Questions Asked on
November 7, 2012

math
Lynbrook West, an apartment complex, has 100 twobedroom units. The monthly profit (in dollars) realized from renting out x apartments is given by the following function. p(x)=10x^2+1700x43,000 To maximize the monthly rental profit, how many units should
asked by Britney 
math
Using the numbers 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. Explain why the result of your
asked by someone unknown 
Physics
A uniform 34.5kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end as in the figure below. The right end of the beam is supported by a vertical column. a) Find the tension in the rope. b) Find the force the
asked by Alex Baker 
english
1. What about Thoreau’s night in jail made him angry? (1 point) The fact that his stay in prison was too short to make a point. The interference with his protest. The uncomfortable accommodations. 2. Why do the playwrights refer to their protagonist as
asked by jamie 
trig
How do you find the exact value of sin 5pi/8?
asked by Sierra 
physics
Three applied forces, F1= 20.0 N, F2= 40.0 N, and F3 = 10.0 N act on an object with a mass of 2.00 kg which can move along an inclined plane as shown in the figure. The questions refer to the instant when the object has moved 0.600 m along the surface of
asked by naf 
physics
A positive charge q1 = 2.70 uC on a frictionless horizontal surface is attached to a spring of force constant k as in the figure. When a charge of q2 = –8.60 uC is placed 9.50 cm away from the positive charge, the spring stretches by 5.00 mm, reducing
asked by Brette 
Physics, Someone please help me!
A person bending forward to lift a load with his back, as shown in the figure, rather than with his knees can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal
asked by Tia 
english
Identify the italicized word according to its class in structural linguistics. (There) are no easy answers.
asked by bob 
Physics
to strengthen his arm and chest muscles, an 82kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0cm from the top of his head. find the force that the floor exerts
asked by Sam 
English
My name, Cynthia, is from a Greek word for moon. Identify the term the correctly identifies each sentence... simple sentence compound sentence complex sentence compoundcomplex sentence I think it is B.
asked by Deborah 
Algebra =/
One Number Added To Three Times Another Number Is 24. Five Times The First Number Added To Three Times The Other Number Is 36. FInd The Numbers HELP PLEASE!!!!! :)
asked by Callie 
Calculus
A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. The total volume of the solid is 2 cubic centimeters. Find the radius of the cylinder that produces the minimum surface area. (Round your answer to three decimal
asked by Ashley 
math
alan scored a total of 14 points for answering all 15 questions on a math quiz for every correctly answered question alan got 2 points for every wrong ahe lost 2 points how many questions did he answer correclty
asked by Anonymous 
Physics
Two banked curves have the same radius. Curve A is banked at an angle of 11°, and curve B is banked at an angle of 16°. A car can travel around curve A without relying on friction at a speed of 18.5 m/s. At what speed can this car travel around curve B
asked by Don 
Physics Help
Two compressible solids are formed into spheres of the same size. The bulk modulus of sphere two is twice as large as the bulk modulus of sphere one. You now increase the pressure on both spheres by the same amount. As a result of the increased pressure,
asked by Alex 
algebra
The 4200 km trip from New York to San Francisco take 6 h flying against the wind but only 5 h returning. Find the speed of the plane in still air and the speed of the wind.
asked by Samantha 
English 3
Young Goodman Brown is a dynamic character TRUE OR FALSE
asked by Danny 
English  Ms. Sue
I guess that Ashley wasn’t popular in our town. independent clause adverbial clause adjectival clause noun clause Ms. Sue the website you gave me didn't talk about these clauses can you give me a clue how to figure them out  I have 5 questions with
asked by Deborah 
English
The most popular girl’s name when I was born was Ashley. identify what "when I was born" is considered.... independent clause adverbial clause adjectival clause noun clause I think it is A
asked by Deborah 
Intro to Physics
A sample of an unknown material appears to weigh 295 N in air and 165 N when immersed in alcohol of specific gravity 0.700. (a) What is the volume of the material? ___________m^3 (b) What is the density of the material? ____________ kg/m3 I am getting the
asked by Amy 
English
I was not surprised when I learned that. Identify the sentence... simple sentence compound sentence complex sentence compoundcomplex sentence I do not understand these Ms. Sue....I went to your link  please help I have alot Ithink it is A
asked by Deborah 
Math
I need help and I forgot my book and class please help me solve theses Sr = SQUARE ROOT 1. What is the solution to 75 sr to the nearest integer? (1 point) 9 8 8 9 2. Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks,
asked by Kaylee 
physics
While polishing a 1kg brass statue, you do 760 J of work against sliding friction. Assuming that all of the resulting heat flows into the statue, how much does its temperature rise?
asked by Anonymous 
chemistry
A chemical reaction in a bomb calorimeter evolves 3.86 kJ of energy in the form of heat. If the temperature of the bomb calorimeter increases by 4.17 K, what is the heat capacity of the calorimeter?
asked by nikkkki 
Math
Writing to Explain Draw a decimal model and write 0.78 as a fraction in simplest form.
asked by Ryan 
Chemistry
I am stuggling with my chemistry experiment. I am given thr following: The reaction of citric acid and sodium bicarbonate is written as H3C6H5O7(aq) + 3NaHCO3(aq) > Na3C6H5O7(aq) + 3H2O(l) + 3CO2(g) 1.) Mass of cup A, water, and stirrer = 54.3 g 2.) Mass
asked by Bailey 
English
After all, I have always been a night owl, and I prefer moonlight to sunlight. Identify the sentence... simple sentence compound sentence complex sentence compoundcomplex sentence I think it is C
asked by Deborah 
Dollarway
What kind of reaction occurs when a molecule of glucose reacts with oxygen to give carbon dioxide and water?
asked by Danesha 
English
What belief does Whitman share with Ralph Waldo Emerson and other transcendentalists? Which of the following most clearly describes a central theme in the Walt Whitman poem, “I Hear America Singing?” Every man and woman contributes positively and
asked by Lucy 
Chemistry
What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre)
asked by Helen 
statistics
Under what circumstances can a very small treatment effect still be significant? a, if the sample size (n) is very large b, if the sample standard deviation is very large c, if the standard error of M is very large d, all of the other factors are likely to
asked by Robbie 
math
identify the two numbers less than 20 with the most factors
asked by corey 
Physics
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (è = 60.0°) Suppose the total mass of a chair and its occupant is 222 kg.
asked by Anonymous 
math
The price of an oven changes from $450 to $396. (1 point)13.6% increase 13.6% decrease 12% increase 12% decrease
asked by dani 
physics
If an object is dropped from a tall building and hits the ground 3.0 s later, how tall is the building?
asked by kathryn 
Physics
A block of wood will sink 10 cm in freshwater. How far will it sink in seawater. The specific gravity of seawater is 1.025
asked by Maryann 
Math
Suppose that ln2=r. Use properties of logarithms to write the logarithm in terms of r. ln32=__
asked by Jamie 
Physics
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (è = 60.0°) Suppose the total mass of a chair and its occupant is 222 kg
asked by Don 
physics URGENT! HELP
If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do
asked by Alexis 
Intro to Physics
The gravitational force exerted on a solid object is 5.15 N as measured when the object is suspended from a spring scale. When the suspended object is submerged in water, the scale reads 4.00 N. Find the density of the object.
