc^2 x  sec^2 X) to an expression containing only tan x. (is this correct?) csc x = 1/sin x sec x = 1/cos x tan x = 1/cot x sin^2 x + cos^2 x = 1 1 + cot^2 x = csc^2 x tan^2 x + 1 = sec^2 x csc^2 x  sec^2 x = 1 + cot^2 x  (1 + tan^2 x) = cot^2
asked by Anonymous 
English
Do you ever use “a”/an in front of food when you order it in a restaurant? I hope you can have a look at the following orders and tell me whether or not they sound better with the indefinite article. Thank you. I'll have ... pasta with clams and
asked by Franco 
chemistry
if you start with 100mg of radioactive material that has a half life of one hour, how many mg's of radioactive material would you have in 10.2284952 hours?
asked by carlos 
finance
Rob has $1,000 to invest for 120 days and is considering two options. Option 1: He can invest the money in a 120day GIC paying simple interest of 4.48%. Option 2: He can invest the money in a 60day GIC paying simple interest of 4.50% and then reinvest
asked by adam 
chemistry 12
How many milliliters of 0.1350 M HCl(aq) will react with 0.066 mol of KMnO4(aq)?
asked by brianna white 
home economics
explain principles and elements of design?
asked by janille 
Math
A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.
asked by Ash 
health
i also need the names of the different fast food so i can research there ingrdients. thank you
asked by grade 5 
8th grade science
Can a secondary consumer be eaten by another secondary consumer? Thanks! :)
asked by Lina 
probability
The odds against Paul Phillips winning the 100 yard dash are 7:2. Determine the probability that: • a) Paul wins. • b) Paul does not win. How do I set this up to find out the equation/answer?
asked by Madison 
child care
1. Which one of the following statements uses language best to present a clear picture of a child's behavior? A. Leslie ran to the door, greeting his mother with open arms. B. Carolyn carried her books to the table. C. Marshall handed the truck to Jacob.
asked by dawn 
pharmacology
You need to compound Drug X to make a concentration 100 mg/ml and a total quantity of 50 mL. How many 250 mg tablets must you dissolve in liquid to make the compound?
asked by chelsea 
calculus
what is the integral of ( x^2 / (x+1)dx
asked by anna 
Economics
Are chickens and and cows examples of capital goods? Capital goods are items used in the creation of other goods. Because chickens create eggs and cows make milk, are they consumer goods?
asked by Ed 
Math
A change purse contains an equal number of pennies, nickels, and dimes. The total value of the coins is 112 cents. How many coins of each type does the purse contain?
asked by Joe 
Math
An executive in an engineering firm earns a monthly salary plus a Christmas bonus of 5300 dollars. If she earns a total of 98700 dollars per year, what is her monthly salary in dollars?
asked by Scott 
Social Studies
What were the two levels of government in New York in the late 1760s?
asked by Anonymous 
physics
engine falls from sky at a horizontal speed of 280 m/s and a altitude of 4500, whats horizontal distance the engine will travel before it hits the ground
asked by terrance 
PreCalculus
Evaliuate the differnce quotient f(x+h)f(x)/ h for f(x) = X^2 + 2x  2 currently i have done (x+h)^2 + 2(x+h)2  x^22x  2 / h the answer is 2x+h+2 but each time i try to work on the problem i don't get this answer... thanks in advance
asked by K.C 
bus
Is it possible for companies both to maximize financial value for shareholders and to act responsibly in the communities in which they operate, to treat their employees, customers, and suppliers well, and to engage in activities that are good for the
asked by boo 
geometry
If I leave the first building going to the second building, what would be the location of the half way point on the grid?
asked by jasmine 
Math
Algebra 2: How do I factor this expression? 4x^46x^2+2
asked by Mike 
trigonometry
this question confused me can you please show me how its done. Reduce (csc^2 x  sec^2 X) to an expression containing only tan x.
asked by Anonymous 
Physics
What is the pressure increase in the fluid in a syringe when a force of 34.5 N is applied to the circular piston of the syringe, which has a diameter of 10.2 mm?
asked by Sydney 
math
i have 3 kg 4 kg and 5 kg on one side and 5 kg and 7 kg on the other side which two tiles do i swap to have the same amount on both sides
asked by emily 
math
i have 3 kg 4 kg and 5 kg on one side and 5 kg and 7 kg on the other side which two tiles do i swap to have the same amount on both sides
asked by emily 
algabra
I take a trip in my car. I want to go 960 miles in one day. The time t, in hours, that it takes to travel 960 miles is given. I will be going 70 or 75 miles an hour so the speed is r. How long will it take me to get to where I am going?
