Questions Asked on
November 25, 2015

Ciencias
ocasionalmente los hospitales tienen brote de infecciones por la bacteria estafilococos la cual reciste el tratamiento con antibiótico que una vez fuera efectivo. ¿cual es la explicación más aceptable para esta situación?
asked by Lucy 
math
The marginal cost of production (in Rs) is 3 + x/3000 + e^(0.03x), where x denotes the number of units. The cost of producing 100th unit is:
asked by asad 
Science
Why the átomo never seen before
asked by Lucy 
Chemistry
1.)An ammonia/ammonium buffer solution contains 0.35 M NH3 and 0.72 M NH4+. The Kb value of ammonia is 1.8×10−5. Calculate the pH of this buffer. 2.) Nitrous acid has a Ka of 4.5×10−4. What is the pH of a buffer solution containing 0.15 M HNO2 and
asked by LuigiR 
English
Agnostic: Religous:: Salesperson:Persuasive Secretary: telephone Hermit:social corn: crop For each item, figure out the relationship between these two words? Can you help explain this to me
asked by jennifer 
Maths
The temperature is shown at 6:00am. It is rising at one degree every thirty minutes. At this rate, it will be 20 degrees at what time?
asked by Claudia 
English
Can you explain to me how to do this Each item below starts with a pair of words in CAPITAL LETTERS. For each item, figure out the relationship between these two words. Then decide which choice of the choices (A, B, C, or D) expresses a similar
asked by jennifer 
English
can u guys help me add some adverbs (6 or 10) to this story that i summarized thanks in advance!! (^_^): Black, cloudy nighttime hung over the backdrop of the house. The grey, ramshackle walls of the house looked worn and forbidding, and the dilapidated
asked by brett 
math
15/box is a fraction that lies between 1/7 and 1/8. what is the missing whole number in the box?
asked by kima 
math
A company produces x units of output at a total cost of 1/3 x^3 – 18x^2 + 160x. Output at which average cost is equal to marginal cost is:
asked by honey 
Maths
Mr Gosh purchased wrist watches worth Rs 60000. He sold onethird of them at a profit of 20% and remaining at a loss of 5%. Calculate his overall profit or loss percentage.
asked by Anuja 
chemistry
explain how you would obtain solid lead carbonate from a mixture of lead carbonate and sodium carbonate powder
asked by diane 
Physics
How does using the concept of resonance determine the speed of sound an in experiment? In other words, I'm wondering how the concept of resonance works
asked by Emma 
Physics
In this sound interferometer, sound waves enter at A and travel to C via paths ABC and ADC. the intensity of the sound can be determined by the microphone placed at C. The length of the path ADC can be changed by a sliding tube. The frequency is fixed at a
asked by Claudia 
math
seven years ago, Mary was 6 times as old as Cora, In 1 year, she will be only twice as old as Cora. Find their present ages
asked by Nyx 
math
Jade's age now is the same as Timmy's five years hence. Timmy's age six years ago was half Jade's age now. Find the present age of each.
asked by Nyx 
Mathematics
A number is 8 more than another number. The product of these two numbers is 20. Find the numbers.
asked by Carah 
physics
formular for looking maximum speed reached
asked by mohamed 
PHYSICS
a 72N force accelerates mass m, by 5.0 m/s^2 the same force acts on another mass m2 and imparts to it an acceleration of 20.0 m/s^2. what acceleration will the same force impart to the two masses when they are joined?
asked by Camz 
electron theory and ohms law
what voltage must be applied to a 6.4ohm lamp filament to develop 20 amperes of current?
asked by roland 
Physical
At t = 0 s time a stone is thrown from the top of a cliff above a lake. Another stone is thrown down from the same point , 1.6 s later , with a initial velocity of 32.0 m / s. The two stones hit the water in one instant. Determine the cliff height.
asked by Michel 
electron theory and ohm law
if the 5ohm heater in problem 15 is placed with a 15ohm heater, what current will the 15ohm heater draw from the same power supply?