asked by Amy 
Math
I just finished a algebra with pizzazz (why are handcuffs souvenirs?) and I have, they are for two whisrs and i don't know if that's right so an u help me?
asked by Madie 
Physics
Which one of the following stresses would be most likely to cause a bone to fracture? A) tensile stress B) compressive stress C) sheer stress D) bulk stress
asked by Dan 
algebra
Camille can swim against the current at 1.5 m/s and with the current at 3.5m/s. Write an equation that expresses each fact. How fast can she swim in still water?
asked by Samantha 
Statistics
A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls each evening. The sample standard deviation was s= 0.9. Find a 99% confidence interval for the population mean number of
asked by Sara 
physics
You throw a softball (of mass 300 g) straight up into the air. It reaches a maximum altitude of 10.1 m and then returns to you. What is the gravitational potential energy of the softball at its highest position? Assume the ball departed from and returned
asked by ryan 
Physical Education
Tom served to Sue, who set up Stacey for a spike. Stacey went up for the spike and hit it into the ground on Team A's side. In the process of spiking the ball, Stacey hit the net with her hand. Who won the point and why?
asked by Samantha 
physics
Each of the space shuttle's main engines is fed liquid hydrogen by a highpressure pump. Turbine blades inside the pump rotate at 595 rev/s. A point on one of the blades traces out a circle with a radius of 0.02 m as the blade rotates. (a) What is the
asked by Don 
physics
A baseball player puts a baseball on a batting tee. The baseball bat is able to deliver 400,000 W of power and is in contact with the ball for 0.70 ms and a distance of 1.4 cm. the mass of the ball is 145g. What is the average acceleration?
asked by S 
Physics
A 10.0 g object moving to the right at 19.0 cm/s makes an elastic headon collision with a 15.0 g object moving in the opposite direction at 30.0 cm/s. Find the velocity of each object after the collision.
asked by Corey 
Physics
A collapsible plastic bag contains a glucose solution. If the average gauge pressure in the vein is 1.21 103 Pa, what must be the minimum height h of the bag in order to infuse glucose into the vein? Assume the specific gravity of the solution is 1.03.
asked by Amelia 
algebra
The price of a small cabin is $85000 the bank requires a 5% down payment the buyer is offered two mortgage options: 20 year fixed at 9.5% or 30 year fixed at 9.5% calculate the amount of interest paid for each option how much does the buyer save in
asked by tracy 
VERY URGENT math question
Owen was stacking popcorn balls on a table. He put sixteen balls on the table. He added three more layers. Each layer had four fewer balls than the previous layer. How many popcorn balls in all did Owen put on the table?
asked by JJ 
Algebra
Tickets to a movie cost 7.25 for adults and 5.50 for students. A group of friends purchased 8 tickets for $52.75 Write a system of equations to represent the situation
asked by Brielle 
Math
Central Middle School sold 50 tickets for one night of the school play. Student tickets sold for $2 each and adult tickets sold for $3 each. They took in $135. How many of each type of ticket did they sell?
asked by J 
Grammar and capitalization
Select the sentence with the correct capitalization. A) The nurse removed the Foley catheter that Dr. Smith had inserted the prior Friday. B) The nurse removed the Foley Catheter that Dr. Smith had inserted the prior Friday. C) The Nurse removed the Foley
asked by Marie 
physics
Three point charges, A=2.00 uC, B=7.00 uC, C=4.00 uC, are located at the corners of an equilateral triangle. a) Find the magnitude and direction of the electric field position of the 2.00 uC charge. b) How would the eletric field be affected if the charge
asked by Ella 
Physics
Suppose a distant world with surface gravity of 7.12 m/s2 has an atmospheric pressure of 7.48 104 Pa at the surface. (a) What force is exerted by the atmosphere on a diskshaped region 2.00 m in radius at the surface of a methane ocean?________N (b) What
asked by Amelia 
math
a band held a concert in it's hometown a total of 15000 people attended the tickets cost 8.50 per student and 12.50 per adult the concert took in a total of $162500 how many adult came to the concert
asked by ty 
Physics (Tension)
A uniform plank of length 2.00 m and mass 35.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 690N person is d = 0.725 m from the left end.
asked by Alex Baker 
Science 9 PLEESE HELP
i need help on these questions so pleese help me! 1. a.) name the structures of the male reproductive system that sperm do not travel through. b.) what is the name given to these structures? 2. Name the other body system that the !@#$%^& is part of 3. why
asked by Sarahh 
chemistry
A constant pressure tank is filled with air at 16.7 Atm at 24C it warms to 65C, what is the tank pressure
asked by Arde 
Physics
If the 50.0 kg boy were in a spacecraft 5R from the center of the earth, what would his weight be? (Use the 50.0 kg boy for significant figures) i got 20N again not sure.. it dosnt tell me if i got them wrong or right online classes are horrible and very
asked by kathryn 
Physical Science Help, PLEASE!
A marine weather station reports that waves along the shore at 10 seconds apart. The frequency of the waves is?
asked by Bailey 
physics
the coefficients of static and kinetic friction for stone on wood are, respectively, 0.5 and 0.4. if a 150 kg stone statue is pushed with just enough force to start moving across a wooden floor and the same force continues to act afterward. find the
asked by tom 
statistics
An automatic machine that fills bags of unpopped popcorn is operating properly if the weights are independently and normally distributed with a mean of 114 grams and a standard deviation of 4.9 grams. Find the probability that if 7 bags are randomly
asked by V 
chemistry
A buffer system is created by neutralizing the supernatant solution containing Pb^2+, Fe^3+, Al^3+, Ca^2+, Cu^2+, and K^+ ions with 6M NH3 solution and then adding an equal volume of 6M NH3 solution. Explain what forms of 6M NH3 were present in the final
asked by Anonymous 
Intro to Physics
(a) Calculate the absolute pressure at the bottom of a freshwater lake at a depth of 25.6 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is at a pressure of 101.3 kPa. (b) What force is exerted by the water on the window of an
asked by Amy 
Geometry
When a point is on a segment and it is equidistant from endpoints of the segment, what is it?
asked by Leslie 
English
This Question is in accordance to the book "The Scarlet Letter" Is Arthur Dimmesdale a remarkably strong character to have carried his burden of guilt for so many years? Or was he weak for not having the courage to confess? Given what we know about him,
asked by Jonas 
physics
While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.31 piece of fishing line. The weight makes a complete circle every 0.70 . What is the angle that the fishing line makes with the vertical? Express your
asked by Kelly 
physics
calculate the period of a ball tied to a string of length 1.9 m making 1.5 revolutions every second
asked by shaniqua 
Biology
Bacteroides and Escherichia are both gramnegative rods found in the large intestine. Why are they in different phyla?
asked by Aubrey 
Physics
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the astronauts to weigh onehalf of their earthweight?
asked by Don 
statistics
90% confidence; the sample size is 1150 of which 40% are successes.
asked by Eva 
physiology
Match each term with the appropriate description. A. peptide hormone B. steroid hormone C. amino acidderived hormone D. anterior pituitary E. hypothalamus F. posterior pituitary lipophobic molecule that interacts with receptors on cell surface
asked by lilianna 
7th grade art help Ms. Sue please!