asked by kathy 
phi 103
mrs orlof teaches 2 history classes one in the afternoon and one in the morining yesturday she gave the same test to both classses anyone who failed the test must retake since a greater percentage of students who took the morining test failed the test than
asked by shane 
Language Arts
How can you display Harriet Tubman character traits in school, at home, and at play?
asked by Alex 
Mat 157
How many threesymbol codes (letterletternumber) can be made from the letters, S,P,Y, and one digit from the set {0,1,2,...,9] without repetition?
asked by Susie 
CHEMISTRY
GIVE ENTHALPY PROFILE DIAGRAMS TO ILLUSTRATE ENDOTHERMIC AND EXOTHERMIC REACTIONS.INCLUDE AN EXPLANATION OF CONCEPTS SUCH AS ENTHALP CHANGE, ACTIVATION ENERGY AND CATALYSIS. EXPLAIN HOW THE PROCESSES OF BOND BREAKKAGE AND FORMATION DETERMINE THE ENTHALPY
asked by ABRAHAM 
MATHAlgebra
please show/explain what I have to do to work the below problem: p/3 x 24 = 16 p=___________ thank you
asked by Aleksander from Guam 
sorry left out a "x"
If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (fg) (x) (3^2)  (1/6+x) 3^2 6x x is all real numbers and x is not equal to 6 (f x g) (x) I do not understand (f/g)
asked by Samantha 
physics
lava ball is shot straight up at 28m/s what is speed after 3 seconds
asked by mike 
MATH
WHAT IS THE LCM OF 21X TO THE 7TH POWER AND 147X TO THE 9TH POWER
asked by NICOLE 
chem
14 carat gold has a purity of 58.3%. How many moles of gold are in 137 grams of 14 carat gold? Answer in units of moles.
asked by pho le 
algabra
What are the steps of the order of operations? Why is it important that you follow the steps rather than solve the problem from left to right?
asked by kathy 
STATS. PLease help
The time for an emergency medical squad to arrive at the sports center at the edge of a particular town is normally distributed with mean 17 minutes and standard deviation 3 minutes. What is the probability that it will take the medical squad more than 22
asked by Ryan 
pre algebra
When twice a number is decreased by 8, the result is the number increased by 7. How would you solve it and check answer into the original problem?
asked by Amber shall 
Com 170
Compare and contrast your abilities as an academic writer opposed to when you began your studies at your University. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make
asked by Mistsgirl 
Math
what is the simplest form of 16/19
asked by lasa 
Kinematics
A car has an acceleration of 2 m/s2. What is its speed 3 seconds after it starts moving?
asked by Randy 
Chemistry
why is da value of heat of neutralization of NaOH AND HF is higher than that of its constant value??
asked by Syed 
Math
What is Add 1/2x^2 + 1/2x + 1/5 3/5x^2  4/5x + 1/3
asked by Ryan 
geometry
if a polygon has 53 sides, what will the total number of degrees (i,e. the total number of interior angles) in this polygon
asked by zyan 
English
Hi! How to practice numbers from 112 in English? I have only one student and he is learning English as a foreign language(8 years old) So any advice how to practice numbers, days in the week, colors, seasons and similar?
asked by tee 
chemistry
at 25˚c the density of water is 0.997g/cm³,the density of ice at 10˚c is 0.917g/cm³. if a soda can volume is 240 ml is filled then frozen at 10˚c, what volume does solid occupy?
asked by tom 
Algebra
(4x^6)(3x^9)(6x^7)
asked by Kim 
Statistics and Probability
The following table shows the density of the random variable X. x 1 2 3 4 5 6 7 p(x) 0.03 0.01 0.04 0.3 0.3 0.1 0.01 8 ? A. Find P(8) B. Find P(3 ¡Ü X ¡Ü 5) C. Find P(X ¡Ü 4) and P (X < 4). Are the probalities the same? D. Find F(3)and F(10)
asked by Nathan 
science
does an object move easier over a smooth or rough surface
asked by mauricio 
Reference Letter
I have to imagine myself as an adult who knows me as a student.Then I have to create a made up letter of reference for myself based on what I hope someone would honestly be able to write about me in the future. SO basically Im that teacher.. Paragraph 1.
asked by Anonymous 
English
Can you please check if the indefinite article is correct? I followed your advice. 1) I'll have a : chicken breast, a roast leg of lamb, a sirloin steak, a boiled egg, a cod, a plaice, a sole, a halflitre bottle of waer no article with: braised
asked by Franco 
Geo
Line jk bisects line mn at point j. find mn if jk = 6ft 3/4?
