Questions Asked on
April 17, 2015

Language Arts
1. The word aloof is an English word borrowed from Dutch. Its meaning is "at a distance." In which of the following sentences is the word used correctly? Anne's sociable nature mad her aloof in new situations When he first arrived at the Secret Annex,
asked by Hailee 
Math
7. You are having a discussion about sequences with your classmate. She insists that the sequence 2, 3, 5, 8, 12 must be either arithmetic or geometric. Is she correct or incorrect? Explain.
asked by Alex 
geometry
The figure shown is a rectangle. the green shape in the figure is a square. The blue and white figures are rectangles, and the area of the blue rectangle is 24 square inches. a. write an expression for the area of the entire figure that includes an
asked by catsanddogs 
Chemistry
Is PbI2 soluble in water or not? Following the solubility rules for ionic compounds, salts containing Pb are insoluble and iodide salts are soluble, so can it be both?
asked by Ally 
Health
__________ supervision means you keep your children in your view when they are in or near water? A. Active B. Quiet C. Loud D. Adult***
asked by Abby 
math
Simplify 6P2 A.30**** B.15 C.12 D.720 Simplify 8c5 A.6,720 B.336 C.56**** D.10
asked by matt 
Math Help ASAP
A movie complex has eight different movie theaters. The manager of the complex wants to conduct a survey to determine which snacks to add to the menu. Which represents the best sample the manager could use for the survey? Survey the first 100 moviegoers
asked by YOLO 
calc
Suppose that an accelerating car goes from 0 mph to 58.6 mph in five seconds. Its velocity is given in the following table, converted from miles per hour to feet per second, so that all time measurements are in seconds. (Note: 1 mph is 22/15 feet per sec =
asked by Anonymous 
Science
"Earth's energy sources include both renewable and nonrenewable resources. Name at least three sources of energy that could be used in your house. Then describe the ideal source of energy for generating most of your home's electricity, and explain why you
asked by Priscilla 
math
How much money must be invested at 6.3 % simple interest to earn $250 in interest each month?
asked by Gina 
physics
1 The specific heat of a substance at its boiling point or melting point Is 0 Is infinity Is negative lies between 0 and 1 2 A unit mass of solid converted to liquid at its melting point. Heat is required for this process is Specific heat Latent heat of
asked by solomon 
Science
Every individual, including young people, can make decisions to use resources wisely. Use the terms reduce, reuse, and recycle to explain how the students in the image can help minimize solid waste. PLEASE HELP!!!!!!
asked by Priscilla 
English
1. When taking notes from your sources, you should also ________. A. revise your research question B. write the information needed for your works cited list C. format your paper and works cited list D. find a topic for your research paper 2. Academic
asked by Jay 
math
On the grid,draw and label an aquarium shaped like a rectangular prism with a volume of 8,000 cubic in. HINT A CUBE I is a rectangular prism, and 2x2x2=8
asked by precilla 
math
Jody checked the temperature 12 times on Monday, and the last digit of the temperature was odd six times more than it was even. On Tuesday, she checked it 18 times and the last digit was odd eight times more than it was even. Determine which series is
asked by SUE 
Chemistry
Benzene, C6H6, reacts with nitric acid, HNO3. Two products are formed, one of which is water. The second product has a molar mass of 213 grams. The second product is composed of 33.8% carbon, 1.42% hydrogen, 19.7% nitrogen, and 45.1% oxygen. Write a
asked by Melissa 
physics
A charged particle is observed traveling in a circular path of radius R in a uniform magnetic field. If the particle was traveling twice as fast, the radius of the circular path would be 8R. R/4. R/2. 2R. 4R. expanation lso
asked by titu 
Physics
Two plane mirrors are positioned at right angles to one another. A ray of light strikes one mirror at an angle of 30° to the normal. It then reflects toward the second mirror. What is the angle of reflection (from the normal) of the light ray OFF the
asked by Diana 
ss
the aztec capital of tenochtitlan stood on the presentday A.Los Angeles B.Panama City C.Mexico D.Tikal
asked by joshua 
english
Which sentence is the most grammatically correct and clear version? Superman announced that he could leap over buildings in a single bound, which was a very risky thing to do. It was risky for Superman to announce that he could leap over buildings in a
asked by Titan 
statistics
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level.