1. This is the process of gathering facts and information from works of art in order to make intelligent judgments about them. There are four steps to this process. (1 point) aesthetics art criticism principles of art elements of art 2. The study of the
asked by Delilah 
Physics
A 21.1 g ball of clay is thrown horizontally at + 38.7 m/s toward a 1.2 kg block sitting at rest on a frictionless surface. The clay hits and sticks to the block. A. What is the speed of the block and clay right after the collision? m/s B. Use the block's
asked by Courtney 
physics
If an object is dropped from a tall building and hits the ground 3.0 s later, what is the velocity of the object when it hits the ground? (Remember that the velocity is downward) i got 29m/s is this correct?
asked by kathryn 
Chemistry
if 3.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 J/ degrees Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 C?
asked by Gabby 
Chemistry
if 3.00 g of iron metal are reacted in a calorimeter with a heat capacity of 500 J/ degrees Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 C?
asked by Gabby 
physics
A 2130kg space station orbits Earth at an altitude of 455 km. Find the magnitude of the force with which the space station attracts Earth. The mass and mean radius of Earth are 5.98 × 1024 kg and 6370 km, respectively
asked by mike 
statistics
An automatic machine that fills bags of unpopped popcorn is operating properly if the weights are independently and normally distributed with a mean of 114 grams and a standard deviation of 4.9 grams. Find the probability that if 7 bags are randomly
asked by V 
pre cal
At a distance of 100 feet, the angle of elevation from the horizontal ground to the top of a building is 42 degrees. Find the height of the building
asked by krystal 
Math
What value of b makes the equation below true? b+1/4=12/12 Please show work Thanks
asked by Jennifer 
Physics
A 6.00 Kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.360. Determine the kinetic frictional force that acts on the box when the elevator (a) is stationary (b)
asked by Kathryn 
PHYSICS (CHECK WORK)
Can somebody please check my work. I got part a right, but my answer for part b is wrong. (a) Calculate the absolute pressure at the bottom of a freshwater lake at a depth of 25.6 m. Assume the density of the water is 1.00 103 kg/m3 and the air above is
asked by Amy 
Math
PQRS is a cyclic quadrilateral and angle(pqr)80 degree,what is the value of angle (rsp)?
asked by Rinku 
calculus
a particle is moving counterclockwise around the circular path whose equation is x^2+y^2=100 of the abscissa of the particle is increasing by 72in/sec at a point where x=8 find the rate of changeof the cordinate(y) at this point
asked by Amanda 
physics
A green 4 kg toy car with a speed of 5 m/s collides headon with a stationary yellow 1kg car. After the collision, the cars are locked together with a speed of 4 m/s. How much kinetic energy is lost in the collision? a. what is the kinetic energy of the
asked by paulie 
Science
Many portable gas heaters and grills use propane, C3H8(g), as a fuel. Using standard enthalpies of formation, calculate the quantity of heat produced when 11.90 g of propane is completely combusted in air under standard conditions. I got 600 kj but its
asked by Samantha 
Physics
Suppose the surface (radius = r) of the space station in the figure is rotating at 38.6 m/s. What must be the value of r for the astronauts to weigh onehalf of their earthweight?
asked by Anonymous 
physics
A large balloon of mass 237 kg is filled with helium gas until its volume is 318 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3. (b) Calculate the buoyant force acting on the balloon.________N (c) Find the net force on
asked by Amanda 
Math
A fishing boat leaves port at 11 miles per hour at a bearing of 210 degrees for 2 hours, then turns to a bearing of 250 degrees at 8 miles per hour for 4 hours, and finally changes to a bearing of 280 degrees at 7 miles per hour for 2 hours. At this point,
asked by Shruti 
History,Art
I need to find a picture of 2 paintings: Crimson Rambler by Philip Hale and Automat by Edward Hopper. I also need some assistance with this assignment involving these two paintings. I have to outline a story I would write about the woman in the
asked by John 
physics
If an object is dropped from a tall building and hits the ground 3.0 s. later, what is the magnitude of the object's displacement in 1.0 s.; in 2.0 s.? for 1.0s i got 9.8 for 2.0s i got 20. is this correct?
asked by kathryn 
science
Assume an average human cell has a cell cycle of 20 hours. Calculate how many cells there would be after 80 hours.
asked by john 
SCIENCE 9 URGENT!!
i wrote these questions before but no one helped me so im writing them again 1. a.) name the structures of the male reproductive system that sperm do not travel through. b.) what is the name given to these structures? 2. Name the other body system that the
asked by Sarahh 
science
How do I draw a diagram showing how ear defenders work?
asked by hjjj 
math
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 2A (amperes), the resistance is 115ohms. What is the resistance when the current is 5A ?
asked by n 
math
 Juwan and Jake both have money in their pockets. If Juwan gave Jake 15 cent then they both would have the same amount of money. However, if Jake gave Juwan 15 cent , then Juwan would have 5 times as much money as Jake would have. How much money do Juwan
asked by Jose 
Geometry
In a garden, a birdbath 2ft 6 in. tall casts an 18in. shadow at the same time an oak tree casts a 90ft shadow. How tall is the oak tree?
asked by idk 
Algebra
At the outrage concert, 723 tickets were sold for $3/student and $5/nonstudent. the benefit raised $2815. How many nonstudent tickets were sold
asked by BethAnn 
Dressmaker
when paper pattern pieces are dovetailed in a cutting layout, they're placed so they?
asked by Donna 
English
When in the book does does Huck show care for someone elses welfare? What page?
asked by Reagan 
math
Of the 15 teams in the National Hockey League Eastern Conference, three of them are based in canadian cities. Each year, eight of these teams qualify for the playoffs. Assuming that all the 15 teams have an equal chance of getting into the playoffs, what
asked by Carol 
math
Mercury has a density of 13.6 g/cm^3. What is the specific gravity of mercury? A. 13.6 g B. 13.6 cm C. 13.6 cm^3 D. 13.6
asked by shana 
Physics HELP!
A simple pendulum consists of a small object of mass 7.40 kg hanging at the end of a 2.10 m long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string
asked by Brad 
physics
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge. This machine consists of a long arm, to one end of which is attached
asked by D 
physics
calculate the period of a ball tied to a string of length 1.9 m making 1.5 revolutions every second
asked by shaniqua 
science
Calculate the heat of combustion of this wax in kJ/mol. How much energy is produced per carbon? What is the limiting reagent? I have the Q=m*C*deltaT equation to be 10460.45 joules using 100.1 grams C25H52, 25 degrees C, and 4.18 J/gC. I don't know how to
asked by Tony 
latin
what is a derivative of regina
asked by maureen 
math
alan scored a total of 14 points for answering all 15 questions on a math quiz for every correctly answered question alan got 2 points for every wrong ahe lost 2 points how many questions did he answer correclty
asked by Anonymous 
Maths
A car showroom had 10y cars, 20y motorcycles and 18 vans. In a particular month, 4y cars , 3y motorcycles and 15 vans were sold. a.) Find the total number of wheels on the remaining vehicles in terms of x. b.) If y=21, how many wheels were there? An indoor
asked by Alexander 
Math
is 12x12=144?
