Questions Asked on
January 26, 2012

Math
Calculate the size of angle marked in each diagram below
asked by Omolade 
calculus
Find Mx, My, and (x, y) for the laminas of uniform density ρ bounded by the graphs of the equations. (Use rho for ρ as necessary.) x = −y x = 5y − y2
asked by sammyg 
aliense egypt
each stone in the pyramids weighed several?
asked by lana 
harris middle school
a bag contains 5 red marbles,4 white marbles, and 9 blue marbles. you pick a marble without looking. find the probability of drawing a white marble.
asked by mary 
Dynamics of Business
11. Often, the _______ the risk, the _______ the rewards. A. higher; higher C. higher; lower B. lower; higher D. faster; quicker 12. When the government of Indonesia imposes a tax on imported electronics products to help its young electronics industry
asked by Heather 
calculus
An object moves along the xaxis, according to x= (pi/2)t + sin(pi t). a) What is the largest velocity such an object attains? b) Identify one interval on which the object is accelerating in a positive direction. Explain your reasoning. c) Name one part of
asked by pleh 
trig
If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)
asked by josh 
trig
Give the reciprocal of the following. 7/15
asked by josh 
trig
Find the remaining trigonometric ratios of θ if sin(θ) = 1/6 and θ is not in QIII cos tan cot csc sec
asked by josh 
trig
Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37
asked by josh 
Spanish
what does it mean when someone says "no me calles"
asked by Jared 
Geometry
what are the coordinates of the centroid of each triangle given the three vertices of D(0,3),C(1,0),B(4,0)?
asked by Dece 
Math
Mary was making sandwiches for the class picnic. 13 of the sandwiches had a slice of cheese. 14 had a slice of salami. 13 had a slice of tomato. 8 had a slice of cheese & a slice of tomato. Only 3 had a just a slice of salami. 5 had a slice of tomato, a
asked by Heather P. 
conversion
how do you convert g/mm^3 to kg/m^3
asked by jim 
math
mae has a oval racetrack. 2 curves, each is 1/2 of the circle and each on a radius of 21". 2 straightaways connect the circle and are 46" long. what is the total distance around the circle?
asked by maddie 
math
mae has a oval racetrack. 2 curves, each is 1/2 of the circle and each on a radius of 21". 2 straightaways connect the circle and are 46" long. what is the total distance around the circle?
asked by maddie 
math
Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. interval [0,72] sin square root of xdx where n=4
asked by konduru 
math
How can i divide a parallel line of 40cm into ratio 3:2:3
asked by Owolabii Tywo 
statistics
What is the alternative hypothesis for a null hypothesis stating that the average time a person keeps a cell phone is at most three years. Answer: Ha: mu > 3 State the null and alternative hypotheses for the following: You are investigating a complaint
asked by Anonymous 
physics
An sky object accelerates at 2m/s calculate the acting force on it
asked by Kachinga 
Physics
suppose the camera has only one len .if i want to take a sharp image of a distant object,how should the len move,forward or backward.how about if nearby object?
asked by amper 
pysics
A river is one mile wide and the water flows at the rate 3 miles/hour. If you can paddle a canoe 5 miles/hour in still water, then how long will it take you to paddle across the river and back? How long would it take you to travel one mile upstream
asked by christine 
lpu
A 100g wire is held under a tension of 250 N with one end at x = 0 and the other x = 10m. At time t = 0, pulse 1 is sent along the wire from the end at x = 10m. At time t = 30ms, pulse 2 is sent along the wire from the x = 0. At what position x do the
asked by vkm 
physics
Find the angular velocity of a body rotating with an acceleration of 2 rev/s square as it completes the 5th revolution after the start.
asked by Gaurav 
Math
∫sin^5 t/cos^2 t dt
asked by Adriana 
Chemistry
50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of
asked by Georgia 
Biology
Why does the diameter of arterioles increase when there is a constriction of smooth muscles?
asked by saphire 
blj
If 34 grams of ammonia react, how many grams of water formed?
asked by Anonymous 
Management
You would be well familiar with the term ‘contingency’. During a project you may face certain contingencies. In your opinion, should ‘contingency costs’ be included in project proposal. Why or why not, support your answer with appropriate reasons.
asked by Yasser 
physic
At which point between earth and sun, the intensity of the gravity field of the earth and sun are equal, if the mass of Earth is 6 x 10 to power 24 kg, the mass of the sun is 2 x 10 to power 30 kg while the distance between them is 15 x 10 to power 7 km?
asked by fjolla 
ENGLISH/JOURNALISM
Read the following information and ask yourself what is the most important or interesting fact. Write a focus sentence identifying that newsworthy angle: a. The New England Journal of Medicine released a study today. The study says people who abruptly quit
asked by blaze 
English
I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? I wrote them but I need your check: Biodiversity in water and waterways in
asked by Henry2 
English
Can you give me a good topic for 30 minute discussion in German language? I just want to warn you that the class is pretty lazy, unmotivated, always sleepy and uninterested. They are 18 and 19 years old and are learning German for 9 years as a foreign
asked by Mark 
Science/English
writeacher, I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? The project is addressed to 16yearold students with an
asked by Henry2 
English
Could you please check this? Thank you. 1) My English colleague will be at school this afternoon to welcome the French delegation. As I told you, I have afternoon lessons and then I'll be busy picking up my child from school.
asked by Henry2 
geometry
mDF=5.8 ,m
asked by pervez 
physical
A bullet of mass 0.01 kg is moving horizontally with a speed of 100 m/s when it hits a block of mass 2 kg that is at rest on a horizontal surface with a coefficient of friction of 0.4. After the collision the bullet becomes embedded in the block.
asked by dhaval 
physical science
A rectangular container measuring 16cm times 46cm times 67 cm is filled with water what is the mass of this volume of water in kilograms and grams? (take the density of water to be 1000 kg/m cube
asked by vicky 
Math
I need help with using arrays to multiply
asked by Jarel 
chemistry
Freshman in clooege decides to try her hand at pickling olives. According to the recipe, she needs to add 3 tsps. of salt to 1 cup diced olives. She erroneously adds 6 tsps instead. Each tsp weighs about 5g and contains 2300 mg of sodium. Determine the
asked by Sara 
Right Triangle Trigometery
If = 38° and z = 68 cm, what is the value of x to the nearest tenth of a centimeter?
