Questions Asked on
November 1, 2011

Physics
A 1200 kg car pushes a 2100 kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500 N . What is the magnitude of the force the car applies to the
asked by Help Physics college 
Physics!
The following four forces act on 4.00 kg object: F1 = 300 N east F2 = 700 N north F3 = 500 N west F4 = 600 N south What is the acceleration of the object?
asked by Christine 
calculus
A rectangular beam is cut from a cylindrical log of radius 25 cm. The strength of a beam of width w and height h is proportional to wh2. (See Figure 4.70.) Find the width and height of the beam of maximum strength.
asked by Maria 
physics
A diver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. He then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. The net external torque acting on the diver is zero. What is
asked by jason 
Calculus
A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 100 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery
asked by Anonymous 
Chemistry
1) What is the atomic # for selenium? 34 2) Write the full electron configuration for selenium following the (n+l) rule? I am not sure what is meant by n+l 3) write the electron configuration, grouping electrons by their "n" values. [Ar]3d10 4s2 4p4 Are
asked by Hannah 
Physics
Block 1 of mass m1 slides from rest along a frictionless ramp from height h and then collides with stationary block 2, which has mass m2 = 3m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction is μk and comes to
asked by Isabel 
physics
A 50.0kg block is being pulled up a 13 degree slope by a force of 250 N which is parallel to the slope. The coefficient of kinetic friction between the block and the slope is 0.200. What is the acceleration of the block?
asked by Kathy 
Math
Calculate the number of grams of dextrose in 250mL of D5W. I know that the answer is 12.5g, but I do not understand the work. Please help.
asked by Elie 
Physics
A 1000kg car is driving toward the north along a straight road at a speed of 20.0 m/s. The driver applies the brakes and the car comes to a rest in a distance of 140 m. What is the constant force applied to the car to bring it to rest?
asked by Christine 
Physics
A rock is projected from the edge of the top of a building with an initial velocity of 19.6 m/s at an angle of 31 degrees above the horizontal. The rock strikes the ground a horizontal distance of 77 m from the base of the building. The acceleration of
asked by Julia 
physics
A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is 3.5 x 10 exponent 5 kg, its speed is 27.0 m/s and the net braking force is 4.30 x 10 exponent 5 N, (A) what id its speed 7.50 s later? (b) how far has it
asked by anna 
statistics
A national park is famous for its beautiful desert landscape and its many natural rock formations. The following table is based on information gathered by a park ranger of all rock formations of at least 3 feet. The height of the rock formation is rounded
asked by Brittany Buford 
consumer math
Luis Giron works at the Pancake Palace from 3:00 p.m. until 12:15 a.m. 5 nights a week. If he takes a 30minute break each evening, how many hours per week does he work? 46.25 hrs 44.75 hrs. 43.75 hrs.
asked by tre 
Math
suppose u and v are functions of x that are differentiable at x=2 and that u(2) =3, u'(2) = 4, v(2) = 1, and v'(2) find values of derivatives at x = 2 (d/dx)(uv) = ? I would like to know how to set this up because I'm only used to getting problems that
asked by Amy 
physics
Water at 50 degrees C can be obtained by mixing together which one or more of the following combinations? Which of the others would have final temperatures higher than 50 degrees C and which lower than 50 degrees C? What will be the final temperatures for
asked by fifii 
Math Pre calculus
A community birdwatching society makes and sells simple bird feeders to raise money for its conservation activities. The materials for each feeder cost $5, and the society sells an average of 20 per week at a price of $9 each. The society has been
asked by Darren 
calculus
The hypotenuse of a right triangle has one end at the origin and one end on the curve y = (x^4)(e^7x), with x > 0. One of the other two sides is on the xaxis, the other side is parallel to the yaxis. Find the maximum area of such a triangle.
asked by Emily 
Chemistry
How would I get the Ice of the titration of 40.00ml of 0.100M H2NNH2(aq) having a Kb of 3.0x10^6 by 0.100M HClO4(aq)? Trying to plot a pH curve. I know the combination of acid base is strong acid weak base
asked by Anonymous 
chemistry
Two students Mac & Cheese, were arguing about covalent and ionic bonds. Mac says that covalent bonds could be compared to a good marriage. Do you think one has a better comparison than the other or are both of them equally right ?
asked by Brionna 
physics
You jog at 6.2 mi/h for 5.0 mi, then you jump into a car and drive for another 5.0 mi. With what average speed must you drive if your average speed for the entire 10.0 miles is to be 10.6 mi/h? I don't get why the answer isn't 15.
asked by John 
Physics Energy & Acceleration
A light spring with force constant 3.45 N/m is compressed by 7.92 cm as it is held between a 0.241 kg block on the left and a 0.482 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them
asked by mR. Ba3BOOS 
calculus
Find the smallest positive value of x which satisfies 1.400cos(1.000x) Give answer in four decimal places for accuracy.