asked by Jane 
algebra
1. a chemical compound requires 8 ounces of chemical a and 12 ounces of chemical b. a mixture contains 24 ounces of chemical a and 30 ounces of chemical b. how can you fix the mixture to make the chemical compound? 2. in an animal shelter, the ratio of
asked by leya 
type of reaction
what type of reaction is ammonium nitrate? HNO3(aq) + NH3(l) > NH4NO3(aq)
asked by help me 
troduction to computer
you call the help desk to report a problem you are having on your computer. The technician asks you what operating system you are running . you know it is windows 7 but you forget which version. how can you find out
asked by Anonymous 
PRE  CALCULUS
A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Sn: 1 + 4 + 7 + . . . + (3n  2) = n(3n  1)/2
asked by Ciara 
Math
School A has 480 students and 16 classrooms. School b has 192 students and 12 classrooms. A. what is the ratio of students to classrooms at School A? 480:16 B. what is the ratio of students to classrooms at School B? 192:12 C. How many students would have
asked by Jay 
Chemistry
If 0.605 g of magnesium hydroxide reacts with 1.00g of sulfuric acid, what is the mass of magnesium sulfate produced? Mg(OH)2(s)+H2SO4(l)→MgSO4(s)+H2O(l) .605g Mg x 1molMgSO/1molMg=.605g MgSo 1.00g MgSO/1mol H2SO4=1.00g MgSO .605g+1.00g=1.605g This is
asked by Jessica 
physics
A hawk flies in a horizontal arc of radius 12.0 m at a constant speed of 7.1 m/s. It continues to fly along the same horizontal arc but increases its speed at the rate of 7.9 m/s2. Find the acceleration magnitude under these conditions.
asked by alaa 
Social studies
how was south carolina constitution of 1868 different from earlier versions? A. Representation was based on wealth and population B. Property owners alone could vote C. All men were given the right to vote D. Women were given the right to vote Is it A:)
asked by Anonymous 
chemistry
What would be the molarity of solution obtained by mixing equal volumes of 30% by mass H2SO4 (d=1.218 g/mL) and 70% by mass H2SO4 (d=1.610 g/mL). If the resulting solution has density 1.425 g/mL, calculate its molarity
asked by jaimi 
math
John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ?
asked by Auriyan 
Math
The sum of two numbers is 70.4. One of the numbers is 9 times the other. What are the 2 numbers?
asked by Austin 
PRE  CALCULUS
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists. Show your work. 4xy+3z = 12 x+4y+6z =32 5x+3y+9z = 20 ...... I NEED HELP WITH THE OTHER TWO PLEASE :) 4 1 3  12 1 4 6  32 5 3 9  20 1 0 0 0
asked by Ciara 
physics
If a calculated quantity has units of T • m/A, that quantity could be Answer choices a magnetic torque. 1.0. 2.an electric field. 3.an electric potential. 4.a magnetic field.
asked by titu 
geometry
What is scale factor for the dilation of segment AB into segment CD? Draw the dilation of segment AB with scale factor 2/3 and label it segment EF. The figure is 2  segments with point A(3, 3) with B(6,3). Other segment is C(4,4) with D(8,4). Cant seem
asked by Jeremy 
Algebra
a car driver accelerates to a speed of 35 miles per hour and then takes her foot off the gas pedal even though she does not press the brake pedal at any time she eventually rolls to a stop which of the following most likely causes the car to come to a stop
asked by Peter 
Algebra
An object is thrown downward with an initial velocity of 4 feet per second. The relationship between the distance s it travels and time t is given by s = 4t + 16t2. How long does it take the object to fall 72 feet?
asked by Merty 
math
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level.
asked by HELP 
math
a cubic container was completely filled with water. when 3/4 of the water from the container was poured into a rectangular tank, the tank became 1/4 full. the capacity of the tank is 1.024 liters more than that of the cubic container. Find the length of
asked by stacy 
Civics
Which best describes how the money that individuals have in savings accounts affects the economy? A. The money in savings accounts is used for daily expenses like food and gas which keep the economy going. B. The money in savings accounts just sits in the
asked by Student 
PRE  CALCULUS
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2+5+8+...+(3n1)=n(1+3n)/2
asked by Ciara 
Science
why is it important biodiversity? A. preservation of biodiversity prevents the extinction of species B. preservation of biodiversity increases the amount of fossil fuels formed in a shorter period of time. c. preservation of biodiversity disturbs the
asked by Priscilla 
Civics
Which best describes how the money that individuals have in savings accounts affects the economy? 1. The money in savings accounts is used for daily expenses like food and gas which keep the economy going. 2. The money in savings accounts just sits in the
asked by Student 
Physics
A tiny source emits sound uniformly in all directions. The intensity level ar a dist. Of 2m is 100dB. How much sound power is the soure emitting?