asked by Kate 
math
At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet
asked by savannah 
Health Finance
Question Details Consider the following 2007 data for Newark General Hospital (in millions of dollars): Static Flexible Actual Budget Budget Results Revenues $4.7 $4.8 $4.5 Costs 4.1 4.1 4.2 Pro?ts 0.6 0.7 0.3 a. Calculate and interpret the pro?t variance.
asked by molamidi 
Algebra
Solve 1/3(3x6)^3+4
asked by Anonymous 
math
Write this as a ratio 3months to 3 years
asked by claudia kreuzer 
Physics
I have to create a teaching aid for physics based on the principles i have learnt like gravitation , mechanical properties and many more. I am not able to find the right experiment to demonstrate infront of my teacher.Please help me deal with this by
asked by confused 
physics
A soccer player kicks the ball toward a goal that is 27.8 m in front of him. The ball leaves his foot at a speed of 18.5 m/s and an angle of 30.4° above the ground. Find the speed of the ball when the goalie catches it in front of the net. (Note: The
asked by Kelly 
Physics
A cubic box of volume 4.2 multiplied by 102 m3 is filled with air at atmospheric pressure at 20°C. The box is closed and heated to 195°C. What is the net force on each side of the box? My attempted solution: .042^(1/3) = .3476 m for the area .042^(2/3)
asked by Anonymous 
physics
in the hydraulic machine shown, you observe that when the small piston is pulled down 10cm, yhe large piston is raised 1 cm. if the small piston is pushed down with a force of 100n, what is the most weight that the large piston can support?
asked by john 
physics
A 45.0 kg object is moving with a velocity of 17 m/s. How long must a 25.0 N force act on the object to bring it to a complete stop
asked by Karan 
English 3
1. Which sentence states an opinion held by American Romantic writers? a. Cities are centers of corruption and ugliness b. European literature has no traditions worth considering c. Westward expansion is exploitative and dangerous d. Ordinary readers do
asked by mysterychicken 
indruction to business
strategy to displease a customer
asked by Tanya 
marketing
Choose a real or made up example of a company, and describe at least three fixed costs the company has.
asked by Robby 
Chemistry
Using VSEPR what is the shape of ammonia (NH3) and water (H2O)?
asked by Bob 
chemistry
solar flares containing hot gases can rise to 120000 miles above the surface of the sun. What is the distance in kilometers? how do i set this up??
asked by julia 
Physics
is that right ideal gas only obey the boyles law under high temp and low pressure?
asked by Kong 
geometry
The lengths of the sides of a right triangle are a and b, and the hypotenuse is c. Find the area of the triangle. b = 2 in.; c = 6 in. A = sq. in. Click once to select an item at the bottom of the problem. Click again to drop the item in its correct place.
asked by Anonymous 
criminal investigations
how does investigating a robbery differ from investigating an assault
asked by Stacy 
chemistry
A copper foil is made from copper, absolutely free of impurities. Which term or terms could be used to describe this sample of copper
asked by Brandon 
math
how do you solve this equation? .00000000075 = r^4
asked by dakota 
finance
the patel family recently purchased a home taking out a mortage of $235,000 at 8% for 25 years excluding taxes and insurance what is the monthlt piti payment for their loan
asked by lyh 
math
Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 6 bikes in 12 hours. Working together how many hours will it take them to make 12 bikes? Please explain showing steps so I can learn it. I don't just need the answer.
asked by Kelly 
physics
rank higest to lowest air drag? 1)a 5lb lead block teraveling at 95% terminal speed. 2a 5lb styrofoam block at terminal speed? 3)a10lb styrofoam block traveling faster than terminal speed? 4)a 10lb styrofoam block at terminal speed? put in orderfrom least
asked by taylur 
physics
which of the following determine terminal speed of an object? 1)color 2)weight 3)air density 4)objects density 5)shape/aerodynamics 6)relative speed between air and object 7)surface area encountered by air. label all that apply?
asked by taylur 
Programming II
Create a test program that defines and uses both the default and nondefault constructor of a class. Create a class of students in a college. Make sure you include name, phone number, student number, current course, current GPA, and current grade.
asked by Sean 
physics
which of the following is traveling faster than its terminal speed? 1)rain 2)snow 3)a shooting star(metor) 4)a rock that has fallen after breaking off a shear cliff face 5)a penny,18s after it has dropped from rest from a tower. 6)a skydiver going ~120mph
asked by taylur 
algebra
2012 with a power of 2012
asked by charlie 
physics
which of the followingfactors dircetly affect the amount of air drag on an object? 1)mass 2)weight 3)air density 4)color 5)object density 6)shape/aerodynamics 7)relative speed between the object and air *8)surface area encountered by air?
asked by taylur 
Chemistry
How many atoms of nitrogen are in a molecule of Al(No3)3
asked by Frank 
Math
How do I set this up and how to solve it? Russ bought 3 medium and 2 large submarine sandwiches for $29.95. Stacy bought 4 medium and 1 large submarine sandwiches for $28.45. What is the price for each medium and each large submarine sandwich?
asked by Jane 
Math
A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x. What is the area of the yellow part of the tabletop? Write your answer in factored form.
asked by Jane 
Math
Please explain to me how to solve: A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.
asked by Jane 
physics
A 0.25 kg cube of iron is heated and its temperature rises from 23.0 C to 45.0 C. How much heat entered the cube in Joules and in Calories?
asked by joe 
English
I urgently need you to check these sentences on the Holocaust. Thank you. 1) 27 January was chosen as the date for Holocaust Memorial Day because it was on this date in 1945 that the largest Nazi killing(?) camp AuschwitzBirkenau was liberated. 2) On this
asked by Henry2 
physics
A 0.75 kg mass of copper changes temperature from 145.0 C to 46.0 C. How much heat was exchanged in Joules? Did the heat flow into the copper or out of the copper?
asked by mario 
physics
Heat totaling 2700.0 J leaves a glass of water at 75.0 C to bring it to room temperature (20.0 C). What is the mass of the water in g (ignore the glass)?
asked by mariah 
physics
Find the constant acceleration of a particle whose velocity changes by 3.06 m/s every 0.093 s.