asked by roland 
math
Air is pumped into a spherical balloon at the rate of 20cm^3/s^1.find the rate of change of radius of the balloon when the radius is 6cm
asked by charles 
derivrtives
Find the derivative of d^2Y/dx^2 of y=e^2t and x=cost^2 and leave your answer in terms of x and y
asked by charles 
physics
water and glass with refractive index of 1.5 are interfaced.if the incident ray are from the water makes an angle 60 degrees with the normal.find the direction of the reflected and refracted rays(given that refractive index of glass to water=1.33)
asked by joe 
physics
Shows three boxes connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The mass of the boxes are mA = 5 kg, mB = 2 kg, and mC = 3kg. When the system is released from rest, Calculate (a) the
asked by Jay 
calculas
airplanes fly from left to right along the path y=1+(1/x)and can shoot their bullets in the tangent direction at creatures placed along the xaxis at x=1,2,3,4 and 5.determine whether a creature will be hit if the player shoots when the plane is at p(1,2)
asked by khalid 
Physics
Draw areal velocity versus time graph for Mars.
asked by Akshay 
Math
I am the product of 135 and decreased by 500. who am I?
asked by marcus 
Algebra
A page of print containing 144 square centimeters of printed region has a margin of 4 and 1/2 centimeters at the top and bottom and a matgin of 2 centimeters at the sides. What are the dimensions of the oage if the width across the page is four units of
asked by Arnee 
Algebra
A rectangular box is to be made from a piece of cardboard 6 cm wide and 14 cm long by cutting out squares of the same size from the four corners and turning up the sides. If the volume of the box is to be 40 cm^3, what should the length of the side of the
asked by Arnee 
Education
How are the “image of the child” and the “image of the teacher connected"?
asked by Travis 
algebra
The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.
asked by ehdz 
algebra
The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 66 cm. Find the dimensions of the rectangle.
asked by ehdz 
Physics
a 0.15 kg sample of Alloy is heated 540°C. it is then quickly placed in 400 g of H2O at 10°C which is contain in a 200 g aluminum cup. the final temperature of the mixture is 20. 5 °C. calculate the specific heat of alloy.
asked by Gelo 
Jenna
Write the correct form of ipse as it would be translated in the sentence. 1) The Roman boys themselves were accompanied to school by a paedagogus 2) I saw the girls themselves in the Forum Romanum. 3) I give heartiest accolades to Caesar himself. 4) By the
asked by Latin II 
french
Could you translate this question so I know what its asking? Tu trouves dix euros. Qu estce que tu as?
asked by jordan 
English
Do you agree or disagree with the statement children should begin studying a foreign languages as soon as they start school
asked by Grammar 
English
In "The Secret Life of Walter Mitty" the wife's character is most developed by A. expostion. B. her thoughts. C. Walter's words. D. her dialogue with Walter.**** Thank you
asked by BUBBLES 
English
We are reading the short story Superstitions out of the book "GreatBooks Roundtable". I am being test on a few questions and need some help! After her conversation with her mother, Frances most likely feels what? a) informed b) frightened c) comforted d)
asked by Victoria 
HEALTH PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1. The functions of the respiratory system are (select all that apply) A. to pump blood to your body B. to deliver oxygen to the body C. to remove carbon dioxide from the body D. to absorb nutrients 2. The domeshaped muscle that lies below the lungs and
asked by goldensparklegirl222 
help fast fast
analyze how islam spread among southeast asia trade routes
asked by shynice 
Mat 300/statistics
In how many ways can a committee consisting of 2 faculty members and 3 students be for there are 11 faculty members and 14 students eligible to serve on the committee?
asked by Cindy 
Chemistry
A sample of air was passed through an electrical discharge causing the following reaction N2(g) + O2(g)>2NO(g) . Assuming that 1.00 mole of air (78% N2, 21% O2) was originally present at 1.00 atm, determine the partial pressure (in atm) of NO at
asked by Anonymous 
Physics
Three charges are located along the x axis as shown in the drawing. The mass of the 1.2 uC is 4.0×10^9 kg. Determine the magnitude and direction of the acceleration of the 1.2 uC charge when it is allowed to move if the other two charges remain fixed.