asked by Anonymous 
physics
a magnetic crane left a mass 1500 through a vertical height of 40m.calculate the work done in operating the crane
asked by sasi 
geometry
One of the angles in a right triangle has a measure of 73 degrees. What is the measure of the other acute angle?
asked by Anonymous 
Chem
With which of the following will the weak acid HCHO2 react? If a reaction occurs, write the balanced molecular equation. If no reaction occurs write the left half of the reaction and use "NR". Do not include physical states in your answers. KOH: NH3:
asked by Colt 
physics
a weather balloon carries instruments that measure temperature,pressure and humidity as it rises through the atmosphere.Suppose such a balloon has a volume of 1.2 m^3 at sea level where the pressure is 1 atm and the temperature is 20 degree Celsius.When
asked by jennaq 
Physics
Two skaters, one with mass 68 kg and the other with mass 47 kg, stand on an ice rink holding a pole of length 8.8 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 47 kg
asked by Elaina 
statistics
6. You read in a book about bridge that the probability that each of the four players is dealt exactly one ace is about 0.11. This means that A. in every 100 bridge deals, each player has one ace exactly 11 times. B. in one million bridge deals, the number
asked by ron 
College algebra
system of linear equation The sum of 3 numbers is 14 the largest is 4 times the smallest the sum of the smallest and twice the largest is 18 what are the 3 numbers? show work? A. how many unknowns you have? how many equations need to be solve for that
asked by YANETH 
Chemistry
In the cchemistry lab we conducted an experiment called atomic spectroscopy. We had to find the color, energy, wavelength, and 1/lamda for Hydrogen, neon, and mercury. For hydrogen: red 1.90ev 650nm 1.54e^3 red 2.02ev 610nm 1.64e^3 green 2.30ev 545nm
asked by Hannah 
Algebra 2
An employee drove to work on Monday at 45 mi/h and arrived one minute early. The employee drove to work on Tuesday, leaving home at the same time driving 40 mi/h and arriving one minute late. a. How far does the employee live from work? b. At what speed
asked by Anonymous 
physics
Two skaters, one with mass 62 kg and the other with mass 45 kg, stand on an ice rink holding a pole of length 10 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 45 kg
asked by Jason 
Trig
Find all real numbers that satisfy the equation. 2 cos x + 1 = 0
asked by Anonymous 
physics
A force of 9000 N is used to stop a 1500kg car traveling at 20 m/s. What braking distance is needed to bring the car to a halt?
asked by Bobbie 
Math
Ms. Hernandez has 17 tomato plants that she wants to plant in rows. She will put 1 plant in some rows and 2 plants in the others. How many different ways can she plant the tomato plants? Make a table to solve.
asked by Micaela 
Physics
The average distance separating earth and moon is 384000 km. What is the net gravitational force exerted by earth and moon on a 3.00 * 10^4 kg spaceship located halfway between them.
asked by Dee 
Chemistry
How many milliliters of 0.201 M Ba(OH)2 solution are needed to completely neutralize 12.8 mL of 0.369 M HNO3 solution? The reaction is Ba(OH)2(aq) + 2HNO3(aq) → Ba(NO3)2(aq) + 2H2O(l)
asked by Mary 
math  algebra
f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output
asked by alexis 
social studies geography
geography terms 7th grade need help in defintions of ; phyical map, political map thematic map legend title can you help me with this with definition or website
asked by marko 
math
After flying at an altitude of 600 meters,a hot air balloon starts to descend when its ground distance from the landing pad is 10 kilomeers.What is the angle of depression for this part of the flight?
asked by justin 
english
hi everyone someone can say me if my dialogue it's good and say me also about the fault:)thnaks This scene takes place at Brian's parents home. Banks informs his wife about the call he has just had with their son "Sandra you can come and sit down next to
asked by yuna 
math
Please help me with these 1. 5/c = 1/3 2. k/8 = 2/5 3. 6/z = 3/5 Thank you
asked by JOSH 
College Physics
A simple Atwood’s machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 6.7 m/s at the end of 6.1 s. At that time, the kinetic energy of the system is 85 J and each mass has moved a distance of 20.435
asked by Loreal 
Physis Home work
Two 0.85Mtrs long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at
asked by Don 
mathematical finance
The yearly cash flows of an investment are(1000,1200,800,900,800) Is this a worthwhile investment for someone who can both borrow and save money at the yearly interest rate of 6%?
asked by clarkson 
algebra
Mr. Hundley has a big collection of silver dollars and 50cent pieces. He promised to give one fourth of his collection to the first teacher who can figure out the total values of his coins. These are the only clues: There are 132 more silver dollars than
asked by Linda 
Ashford
Beth gives Megan $2 allowance a week. Then she takes Megan shopping and allows her to select what she wants to buy. If the item desired costs more than $2, Megan's mother suggests she save her money until she has enough saved to pay for the desired item.