asked by Anonymous 
durham college
the pont du gard near Nimes,france, is a roman aqueduct.an observer in a hot air balloon some distance away from the aqueduct determines that the angle of depression to each end is 54 degrees and 71 degrees,respectively.the horizontal distance between the
asked by Anonymous 
Microeconomics
When average total cost is declining then: a) marginal cost must be less than average cost b) marginal cost must be greater than average cost c) average toal cost must be greater than average fixed cost d) average variable cost must be declining. My answer
asked by Nicci 
geometry
how do i figure out the length of one side of a triangle if I know one side is 40 meters, and the angle on one side is 90 degrees and the other side is 42 degrees?
asked by brandon 
Chemistry
Which of the following is more concentrated? (A)0.5%kCl in 1Lwater (B)0.5ppm kCl in 1L water (C)0.5ppb kCl in 1L water (D)ALL are the same
asked by Chemo 
Physics
Relative to the ground, a car has a velocity of 14.8 m/s, directed due north. Relative to this car, a truck has a velocity of 24.0 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?
asked by Erin 
qchs
name two congruent angles that measure a 15 degree angl
asked by Anonymous 
English
You are perfectly right. I wanted to add these sentences, too. I really need your revision. 1) We must remember past atrocities but at the same time we must do something against them. It is for this reason that our school has decided to embark on a
asked by Henry2 
English
I left out these sentences. Thank you very much for your cooperation. 1) We would eventually like to build on not only the sharing of information between schools but on building an eventual student exchange programme between the schools. 2) This project is
asked by Henry2 
Math
The number of library books in a school increased by 20% after it bought new books in may. The number increased by another 20% after a bookstore donated 300 books in June. Find the number of books in the library before it bought new books in May.
asked by Jenny 
Huck Fin
"Two or three days and nights went by; I reckon I might say they swum by, they slide along so quiet and smooth and lovely. Here is the way we put in the time. It was a monstrous big river down there—sometimes a mile and a half wide; we run nights, and
asked by Jordan 
Math
25% of Lings savings is the same amount as 20% of Neil's savings. Find the ratio of Lings's savings to Neil's savings.
asked by Calixte 
Math
As many as three instructors are hired for a martial arts class each week. 4:1 studenttoinstructor ratio is considered ideal. Find the maximum number of students at each of these classes.
asked by Angela 
algebra
r/3+7=4?
asked by Brenda 
math
what would be the numerator of a fraction that is equivalent to 5/8 and has a denominator of 48?
asked by diana 
Biology/Chemistry
Consider that the human brain weighs about 1 kg and contains 10^11 cells. Assuming that each cell is entirely filled with water, and knowing that 1 cm^3 of water weighs 1 g, calculate the volume of a brain cell (in picoliters).
asked by Becca 
physics
a 2.0kg object is pulled horizontally by a force of 6.3N along the floor where the coefficient of kinetic friction is o.24. what is the object acceleration
asked by liz 
math
Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 12 bikes in 6 hours. Working together how many hours will it take them to make 12 bikes? Please explain showing steps so I can learn it. I don't just need the answer.
asked by Kelly 
Computer science
As a member of the Information Security team at a small college, you have been made the project manager to install an access control system (ACS) in a dormitory. The ACS will automatically unlock the dormitory doors via an electronic proximity reader and
asked by kara 
physics
A storage tank of negligible mass and 30 m high is filled with gasoline
asked by teresa 
Intergrated physics and chemistry
A 52.0kilogram skateboarder does a trick on a halfpipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the halfpipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?
asked by Micah 
Physics
Cx = 13.2 m/s, Cy = 10.4 m/s Direction in ° counterclockwise from the positive xaxis & Bx = +100.0 m, By = 106.0 m Direction in ° counterclockwise from the positive xaxis Also Dx = +3.2 m/s2, Dy = +7.6 cm/s2 Find magnitude m/s^2 & Direction in °
asked by Anonymous 
physics
Given that the tank is shaped like a right circular cylinder with a height of 30 m and with a base radius of 10m. The tank is attached to a steel cable of negligible mass and immersed in water. Calculate the tension (force) in the cable before and after it
asked by teresa 
geometry
The diagonals of rhombus FGHJ intersect at point C. If side GH is equal to x + 9 and side JH is equal to 5x – 2, find x.
asked by dboe 
Physics
Vector Barrowbold has magnitude 9.4 and direction 14° below the +xaxis. Vector Carrowbold has xcomponent Cx = 1.6 and ycomponent Cy = 7.7. Compute direction of Carrowbold & direction of Carrowbold + Barrowbold. Also direction of Carrowbold −
asked by Anonymous 
geometry
If FGHI is a rectangle and angle G is equal to 2x + 5, find x.
asked by dboe 
Physics
Margaret walks to the store using the following path: 0.435 miles west, 0.280 miles north, 0.300 miles east. What is her total displacement? That is, what is the length and direction of the vector that points from her house directly to the store? Find
asked by Anonymous 
geometry
1)YWXZ is a parallelogram with diagonals that intersect at point S. If WS = 10 and SZ = 2x – 6, find x.
asked by dboe 
math
How could you use multiplication to find 7+7+7?
asked by Anonymous 
central highschool
ken's cartoons for the school newspaper, but they wouldn't be good
asked by kim 
math
After working 4 hours frank made 21 machine parts. it's the same rate how many parts can he make in 7 hours
asked by Anonymous 
science
true or false,all mixtures are also solutions.
asked by Gabby ( 5 grade) 
science
when wood burns, the ashes have different chemical properties from the wood.true or false?
asked by Gabby ( 5 grade) 
Physics
A tin can is filled with water to a depth of 50 cm. A hole 16 cm above the bottom of the can produces a stream of water that is directed at an angle of 35degrees above the horizontal. Find the range of this stream of water. Find the maximum height of this
asked by Dave 
physics
A horizontal pipe carries oil whose coefficient of viscosity is 0.00010 ns/ m^{2}}. The diameter of the pipe is 5.5 cm, and its length is 60 m. What pressure difference is required between the ends of this pipe if the oil is to flow with an average speed
asked by Dave 
science
true or false,when water changes state, it looks and feels different, but it is still water.