asked by tyeson 
writing
Write a paragraph about the Syrian car 'Sham'
asked by sally 
finance
I'm not sure how to approach this problem What is the fair value of a 10year annuity of $5,000 whose payment will start five years from now and last until fourteen years from now (10 payments), if the interest rate is 8%?
asked by help w/ business 
5th grade math
How many verticles does a cube and pyramid have? do they both have eight. also if you have a pattern that starts with one block and is increased by three cubes each time what is the tenth term in this pattern? 28 or 31
asked by jill 
math
What is the largest three digit number you can write without using a 9 in the hundreds place or ones place, or an 8 in the tens place?
asked by Xavier 
Calc
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the xaxis. y = sin x, y = 0, x = 0 I just need help setting up the formula. So far I got V= the integral from 0 to pi of [(sin²x)  0²]dx. Is
asked by Erica 
English
1. One dancer had (risen, raised) a snake above his head for the crowd to see. 2.The growing corn (rises, raises) high in the Hopi country of Arizona. 3.In a moment, dad had (rose, raised) his hat to shade my face from the sun. 4.How long has it (laid,
asked by Hayden 
English
Thank you very much. Here are some more sentences I'm not sure of. 1) Jason was very rude because he pushed Mickey. Mickey dropped the milkshake on the floor. Storm picked up the milkshake and poured it over Jason. The manager fired them both. 2)When I go
asked by Franco 
Chemistry
What are the products for the combustion of a a hydrocarbon.
asked by Nick 
math
a rectangle has and area of 20 cm second power. list all possible sets of dimensions it could have.
asked by Anonymous 
English
I forgot to include the very last sentences of the day. Thank you. 1) Do you dress your salad with oil and vinegar? Do you season your cutlet with salt and pepper? Do you usually serve pasta with a (?) meat sauce? 2) How do you call the dish you eat your
asked by Franco 
algebra
can you help me breakup this mathematical phrase 56 – b = 2011
asked by kathy 
math
scientific notation:provide thhe numeric value 4.9*10*10
asked by koko 
math
250mg is equal to what percent of a gram or grams
asked by todd 
Calculus
Consider the function y=7+5cos(8x) What is the amplitude? What is the period? What is the largest value the graph takes?
asked by Sachenka 
Math
the mean of 4 numbers is 31. What is the fourth number if 3 of the numbers are 37,15,22
asked by Evan 
finance
For this assignment, imagine you are the accountant for Floral Design Company and are assigned to prepare the monthly bank reconciliation. Complete this task, by using the data below: 1. Complete the bank reconciliation for the month of June. 2. Prepare
asked by giuseppe 
physics
Two masses m and 2m are attached with each other by a rope passing over a frictionless and massless pulley. If the pulley is accelerated upwards with an acceleration ‘a’, what is the value of T?
asked by nikhil 
Finance
Imagine the CFO of a company has asked you, the auditor, to review the internal controls for cash receipts and to evaluate its cash management of accounts. Prepare a one page letter to the CFO addressing the following questions: 1. Why are internal
asked by giuseppe 
Finance
From the information that follows, prepare an income statement and balance sheet for ABC Management Consulting for presentation at the annual board of directors meeting. Use proper formatting of financial statements by reviewing the various illustrations
asked by giuseppe 
Algebra 2
If f(x)=3^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3^2) + (1/6+x) x is all real numbers and x is not equal to 6 (fg) (x) (3^2)  (1/6+x) 3^2 6x x is all real numbers and x is not equal to 6 (f x g) (x) I do not understand (f/g)
asked by Samantha 
Algebra B
What is 1.11211211111221312211131122211113213211 What are the next digits. I saw a diagram but it was in french, so I did not understand the progression.
asked by Nancy 
Math
Calculate the limit limit x>infinity 2x^2 + 100 / x^2 +1 I am not sure how to do this.
asked by Hannah 
math
i can i solve the equation for x. mx+e=t
asked by carmen 
chemistry
when 15.12 ml of 0.1194 M NaOH is added to 25.00 ml of 0.1246 M HX ( an unknown weak acid), the resulting pH is 5.9. What is the Ka of the unknown acid?
asked by kelis 
algebra
not sure if I did this right 14+(20x) is greater than 146x
asked by so lost 
algebra
7x22=24 1/3 could someone help me Im confused
asked by chris 
Physics
The drawing shows a large cube (mass=42 kg) being accelerated across a horizontal table by a horizontal force P. The coefficient of kinetic friction between the table and large cube is 0.24. A small cube (mass= 5.0 kg) is in contact with the front surface
asked by Anonymous 
chemistry
what would happen if PbI2 were to be ingested into your blood stream?