asked by Dean 
English
1. A research paper has which of the following aspects in common with an essay? A. a title page B. a works cited list C. body paragraphs with topic sentences D. personal experience as a primary source 2. When citing all sources, which answer lists the
asked by Jay 
Science
Multiple Choice 1. Which of the following is a chemical change? (1 point) boiling of water melting a cube of ice dissolving 10 grams of salt in water splitting water into hydrogen and oxygen * 2. What is the mass of water that results from combining 2.0 g
asked by Pauly 
physics
A 3.6 kg mass attached to the end of a string swings in a vertical circle (radius = 17.9 m). When the string is horizontal, the speed of the mass is 3.8 m/s. What is the magnitude of the force of the string on the mass at this position?
asked by alaa 
physics
Two 75.0 kg hockey players skating at 5.60 m/s collide and stick together. If the angle between their initial directions was 115°, what is their velocity after the collision? (Let the motion of player 1 be in the positive xdirection and the motion of
asked by alexa 
Physics
A person whose eyes are 1.50 m above the floor stands in front of a plane mirror. The top of his head is .10 m above his eyes. How far above the floor should the bottom edge of the shortest possible mirror be placed? I know that I need to take half of a
asked by Diana 
Calculus
A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 31 feet? A = x(31/21/4 (2+pi)
asked by Ryan kustin 
math
Flipo is building a rectangular sandbox for his younger brother.The length of the sandbox is 1 foot longer than twice the width of the sandbox. The perimeter of the sandbox is 29 feet
asked by asia 
physics
Through beta decay, 55Cr (Chromium‑55 –with mass 54.94080 u) emits an electron (0.00055 u) leaving a daughter nucleus of 55Mn (manganese‑55 with mass 54.93800 u). a) How many different particles to we get out of this reaction b) How much energy in
asked by Emily 
Algebra (check my work?)
1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of
asked by Ivy 
chemistry
What is the normality and nature of a mixture obtained by mixing 0.62 g of Na2CO3 •H2O to 100mL of 0.1N H2SO4?
asked by jaimi 
chemistry
A piece of Al weighing 2.7g is titrated with 75 mL of H2SO4 (sp.gr. 1.18 g/mL and 24.7% H2SO4 by mass). After the metal is completely dissolved the solution is dilute to 400mL. Calculate molarity of free H2SO4 in solution.
asked by jaimi 
chemistry
Sulfur dioxide and oxygen gases react at high temperature (400 o C) in the presence of a catalyst(like Pt) to form sulfur trioxide gas. The reaction is started from a gas mixture at 400oC with the partial pressures PSO2 = 15 atm and PO2= 10. atm. What will
asked by David 
Algebra
Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a commaseparated list.) (x+2)^2 + (x7)(x2)=16
asked by Merty 
Help with Psychology
To help Karen overcome her fear of thunderstorms, a behavior therapist asks her to relax and imagine watching light rain with distant thunder. The therapist is using... a) clientcentered therapy b) cognitive therapy c) systematic desensitization d)
asked by Henry 
Physics
Water flows through a 4 cm diameter garden hose at a velocity of 2 m/s. What is the velocity of the water if a nozzle is used with a diameter of 0.5 cm?
asked by Jason A. 