asked by Gabby ( 5 grade) 
physics
In a historical movie, two knights on horseback start from rest 93 m apart and ride directly toward each other to do battle. Sir George's accleration has a magnitude of 0.22 m/s2, while Sir Alfred's has a magnitude of 0.34 m/s2. How far from Sir George's
asked by Mi26 
English
Thank you very much! I still haven't found anything on biodiversity in water. I need to find a website which explains the possible scientific objectives of this type of topic. Remember that the research will be carried out by 17yearold Italian students
asked by Henry2 
math
U1 = 4 What would be the first five terms of this sequence?
asked by 12yearoldpoet 
math
Explain how multiplication can help you find 7+7+7.
asked by sandra 
english
i need to write carecter sketch esay nedd help due 1/27/12 friday need help ASAP
asked by raj 
math
calculate the mass (in SI units) of a 150ib human being? m= Calculate the weight ( in English units) of a 200kg rhino m=
asked by bree 
Social Studies
How many years were there between the Lousiana Purchase and its exploration?
asked by Andrew 
math
WRITE THE FOLLOWING AS AN ALGEABRAIC EXPRESSION: FOUR, MULTIPLIED BY THE QUOTIENT OF A NUMBER AND NINE
asked by marisela 
chem
A solution initially contains 0.350 mol/L of A and 0.750 mol/L of B. A reaction occurs according to the equation 2 A(aq)+B(aq) 3 C(aq)+D(s) At equilibrium, [C] is found to be 0.100 mol/L. What is the value of Keq?
asked by ami 
English
I left out these sentences. Could you please check them? Thank you. 1) We are delighted to welcome today representatives from the French and the German school with whom we will embark (work?) on our Comenius project. 2) We have searched with difficulty to
asked by Henry2 
physics
Suppose a car is traveling at 17.0 m/s, and the driver sees a traffic light turn red. After 0.570 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as measured
asked by Mi26 
geometry
The measures of all angles in a regular octagon are (4x + 12)°. Find the value of x. Show equations and all work that leads to your answer
asked by FlowerChild 
physics
A metal rod of length 90cm has a disc of radius 24cm fixed rigidly at its centre,and the assembly is pivoted from its centre. Two forces each of magnitude 30N,are applied normal to the rod at each end so as to produce a turning effect.A rope is attached to
asked by Shanti 
math
1/4(9y3)+ 1/8(6y+9)
asked by marisela 
math
in 1991 the life expectancy of males was 65.4 in 1998 it was 68.8 let e represent life expectancy in year t and let t represent number of years since 1991
asked by jessica 
algebra
after solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?
asked by debby 
Chemistry
What is the full balanced equation?? Hg2(NO3)2(aq) + HBr(aq) → ?
asked by Shea 
Physics
The rock reaches a maximum height of 20.4 m above the top of the cliff before falling to the base of the cliff, landing 5.56 s after it was thrown. How high is the cliff?
asked by Fletcher 
Temperature(Math)
40+ 6+ 10=
asked by Andrew 
Physics
A cyclist starts at the top of a straight slope with an initial velocity of 2.82 m/s. Five seconds later, she is at the bottom of the incline, having traveled 45.8 m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be
asked by Fletcher 
physics
A hotair balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?
asked by Dave 
calc
h(t)=16t2+13t+1 find the height of the object at the time when the speed is zero.
asked by Anonymous 
Math
A spinner is divdided into 10 equal sectors and numbered 1 through 10. Find the probability as a fraction, a decimal and a percent for P(composite numbers.
asked by Micheal 
calc
Use the Midpoint Rule to approximate the integral The integral from 2 to 7 of (–1x–6x^2)dx
asked by niki 
physics
A hotair balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?
asked by Dave 
English
I urgently need you to check the agenda again: Agenda of the Comenius project 1) 27 January 2012 Greeting of the principal of "... high school" (to the German and French schools) in the teachers' library. 9 pm 12pm Visit of the school (and its
asked by Henry2 
Chemistry
What is the correct net equation for: LiOH(aq) + HClO(aq) → LiClO(aq) + H2O(l)?
asked by Shea 
Business Fiance
On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No.138 for $720. A $3200 deposit made on October 30 was in
asked by Terry 
Temperature(Math)
At 5 o'clock in the morning, the temperature at the top of the race course was 13o. By 10:00 A.M., it was +12o. How much had the temperature risen? Answer: 25o The temperature rose from 12o to +23o by noon. How much did the temperature change? Answer:
asked by Andrew 
English
A girl tells her mother she is volunteering at an animal shelter because it makes her feel good, but the truth is that she has been offered extra credit in one of her classes to do so. Her motivation is 1.)a lie 2.)external 3.)idiomatic 4.)idiomatic
asked by Lexi 
pre algebra
What is 7  8? I don't know how to solve this... please help!
asked by gabby 
english
For English II I'm supposed to write a persuasive essay on a speech such as the "I Have A Dream Speech" or similar. I don't particularly care for King's speech. What are some other speeches I could use?
asked by Sarah 
math
estimate the sum first then add simplify 2 5/6+9 3/8
asked by cupcake 
ELA
They gave us a paper where we have to correct the mistakes. My twin cousins I have identical twin cousins, Joe and John. They look exactly alike except that Joe has a tiny birthmark under his chin. Unless you look very closely,youd miss it. Both have
asked by Andrew 
poetry
i need to write a aabb poem but about a celebrity and it has to rhyme please help give some ideas thank you.
asked by help please !!!!!!!!!!!!!!!!!!!! 
math
a 2 digit number, divisable by 6, the 10s unit is 1/2 of the digit unit
asked by Cait 
math
what is the Evaluate expression for 30/d
asked by shion 
Math
The temperature rose from 12o to +23o by noon. How much did the temperature change? Answer: 11o I don't get how it's wrong
asked by Andrew 
biol
How did tree productivity change over time in each of the forest stands, and how was productivity altered by N additions? Consider possible reasons to explain the pattern that you see in the data.
asked by ami 
math
what is the Evaluate expression for 30/d
asked by shion 
AP World History
What reasons might there be for the timing, rapidity, and direction of Muslim territorial expansion? Ughhh, I searched the chapter in the textbook, the chapter outline on the packet and google and I'm getting so stressed out, someone please help me?