asked by John 
Calculus 1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = cube root(x) , 0 ≤ x ≤ 27
asked by TayB 
Calculus 1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = x^−3, 2 ≤ x ≤ 5
asked by TayB 
Ashworth
Why are many fad diets considered unhealthy?
asked by melisa 
English/ Could you please verify my answer
1) WHICH OF THE FOLLOWING IS A COMPOUND SENTENCE? a) Butterflies and hummingbirds feed on the nectar of flowering plants. b) Because fraud is so common is some corporations, regulatory agencies are overworked. c) Because Viceroy butterflies migrate over
asked by Basti 
Physics
In a container of negligible mass, 0.100 kg of steam at 110°C and atmospheric pressure is added to 1.00 kg of water at 20.0°C. (a) If no heat is lost to the surroundings, what is the final temperature of the system? (b) At the final temperature, how many
asked by Margret 
maths
Help me on these questions! 1. The teacher's bill for €15 worth of copies and 8 English workbooks was €35. What did each workbook cost? 2. Patrick spent 30% of his money on a football and 60% of it on football boots. If Patrick had €3 left, how much
asked by liam 
maths
Helpp mee!!! I'm really stuck so I need help. Teresa has three times as much money as Rita. Between them they have €10. How much has Teresa?
asked by hazel 
entrepreneurship 1
My own bakery, but I don't know what to put for demographics, pyschographics, or buying pattern? Demographics: women 1548 years(we accept everyone but i believe this is my topic consumer),...... pyschographics: family oriented, someone who cares about
asked by anonymous 
Geometry 1 question
A(3,3) > A' is a glide reflection where the translation is (x,y) (x+5,y), and the line of reflection is y=1. What are the coordinates of A'? (2,3) (3,5) (5,1) (2,5) > is an arrow. I am not good on glide reflections and I'm very stuck on this one:(
asked by SkatingDJ 
which of these actions would most help a worker im
which of these actions would most help a worker improve their productivity? A: Finding a new job in a different field. B: Taking a training course related to her job. ****** C: Buying a laptop computer for home use. D: asking her employer to give her a
asked by Ashley 
Geometry
A dilation has center (0, 0, 0). Find the image of the point (1, 2, 0) for the scale factor of 3. Please help? Thanks
asked by SkatingDJ 
Pre Calculas
If you deposit $5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it
asked by Ryan 
Algebra
Steve made a business trip of 254 miles. He averaged 57 MPH for the first part and 56 MPH for the second part. If the trip took 4.5 hours, how long did he travel at each rate?
asked by Matt 
Statistics
3. For the following data set, the dependent variable {response) is the first variable. Choose the independent variables {predictors) as you judge appropriate. Use a spreadsheet or a statistical package (e.g., SPSS or SYSTAT or MIN1TAB) to perform the
asked by Shikha 
Social Studies
What does this graph suggest about the costs and benefits of balancing the budget? I have a bar graph that shows the following data: The title of the graph is "How Americans Want to Balance the Budget". Only with spending cuts: 20% Mostly with spending
asked by Ashley 
Pre Calculas
Need help Give an example of an exponential function that goes through the point (0,4) .
asked by Reese 
differential equations
Convert x''+ sin(x) = 0 into a first order system of equations. (x'' refers to the second derivative of x). I tried: y1 = sin(x) y2 = x' {y1' = cosx {y2' = sinx Not sure if I did it right.
asked by Sarah 
Physics
What is the mass of a copper wire that will give a wire, 0.20mm in diameter, a resistance of 400 ohms can you please show me the formulas
asked by John 
Chemistry
Write the formulas of the compounds formed by NH4+ with the following anions: CN, ClO3, SO42, H2PO4
asked by Kim 
Health (STD's)
Explain successful methods to prevent, detect, and treat communicable diseases. You don't have to give me the answer all I need is some good websites.