chemistry
If 0.605 g of magnesium hydroxide reacts with 0.900g of sulfuric acid, what is the mass of magnesium sulfate produced? Mg(OH)2(s)+H2SO4(l)→MgSO4(s)+H2O(l)
asked by Anonymous 
Programming logic and design
Using python write a program that does the following: •Create the logic for a program that calculates and displays the amount of money you would have if you invested $3000 at 2.65 percent interest for one year. •Create a separate method to do the
asked by Christina 
College Accounting
The Thompson Company uses activitybased costing to determine product cost. Three activities and their rates have been calculated as shown below. Setting up equipment = $500 per setup Moving goods = $20 per move Machining = $4 per machine hour Thompson
asked by K 
Accounting/Finance
Temte Corporation is authorized to issue 1,000,000 shares of nopar common stock and 250,000 shares of 6 percent, $25 par value, cumulative preferred stock. These events affected stockholders’ equity during the first year of operations: 1. 125,000 shares
asked by Lauren 
precalc
Use mathematical induction to prove that the statement is true for every positive integer n. Show your work. 2 is a factor of n2 n+2
asked by Ciara 
Algebra
Solve each equation using the quadratic formula. (Enter your answers as a commaseparated list.) x^22x+2=0
asked by Merty 
4th Grade
Timmy's birthday is 53 days away. Which of these is greater than 53 days? A. 3 weeks B. 2,400 hours C. 1 month D. 240 hours
asked by BUB 
math
Suppose you want to build an outdoor rectangular pen enclosed by fencing for a pet. You want the pen to have an area of 64 square feet. Write and post one set of dimensions that could be used for the pen, along with the perimeter of the pen.
asked by maria 
physics
a tennis ball is hit vertically upwards with a velocity of 20m/s. what is it's Decelaration as it moves upward? calculate the maximum height reached by the ball.
asked by Juliet king 
Health
what should you refrain from doing while helping a friend or family member who is being abused? A) Confront the abuser on behalf of your friend or family member. B) Encourage your friend or family member to seek help or guidance from others. C) Tell your
asked by Ellie_Fan 
physics
A man walks 5.0m due east and then 10.0m N30oE . Find his resultant displacement
asked by dave 
chemistry
Hydrogen gas (7.0 mL) is mixed with chlorine gas(4.0 mL) at a certain pressure and temperature. A reaction between H2and Cl2 is initiated by UV light. If pressure and temperature are kept constant, which gases and in which volumes will be found after the
asked by David 
statistics
Jody checked the temperature 12 times on Monday, and the last digit of the temperature was odd six times more than it was even. On Tuesday, she checked it 18 times and the last digit was odd eight times more than it was even. Determine which series is
asked by HELP 
physics
A 1.7 kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 26.0 m/s. What is the magnitude of the tension in the string at this position?
asked by alaa 
Math
A toy manufacturer produces action figures and packages them into small boxes. The distribution center then puts them in larger boxes to ship them to stores. 1.) Decide which box can ship the most action figures. 2.) How many action figures fit in the box?
asked by Abby 
physics
Procedure 1: Forming Real Images with a Converging Lens a) Obtain the focal length f of the small converging lens by focusing the image of a distant light bulb on the cardboard screen. Mount the lens and the screen on the meter stick. Position the screen
asked by titu 
math trigonometry
A ladder 8.5m long is placed with its foot at a distance of 4m from the wall of a house and just reaches a window will . find the height of a window will and the sine and tan of the angle which the ladder makes with the wall
asked by priya 
physics
Calculate the magnitude and direction of the electric force if a charge of −3.5 × 10−7 C is placed in a field of 12 N/C [right].?
asked by zeeabadin 
maths
four ribbons measuring 4m,18m,22m and 26m respectively are to be cut into piece of equal length. 1)find the least no. of piece tat can be obtained? 2)what is the length of each piece?
asked by megha 
Math
Kick is family drank a total of 42.5 gallons of milk in Jan and Feb. her family drank 5.3 gallons more milk in Feb than Jan. How many gallons of milk did kilos family drink in February?
asked by Austin 
PRE  CALCULUS
A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336 calories in her workout. Write an inequality that describes the situation. Let x
asked by Ciara 
Science
which of the following would have the greatest force? •an object with low mass accelerating slowly •an object with low mass accelerating quickly •an object with high mass accelerating quickly •an object with high mass accelerating slowly (and yes i
asked by Anon 
Algebra
Use the properties of exponents to simplify the following as much as possible. Assume the bases are positive. (8a^3b^6)^(1/3) / (16a^8b^−4)^(1/4)
asked by Merty 
Chemistry
Okay so in our class we did an ice cream lab where we use Ziploc bags to make ice cream. We made an ice cream mixture and then put it into a smaller Ziploc bag. Then we got a large Ziploc bag and placed ice in it and placed the bag with the ice cream
asked by Jessica 
math
Sally has a balance of $2845 on her credit card. What rate of simple interest is she being charged if she must pay $26.19 interest for the 12 days her payment is late?
asked by Gina 
Physics
Suppose 2100 J of heat are added to 3.3 mol of argon gas at a constant pressure of 120 kPa. (Assume that the argon can be treated as an ideal monatomic gas.) A) Find the change in internal energy. B) Find the change in temperature for this gas. C)Calculate
asked by sarah 
Algebra
Solve the following quadratic equation by completing the square. (Enter your answers as a commaseparated list.) a^212a+52=0
asked by Merty 
math
A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were
asked by BOB 
Stream Physics Hydrology  HELP!!!!