asked by Brianna 
business communication
ethical or un ethical Telling an associate and close friend that she shouls pay more attention to her work responsibilities, or management will fire her
asked by livonbrushy 
calculus
Find Mx, My, and (x, y) for the laminas of uniform density Ï bounded by the graphs of the equations. (Use rho for Ï as necessary.) y =1/5 y = 0 x = 4
asked by Rox 
Social Studies
How many years were there between the Lousiana Purchase and its exploration? Is it 104 years? 16991803?
asked by Andrew 
physics
In the javelin throw at a trackandfield event, the javelin is launched at a speed of 35.0 m/s at an angle of 33.7 ° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes.
asked by Erin 
Chemistry
What is the Heat Change in kilojoules when 61.5 g of steam is cooled from 111 degrees C to 100 degrees C?
asked by Phil 
Law
What factors does a judge have to consider when sentencing?
asked by rebecca 
Spanish
Could someone please check the answers I have & also help me with a few? Thanks! 1. Nosotros ______ al Departamento Chocó para las ocho. habremos llegado. 2. ¿Vosotras ______ cual mesero van a ocupar? habréis decidido 3. Sofía y Carlos ______ a Juan
asked by Amy 
physics
a closed system is observed to have 22 objects in it.initially the total energy of the system is 8598J.after 9.3hours have passed,how much total energy will the syatem contain?
asked by taylur 
physics
A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ρ = 0.180 kg/m3). It is then released from rest on the bottom of a pool of water that is 4.00 m deep. (a) Neglecting frictional effects, show that the shell rises
asked by teresa 
Biology
Which of the following organs would not be visible if you cut the body in a midsagittal section? Explain? a. Brain b. stomach c. heart d. kidneys
asked by Jerome 
physics
a lacrosse player slings the ball at an angle of 30 degrees above the horizontal with a speed of 20m/s. How far away should a teammate position herself to catch the ball?
asked by Anonymous 
math
rounding fractions to 0, 0.5, or 1. where would 0.599 lay? Can you round fractions down?
asked by lexi 
Science/English/Math
I was selected to the Math Academy at my school. I have it every wednesday after school. They are going to prepare me for the NYS Math Exam!!! :) I got a 80 on my Science Quarterly Exam!!!! :) (i didn't know some of my friends and other people were saying
asked by Laruen 
physics
the object is traveling in a circle,which one of the statements are true. choose all that apply? 1)the object has a net force 2)object accelerting 3)object at constant velocity 4)object is speeding up 5) object is slowing down
asked by taylur 
physics
A shotputter launches a 7.5 kg shot with a speed of 12 m/s at an angle of 37 degrees above horizontal. If, upon release, the shot was 2.0 m above the ground, determine the horizontal range.
asked by Anonymous 
Social Studies
How did the effort of Daniel Boone and the Louisiana Purchase encourage people to move westward? Daniel created a trail, which came to be called Wilderness Road. Soon thousands of people were going West. In 1803 the Lousiana Purchase was finished it was in
asked by Andrew 
Math
Solve for x in terms of y: y = (x^3/4)(x^2/3)(x/2)+3cosx
asked by John 
Science 7R  Homework Check
1. List 4 reasons biologists use scientific names instead of common names in their communications. Answer 1. Scientific names help scientists aviod errors in communication. 2. Organisms with similar evolutionary histories are classified together, 3. The
asked by Laruen 
Algebra 1 Honors
A diver is working 10 feet below the surface of the water. The gap between the water and the deck of his support barge is 1/8 of the total legnth of the air hose , and 3/4 of the total legnth remains on the reel. What is the maximum working depth without a
asked by Sally 
reading
In the Year of the Boar and Jackie Robinson what is your reaction to Senora Rodriquez?
asked by Dakota 
physics
a ball is projected at an angle with an initial velocity of 8m/s and an initial vertical velocity of 29.4m/s. Show trajectory diagram. Determine: a) displacement b)height at peak c)final speed
asked by Anonymous 
chemistry
how many significant figures in 200600
asked by alpna 
Law
Why are search warrants necessary?
asked by rebecca 
chemistry
4.0 g of sodium bicarbonate 84 g/mol) decomposes to form carbon dioxide, water, and sodium carbonate (106 g/mol). What is the theoretical yield in grams for sodium carbonate?
asked by Danae 
Chemistry
Calculate the heat released from 61.5 g of steam at 111 degrees C is converted to water at 39 degrees C. Assume the specific heat of water is 4.184 J/g*C, the specific heat of steam is 1.99 J/g*C and the enthalpy.H.vap= 40.79 KJ/mol of water
asked by Phil 
physical science
by what means can earth scientists predict discharge of a stream afeter a rainstorm?
asked by kimberlie 
social studies
A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when
asked by Anonymous 
Physics
A 1.00 kg block is attached to a spring with spring constant 14 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 31 cm/s. What is the amplitude of the subsequent oscillations?What is
asked by Taylor 
business communication
Ethical choices Knowing that I have many friends in the company my boss approaces me as asked me to start reporting any behavior problems and violated company policies to her what issues should i dicuss with her before i respond to her request
asked by livonbrushy 
Law
What factors could a defence consider for their arguments when persecuting the accused to get a lesser charge? is this information applicable to the question?: Guilty Plea may = Lesser Sentence If an offender admits responsibility early on, this is a
asked by rebecca 
Math
15 2/3 = x + 12 5/6 thanks
asked by Mickaela 
physics
If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should
asked by Brandon 
chemistry
Mass of sample 0.0581 g Mass of BaSO4 0.0860 g What is the mass of sulfate?
asked by Lucas 
Math
Justine measures the milk in two different cartons. One carton contains 1 liter and 665 milliliters of whole milk, and the other carton contains 1 liter and 183 milliliters of chocolate milk. How much more whole milk is there than chocolate milk?
asked by Jake 
Math
Reasoning What is the greatest number you can make using these digits? 572. ..... 257 572 725 752
asked by mary 
Math Challenge
Please help if can with the following problem, I have submitted the answers to the other problems like this one and were told they were incorrect. I was excited and greatful for receiving both answers because I have no clue how to work the problem. 1st
asked by Please,Please Help 
physics
what is the mass of a car that weighs 60 000 Newtons on the moon?