asked by isabel 
english
how is the Grasshopper in "The Ant and the Grasshopper" and the Bat"The Bat,the Birds, and the Beasts" similar?
asked by mai nguyen 
Algebra II
How can equations and inequalities help a business maximize profit or minimize cost?
asked by C 
science
I'm having trouble with this homework question, I don't really trust sites like these but I don't have any other choice, so here it goes: The sound of speed in water(25 degrees Celsius) is traveling at 1,500m/s. How far can sound travel in water in 2.5
asked by Bailey 
English
In my previous post I forgot to include a question. I'm doubtful about the use of certain expressions I haven't found in my grammar reference book. I hope you can have a look at them. 1) We are leaving from Alba (to Genova or for Genoa) on 23. March at
asked by Franco 
Algebra is my answer right
Simplify. (2b^4 c^6)^5 I get b^20/32c^30 Is that right? Write your answer using only positive exponents.
asked by Jen 
Spanish 1
In Spanish I need to ask what a friend is doing. Que haces?, correct except with accent over "e" If the friend is skating I could say Patino, correct? I need to ask a friend what they are doing so I would say Que haces? with accent over "e", correct But
asked by Jamie 
Algebra
Solve. (7+u)(3u1)=0 (If there is more than one solution, separate them with commas.)
asked by Adam 
algebra
convert decimal notation 5.166x10^8
asked by Kim 
algebra
(x^8+8)(x^9^2)
asked by Kim 
math
how many different rectanagles exist which have whole numbers as the length and width,and also have an area of 36sq.cm?
asked by cindy 
chemistry
You discover that the volume of the material is 150 mL. Its mass is is 1701g. What is its density?
asked by micah 
Algebra
Solve the following inequality. (x4/x+2)>0 Write your answer using interval notation.
asked by Jena 
chemistry
4. Use the pressure of the butane gas (your answer from question #3 above), along with the temperature and volume recorded in the lab, to determine the moles of butane gas collected in the lab. You will use the ideal gas law (and the ideal gas constant, R)
asked by madison 
Finance
1. You deposit $100,000 at an annual rate of 5.6%. If interest is accrued following continuous compounding, how much will you have accumulated by the end of three and a half years?
asked by FinanceHelp 
Finance
What is the present value of the following payments? The interest rate is 8.5%. $200 $200 $200 $200 $200+$1,000 IIIIII 0 1 2 3 4 5
asked by FinanceQ 
finance help
I cannot figure out how to do this. Any help would be appreciated. What is the fair value of a project if it returns $5,000 after one year and $2,000 after two years? The interest rate is 9%
asked by help please 
trig
how do you explain y=2 cos(1 half x)
asked by gary 
8th grade science
I need help figuring out this on a food web. It goes from a flower to a butterfly to a frog to the bird to a coyote. Now I have to label them. I got them all however i do not know what the frog and bird is. HELP!! :)
asked by Lina 
history
Is there a point at which a difference in scale – the sheer quantity of biota that travel between widely separated areas – makes such an exchange radically different than the relatively routine exchange of, for example, flu viruses between populations?
asked by n33d h3Lp 
Algebraproblem restated
Solve the following inequality. (x4)/(x+2)>0 Write your answer using interval notation
asked by Jena 
math
MUhHow are qaudrillaterls and squares are alike
asked by kiara gidson 
Finance
I have been promised a $25,000 car when i graduate in four years. If money earns 7% interest, what is my promise worth now?
asked by Finance 
Physical Science
If a person is traveling at a rate of seventy five miles per hour in a straight line, how far would they travel in three seconds?
asked by J 
social studies
What are the outcomes of the French and Indian War?
asked by Rasheeda 
math
what does m stand for in the conversion table?
asked by [hamlet] 
calculus  integration
A baseball is thrown upward from a height of 2m with an initial velocity of 10m/s. Determine its maximum height. S(0) = 2m S'(0) = 10m/s S'(t) = 32t + 10 S(t) = 16t^2 + 10t + 2 I know that if you equal s(t) = 0 you get time, but how do I get maximum
asked by Gabriel 
Algebra
Solve the following inequality. (x4)/(x+2)>0 Write your answer using interval notation
asked by Jena 
Drama
The best in this kind are but shadows is
asked by Kimberly Williams 
Calculus
If b is a positive constant, find the average value of the function f defined by f(x) = x2 + bx + 1 on the interval [1,1]
asked by Ishaan 
physics
A 59.0Ω resistor is connected in parallel with a 116.0Ω resistor. This parallel group is connected in series with a 15.0Ω resistor. The total combination is connected across a 15.0V battery. (a) Find the current in the 116.0Ω resistor. ______A (b)
asked by ashley 
Math
If f(x)=3x^2 g(x)= 1/6+x find the following and give the domain (f+g) (x) (3x^2) + (1/6+x) x is all real numbers and x is not equal to 6 (fg) (x) (3x^2)  (1/6+x) 3x^2 6x x is all real numbers and x is not equal to 6 (f x g) (x) I do not understand
asked by Samantha 
english
I need to compare and contrast the themes of Andrew Marvell's "To His Coy Mistress" and Christopher Marlowe's "The Passionate Shepherd to His Love." Where do I start?