asked by D 
Physics
Question # 1 Marks = 12 A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the
asked by M. Yousaf Khan 
math
If points S, O,and N are collinear, how many lines do they determine?
asked by Leo 
Calculus
Answers to any of these questions would be of great help! (: 1 a) At noon, ship A is 150km west of ship B. Ship A is sailing south at 50km/h and ship B is sailing north at 30km/h. How fast is the distance between the ships changing at 4:00pm? b) A
asked by Alison 
Physics
a student attaches a mass to the end of a 0.80 m string. The system will be whirled in a horizontal circular path at 31.5 m/s. The maximum tension the string can withstand without breaking is 250 N. What is the maximum mass the student can use?
asked by Dee 
Bepper
One end of a long 26 foot ladder is on the floor and the other end rests on a verical wall the bottom end of the ladder is pulled away from the wall qt a rate of 4 feet per second. how fast is the angle formed by the ladder and the floor changing when the
asked by Sarah 
physics
Consider a roller coaster as it travels near the bottom of its track as sketched in the figure below. At this point, the normal force on the roller coaster is three times its weight. If the speed of the roller coaster is 27 m/s, what is the radius of
asked by sandy 
calculus
Given f(x)=sin(x)2cos(x) on the interval [0,2pi]. a) Determine where the function is increasing and decreasing. b) Determine where the function is concave up and concave down. ________________________________________ I know: f′(x)=cos(x)+2sin(x)
asked by Shawn 
geometry
anthony is building a picnic table for his patio. he cut one of the legs at an angle of 40 degrees. at what angle should he cut the other end to ensure that the top of the table is parallel to the ground?
asked by sam 
math
how do you find the slant asymtote of f(x) = (x^3)/(x^21) ?
asked by Haley 
math check please
1) True/false: For any real number x, ln e^x = x. I think that is true. 2)true/false: (2 ln x)/ ln 10 = ln x^2  ln 10 for all positive x. I think this is true too.
asked by Stephanie 
physics
One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest. (a) What is the spring constant for the spring? (b) If the mass is then
asked by Austin 
physicsquestion 7
A baseball is thrown at an angle of 26 degrees relative to the ground at a speed of 22.1 m/s. The ball is caught 39.2327 m from the thrower. The acceleration due to gravity is 9.81 m/s2 . How high is the tallest spot in the ball’s path? Answer in units
asked by kelly 
Math
You are bending a wire to make a coat hanger. The length of the wire is 88 centimeters, and 20 centimeters are needed to make a hook hanger. The triangular portion of the hanger is an isosceles triangle. The length of one leg of this triangle is 3/5 the
asked by Steven 
math
A company has plans to increase its sales at the rate of 6% per year. If the sales of the company in 2001 were $23 million, how much sales can you expect the company to make in the year 2003?
asked by cindy 
Math
Solve the system using any algebraic method. 2x  2y + z = 3 5y  z = 31 x + 3y + 2z = 21 ______________________ The answer I got for this is ( 26, 6,67) but I know its wrong and I don't know why. Help please >< my work is at the bottom I used
asked by Linda 
statistics
Determine the 90% confidence interval for a sample, taken from a normally distributed population, that has a mean of 685, a sample standard deviation of 74, and a sample size of 29
asked by Tierra 
physics
A rock is projected from the edge of the top of a building with an initial velocity of 19.6 m/s at an angle of 31 degrees above the horizontal. The rock strikes the ground a horizontal distance of 77 m from the base of the building. The acceleration of
asked by Julia 
chemistry
write the corresponding subshell leters for the combinations given. Fill in the possible number of electrons for these subshells. 1) n=1 2) l value=0 3) l letter? 4) "nl"Designation 5) Maxium # of electrons the table shows n values of 1, 2,2,3,3,4 with l
asked by Hannah 
calculus
Find equations for two lines through the origin that are tangent to the ellipse 7x2−168x+y2+62=0 please show me the steps :)
asked by mehak 
math
The difference between two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?
asked by Anonymous 
Physical Science
Based on a data table of their preliminary observations, which is shown below, complete the final column entitled: “Number of Valence Electrons” and then answer the questions that follow. Element Name Symbol Group Number Alkalininium A 1 Earthium E 2
asked by Jill 
northview
A player bounces a 0.46 kg soccer ball off her head, changing the velocity of the ball from i = (8.7 m/s) + (3.7 m/s) to f = (5.1 m/s) + (4.2 m/s). The ball is in contact with the player's head for 6.7 ms.