asked by OSAMA 
UT
At STP a sample of neon gas occupies 502 cm3. How many moles of neon gas does this represent? answer in mols
asked by Stephanie 
chemistry
Suppose you have 0.500 M sucrose stock solution. How do you prepare 250 mL of 0.348 M sucrose solution ?
asked by tracy 
physics
2) Tube (b) is also filled with water, A1 is 0.05m2 and A2 is 0.08m2 Two pistons are placed in both ends of the tube and forces, F1 and F2 are exerted on the pistons so that they remain at the same height. If F1 = 20N what is F2? (I got the answer to this
asked by Margaret 
math
D angle of elevation of a building frm a measuring instruments placed on d ground is 30 degree if d building is 40m high, how far is d instrument frm d foot of d building.
asked by Akintayo 
statistics
Of the 15 teams in the National Hockey League Eastern Conference, three of them are based in canadian cities. Each year, eight of these teams qualify for the playoffs. Assuming that all the 15 teams have an equal chance of getting into the playoffs, what
asked by Anonymous 
physics
What is the terminal speed for an 79.0kg skier going down a 42.0 snowcovered slope on wooden skis uk = 0.060 Assume that the skier is 1.60m tall and 0.500m wide.
asked by soul 
Physics
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 31 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 145 m), the block swings toward
asked by Don 
Statistics
Let’s suppose a randomly selected sample of 75 American teenagers watches an average of 1472 hours of television per year with a standard deviation of 250 hours. Construct the 95% confidence interval (CI) for the mean number of hours American teenagers
asked by Olivia 
science
what does low pressure over land and high pressure over water form? A)a sea breeze C)global wind B)a land breeze D)a front My answer is A), am i right? if not please tell me why and your answer.
asked by May 
physics
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 4.20 104 s. What is the speed at which the satellite travels?
asked by Don 
Math
A fishing boat leaves port at 11 miles per hour at a bearing of 210 degrees for 2 hours, then turns to a bearing of 250 degrees at 8 miles per hour for 4 hours, and finally changes to a bearing of 280 degrees at 7 miles per hour for 2 hours. At this point,
asked by Shruti 
math
a mufffin recipe calls for 1 3/4 cups of sugar. How many cups of sugar are needed if only 1/4 of the recipe is being made?
asked by sb 
physics
In designing rotating space stations to provide for artificialgravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness begin to appear when the rotational
asked by Anonymous 
physics
Determine the moment of inertia for three children weighing 57.0 lb, 42.0 lb and 78 lb sitting at different points on the edge of a rotating merrygoround, which has a radius of 12 ft.
asked by ravi 
Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
asked by Ivan 
math
a figure is made up of two identical triangles a 15 inch by 12 inch rectangle and a square of side 19 inchs what is the lenght of one side of each triangle if all the sides of the triangles are equal in lenght
asked by Anonymous 
math HELP!!!!!!!!!
1. Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point)(–2, 4) and (6, 6) (2, 4) and (6, 6) (–2, 4) and (6, –6) (2, –1) and (–3, 3)
asked by ? 
d
Calculus help!!Suppose an earthquake is measured with a magnitude of 6 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake
asked by Anonymous 
Math
Determine how much money will be in a savings account if the initial deposit was $1000 and the interest rate is 4% compounded continuously for 15 years, 6 months.
asked by Lee Hatchett 
math
A fishing boat leaves port at 11 miles per hour at a bearing of 210 degrees for 2 hours, then turns to a bearing of 250 degrees at 8 miles per hour for 4 hours, and finally changes to a bearing of 280 degrees at 7 miles per hour for 2 hours. At this point,
asked by Shruti 
Physics
A 60 mm mortar round is capable of being launched at 540 km/hr. If a target is located at a distance of 0.6 km and the mortar takes 7.5 s to reach the target, at what angle must the launcher be set to hit the target?
asked by Katie 
Math perimeter
How many inches of matting are needed to frame an 8in by 11 in print? 38?
asked by Lance 
Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
asked by Ivan 
math
On a cold winter day, the temperature is 10.0º C. What is the reading on the Fahrenheit scale? A. 10.0 oF B. 12.0 oF C. 13.0 oF D. 14.0 oF I say A
asked by Drew 
math
how do you do anarrays and an expanded algorithm problem find each partial product then add to find the product. 29 x47  ()() ()()() ()()() + ()()()  ()()()()
asked by virginia 
ipc
A hailstone traveling with a velocity of 43 meters/second comes to a virtual stop 0.28 seconds after hitting water. What is the magnitude of its acceleration in the water?
asked by Anonymous 
math one
The points (0, 5) and (x, y) have a slope of 0. What could be the coordinates of the point (x, y)?
asked by Anonymous 
Physics
John’s mass is 81.0 kg, and Barbara’s is 62.4 kg. He is standing on the x axis at xJ = +9.41 m, while she is standing on the x axis at xB = +4.34 m. They switch positions. How far and in which direction does their center of mass move as a result of the
asked by Orla 
Math
A farmer has 20 pigs ans sheep.he has 6 fewer sheep than pigs. How many pigs does he have?
asked by Jo 
math
Sally is making cookies. To make a dozen cookies, she needs 1/4 cup brown sugar. How many cups of brown sugar does Selena need to make 4 2/3 dozen cookies?
asked by sb 
math
Jack and Jill wash a car at the same rate . Working together it takes them an hour and 10 minutes to wash a car. One day jack started washing a car by himself at 2:30 p m. When he was half way done , Jill joined him . What time did they finish washing the
asked by Jose 
precalc help !!!!!!!
1)tan^2x=3 ? 2)tan x sin^2x=tan x ? 3)2cosx sinx  cos x=0
asked by Haley 
Multiplying and Dividing Decimals
Sam and 3 friends ate lunch at Red Lobster. They decided to split the bill evenly. The total bill was $71.80. How much was each person's share? *Note: Please do not just give me the answer, but also show me how said answer was achieved and the steps to
asked by Terra 
math
the figure is made of two identical triangles a 15 inch by 12 inch rectangle and a square of side 19 inches what is the length of one side of each triangle if all the sides of the triangles are equal in length
asked by Anonymous 
math
what is the mass of 12.0 ml of a substance with the density of 0.922 g/cm3? A. 1.11g B. 0.11g C. 11.1 g I think C.
asked by shana 
math URGENT!!!!!!!
a rectangular sheet of paper is folded in half, with the crease parallel to the shorter edge. it happens that the ratio of longer side to shorter side remains unchanged. what is this ratio? answer this and explain how u got the answer.. PLEASE??!
asked by dan 
Calculus 2
The pressure P of a gas is related to its volume V by the formula P=k/V where k is a constant. A quantity of gas with an initial volume of 1 cubic meter and a pressure of 2.5 newtons per square meter expands to a volume of 16 cubic meters. Find the work
asked by Heather 
Statistics
The value of the correlation coefficient can be between 0 and 1.True or false?
asked by jassi 
Physics
Two blocks of masses m1 = 2.00 kg and m2 = 4.50 kg are each released from rest at a height of y = 5.80 m on a frictionless track, as shown in the figure below, and undergo an elastic headon collision. (a) Determine the velocity of each block just before
asked by Corey 
Algebra II
John can clean an attic in 11 hours. DeShawn can clean the same attic in 17 hours. If they worked together how long would it take them? Please solve and show the work. Rounding the answer to the nearest hundredth.