asked by Anonymous 
english
(1) Jack had been without a car since Monday. (2) The car needed a new battery, and Jack was broke. (3) Although he was embarrassed, Jack called his mother. (4) He felt he had no choice. (5) Fortunately, his mom was happy to help out. (6) She said she had
asked by lucy 
chemistry
how many molecules are present in a 750 ml of C6H12O6
asked by Anonymous 
Math
True or false: If a is any positive real number, the graph of y=a^x will go through the point (0,1). True or false: x^3+2x^2 is an exponential equation because it contains exponents. I got true for both of them is that right?
asked by Sam 
math
32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me
asked by jyoti 
math
Indicate the correct answer for the function. If (x)= x^3  3x^2 + 3x + 7, then f(x) is: a) Maximum b) Minimum c) Neither maximum or minimum d) not possible
asked by Ahmad Faraz 
math/ pre algebra
Lydia rode 243 miles in a three day bike trip. On the first day, Lydia rode 67 miles. On the second day, she rode 92 miles. How many miles per hour did she average on the third day if she rode for 7 hours?
asked by neftali 
math
Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.
asked by Anonymous 
Math 250
Locating a car from the 102nd floor observation deck of the empire state building, an observer spots his car at an angle of depression of 5 degrees. if the observation deck is 1250 feet high, how far is his car from the building?
asked by Eseta 
ENGLISH Correcting #5,6,8 & 9
5)Both Ada and Phil are evaluating their thesis statement, topic sentences, and evidence. If Ada finds that her essay doesn't have a thesis statement identifying the topic of the essay, Ada will reread the essay and decide what the main point of the essay.
asked by Basti 
physics
Explain two different reasons why fibreglass is used to fill the space between the concrete block and the metal casing.
asked by Fernando Guo 
English
Do you agree or disagree with the following statement children should begin stadying a foreign languages as soon as they start school.Why? Why not?
asked by kristen 
SCIENCE PLZ HELP
1. Compare the natural greenhouse effect with the humaninduced process
asked by coolguy456 
Chemistry
Automotive airbags inflate when sodium azide, NaN3, rapidly decomposes to its constituent elements according to the chemical equation, 2 NaN3 > 2 Na + 3 N2. How many grams of nitrogen are produced when 1000 milligrams of sodium azide decomposes?
asked by Sarah 
saint joshef
Given a planar electromagnetic wave in vacuum whose Bfield is denoted by Bx = 0, Bz = 0, B_y = 66.7 × ?10?^(8) sin 4?p?10?^6 (z3×?10?^8 t) Write an expression for the Efield. What are wavelength, speed and direction of motion of the disturbance?
asked by pankaj 
science
A man throws over a cliff and hears it strike at the bottom in 8 second. The temperature is 25 C. what are the two times ; the time that the stone travels and the time that sound travels ? what is the height of the cliff in meters?
asked by mohamed 
math
Write an equation of the line that passes through each pair of points (0,0) and (7,7)
asked by Cristal 
maths
Helpp mee!!! I'm really stuck so I need help. Teresa has three times as much money as Rita. Between them they have €10. How much has Teresa?
asked by hazel 
SCIENCE PLZ HELP
2. What are the greenhouse gases? Which one is the biggest concern?
asked by coolguy456 
Physics
How does using the concept of resonance determine the speed of sound an in experiment? In other words, I'm wondering how the concept of resonance works
asked by Emma 
Physics
The asteroid EROS has a mass of 7.4x10+15kg. A 103kg astronaut stands on the surface, 33km from the centre of the asteroid. What weight does she experience ? Give your answer in Newtons. Take the Gravitational constnat, G, to be 6.67x1011.
asked by Bill Nye 
coding
three quadrant hemorrhoidectomy icd 9
asked by jackie 
english
what is quotation marks?