asked by bala 
science
What term almost always describe top consumers. A)herbivores B)omnivore C)carnivores D)decomposer
asked by miki 
science virus
i have a question do you think the influenza virus is a active or hidden virus and explain, im really not sure. i said active cause once you get it you feel the sympton right away. can you help me with this?
asked by marko 
Algebra
Can a radical be negative when the index is even?
asked by Kelly 
university mathematics
find the area enclosed between the following curves: Y= lnx and y= 2x+3 and the ordinate x=3
asked by anonymous 
Calculus
Calculate the indefinite integral of ((x^3)+1)/(x^5)
asked by Shayna 
university maths
solve the following differential equation: (x^2+xy)dy=(xyy^2)dx
asked by anonymous 
sentences
what sentence can i write using the word encircling
asked by jennifer white 
physics
a man of 70kg carries a mass of 10kg to the top of a building 100m high.calculate work done by the man.take g=10m/s
asked by Anonymous 
english
what is the significance of Athena turning into birds throughout the Odyssey?
asked by Englishstudent 
physics
During an eclipse, the Sun, Earth, and Moon are arranged in a line as shown in the figure below. There are two types of eclipse: (a) a lunar eclipse, when Earth is between the Sun and the Moon, and (b) a solar eclipse, when the Moon is between the Sun and
asked by sanjeev 
Chemistry
Calculate the amount of heat in kcal it would take to convert 1.45 mol of ice at 0 degrees C to steam at 100 degrees C.
asked by Jess 
math
CAN YOU HELP ME ? WHAT ARE THE TWO HAND ON THE CLOCK CALLED. THE LONG ONE AND THE SHORT ONE. THANK YOU ALEXIS LAANG
asked by alexis 
math
how many gallons would be left after 10 seconds?
asked by sam 
science
What does a maple tree do for a community? A. it creates energy B. It creates food C. It looks nice D. it stores water My answer is B.
asked by miki 
Spanish
How would I say "Fishing fascinates me"
asked by Jodi 
chemistry
a solution of lead(2)nitrate is added to hydrochloric acid. A precipitate is formed in a double displacement reaction Question:how to balance this equation problem
asked by james 
Please check my english hw
The ALL CAP words are used incorrectly. Choose the best word to replace them both: 1. Success is not measured ON a person's wealth or social status, but ON how much a person contributes to the welfare of others. a. in b. upon c. about d. by The ALL CAP
asked by ME 
math
Billy is a carpenter who earns $15 per hour. He works 8 hours per day, Monday through Friday. How much does Billy earn in one week?
asked by Anonymous 
math
Mack’s hourly wage is raised from $12.10 per hour to $13.35 per hour. He works 40 hours per week. How much more does he earn per week at this new rate?
asked by Anonymous 
Help
help solve 7^(11/13)
asked by Katie AA 
Algebra
Is this radical expression true or false? 28 minus 4th root of 2 equals 24th root of 2
asked by Kelly 
ALGEBRA MATH
Avery paid $168 for a cell phone. What was the original price of the phone if he got it at a 30% discount?
asked by MONA 
physics
You are an astronaut (m = 80 kg) and travel to a planet that is the same mass and size as Earth, but it has a rotational period of only 11 h. What is your apparent weight at the equator of this planet?
asked by tamara 
math
James invested $4,000 at 5% interest per year; how long will it take him to earn $200 in simple interest?
asked by iris 
History
The french philosopher Voltaire was attaked to confucianism because he? A.believed it promoted universal access to education. B.Regarded It as substitute for organized religion. C.Found it full of material he could ridicule in his satirical writings.
asked by anonymous 
Science (urgent)
I have 2 biology questions I really need help with, they are due tommorow and I don't know if I'm right. 1)As an energy carrier, ATP differs from NADPH in that: a)ATP carries less energy than NADPH. b)ATP transfers energy through redox reactions whereas
asked by Jake 
chemistry
What is the maximum amount of ethanol (in grams) that can be produced when 1.0 kg of ethylene (C2H4) and 0.014 kg of steam are placed into the reaction vessel? Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at
asked by Amanda 
Hospitality & Tourism
1. Create a rankordered list of best practices concerning total quality management (TQM) that would be applicable to all hotels. Please provide specific examples. 2. From the perspective of hotel management, determine which aspect of managing employees
asked by Brenda 
Chemistry
How many milliliters of 0.277 M AgNO3 solution are needed to react completely with 47.1 mL of 0.278 M NaCl solution? How many grams of AgCl will be formed? The reaction is NaCl(aq) + AgNO3(aq) → AgCl(s) + NaNO3(aq)
asked by Lynn 
early childhood education
a childs ability to jump for distance is an example of a)agility b)flexibility c)explosive power d)reaction time i put b am i correct a child who has to struggle to climb into a chair is confronting an.......... hazard a)biological b)physical c)ergonomic
asked by abby 
Chemistry
Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) C2H5OH(l) What is the maximum amount of ethanol (in grams) that can be produced when 1.0 kg of ethylene (C2H4) and 0.014 kg of
asked by Jack 
Physics
Block 1, with mass m1 and speed 4.5 m/s, slides along an x axis on a frictionless floor and then undergoes a onedimensional elastic collision with stationary block 2, with mass m2 = 0.41m1. The two blocks then slide into a region where the coefficient of
asked by Ashley 
Chemistry
Write equations for the dissociation of the following in water. Include physical states for all species. CaCl2 and (NH4)2SO4
asked by Lach 
Science: Chem
How many milliliters of 0.10 M HCl must be added to 52.0 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M?