asked by Trista 
math
I am a digit in each of the numerals: 756 657 576. My value is different in all three numerals. What digit am I? What value do I stand for in each numeral?
asked by Anonymous 
Calc II
Use the comparison or limit comparison test to decide if the following series converge. Series from n=1 to infinity of (4sin n) / ((n^2)+1) and the series from n=1 to infinity of (4sin n) / ((2^n) +1). For each series which converges, give an
asked by Lauren 
Calculus(Urgent help)
f(x)=x^33x^2+3x+1 near 2 (at a=2) A. Use Linear approximation to approximate. b.is this underestimate or overestimate? Justify answer. C.Approximate f(2.25) using the linear approximation and compare the answer with the exact value. Thanks.
asked by Ren 
Chemistry Bobpursley
Please choose the correct option to complete the following statements. (6 marks) a) If a large amount of base is added to water, the pH of resulting solution would most likely Increase/decrease/remain the same Explain your choice b) If a small amount of
asked by Many 
Science 8R  Ms. Sue Please Help!!!!
Homework  Draw a cartoon that represent a solid, liquid, and a gas. I'm struggling with this assignment, please help me!!!!
asked by Laruen 
science
How much total work is done by 450N girl who lifts a 52N backpack 1.2m to her shoulders and then climbs a ladder 3.0m high?
asked by Joe 
Statistics
Lead (Pb) concentrations were measured in waterfowl eggshell samples from two locations. In n1 = 41 samples from a location downstream from a paper mill, the mean Pb concentration was 1 x = 0.13 ppm with a standard deviation of s1 = 0.04 ppm. In n2 = 31
asked by Erik 
Math
What value of b makes the equation below true? b+1/4=12/12 Please show work Thanks
asked by Jennifer 
math
Write your answer using only positive exponents. 30u^15/34u^16
asked by ana 
algebra
Camille can swim against the current at 1.5m/s and with the current at 3.5m/s. Write and equation that expresses each fact. How fast can she swim in still water?
asked by Samantha 
Chemistry
The following questions relate to acid base reactions. a) What type of reaction is said to occur when an acid reacts with a base.? ……………………………… b) What are the general products of such a reaction? i.e. An acid + a base produces
asked by Many 
Grammar and capitalization
Select the sentence with the correct capitalization. A) The Oregon state fair is held in western Oregon. B) The Oregon state fair is held in Western Oregon. C) The Oregon State Fair is held in western Oregon. I answered C
asked by Marie 
Physics
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle è = 20°. For a speed of 40 m/s, at what value of the distance d should a driver
asked by Don 
Chemistry
Energy Level Transfer of Hydrogen's electron. For each line, determine the prinicpal energy level to which hydrogen's electron was excited. When the electron fell to the 2nd level, energy was released corresponding to each of the lines. E= 2.179X1018
asked by Melody 
Physics
An 7.5 crate is pulled 5.4 up a 30 degree incline by a rope angled 19 degrees above the incline. The tension in the rope is 130N and the crate's coefficient of kinetic friction on the incline is 0.24. How much work is done by tension? by gravity? by the
asked by Anonymous 
Chemistry
Please choose the correct option to complete the following statements. (6 marks) a) If a large amount of base is added to water, the pH of resulting solution would most likely Increase/decrease/remain the same Explain your choice b) If a small amount of
asked by Helen 
Math
a certain state's lottery game, lotto, is set up so that each player pays $1 per ticket and chooses six different numbers from 1 to 49. if the six numbers chosen match the six numbers drawn each Saturday evening, the player wins the top cash prize. the
asked by Tish 
physics
While polishing a 1kg brass statue, you do 760 J of work against sliding friction. Assuming that all of the resulting heat flows into the statue, how much does its temperature rise?
asked by Anonymous 
Chemistry
If an object weighs 1.32 g/mL will it float or sink in water?
asked by Paige 
chemistry
If a saline solution has a concentration of 0.25 g per mL, calculate the following. a) The concentration of this solution in %w/v. b) The concentration of this solution in grams per litre (g/L). c) The concentration of this solution in milligrams per mL
asked by Hannah 
7th grade math help Ms. Sue please
1. 0.003 as a percent 2. 0.00007 as a percent My answers: 1.0.03% 2. 0.0007%
asked by Delilah 
Grammar and capitalization
Select the sentence with the correct capitalization. A) Most radiology departments are hectic. B) Most Radiology Departments are hectic. C) Most Radiology departments are hectic. I answered A
asked by Marie 
Physics
A freight train has a mass of 1.7 × 10^7 kg. If the locomotive can exert a constant pull of 5.2 × 10^5 N, how long would it take to increase the speed of the train from rest to 74.6 km/h? Disregard friction. Answer in units of s
asked by John 
physics
If you drop a 4 pound watermelon and a 2 pound cabbage the same distance, in a vacuum, what will happen?
asked by Anonymous 
7th grade social studies question Ms. Sue please
Can you give me links to these questions please? What did the Telegraph Lead to? What was life like after the Telegraph? Positive and negative Impacts of the Telegraph
asked by Delilah 
Physics
A rubber ball (mass 0.30 kg) is dropped from a height of 2.0 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.9 m/s. (a) What is the magnitude and direction of the impulse imparted by the floor to the ball? MAGNITUDE: 3.05 kg
asked by Audrey 
physics
You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 97kg cylinder of radius R that has a maximum angular speed of 330 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of
asked by Jack 
Math
Jill made some cookies. Jill gave 1/4 of her cookies to Bob. Then Jill gave 1/2 of the remaining cookies to Joe. At this point, Jill had 18 cookies left. How many cookies did Jill have at first?
asked by Brooke 
physics
Find the resultant, in magnitude and direction of a force of 40 N which makes an angle with the + X axis of 38o and a force of 20 N acting along the + X axis. Find the x and y components of the resultant and express them as i and j vectors.
asked by Anonymous 
math
A square is 9in on each side what is the perimeter 36? A rectangle is 2 width 9 height what is the perimeter 22? A figure is 7km width 9 km height 2km 4km 7km and 3 km what is the perimeter? 32?
asked by Jerald 
McKay
website to help identify physical or mental action verbs?
asked by Elsa 
Arrays and an expanded algorithm
use the grid to draw a rectangle. Then complete the calculation. 30 x19
asked by Adrianna 
Grammar and capitalization
Select the sentence with the correct capitalization. A) She had cushingoid features. B) She had Cushingoid features. C) She had Cushingoid Features. I answered B
asked by Marie 
math
Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) (–2, 4) and (6, 6) (2, 4) and (6, 6) (–2, 4) and (6, –6) (2, –1) and (–3, 3)
asked by ? 
physics
The blade of a windshield wiper moves through an angle of 90.0° in 0.31 s. The tip of the blade moves on the arc of a circle that has a radius of 0.59 m. What is the magnitude of the centripetal acceleration of the tip of the blade?
asked by Donald 
physics
A charge of +Q and a charge of +2Q are separated by a distance r. The electric force of +2Q on +Q has a magnitude of F and is directed to the right. Which one of the following statements is correct regarding the electric force of +Q on +2Q?