1a) An aqueous solution containing 35 kg of endosuflan insecticide is accidentally released into a small stream. The stream dimensions are 17.5 meters wide and 1.15 meters deep. The stream velocity is 1.1 m/s. The stream channel drops 24m over a distance
asked by Kelly 
programming
Using python write a program that does the following: •Create the logic for a program whose main() method prompts a user for 1000 numbers and stores them in a list. •Pass the array to a method that reverses the order of the numbers. •In the main
asked by Christina 
s.s
the legislative branch of the federal government made up of the (Congress/Supreme court)
asked by ashley 
math
Kerry states laps around the playground. The playground is 150 meters and 50 meters wide. How many laps will it take Kerry to state 1 km?
asked by Anonymous 
physics
A honeybee with a mass of 0.175 g lands on one end of a popsicle stick (Active Example 92). After sitting at rest for a moment, the bee runs toward the other end with a velocity 1.75 cm/s relative to the still water. What is the speed of the 5.00 g stick
asked by alexa 
Math
Jon is participating in a 6 mile run/walk for charity. If she completes the course & runs at least 1/2 the distance then write an equality for walking
asked by Ali 
physics
To balance a 29.8 kg automobile tire and wheel, a mechanic must place a 58.2 g lead weight 25.0 cm from the center of the wheel. When the wheel is balanced, its center of mass is exactly at the center of the wheel. How far from the center of the wheel was
asked by alexa 
Math
So I am supposed to solve this without using a calculator: Sqrt[20]/10  Sqrt[10]/Sqrt[32]  Sqrt[0.3125] + Sqrt[3 + 1/5] You can put this into WolframAlpha as is to make it prettier. Answer given is 1/2 * SQRT(5) I really don't know where to start here. I
asked by Mr.AMG 
precalc  JAI
Solve the system of equations using matrices. Use Gaussian elimination with back substitution. x+y+z = 5 xy+3z = 1 4x+y+z = 2
asked by Ciara 
Math 222
need help understanding exponents using the product rule/ Simplifying Radicals. (a^1/2 b)^1/2 x (ab^1/2)
asked by Maxine 
algebra
the weight (in kg) of each student in a group of students is 9 times his height (in feet) write a linear equation with x representing the height (in feet) and y representing the weight i kg of the student
asked by shan 
Maths
Virti had 600 rupees. She spent 2/3 on buying a tshirt and 1/5 of remaning money on buying hair clips. With how much money is she left with
asked by Piyush 
Analytic and Solid Geometry
Find the point on the yaxis that is equidistant from (5 ,1) and (3 1). The answer is (0,4) but I don't know the process.
asked by MIKA 
Vectors
What is the distance between the parallel lines having equations 2x+2y=16 and x+y=0? I'm getting 2 as my answer but the answer is supposed to be 4√2
asked by Sara 
math
Kerry states laps around the playground. The playground is 150 m long and 50 m wide. How many laps will it take Kerry to skate 1 km?
asked by Anonymous 
Algebra
Solve each equation using the quadratic formula. (Enter your answers as a commaseparated list.) x^2 2x +10=0
asked by Merty 
physics
Answer the following question:Be sure to show all work. Include formulae and units.Be sure to include relavant, meaningful diagram and a complete circuit diagram with circuit related problem. take enough space, don't try to squeeze everything on a small
asked by titu 
physics
A 30caliber rifle with a mass of 2.94 kg fires a 9.73 g bullet with a speed of 666 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet? (Note there is a tolerance 0.1 percent for the
asked by titu 
Algebra
Find an equation that has the given solutions. (Assume the equation has a degree of 3.) x = −5, x = 5, x = 2/3
asked by Merty 
Socials
I have to write a 100 word story(yes, insane) including all the key terms affiliated with the merging of Hudson's Bay Company and Northwest Company. I am thinking of writing it from the perspective of a Metis... what would I feel about this merge?