asked by JiMin 
Law
What factors could a defence consider for their arguments when persecuting the accused to get a lesser charge?
asked by rebecca 
english
I have a four page paper I have written for a scholarship. It is still in its rough draft. Would anyone be willing to proof read it?
asked by martha 
Business Finance
Sullivan's Handbags mark up their bags at 45% of the selling price. Pat Sullivan saw a bag at a trade show that she would sell to her customers for $85. What is the most she could pay for the bag and still retain the 45% markup of the selling price?
asked by Renee 
algebra 2
Find the largest integer k such that the polynomial x2 + 12x + k can be factored into the product of two linear polynomials, each of which has integral coefficients
asked by lynda 
Math
Explain how to do this with steps please. 1. Simplify cos(xy)+cos(x+y)/cosx Formula: cosxcosy= cos(x+y)+cos(xy)/2 cos(xy)+cos(x+y)/cosx =cosxcosy/2cosx
asked by Jake 
Chemistry 2
A student prepares phosphorous acid by reacting solid phosphorous triodide with water PI3+H2O>H3PO3+HI The student needs to obtain 0.250L of phosphorous acid. (d=1.651g/mL). The procedure calls for a 45.0% excess of water and a yield of 75.0%. How much
asked by krloz 
math
Mrs. Lennon buys 5 airplane tickets for her family. They each have one ticket. How many members are there in Mrs. Lannon's Family? My answer is 5
asked by Meil 
3 grade english
choose a verb from the list to replace each underlined word or words. change each verb to the correct tence if necessary. write the sentence. view, leap, enjoy they gave this sentence and they gave this word and they say change each verb. they give this
asked by dw 
math
13/6=
asked by Isabella 
physics
If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should
asked by Brandon 
Chemistry
given what you know about periodicity , predict whether lithium sulphate is more or less soluble in water than sodium sulphate
asked by Maame 
Business Fianance
Jeff Sellers bought 200 shares of Radio Shack stock at $22.35. Eight months later, he sold the stock at $31.76. Assuming a 2% commission charge, what is the bottom line for Jeff?
asked by Renee 
Chemistry
I did the work, but I need help checking it... A compound contains 83.24% by mass carbon. Calculate the molar mass of the compound if it contains 5 moles of carbon per mole of compound. This was my process: I took 100g of compound and found that there are
asked by Kyle 
World Civilization
what was the fighting in russia and se europe known as?
asked by kayla 
GeOmEtRy!!!
What is the xintercept of the linear function 6x10y= 15?
asked by VERONICA 
U.S History
explain the debate in McCulloch v. Maryland and the final decision in the case. why was the decision significant?
asked by Andrew 
geometry
An interior decorator is buying a fringe for the edge of a rug in the shape of a regular octagon. The side length of the rug measures 1/2 inch on a diagram with a scale 1 inch to 4 feet. How many feet of fringe will be needed for the entire edge of the
asked by Kaity 
Differential Equations
A rabbit starts at the origin and runs up the right branch of the parabola y=x^2 with speed a. At the same time a dog, running with speed b, starts at the point (c,0) and pursues the rabbit. Write a differential equation for the path of the dog
asked by Samantha 
math
can you help math question units rates find unit rate for each situation read 50 pages in 1 hr 25 min i got : 50 divide by ttl 85 min and got 0.588 = .59 hike 5 mile in 2hr 10 min i got: 130 min ttl divide 5mile is got 26 mile per min are these right?
asked by marko 
Math
Look at the following division sentence: 6 divided by 0 = : Explain what rule you would use to complete it.
asked by Khys 
social studies
How is the physical geography of northern Europe connected to the economies of northern Europe?
asked by Mona 
social studies
If you had to move to a Northern European country, how would you decide which country you would move to?
asked by Mona 
Science 7R  Homework HELP!
why can common names cause confusion? PLEASE HELP ME!!! I REALLY NEED HELP WITH THIS QUESTION!
asked by Laruen 
math
0.629 divided by 8.5 equals
asked by Anonymous 
Physics
A cyclist starts at the top of a straight slope with an initial velocity of 3.02 m/s. Five seconds later, she is at the bottom of the incline, having traveled 49.6 m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be
asked by Aaron 
English
I left out these few sentences. Thank you 1) The harvest begins around midOctober; the grapes are collected by hand and laid into boxes. 2) The must ferments 1520 days in stainless steel vats between 25 and 28°C The elevage in Slavonian oak casks
asked by Henry2 
chemistry
Aluminum metal generates H2 gas when dropped into 6.00 M HCl. Calculate the mass of H2 that will form from the complete reaction of 0.365 g Al with 8.40 mL of 6.00 M HCl.
asked by annie 
U.S History
explain the debate in McCulloch v. Maryland and the final decision in the case. why was the decision significant? plz answer i rly need help
asked by Andrew 
math unit rate question
Yolanda and Yoko ran in 100 yd dash. When Yolanda crossed the finish line, Yoko was 10 yrd behind her. The girls then repeated the race, with Yolanda starting 10 yrd behind the starting line. If each girl ran at the same rate as before, who won the race?
asked by marko 
Calculus 2
U subtitution for Arc Tan(x)/ x^2 +1 dx
asked by Michelle 
Finite MAth
Assume that the set S has 7 elements. How many subsets of S have at most 3 elements
asked by Bryan 
Math
An alien rocketship is travleing at a speed of 0.024 miles per minute. At this speed, how many inches will it travel in 1 second
asked by Cassidy 
physics
A metal rod of length 90cm has a disc of radius 24cm fixed rigidly at its centre,and the assembly is pivoted from its centre. Two forces each of magnitude 30N,are applied normal to the rod at each end so as to produce a turning effect.A rope is attached to
asked by Shanti 
English
The speaker in “I, Too, Sing America” survives adversity because he feels what? 1.)faith that he will one day be affirmed by white America. 2.)he has uncovered the hypocrisy around him. 3.)he is better than the people who are oppressing him. 4.)hope
asked by Lexi 
Physics
A football player carrying the ball runs straight ahead at the line of scrimmage and directly into a wall of defensive linemen. The ball carrier has an initial speed of 8.48 m/s and is stopped in a time interval of 0.186 s. Find the magnitude and direction
asked by Aaron 
Accounting
Assets = Liabilities + Equity How can you tell which company have the strongest financial position? Is buy the highest in assets, highest in liabilities, or highest in equity? I am confused.