asked by Lauren 
physical science
Johniece jogs 7 feet then turns 90 degrees and jogs 2 feet. What is the distance and the displacement ?
asked by lilquita 
math
what is the specific gravity of a substance that has a density of 1.59 g/cm3? A. 1.59 g/mL B. 1.59 g C. 1.59 D. 1.59 mL I think B.
asked by shana 
Physics
A stone has a mass of 6.00 103 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.73. When the tire surface is rotating at a maximum
asked by Don 
Math
The radius of Earth is 3,959 miles. A spacecraft orbits 6 miles above the surface of Earth. The spacecraft completes 220° of a revolution around Earth in one day. What is the average speed of the spacecraft?
asked by Chris 
algebra
joe has a collection of nickles and dimes that is worth $6.10. If the number of dimes was tripled and the number of nickles was increased by 49, the value of coins would be $18.95.how many nickles and dimes does he have?
asked by marvetta 
College Algebra
How much money would you have to invest at 8% compounded semiannually so that the total investment has a value of $2,280 after one year?
asked by Elicia 
english
The strategies we use when reading informational texts are ________as/from when we read literary texts.
asked by Anonymous 
5th grade language
In the following poem I need to know examples of assonance in lines 14 1. There once was a cowboy named Ray 2. Who never had that much to say 3. Except for the times 4. Stampedes stopped on a dime 5. When that cowboy named Ray hollered "hey"
asked by Jacob 
math
how do you know when you have found all the factors of a numbers?
asked by derrick 
math
a cook needs 1 1/2 cups of sugar. the cook has 3/8 cup. how many more cups of sugar does the cook need
asked by jamiea 
Math perimeter
Jessica wants to put a fence around her 10 ft by 13 ft rectangular garden how many ft of fencing will she need 46?
asked by Jerald 
Grammar and capitalization
Select the sentence with the correct capitalization. A) I like to watch my grandchildren open gifts on Christmas morning. B) I like to watch my Grandchildren open gifts on Christmas morning. C) I like to watch my grandchildren open gifts on Christmas
asked by Marie 
Chemistry
For each of the bonds listed below use hybridized orbitals to classify the type of sigma bond that is formed between the two atoms. a) The sigma bond between boron and hydrogen in BH3 answer: sp^2  p b) the sigma bond between S and fluoride in SF4.
asked by Confused 
physics
A disk with a mass of 16 kg and a radius of 41 cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 70kg block, as shown in the figure. Find the acceleration of the block, assuming that the
asked by ravi 
Statistics
Body masses were measured for five female and five male adult Anolis lizards. Test the hypothesis of no difference in mean body mass of females and males versus the alternative that a difference exists. Use a 5% level of significance. Body Mass (g):
asked by Anonymous 
health
your client has received a patchwork bedspread made by a friendhow would you support the client to use it
asked by jessica 
Math
A 2.5 ton truck stops and a 1300 pound car slams the brakes and skids 26 feet and hits the truck at 40 mph pushing the truck a foots length. how fast was the 1300 pound car traveling?
asked by Edward 
Math
Andrea sells tickets at the Showtime Cinema. On Thursday night, Back to the Future was playing. Adults, senior citizens and children bought tickets at the following rates: Adults $5.00 Senior Citizens $1.00 Children $.10 Andrea sold 100 tickets worth $100.
asked by Robin 
math
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 2A (amperes), the resistance is 115ohms. What is the resistance when the current is 5A ?
asked by n 
Physics
For a single movable pulley with a mechanical advantage of 2, how much rope must be pulled to lift a 150 neuton load 2 meters above the ground?
asked by Kayla 
math
Solve the following and express the answer in scientific notation: (5.4 x 10^4)  (2.5 x 10^6) A. 2.45 x 10^6 B. 2.45 x 10^6 C. 2.45 x 10^8 D. 2.44 x 10^2 I say D
asked by shana 
Physics
On a banked race track, the smallest circular path on which cars can move has a radius of 115 m, while the largest has a radius 165 m, as the drawing illustrates. The height of the outer wall is 18 m.
asked by D 
statistics
A normal distribution has a mean of 100 and standard deviation of 20. What is the probability of randomly selecting a score less than 130 from this distribution? a, p=0.9032 b, p=0.9332 c, p=0.0968 d, p=0.0668
asked by Robbie 
Maths  Integration by parts
Integral x^2 sin(x) dx
asked by Anonymous 
PreAlgebra Help Ms. Sue Please!!!
Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). A.(–2, 4) and (6, 6) B.(2, 4) and (6, 6) C.(–2, 4) and (6, –6) D.(2, –1) and (–3, 3)
asked by Anonymous 
Grammar and capitalization
Select the sentence with the correct capitalization. A) While driving his Mercedes down Main Street, he was rearended by a Toyota. B) While driving his Mercedes down Main street, he was rearended by a Toyota. C) while driving his mercedes down Main
asked by Marie 
Algebra
What is the rule?? INPUT OUTPUT ______ 12 9 ______ ______ 6 ______ 16 7 _______
asked by Mary 
math
How many inches of matting are needed to frame an 8 in by 11 in print 38in?
asked by Lance 
math
Solve the following and express the answer in scientific notation:(3.5 x 10^6 / (4.2 x 10^8) A . 8.3 X 10^3 b. 8.3 X 10^3 c. 8.3 X 10^2 d. 8.3 X 10^3 I say A
asked by shana 
math
beth and lewis buy the same amount of fish pellets if beth feeds her fish 14 fish pellets each day a container of pellets will last 20 days if lewis feeds his fish 8 fish pellets eah day how many more days will the container of pellets last lewis
asked by Anonymous 
Lang Atrs
3. Read the following lines from “Fable for When There’s No Way Out”: “Despair tempts him / to just go limp.” What is the best interpretation of these lines? a. The chick is angry at how difficult it is to break free from his shell. b. The chick
asked by Jman 
Science
What effect will decrese plant growth have on oxygen and carbon dioxide in the atmosphere?
asked by Mandeep 
Persuasive Wrtiting
Teen Moms: Aren’t Ready Did you know that three out of ten teen girls in the U.S. will get pregnant at least once at the age of nineteen or younger, so if you totaled that up, it is about 750,000 pregnancies each year? Ninetypercent of teenagers won’t
asked by Mandy 
Chemistry
What role does a catalyst play in a chemical reaction in terms of rate and yield
asked by Many 
algr.2
Convert to slope/intercept form (y=mx+b) and find slope y =a/b. 1.3X2y=14 2. 12X=4y8. 216x=3y
asked by hanah bannana 
algebra
use polynomial long division to divide 20x^3 10x^2 16x 8 by 5x^2 4
asked by jenkins 
science geology
I have to draw a topographical map on poster board of an imaginary island. It must have 2 mountains, 12 MI apart, one with a benchmark of 1510 ft and the other of 1075 ft. We must include 2 streams, one that flows down the larger lake into the ocean, the
asked by Andrea 
math
Sort these numbers. Describe your sort rule. 5 10 16 19 24 37 40
asked by Deborah 
math
a rectangular solid has a volume of 640 cubic units. the width is 3 units more than the height and the length is 1 unit more than three times the height. find the dimensions of the solid.