asked by Anna 
mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
asked by Susie 
mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?
asked by Susie 
Allied health
I am doing a research project and I was wondering if you would know of any good websites that have information other than AMA or HIPPA or Opinion with information on the Confidentiality in Allied Health. My first question in this report is, 1. Should
asked by Betts 
geometry
Given two equilateral triangles with side lengths of 9 in and 15 in, what is the scale factor between them?
asked by tamber 
Algebra is my answer right
Graph the Circle x^2+y^2+4x2y20=0 I get: (x^2+4x)+(y^22y)=20 (x^2+4x+4)+(y^22y+1)=20+16+4 (x+2)^+(y1)^2=(40/2)^2 But I don't think its right can you help me with what I did wrong? Thanks
asked by Jen 
Science
How we can create a vaccume more than 760 mmHg ?
asked by S patel (challange) 
chemistry
A student conducts this experiment and finds the boiling point of the unknown to be 80 ± 3 °C. Use the table in the Physical Properties experiment to select all of the following compounds which might be the unknown
asked by karli 
chemistry
A student conducts this experiment and finds the boiling point of the unknown to be 80 ± 3 °C. Use the table in the Physical Properties experiment to select all of the following compounds which might be the unknown
asked by karli 
calculus
lim (x^36)/(x^k+3) x>infinity
asked by billy 
Physical Science
Who discovered Respiration?..Ever single time i google it, it comes up as cellular respiration..i need breathing respiration..please help me!!!!! ~;D~
asked by Sabrina 
English 101
Do you like better Roger Ebert or Elvis Mitchell ? why?
asked by research 
fractions
what is 2/3 of 180/3
asked by tina 
math
mr.mcmathy needs 129 seat for his 5th grade program .if the seats are arranged in ranged in rows of 10 seats ,how many rows will he need?
asked by cindy 
health
unhealthy fast food you can find list ingredents
asked by saira 
math
you offer to do the dishes for your family for the next month .you suggest that they canpay you in one of these three ways :a.whta is the chance you will pull out a red card? b.what is the chance you will pull out an "a" card?
asked by cindy 
English
I forgot to include the following sentences. Thank you. 1) I can't come. I have to study for the school (?), I have to study physics for tomorrow's test, look after my brother, clean my room, go the dentist's. 2)I have already an appointment with Peter
asked by Franco 
Human services
Can you please explain to me what a Rite of Passage Paper is? Write a 1,400 to 1,750word paper in which you create two modern rite of passages, one for an adolescent girl and one for an adolescent boy, that address the social demands facing adolescents
asked by Patiance 
Science
when a cell has a specific function, it is called what?
asked by Nick 
physical
why should a institions have a physical activity requirements for all students?
asked by terrishea 
science
Determineyour distance traveled and displacement if you walk 100m forward and then 35m back
asked by Isaiah 
Algebra
Solve the following inequality. (x4)/(x+2)>0 Write your answer using interval notation
asked by Jena 
chmistry
if the %T for a sample is 80 at 50nm, what is the value of A
asked by bilkisu 
chmistry
if the %T for a sample is 80 at 50nm, what is the value of A
asked by bilkisu 
English
What are the effects of new media technologies on youth culture? Can you give me some example where it has been good and where it has been bad?
asked by alex 
algebra
is the time you take to go to the library a function of the distance to the library
asked by Anonymous 
Finance
I have been promised a $25,000 car when i graduate in four years. If money earns 7% interest, what is my promise worth now?
asked by Finance 
accounting
how can I solve this problem stockholders invest $25,000 cash in the corporation
asked by Jo 
psychology
Brain teaser help please! Bedspread Agent and also ii_________ii oo oo
asked by Stacy 
History
who was alleys with Britain during the war of 1812?
asked by Derrick 
English
Compare and contrast your abilities as an opposed to when you began your studies at your University. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make in the future?
asked by Mistsgirl 
math
5/7 1/2 (1/3 + 3/7)
asked by lisa 
chem
How many atoms of mercury are present in 3.2 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc.
asked by pho le 
Algebra B
When a root is not a real number, what kind of number is it?
asked by Nancy