asked by Lach 
Calcplease help!
What is the second derivative of (x^3)/(x^21)? And how would I accurately graph both the derivative and the second derivative of this function?
asked by Haley 
math
I need to find the power for the base Android exponents 7to2
asked by rashawn 
Help
Simplify 7^(11)/7^(13)
asked by Katie AA 
math
X+6=18 how to solve problem
asked by rashawn 
geometry honor
given a figure, writ a coordinate proof to show triangle FGH is congruent to FDC.
asked by sherri 
business precal
Find the annual rate, r that produces an effective annual yield of 6.3% when compounded continuosly.
asked by nan 
Physics
A 3.2 kg block with a speed of 11 m/s collides with a 11 kg block that has a speed of 3.3 m/s in the same direction. After the collision, the 3.2 kg block is observed to be traveling in the original direction with a speed of 6.4 m/s. (a) What is the
asked by Ashley 
math
4×7=19 how to show all work
asked by rashawn 
History
What was a key discovery during the early sixteenth century that made regular trade possible across the Atlantic ocean? A.Square sails B.Longitude C.The gulf stream D.Monsoonal winds I think the answer is D. Monsoonal winds.
asked by anonymous 
English
What does this means? What if what I think is great, really is great. But not as great as something greater?!"
asked by Pyria 
Physical Sciene
A cannon is fired horizontally from a top of a 15m platform. What is the cannon balls horizontal speed when it hits the ground 250 m downrange?
asked by Diana 
science
how do you tell till and outwash plains apart?
asked by Anonymous 
math
2+4×3×=42 show all work
asked by rashawn 
Social STUDIES
Which state has the highest average annual precipitation?
asked by Mya 
geometry
In an isosceles triangle, if a base angle has a measure of 43 degrees, then the vertex angle must have a measure of 80 degrees as well.
asked by Anonymous 
Math
Explain why one column in a hundredths grid is equal to one column in a tenths grid?
asked by sandra 
geometry
how do i state the theorem or postulate that is related to the measure of the angle in each pair, then find the unknown measure in m
asked by Rylee Mills 
geometry honor
given a figure, writ a coordinate proof to show triangle FGH is congruent to FDC.
asked by sherri 
math
5(5+4×)=5 show all work
asked by rashawn 
Calculus
Answers to any of these questions would be of great help! (: 1 a) At noon, ship A is 150km west of ship B. Ship A is sailing south at 50km/h and ship B is sailing north at 30km/h. How fast is the distance between the ships changing at 4:00pm? b) A
asked by Alison 
algebra
5x_=230
asked by Emma 
Chemistry
Calculate the average mass (in amu) of 1 methane molecule (to .01 amu)
asked by Caitlin 
Chemistry
Calculate the mass ( in grams) of one mole of methane molecules (to .01 g)
asked by Matt 
physics
A 1000kg rocket is moving forward at 10m/s in space. A 10,000N force is applied to the rocket for one second from behind. How fast is the rocket now traveling? a. 0m/s b. 10m/s c. 15m/s d. 20m/s
asked by Claudia 
Elevation
What type of map would you use to identify landforms and elevation?
asked by Clark 
Chemistry
Use a grammatically correct English sentence to describe how the mass in amu of one molecule of a compound is related to the mass in grams of one mole of that compound.
asked by Natalie 
math
The circumference of a circle is 75.36meters. Estimate the radius [c#=2Πr]
asked by rashawn 
math
Solve the proportions, 4 : 5::8 :b
asked by rashawn 
SCIENCE
Is water natural resources,renewable resources,or reusable resources?
asked by Duncan 
math
In Jamison's backpack, he only keeps nickels and quarters. He has 30 coins in all. How many of each coin does he have? Show work.
asked by Cindy 
math
Solving the proportions b : 16::6 : 4
asked by rashawn 
biology
snail in the low oxygen environment what aspects of the new environment will be salient to your species and how will aspects act as selective forces
asked by mas 
Chemistry(Please check)
1)For an atom of carbon how many valence electrons are "s" electrons? 2 2) How many are "p" electrons? 4 3)How many (total) electrons in carbon are paired? 2 4) How many are unpaired? 1 Are these correct.