asked by misty 
Social Studies
social studies
asked by Kaai97 
Math
The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the yintercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the
asked by Kyle 
math
A Company has introduced a new product whose annual demand will depend on price charged. The demand of the product is represented by the function q = 100,000 – 200p, (where p = price and q = quantity demanded annually). Studies indicate that total cost
asked by Haroon Gondal 
math
A company determines that the marginal cost of producing x units of a particular commodity during a oneday operation is 16x – 1,591, where the production cost is in rupees. The selling price of a commodity is fixed at Rs.9 per unit and the fixed cost is
asked by zaib ali 
math
The total cost C(x) of a firm is C(x) = 0.0005x^3 – 0.7x^2 – 30x + 3,000, where x is the output. The value of x; for which MVC = AVC is: (where VC denotes the variable cost, MVC denotes marginal variable cost and AVC denotes average variable cost
asked by moon 
math
Maximum or minimum values of the function f(x) = (1 – x)^2 e^x is: i need solution (a) Minimum value at x = –1; maximum value x = 1 (b) Minimum value at x = 1; maximum value x = –2 (c) Minimum value at x = 1; maximum value x = –1 (d) None of these
asked by asad 
Trigg
This one is throwing me off, I don't get how to do a identity equaling to .3 Cos2x=.3
asked by katelyn 
math
The cost of producing x units of balloons is given by C(x) =140 + 0.125x + 0.0005x^2. If the revenue function is determined by R(x) = 3x, maximum profit is:
asked by almas 
wordly wise
circle the letter or letters of each correct answer. which of the following can suffer from CONGESTION? A city streets B a theater lobby C a car D the passages in one's nose it can have more than one correct answer
asked by misty 
Math
Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x
asked by Karen 
Algebra 1 Honors
A taxi cab charges $2.50 for the first mile and $0.35 for each quarter mile after that. Johns taxi ride to he airport was 15.75 miles. What was his fare?
asked by Shawn 
Physics
Alex is exploring a cave that has a slight incline and is iced over, forcing her to use ice cleats to explore it. After climbing 50 m into the cave, she finds what she is looking for and she takes out her ice pick and hammer to begin removing the stones.
asked by cocol 
precal
Help please! sin4x=3cos^3xsinx4sin^3xcosx
asked by kaitlyn 
precal
3sin3x+2=4
asked by jennifer 
science help PLS
What is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? As air pressure in an area increases, the density of the gas particles in that area decreases. As air pressure in an area increases,
asked by Oscar 
Behavioral Stat. Help!
Conducting a post hoc test is similar to conducting multiple ttests. As a result, it would seem natural to want to bypass the ANOVA and just use repeated ttests. Explain why this approach is not necessarily a good idea and why an ANOVA followed by a post
asked by slomomo 
Algebra
A square has an area of 49 square units. Find the sode length and perimeter of the square.
asked by Kay 
Algebra 1 Honors
The volume of a cylinder is 157 cubic inches. The base of the cylinder has a diameter of 5 inches. What is the height of the cylinder? Round to the nearest tenth of an inch.
asked by Anonymous 
Algebra
A square has an area of 49 square units. Find the side length and perimeter of the square.
asked by Anonymous 
english
Define verb tense. Write a sentence that has a simple present tense verb. Rewrite it, changing the verb to simple past tense, simple future tense, each of the perfect tenses, and each of the progressive tenses.
asked by jo 
physics
How does the concept of resonance work?
asked by Emma 
ENGLISH
1. Joseph ate dessert before he ate dinner. > Are the capitalized words a phrase or a clause? Answer: Clause. 2. She left early in the morning. > Are the capitalized words a phrase or a clause? Answer: Phase. IS THIS CORRECT?
asked by jo 
english
An imperative sentence is to a command as a declarative sentence is to a/an A. statement. B. wish. C. question. D. exclamation. my answer is D
asked by lucy 
English
What is an example of Aristophanes' satire of society (other than of women)?