asked by Brielle 
Physics
Proove a*sin(x)+b*sin(x+phi)=((a+b)^2*cos(phi)^1/2*sin(x+phi/2)
asked by Anonymous 
math
When 15 is subtracted from a number,the anwser is the same as when the number is divided by 6.
asked by harry 
Math
The angle of depression from the top of a building to a point 30 meters from its base is 24 degree. 1. Represent the above information in a diagram. 2.Calculate the height of the building.
asked by Samantha Scott 
Math
A ranger at forest station A( located at latitude N47 and longitude W116 30') sights smoke from a fire in the direction of S35 36'W. At the same time a ranger at forest station B(located at latitude N48 and longitude W117 45') sights the same fire in the
asked by Guillermo 
physics
An elastic collision occurs between two air hockey pucks in which one puck is at rest and the other is moving with a speed of 0.7 m/s. After the collision, the puck initially in motion makes an angle of 20.00 o with its original direction, and the struck
asked by titu 
physics
An elastic collision occurs between two air hockey pucks in which one puck is at rest and the other is moving with a speed of 0.7 m/s. After the collision, the puck initially in motion makes an angle of 20.00 o with its original direction, and the struck
asked by titu 
Science
Neglecting air resistance, what is the speed of the object when it hits the ground?
asked by Kenzie 
chemistry
i'm stumped on how to write this in mathematical form. it says the rate increased by a factor of 2000, I am supposed to determine by what percent the Energy of activation will be reduced. The answer is 25% in the book. I don't know how they get the answer
asked by jojo 
Chemistry
What is the energy in joules and wavelength in meters of microwave radiation with = 2.4 ×1011s1?
asked by nona 
Math 222
I need help understanding exponents (a^1/2 b)^1/2 x (ab^1/2)
asked by Maxine 
Math
35 decimeter string is attached to both ends of a 25 decimeter pole. At what point of the string do you need to pull to make a right triangle?
asked by Mr.AMG 
s.s
what were the two main goals of the constitution's creators? a.create local goverments and elect a president b.establish the 51st state and define borders c. raise taxes to build the treasury and pay off war debts d. protect citizens' rights and defend the
asked by ashley 
Chemistry
What is the energy and frequency of a photon with a wavelength of 2.57 ×102 m?
asked by nona 
mathematics
Given triangle DEF with vertices D(3;6) ,E(2;3) and F(x;1) with DE=DF, determine the value of x
asked by Anonymous 
physics
The Universe expands according to the Hubble's law: velocity is proportional to distance. There must be some distance, therefore, at which the velocity reaches the speed of light. This defines the horizon. The Doppler shift is so huge that the length of
asked by titu 
precalc  JAI
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 2+5+8+...+(3n1)=n(1+3n)/2
asked by Ciara 
Algebra
Find an equation that has the given solutions. (Assume the equation has a degree of 2.) a=1/3, a=3/7
asked by Merty 
Math
Hi! Can someone help me with this? Thanks a bunch! Find the 10th partial sum of the following arithmetic sequence. 0.50, 0.9, 1.3, 1.7.....
asked by Kayla 
biochemistry
How would you prepare 50ml of 0.2M HCL
asked by noni 
Math
An artist drew a painting with similar rectangles with whole number dimensions in inches. the small rectangle is 8 inches by 3 inches. One dimension of the medium rectangle is 9 inches. One dimension of the large rectangle is 32 inches. A. find the
asked by Jay 
business finance
a coy invests 250000 which is expected 2 generate d following cash flow 80000,60000;45000;20000;10000: for 5yrs.wot is d payback period ?
asked by blessing 
law
do you think traffic stops based solely on racial profiling are constitutionally valid?
asked by Anonymous 
fire
Two line of same flow with different lengths, no elevation find: a. Total friction loss for line A b. Total friction loss for line B c. PDP (pump discharge pressure) for line A d. PDP for line B Layout: Line A=150' of 3" 300gpm combination nozzle Line B=
asked by lost 
English 4
What was Olaudah Equiano motivation ?
asked by Ciara 
math
solve xd^2y/dx^2+y=0 by frobenius method
asked by assma 
Drug interactions
which drug lessened the effect of warfarin(coumadin)?
asked by Roberta 
Math
If a = b + 2l then (b  a)^4 = ? F. 16 G. 8 H. 1 J. 8 K. 16
asked by Anonymous 
Vectors
why does this equation 3xy +y = 0 represent two planes?
asked by Sara