asked by Hannah 
Physics Energy and Work Done
A 390N child is in a swing that is attached to a pair of ropes 1.9 m long. Find the gravitational potential energy (in JOULES) of the child–Earth system relative to the child's lowest position at the following times. A) when the ropes are horizontal B)
asked by Mofied 
math
find the radius and coordinates of the center of the circle: 2x^2+2y^2+x+y=o
asked by choice 
Discrete Math
How many ways can you get a bunch of 4 books to give a friend if you have 30 books (15 novels, 10 history book and 5 math books)?
asked by Martin 
civics/american history 10th grade
How does the Constitution provide for the system of federalism in the American form of government?
asked by GABBY:) 
Algebra
(5y3)/3  (2y1)/2=1 note: the divide signs are the fraction bars. 5(2(x1)  (x+1))=9 .08n.09(n2)=5.08 2(3(x1)+3x) + 2(x35(x3)x)=10 please show me how you got the answers thanks
asked by Eliza 
math pre cal
What is the future, rounded to whole dollars, of $25,000 after 7 1/2 years, if money earns at an annual rate of 5.75% compounded continuosly?
asked by fred 
math
Can you please help explain this problem? Maurice says that a(square)+ b(square)=(a+b)(a+b). Is this always true, never true, or sometimes true? Explain.
asked by christy 
Optimization (Math)
The mayor of a village wants to build a library of which the windows have a shape of a rectangle on top of a square. The total perimeter of each window is of P meters and varies depending on each windows size. Find the dimensions of the windows in terms of
asked by Tommy 
SRA Math
The rectangular region shown has been divided into nine square regions, all different in size. The area of square 3 is 64 cm. The area of square 5 is 81cm. what is the area of the rectangle?
asked by Fatimah 
Math
Show 25 broken key is 5 show 2 ways
asked by Basimah 
GEOGRAPHY
According to the estimate in 2001 which country ranks first in population then second then third?
asked by Tanya 
Math
Write the fraction as a mixed number. 38/3 Is 12 2/3 the correct answer?
asked by Tonya 
physics
A 7.5 kg object moving at 7.3 m/s collides inelastically with a 4.0 kg object which is initially at rest. What percentage of the initial kinetic energy of the system is lost during the collision?
asked by Nae 
math
Explain why one column in a hundredths grid is equal to one column in a tenths grid?
asked by Christian 
Physics PLEASE HELP
A 50kg crate is pulled across the ice with a rope. A force of 100 N is applied at an angle of 38° with the horizontal. Neglecting friction, calculate the acceleration of the crate AND the upward force the ice exerts on the crate as it is pulled.
asked by Eddie 
algebra
My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match
asked by Linda 
English
I write a moral delima story could you please read it and give your idea about the below story In the 50s; before the black people use their rights. There was a man called Momo he was from America in an organization called the klu klux klan (kkk) it was a
asked by manal HELP ME 
Physis Home work
Two 0.85Mtrs long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at
asked by Don 
Math
Danny gave Rose $28 less than she already had. She now has $120. that means Rosario originally had how much????
asked by Mj 
physics
A 5.6kg bowling ball is accelerated from rest to a velocity of 17 m/s as the bowler covers 5.0 m of approach before releasing the ball. What force is exerted on the ball during this time?
asked by Eddie 
English
What are the three prophecies made by Theoclymenus in Homer's Odyssey?
asked by Englishstudent 
physics
A 130g ball moving at 0.35m/s in the xdirection is subject to a 0.25N force in the  ydirection for 1.0s. Find the magnitude of the ball's momentum change.
asked by Don 
writing sentences and paragraphs
need your Opinion please before submitting assignment Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to
asked by Ruth 
PREDICT
In 1955 each farm worker in the United States produced enough food to feed 20 people. By 1960 farming methods had improved, and one worker could supply 25 people. By 1965 that number became 40 people. In 1970 it was 45 people.In 1975 it increased to 60
asked by Bob 
Calculus
In this exercise, we estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the population of this area was 942,200, and the population was increasing at roughly 9100 people per year. The average annual income was
asked by Nyke 
medical
accreditation affect the practical activities of record management in hospitals
asked by laura 
math
for F(x) = /x2/ (absolute value) When you graph this problem, does it have a straight line or a "v" line?
asked by Jane 
geometry
Two angles
asked by Max R 
Spelling
What is a spelling triangle
asked by Kha 
algebra
what is rule for this function input 0,1,3,4 and range 4,3,1,0
asked by ann 
math
i am having trouble with two digit dividends. here is an example 34 divided 264
asked by julia 
English
Hi, I was wondering if you could help me.. I got this alliteration poem homework from my teacher, and it has to be five lines. I made four lines: Paige predicted that it was the precise time to take the test. Her heart pounded powerfully as she proceeds
asked by Annabeth 
Calculus
What is the second derivative of (x^3)/(x^21)?