asked by sissy fafafa 
Physics
What is one way in which the magnetic field is similar to the electric field and one way in which the magnetic field is different from the electric field?
asked by Tyler 
Physics practical
1)explaind the meaning of young modulus 2)what do you understand by the modulus of elasticity of a cantilever{practically} 3)what are the precautions observed when performing a cantilever practical 4)what is the conclusion from the practical please answers
asked by Bash 
English
They worked in the garden, but they worked wrong? What did they dod wrong? (Is the sentences grammatical? Do we have to use 'wrongly' instead of 'wrong'?)
asked by rfvv 
Trig
Give: a=alpha B=beta csc a= 2 pi/2
asked by Sierra 
math
a frog sat on a number line, it was on the number 18. it made two equal hops and anded at 0. where did it land first?
asked by corey 
Physics
If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do
asked by Alexis 
grammar
Should this be two sentences or one? I know second is a transition, but not sure it is a conjunction... First he asked to who I was emailing second he wanted to know who had ridden a motorcycle down the alley.
asked by Burt 
Grammar and capitalization
Select the sentence with the correct capitalization. A) I think Dad will be working late all fall quarter. B) I think Dad will be working late all Fall quarter. C) I think dad will be working late all fall quarter. I answered C but feel that A could be
asked by Marie 
math
If the density of 1.77 grams of gold is 19.3 g/mL, what is the volume
asked by shana 
math
If 5/17 of a región is shaded how much isnt
asked by Anonymous 
geometry
abc is an iscsceles triange. ab is the longest side with egnth 4x+4. bc=8x+3. find ab
asked by henna 
English
In Huckleberry Finn when does Jim act as a father to Huck? What chapter or page is this on?
asked by Reagan 
Dimension Personal Education
Select the sentence that does not have pronounantecedent error. 1. Most moviegoers like to bring his owm snacks to save money. 2. Most moviegoers like to bring their own snacks to save money.
asked by Jackie 
Statistics
Lead (Pb) concentrations were measured in waterfowl eggshell samples from two locations. In n1 = 41 samples from a location downstream from a paper mill, the mean Pb concentration was 1 x = 0.13 ppm with a standard deviation of s1 = 0.04 ppm. In n2 = 31
asked by Erik 
General Chemistry.
The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in a 1.3 cm cuvette or path length. The absorbance is 0.765 and the molar absorptivity coefficient is 86,300 M–1cm–1. The molecular weight for chlorophyll
asked by Shardae. 
math
if the density of .88 grams of mercury is 13.6 g/ml, what is the volume? A. 0.065 mg B. 0.065 C. 0.065 ml D. 0.065 L I think its C.
asked by shana 
Science
A 50N force was applied to a 10kg ball. Find the acceleration of the ball
asked by Joy 
math
i'am a four digit numeral between 3000 and 4000.My ones digit is 2 greater than my thousands digit. the two digits are the same. If the sum of my digit is, 20, what number am i in roman numeral?
asked by andrei 
math
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 2A (amperes), the resistance is 115ohms. What is the resistance when the current is 5A ?
asked by n 
Maths  Integration by Parts
Question 1 ç e^2x Cos(4x) dx Question 2) ç ãx sin(x) dx Question 3) ç x^2 sin(x) dx
asked by Anonymous 
math
what is the mass of 1.00 L of ethanol? Ethanol has a density of 0.798 g/ml. (hint: one liter is 10^3 mL.) A. 0.789 g B. 789 g C. 789 L I think C
asked by shana 
physics
If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do
asked by Alexis 
Algebra 2
DR=1550+42t15t=1550=27t
asked by Julia 
PHYSICS
What will be the final temperature if 1.9 x 10^2 kJ of heat is added to 0.5 kg of ice at 0 deg. C?
asked by Sadie 
Physics practical
1)explaind the meaning of young modulus 2)what do you understand by the modulus of elasticity of a cantilever{practically} 3)what are the precautions observed when performing a cantilever practical 4)what is the conclusion from the practical
asked by Bash 
math
if 3x+5y=k than what values could k have so that the x intercept and y intercept of the equation's graph would both be integers? explain.
asked by ashanti 
Math
The sum of four consecutiv multipl of 4 is 120.find these multipls. Plz gve me sltn
asked by Simran kaur 
College Physics
The electric motor of a model train accelerates the train from rest to 0.660 m/s in 31.0 ms. The total mass of the train is 650 g. Find the average power delivered to the train during its acceleration.
asked by Anonymous 
math
whats the slope of x+8y=5
asked by Anonymous 
math perimeter
A rectangle is 29in width and 14 in height what is the perimeter 86? A rectangle is 11yd width and 13 yd height what is the perimeter 48? A square is 4 in on each side what is the perimeter 16?
asked by Jerald 
math
Solve the following and express the answer in scientific notation: (5.4 x 10^4) x (4.5 x 10^8) A. 2.4 x 10^10 B. 24 x 10^11 C. 24 x 10^12 D. 2.4 x 10^3 I say D
asked by Drew 
math
A bag of potatoes weighs 3 7/16 pounds. if the average potato weighs 3/16 pound, about how many potatoes are in the bag? Do I divide 3 7/16 by 3/16 therefore 3 7/16 X 16/1 55/16 X 16/1 = 55 potatoes?
asked by sb 
Economics
Can someone please help me know why Kenya is currently in a trade deficit? I don't know which imports exceed the value of exports. Thanks
asked by Anonymous 
math
Sally does 42 push ups in 2 minutes. What is the unit rate expressed as a fraction?
asked by tenita 
math algebra
Mrs. martinez has $10,000 to invest.One bank offers her a return of 7.5% on the whole sum. Another bank offers her a return of 8% on part of the sum, and 6% on the rest of the sum. How much of the $10,000 would need to be invested at 8% at the second bank,
asked by kevin 
Chemistry
Find the energy( in KJ) of a wave with the wavelength of 507 nm. First, I turn the 507 nm into meter then divide the speed of light by it which give me the frequency. Then I take the frequency and multiply by the planck. Then I would convert the Joule to
asked by Shadow 
math
I am a digit in each of the numerals: 756 657 576. My value is different in all three numerals. What digit am I? What value do I stand for in each numeral?
asked by Anonymous 
Physics
A computer is reading data from a rotating CDROM. At a point that is 0.035 m from the center of the disc, the centripetal acceleration is 122 m/s2. What is the centripetal acceleration at a point that is 0.064 m from the center of the disc?
asked by Anonymous 
math
Solve the following and express the answer in scientific notation: 10^3 x 10^4. A. 10^1 B. 10^1 c. 10^6 D. 10^7 I say D
asked by shana 
Chemistry
If we have solution of 4g CH3COONa and 4g NaOH obtained NaCl with efficiency 90% we have to calculate pH oh Nacl and we know that Ka= 1.8x10ˆ5. Pleas help me i have exam tnext weak Im strudent but I don't undestant this???