asked by Anonymous 
Statiatics
Need help please. Determine whether each experiment is a binomial experiment or can be reduced to a binomial experiment. If so, describe a trial, determine the random variable, and state n, p and q. a) You roll a die 15 times and find the sum of all the
asked by Josh 
just checking(:
For the equation 4y = 8x, what is the constant of variation? a) 4 b) 2 c) 1 d) 2 Is it b) 2?
asked by Linear Functions 
physics
A typical red blood cell has a mass of 3.0 1016 kg. A blood sample placed in a centrifuge is subjected to a force of 4.6 1011 N when the centrifuge is operated at 138 rev/s. What is the diameter of the centrifuge?
asked by Yaacov 
Statistics
One last one. A poll at Steve's high school was taken to see if students are in favor of spending class money to expand the juniorsenior parking lot. Steve surveyed 6 random students from the population. 85% favored the expansion, while 15% opposed it. a)
asked by Josh 
math
Use the rated acute angle to state an equivalent expression sin 350
asked by mila 
Chem
Using the same unbalanced chemical reaction, what is the theorectical yeild of CO2 if 16.0g of methane reacts with excess oxygen: CH4(g)+ O2 (g)→ CO2 (g)+ H2O(g)
asked by Debra 
Science
what are some scientific experiments ideas My teacher told me I could do a scientific experiment following the scientific method.
asked by June 
Algebra
If (c) were f(k)=4/k+7, what value of k would be excluded from the domain?
asked by Tasha 
Geometry
A(3,3) > A' is a glide reflection where the translation is (x,y) (x+5,y), and the line of reflection is y=1. What are the coordinates of A'? (2,3) (3,5) (5,1) (2,5) > is an arrow. I am not good on glide reflections and I'm very stuck on this one:(
asked by SkatingDJ 
Science
The town of Seaside needs to build a new power plant. The old coal burning plant produces too much pollution and is no longer safe. The mayor decides that he will do some research on alternative forms of energy like nuclear power plants and solar power
asked by Mark 
law
Which of the following is NOT an argument in support of plea bargaining?
asked by ki 
Algebra
The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 3.7% per hour. How many hours does it take for the size of the sample to double? Note: This is a continuous
asked by Kanise 
chemistry
How many grams of bismuth (III) chloride can be produced from 575 mL of chlorine gas at STP when reacting with excess bismuth metal?
asked by nicholas 
Algebra
Mr. Wright has a class of 15 students. He can spend $23 on each student to buy math supplies for the year. He first buys all of his students calculators, which costs a total of $69.45. After buying the calculators, how much does he have left to spend on
asked by Caleb 
English
1. This summer, what did Hajun do? He went camping with his friend John¡¯s family. 2. Where did they go? They went to Yosemite National Park. 3. What is Yosemite famous for? It is famous for its natural wonders. 4. On July 20, what did they do? They
asked by rfvv 
Algebra
Year Number of Graduates (in millions) 2009 15.4 2010 15.9 2011 16.3 2012 16 2013 15.7 a. Code the years using t = 1 for 2009 and fit a quadratic function to the data with the regression program on your calculator. equation is
asked by john 
English
1. I am too tired to focus on the teaching. I am too tired to do the laundry. I am too tired to mop the floor. I am too tired to iron my uniform. I am too tired to clean the living room. I am too tired to arrange the things in the living room. 2. I am too
asked by rfvv 
Language Arts HELP NEED !!!!!!!
1)In all together now, Barbara Jordan's main purpose is to a)persuade readers that a tolerant society is best created by working on a small scale. b)inform readers of the civil rights movement in the United States. c)praise the work of the leaders of the
asked by itxhel 
1Physics
One end of a spring is attached to the ceiling. The unstretched length of the spring is 10.0 cm. A 2.0 kg mass is hung from the other end of the spring. It is slowly lowered until it comes to rest. At this point the spring is 15 cm long. (a) What is the
asked by Anonymous 
Math
A box containing 5 red balls and 3 green balls weighs 43 g. When the box contains 3 red balls and 5 red balls it weighs 37g. When it contains one ball of each it weighs 19g. What is the mass of the box and of each ball.
asked by Zeisha Khan 
PreCalculus HELP!