asked by Haley 
Math word problem
jack was 21 years older than kat. Together their ages totaled 161 years. What were their ages?
asked by emily 
physics
A 2.5kg block slides down a 17.0° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom its velocity reaches 0.70 m/s. The length of the incline is 1.7 m. What is the acceleration of the block? What is the
asked by Eddie 
english
where do i put commas in this sentence?many children were absent on moanday and Friday
asked by sads 
English
How do you call a meeting of teachers headed by the school principal? Thank you. I need to include the correct word in the following sentence. 1) I really hope that the teachers' conference will approve/welcome/agree with/ the decision of a partnership
asked by Henry2 
Chemistry
Ammonia, at stp, 1.5L of N2 reacts with 4.5L of H2, if N2 and H2 are consumed, what volume of NH3 at stp will be produced?
asked by Michael 
Algebra
8x12=3x+38 what is X?
asked by Max R 
social studies
The economic success of the Mughals in India was dependent upon A. success of exporters. B. economic success of subjects under their rule. C. low levels of taxation. D. the success of external markets. I think it is B, but im not sure
asked by anonymous 
precalc
If the initial investment of 1000 doubles in value in 9.8 years find the rate for continous compounding. so the formula would be A=Pe^rt but where do the numbers go and how do u solve it? Thanks!
asked by cade 
math
What is the future, rounded to whole dollars, of $25,000 after 7 1/2 years, if money earns at an annual rate of 5.75% compounded continuosly?
asked by nan 
Math
Find lim θ→0+ A(θ)/B(θ)
asked by Isabel 
ecology
what is the single most important determination of plant distribution?
asked by chris 
English Scarlet Letter
Hester thought there was three changes that need to be made before young women were able to take there stand next to men as equals. What are the three chnges she was referring to? Relate this philosophy to today's society. Use specific examples. Which of
asked by Jake 
English
I agree with your correction but as I found the following sentence in an Italian book I just wanted to know if, in your opinion, an English mothertongue expert could have written it. She is such a onesided character, however, as (?) never to hesitate.
asked by Henry2 
Math C30
Solving Equations Containing Circular Functions : Solve 2cos sq x =1
asked by don 
Math
Find the missing number. 5/15 = ?/3 Is 1 the correct answer?
asked by Rebekah 
Writing Sentences And Paragraphs
Hello Sir/ Mam, I have assignments to be completed but really don't know where to start from i need help. I am doing Diploma in Medical Admin Assistant from Penn Foster. This are my Assignments: Assignment1 You’ve applied for a specific job in your
asked by niks 
physics.pls help
How much time can you save travelling diagonally instead of running 450meters south and then 650meters west. if your running speed is 5.0m/s. pls help
asked by ted 
economics
I need a quote for a positive and normative statement
asked by lisa 
human resources
which of the following terms describes the formal process to identify and document a workers contribution and workplace behavior a)performance appraisal b) performance factor c) performance incentive d) performnace limitation
asked by mike 
skills of a teachers aide
According to the SMCR model, problems in communication can arise when the speaker fails to do what?
asked by dianne 
chemistry
how do i calculate the [OH] and [Ca2+] using the equivalence point? Then I have to calculate the Ksp for calcium hydroxide.
asked by Kris 
math
Johns football game last for 50 minutes. What reduced fraction of an hour is that? Can someone please explain to me how to solve this question?
asked by Mindy 
physics
a jet plane flying at 550 m/s makes a curve. The radius of the circle in which the plane is flying is 9.0 X 10^3 m. What centripetal acceleration does the plane experience? Express this acceleration relative to g, the acceleration due to gravity.
asked by Dee 
math
A garden has vegetables planted in a by area. The vegetables are surrounded by a border of flowers. By what percent is the area for planting vegetables increased if the border of flowers is removed
asked by helo 
algebra
can you please help me with these 1. 5/c = 1/3 2. k/8 = 2/5 3. 6/z = 3/5
asked by JOSH 
social studies
unscramble ARTIOTINM
asked by dre 
Homework check english
1. Jordan was studying for his criminal justice exam, and his brother offered to help him study. He went over each of the questions with him. a. Jordan was studying for his criminal justice exam, and his brother offered to help him study; so he went over
asked by ME 
macroeconomics
What is the World Bank advising businesses in Singapore and Hong Kong to add businesses, how to get the businesses to grow, hire employees, etc.