asked by Ana 
Math problems
on friday natalie ran 1/2 mile. if she ran further on saturday, which fraction could represent the distance she ran on saturday? 2/5 mi, 3/6 mi, 3/8 mi, 4/6 mi
asked by Steven Hernandez 
physics
Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons
asked by jason 
physics
A cat that has a mass of 6 kg climbs to the top of a tree that is 20 m high. How much potential energy does the cat have at the top of the tree?
asked by Jay 
Physics
In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.71 x 105 N/C during the first 5.49 cm of the tube's length; then they move at essentially constant velocity another 47.9 cm before hitting the
asked by jason 
PreAlgebra
Montel spends $0.75 every time he plays his favorite video game. Montel has $10. write and solve an inequality that shows how many times Montel can play the video game.
asked by Me PLZ HELP!!!! TNX 
question
hello,i'm just need to asking something if i was take ACT text since 2009 and 2011 i pass the test with 15 point but i need to graduate since 2004 did you think i am need the 18 poins.
asked by Lilie 
English
Why don’t the narrator and the other man want to hold Edward for ransom? Is their motivation internal or external? in “I, Too, Sing America”
asked by Lexi 
social studies
cam yall name me 12 pros n cons fo social studies
asked by perry holmes 
Science 7R  Homework Check (Q3)
What's the function of a dichotomous key? My Answer: Dichotomous Key use by scientists are arranged in steps with two descriptive statements at each step. Is my answer to this question is correct??? BTW: I got this answer from my textbook in that section
asked by Laruen 
PreAlgebra
write an inequality that can be solved using the Division Property of Inequality, where the symbol is NOT reversed.
asked by Me PLZ HELP!!!! TNX 
soc.
The outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which
asked by john 
calculus
Let f(x)=(x^2)+x+14. What is the value of f(x) for which the tangent line to the graph of y=f(x) is parallel to the xaxis?
asked by tom 
Math
√175
asked by Cassidy 
math
3rd grade create an algorithm that has a difference of 20
asked by Ali 
Math
Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2.28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?
asked by Maya 
Math
Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2/28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?
asked by Maya 
math
Katie is 3/5 of the way to Brianna's house. Larry is 7/10 of the way to Brianna's house. How much closer to Brianna's house is larry
asked by Maya 
Finite MAth
Assume that you have 6 different types of vegetables and 9 different types of fruit. A vegetable salad consists of a mixture of any 3 types of vegetables, and a fruit salad consists of a mixture of 3 kinds of fruit. (1) In how many different ways can you
asked by Bryan 
Finite MAth
Assume that the committee consists of 5 Republicans and 7 Democrats. A subcommittee consisting of 6 people is to be selected. (1) How many such subcommittees are possible if each subcommittee must contain exactly 3 Republicans and 3 Democrats? (1) How many
asked by Bryan 
finite MAth
Assume that the student has a cup with 14 writing implements: 7 pencils, 5 ball point pens, and 2 felttip pens. (1) In how many ways can the student select 8 writing implements? (2) In how many ways can the selection be made if no more than one ball point
asked by Bryan 
finite MAth
dent who wants to buy 3 CDs, but assume that there are 4 CDs featuring the piano, 6 CDs featuring the trumpet, and 7 CDs featuring the saxophone. (1) In how many different ways can the 3 CD's be selected? (2) In how many ways can the selection be made if
asked by Bryan 
mortgage rates
what would the monthly payment be on a $115,000 home with a 4.4 percent annual interest?
asked by Cheryl 
math
the volume of a prism is 48 cubic centimeters. the area of the base of the prism is 8 square centimeters. what is the height of the prism? draw a picture
asked by claude 
Physics
Sally travels by car from one city to another. She drives for 40.2 min at 80.0 km/h, 12.0 min at 105 km/h, and 45.0 min at 40.0 km/h. She spends 13.7 min eating lunch and buying gas. (a) Determine the total distance traveled in km. (b) Determine the
asked by Paige 
Math
Damon, how did you get your answer?
asked by Maya 
Math
Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12
asked by Maya 
social studies
what made constantine suppurt christianity?
asked by cameron 
Chemistry
What is the balanced equation for the reaction between sodium tetraborate and sulfuric acid?
asked by Greg Drake 
math
at the pet store there are three pets in each cage. If there are between 14 and 25 dogs how many cages could have dogs in them?
asked by joy 
Math
Explain how to do this with steps please. 1. Simplify cos(xy)+cos(x+y)/cosx I did some of these so far, don't know if it is correct. Formula: cosxcosy= cos(x+y)+cos(xy)/2 cos(xy)+cos(x+y)/cosx =cosxcosy/2cosx
asked by Jake 
physics
Calculate the force of gravity on a 10 kg mass if it were 6.4x10^6 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)
asked by ginger 
trig
If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0
asked by Anonymous 
business communication
revise sentence on a 10 grade level. It is imperative that consumers be unrestrained in determining their preferences.
asked by tamika 
Physics
is it right that ideal gas only obey the boyles law under high temp and low pressure?
asked by Kong 
trig
Find the exact value. Without using a calculator a) cos (17pi/6) b) sec (3pi/2)
asked by Anonymous 
trig
Are 22pi/5 and 100 degrees coterminal? explain.
asked by Anonymous 
accounting
E419 On December 31, the adjusted trial balance of Oslo Employment Agency shows the following selected data. Accounts Receivable $24,000 Commission Revenue $92,000 Interest Expense 7,800 Interest Payable 1,500 Analysis shows that adjusting entries were
asked by bill 
Math
Subtract: 7 gal 2 qt 1 pt – 5 gal 3 qt ½ pt I'm stuck plz help.
asked by George 
trig
The second hand on a clock is 8 inches long. If the second hand travels a distance of 10pi inches, what is the positive radian measure of the angle that the second hand travels through?
asked by Anonymous 
Physics
What is the impact speed when a car moving at 114.0 km/h bumps into the rear of another car traveling in the same direction at 104.5 km/h?