Explain how the transformations of the functions f(x)=15sin(x) and f(x)=sin(x)+15 differ. I see that f(x)=sin(x)+15 experiences a vertical shift, but I am not sure about the transformation that f(x)=15sin(x) experiences. Thank you for your help!
asked by Ellie 
Math
The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why.
asked by Riwa 
math
in a class there are 28 boys and 14 girls.what fraction of the pupils are girls.
asked by Anonymous 
maths
a bag contains three labelled A,R,C and a box contains 4 cards 1,2,3,5. if cards are picked from the bag and from the box, find the probability of picking on A and a prime number
asked by christina 
math
32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me
asked by jyoti 
calc
Find the velocity, v(t), for an object moving along the xaxis if the acceleration, a(t), is a(t) = 2t + sin(t) and v(0) = 4
asked by ANONYMOUS 
English
Is your house close to your work? ============ What is the part of speech of 'close' here? An adjective or an adverb?
asked by rfvv 
Chemistry  Energy Phase Changes
Calculate the quantity of heat gained or lost in the following change: 0.44 mol of water evaporates at 100 degrees Celsius  So what I did was: 1 mol > 6.01 kJ 0.44 mol > x x = 2.64 kJ of energy gained But apparently this is incorrect? Could somebody
asked by Kid 
English
1. The house is close to the river. 2. The house is near the river. 3. the house is by the river. 4. The house is next to the river. ====== Are they all the same and grammatical? Do we have some more similar expressions?
asked by rfvv 
Geometry
Find the length of a segment that has endpoints h(2, 3) and j(12, 7) 20 10 square root 2 4 square root 2 40 Please help? Thx
asked by SkatingDJ 
calc
A pitcher throws a baseball straight into the air with a velocity of 72 feet/sec. If acceleration due to gravity is 32 ft/sec2, how many seconds after it leaves the pitcher's hand will it take the ball to reach its highest point? Assume the position at
asked by ANONYMOUS 
English
1. It was close to 1:15 a.m. 2. It was near 1:15 a.m. 3. It was about 1:15 a.m. 4. It was around 1:15 a.m. 5. It was roughly 1:15 a.m. 6. It was approximately 1:15 a.m. ================= Are they all grammatical and do they have the same meaning?
asked by rfvv 
Heat and Heat Transfer
Two calorimeters each contain 1.4L of water and have a temperature of 26°C In the first calorimeter, you burn a sample of candle wax and determine that 108.2kJ of energy is released. In the second calorimeter, you have to burn 5.4g of candle wax to raise
asked by Kid 
physics
A scuba tank, when fully submerged, displaces 15.7 L of seawater. The tank itself has a mass of 13.9 kg and, when "full," contains 3.20 kg of air. The density of seawater is 1025 kg/m3. Assume that only its weight and the buoyant force act on the tank.
asked by arshi 
math
Bill swam 4 kilometers against the current in the same amount of time it took him to swim 12 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would Bill swim if there were no current?
asked by mik 
calculus
integrate (e^t + e^t)²
asked by ligas 
physics
Engine oil (η = 0.20 Pa⋅s) passes through a fine 2.60mmdiameter tube that is 8.60 cm long. What pressure difference is needed to maintain a flow rate of 7.8 mL/min ? So what i did was (7.8Ee3 /60) = π P (1.3e3) ^4 /(8* 0.086*0.2) I get 1.99E5 but
asked by arshi 
ps 215
Given km insects angle jkl prove angle 2=angle 3
asked by amand 
batangas state university
Find cos theta, given that sin theta=3/5 and theta is in quadrant II
asked by jeanela 
Statistics need help
Need help please on these questions: 1. A poll at Steve's high school was taken to see if students are in favor of spending class money to expand the juniorsenior parking lot. Steve surveyed 6 random students from the population. 85% favored the
asked by Josh