asked by Linda Berisha 
english
where can I get a comparism and contrast for the perils of indifference and the power of nonviolence
asked by debbie 
math
Convert 1,144 oF to oC A. 617.8 B. 617.8 oC C. −617.8 oC D. −617.8 I say B
asked by shana 
math
The melting point of helium is 272.2 oC. Express this temperature in kelvins. A. 272 K B. 8.0 K C. 0.8 K D. 545 K I say D.
asked by shana 
Math
Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.) f(x)=x^3+3x^21 on [3,1]
asked by Britney 
physics
If an object is thrown up at an initial velocity of 9.8 m/s, what would be the magnitude of the final velocity upon impact with the ground? im doing an online class and i don't have a book so if you could explain some of the question that would be great
asked by kathryn 
math
Solve the following and express the answer in scientific notation: 10^3 x 10^4 x 10^2 A. 10^5 B. 10^6 C. 10^7 d. 10^8 I say A
asked by shana 
Maths Integration by parts
Intergral square root of x sin(x) dx
asked by Anonymous 
fractions from least to greatest
can you list 3/4, 3/5, and 5/6 from least to greatest
asked by john 
math
what is an equivalent fraction to 3/8 where the greatest demonimator is less than 1000
asked by jo martin 
Grammar and capitalization
Select the sentence with the correct capitalization. A) The patient, who claimed to be an "exChristian" cried out, "praise God," once the pain medication kicked in. B) The patient, who claimed to be an "ExChristian" cried out, "Praise God," once the pain
asked by Marie 
Math
When finding the perimeter you have to add the sides not multiply right? For example a rectangle is 14 width and 29 height would the perimeter be 86in?
asked by Lance 
math
To add numbers using scientific notation, multiply the coefficients and then add the exponents. true or false true
asked by shana 
Physics
Two banked curves have the same radius. Curve A is banked at an angle of 11°, and curve B is banked at an angle of 16°. A car can travel around curve A without relying on friction at a speed of 18.5 m/s. At what speed can this car travel around curve B
asked by Don 
math
Find the absolute maximum value and the absolute minimum value, if any, of the function. g(t)=t/t2 on[4,6]
asked by Britney 
math
If melted butter were poured into a glass of milk and allowed to rest, two distinct layers would be visible. How would these layers appear? A. The melted butter would lie above the layer of milk because butter is less dense than milk. B. The melted butter
asked by shana 
Algebra
can 3x=5x be solved?
asked by BethAnn 
Persnal Dimension of Education
True or False Subjuect pronouns include me, her, him, and them.
asked by Jackie 
Personal Dimension
Select the sentence that has correct pronoun usage.... 1. Julie plans to travel this summer with Oscar and me. 2. Julie plans to travel this summer with Osar and I.
asked by Jackie 
Health
how would you support a client who is frighted of the dark
asked by jessica 
english
The location of prospero's island is never given but what kind of place is it ? Design a simple set to suggest the various locations where the action takes place , so that the scene changes quickly.
asked by kris 
math of investment
I need a prayes that is related to the terms of mathemetics of investments. please! thank you!
asked by jenny 
algebra
If a stone is tossed from the of a 310 meter building, the height of the stone as a function of time is given by h(t)= 9.8t^2 10t +310
asked by destiny 
math
43+126_=101? Please help me.
asked by Anonymous 
math
if i shot 621 balls and made 474 what is my percentage
asked by Anonymous 
math
if i shot 287 balls and made 237 what is my percentage
asked by Anonymous 
algebra
how can you tell by looking at the coordinates of a point whether the point is on the x axis or y axis?
asked by stephanie 
physics
If an object is thrown up at an initial velocity of 9.8 m/s, what would be the magnitude of the final velocity upon impact with the ground? im doing an online class and i don't have a book so if you could explain some of the question that would be great
asked by kathryn 
Math
Establish the identity by induction 1/1.3 1/2.4 ... 1/n(n 2)
asked by Bash 
math
write the answers in simplest form.3/4+5/8 and 3/5+1/10+1/4 and 5/83/16+4/3
asked by lyka 
Math
dana has a piece of rope that measure 3/4 meter. she used 1/2 of it for project. how much rope did she use?
asked by Denise 
math
how can you tell by looking at the coordinates of a point whether the point is on the x axis or y axis?
asked by stephanie 
budget
which one of the following budget items would probably be considered a fixed expense? A.entertainment B.savings C.clothing D.insurance premiums
asked by empresskt 
7/8 Math
what is an irrational number and a rational number?
asked by Christabelle 
math
Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.) f(x)=x^3+3x^21 on [3,1]
asked by Britney 
math
If 5/17 of a región is shaded how much isnt
asked by Anonymous 
social studies
what resources did early native american used
asked by john 
science
calculate the number of molecules in 200 gm of caco3.
asked by Unknown 
math
Solve the following and express the answer in scientific notation: (5.3 x 10^4) + (2.2 x 10^3) A. 5.5 x 10^4 B. 7.5 x 10^3 C. 7.5 x 10^7 D. 11.7 x 10^7 I say A
asked by shana 
Math
Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.) f(x)=x^3+3x^21 on [3,1]
asked by Britney 
algebra
given the quadratic function f(x) 4x^2 24x +36 find the value of x such that f(x)=4
asked by RJ 
algebra
what is the smallest common factor other than 1 of the numbers 26 and 36
asked by Anonymous 
Math
The distance btwn two stations A and B is 230km.two motrcyclst start simultaneously frm A & B in opposite directn and the distance btwn them aftr 3hour bcm 20km.if the speed of one motorcyclst is 10km hr les thn that of the other,find the speed of the two
asked by Simran kaur 
algebra
rewrite with positive exponents. assume that even roots are of non negative quantities and that all denominators are non zero (4xy^2)^2
asked by marvetta 
Implicit differentiation
implicit differentiation of x^3y^25x^2y+x=1
asked by Alex 
Grammar and capitalization
Select the sentence with the correct capitalization. A) On Wednesday I am going to go shopping with my Mother. B) On Wednesday I am going to go shopping with my mother. C) On Wednesday i am going to go shopping with my mother. I answered B
asked by Marie 
math
using 4 different digits, what is the least sum you can get ehrn you add two 2digit numbers?
asked by jp 
algebra
there is a circular tank with diameter 7 min a garden. what will be the cost of fixing fountain pipe all around the tank at the rate of $5 per meter
asked by bob 
math
The temperature of the water around a nuclear reactor core is about 300 oC. what is this temperature in degrees Fahrenheit? A. 27 oF B. 332 oF C. 572 of D. 573 oF I say D
asked by Drew 
math
1  . 4 = 3
asked by tenita 
Algebra
3x  1 = x + 99
asked by BethAnn 
Chemistry
550 mL of Ar at 632mm Hg will occupy what volume at 750mm Hg with the temperature remaining constant?
asked by Anonymous 
math
w15=9 w is a variable, I have to find what it equals
asked by t 
science
what ph is an acid
asked by aaa 
visual art
what are the different types of perspective
asked by nneka 
Math
The length of a rectangle is 2m more than is its B.find the dimensns of the rctngl if its permtr is 56m.
asked by Simran kaur 
algebra
6b+14=7b can u help me find out what b stands for in this problem.
asked by matt 
Math
5p+2q=3 7p+2q=11
asked by George 
math
1/3.3/5=
asked by tenita 
math
y=2x 6xy+8
asked by hjaaksd