asked by Paige 
physics
an object of mass 1kg falls a distance 5m on a horizontal surface and bounce to a vertical height of 2m.calculate the change in momentum
asked by faith 
Physics
Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic energy only
asked by Kong 
chemistry
what is molar concentration of a solution obtained by dissolving 560cm of hydrogen chloride gas at s.t.p in 92.5cm of water
asked by faith 
Chemistry
Consider the following reaction. 4 Al(s) + 3 O2(g) → 2 Al2O3(s) It takes 1.00 L pure oxygen gas at STP to react completely with a certain sample of aluminum. What is the mass of aluminum reacted?
asked by Zoey 
Statistics
. A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for
asked by Sharon 
math
For 3 collections, the mode was 126 and the range is 26. What are the 2 possibilities for the number of items in each collection?
asked by karen 
Math
Ms. Sue. Are any of them correct
asked by Maya 
trig
If the point (3,0) lies on the terminal side of angle theta in standard position find: a) csc theta b) cot theta
asked by Anonymous 
physics
what is velocity
asked by faith 
trig
If point (3, 8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA
asked by Anonymous 
STATISTICS
the percentage of adults who have at some point in their life been told that they have hypertension is 23.53%. If 8 adults are randomly selected, find the probability that between 2 and 4 of then inclusive have been told that they have hypertension
asked by amber 
trig
If point G(a,b) lies on the terminal side of angle theta in standard position, what is the value of sin(theta) if point G also lies on the unit circle?
asked by Anonymous 
chemistry
50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of
asked by Annabelle 
Math
Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12
asked by Maya 
retireement
• DQ#1 At what age do you hope to retire? How do you plan to incorporate your retirement in your personal financial plan?
asked by Anonymous 
trig
Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) 190 degrees
asked by Anonymous 
Health
Who all is held responsible for the completeness of medical records and what are some reasons that cause them to be incomplete?
asked by Jackie 
physics
a force acts on a body 0.5sec changing its momentum from 16.0kg to 21.0kg.calculate the magnitude of the force
asked by faith 
calculus
Find f'(a). f(t) = t^4 − 7t
asked by Mary 
Physics
When a load of 0.89 106 N is placed on a battleship, the ship sinks only 1.9 cm in the water. Estimate the crosssectional area of the ship at water level.
asked by Anonymous 
Physics
The
asked by Lisa 
Precalculus
Determine the solutions to the equation 2sinx − cos2x = sin2x for 0 ≤ x ≤ 2π . How do I start this question?
asked by Melissa 
math
at a local community college, it costs 150 to enroll in a morning section of an algebra course. Supopose that the varible n stands for the number of students who enroll. then 150n stands for the total amount of money collected for this course. how much is
asked by allie 
Physics!! Help!!!!!
The time dependence of voltage across a discharging capacitor is given by the exponential decay. The voltage on the capacitor at time t= 0 sec is 24 volt. If a 220 +/ 22uF capacitor and 1 Mega ohm (5% tolerance) resistor are used in the RC circuit, what
asked by Mary 
trig
Find the length of the circular arc intercepted by a central angle of 20 degrees in a circle or radius 5cm
asked by Anonymous 
Physics
An electric current of 50 +/ 1 mA flows through an electric bulb filament that has a resistance of 10 +/ 2 ohm. Estimate the power dissipated by the filament and the associated error in the power.
asked by Robert 
anatomy
I have tried to search this and I can't find anything on this. Can you please help?? Name the structures that can be seen in the elastic cartilage?
asked by matt 
physics
A 0.36 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 21 m/s. What impulse was delivered to the ball by the player?
asked by lindsey 
Math Alg 2
A colony of bacteria is growing exponentially according to the function below, where T is in hours. How many bacteria are there after 7 hours? B(T)= 4*e^(0.8)T
asked by Karen 
MATH
COMPARINGUNIT RATES
asked by C 
geometry
The hypotenuse of a right triangle is 8cm and one leg is 6cm. Find the length of the other leg. How did my teacher end up with 2 x square root of 7?
asked by michelle 
chemistry
what volume of dry hydrogen chloride gas at s.t.p will dissolve in 250cm^3 of water to produce a 0.05M solution of water
asked by faith 
mATH
COMPARING only unit rates EXAMPLES PLEASE
asked by Ch 
Math
For one pony, thecritical force was 1.16 times its body weight. It experienced a force of 0.75 times its body weight at a speed of 2 meters per second, and a force of 0.93 times its body weight at 3 meters per second. At what speed did the pony switch from
asked by Aryan 
MATH
How can I find the vertex, axis of symmetry? I know to find x and y intercepts i use the quadratic formula. I am given the parabola y=x^2+6x+5 I do not want the answer.. Just please explain to me how to solve for it. what method do I use???
asked by tc 
chem
For the equilibrium reaction: CO(g)+H2O(g)CO2(g)+H2(g) the Keq value at 690°C is 10.0. A mixture of 0.300 mol of CO, 0.300 mol of H2O, 0.500 mol of CO2 and 0.500 mol of H2 is placed in a 1.0 L flask. a)Write the Keq expression for this reaction and use
asked by ami 
trig
Determine if the value of each trig function is positive, negative, zero, or undefined. a) tan 310 degrees b) cos 7pi/6 c) sin 245 degrees d) sec( 7/2)
asked by Anonymous 
geomerty
how many 2inch squares fit inside a rectangle 6 inches by 8 inches
asked by dv 
prealgebra
what is $200 plus 8% commission?
asked by jesus 
math
how do u solve a unit rate problem using proportions to solve
asked by Ch 
Precalculus
Solve the equation (x+3)(x3) = 9. What are the solutions to the equation if you replace x first with sinx and then with cosx, where 0≤x≤2pi?
asked by Melissa 
Math Alg 2
The number of computers sold by BCC depends on the dollar amount, x, that they spend on advertising. How many computers will they sell by spending $80,000 on advertising? Round to the nearest whole number and do not include units in your answer. N(x) = 100
asked by CAMILA 
chemistry
Balance this equation by following equations of the REDOX Method. Cu + HNO3 >Cu(NO3)2 + NO + H2O
asked by David Scott 
bio101
2. Find a media piece—article, video, presentation, song, or other—that recognizes the fundamental concepts of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental
asked by kelly