asked by Dawn 
Calculus
f(x) = sin^2(x/2) defined on the interval [ 5.683185, 1.270796]. Remember that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . b.) A global minimum for this function occurs at . c.) A local maximum for this
asked by Anonymous 
MATH
system of linear equation The sum of 3 numbers is 14 the largest is 4 times the smallest the sum of the smallest and twice the largest is 18 what are the 3 numbers? show work? A. how many unknowns you have? how many equations need to be solve for that
asked by YANETH 
chemistry
Using a coffeecup calorimeter, it is found that when an ice cube with a mass of 24.6 g melts, 8.19 kJ of heat are absorbed. (a) Calculate the change in enthalpy per gram and per mole of water. (b) Write the thermochemical equation for this physical
asked by john 
art
whats 14.9% as a decimal?
asked by barbra 
math
find an equation of the tangent line to the curve at the given point: y=sqrt(1+x^3), (2,3)
asked by robert 
AlgebraPlease check
For the ellipse (x2)^2/49 + (y+1)^2/25=1 List center: (2,1) the foci: (sqrt 74) AND +(SQRT 74,0) Major axis: x=2 Minor axis: y= 1 Vertices: (7,0) (7,0) (0,5) (0,5) Is this correct?
asked by Allie 
algebra
0.1x + 0.6y >/ 2
asked by Anonymous 
health
what are the blood types, what blood type is the most common in most humans, and what do the positive and negative signs mean?
asked by andi 
VBA EXCEL
I was wondering I have 3 input boxes and with one of them I need the information put into this equation. What type of VBA CODE do I use to put this information in the equation is w=1/tp Where w is input frequency Tp is process time constant I know that I
asked by Angel 
Anatomy
Zeke and Drew are a couple of incoming freshmen hopefuls for the Ferrum basketball and football teams. They don't just want to have a shot at making the team; they feel they can be starters if they are well conditioned. Zeke is 6'7" and about 188 pds, and
asked by Holly 
Math
Find the first two zeros of the function y=sin(4x+20) (in degrees) for x > 0, and the value of y at x=9.
asked by Arielle 
physics
a 100Nforce was applied to pull a 20 kg box up on a rough inclined plane that makes ans angle of 30. if the applied force makes an angle of 20 with the inclined plane and if the coefficient of friction was 0.4 when the accleration of the box is 3m/s^2
asked by anthony 
science
What are some social, economic, aesthetics, and ethical issues involved in a current environmental controversy?
asked by len 
collge calculus
find an equation of the tangent line to the curve y= x(x)^(1/2) that is parallel to the line y=1+3x
asked by Anonymous 
English
Using California as a topic, number and write one example of each of the following: 1. A completely correct simple sentence (see Grammar Glossary if you need to) with an appositive in it. 2. A sentence with redundant language. Type the redundant language
asked by Karen 
physics
a 100Nforce was applied to pull a 20 kg box up on a rough inclined plane that makes ans angle of 30. if the applied force makes an angle of 20 with the inclined plane the find the coefficient of friction when the accleration of the box is 3m/s^2
asked by anthony 
chemistry
the relative humidity in a room is 65%. assuming ideal gas behavior. what mass of water vapor is in the air at 25 degrees celsius if the room measures 4m 4m 3m? the vapor pressure of liquid water is 23.8 torr at 25 degrees celsius
asked by miky 
calculus
The hypotenuse of a right triangle has one end at the origin and one end on the curve y = (x^4)(e^7x), with x > 0. One of the other two sides is on the xaxis, the other side is parallel to the yaxis. Find the maximum area of such a triangle.
asked by Emily 
Mathj C30
Solving Equations Containing Circular Functions : Solve 2cosx sinx + sinx = 0 when x is between 0 and 2pi
asked by don 
chemastrey
of exhow many grams of no2 can be produced by the reaction of excess o2 with 19.8 of no
asked by jacob 
statistics
A national park is famous for its beautiful desert landscape and its many natural rock formations. The following table is based on information gathered by a park ranger of all rock formations of at least 3 feet. The height of the rock formation is rounded
asked by Brittany Buford 
Steph
Buffers work by converting _____ to ____.
asked by Chemistry 
Organic Chem
How would I assign priority to 1,2dimethylcyclopropane?
asked by Jay 
Speech
Hi I am needing help on how to do a power point on a persuasive speech presentation. I'm going to talk about how important it is to further our education. Can someone please help. Thank you
asked by Anonymous 
algebra
A bycicle store costs 2,800 per month to operate the store pays an average of 45$ per bike the average selling price of each bycicle is 125 $ how many bycicles must the store sell each month to break even?
asked by Anonymous 
calculus
How long will it take an investment that pays 5% compunded annually to double in value?
asked by eliza 
calculus
find all points on the curve x^2y^2+xy=2 where the slope of the tangent line is 1 I know that you have to find the derivative when it equals 1 i got y'=(2x*y^2y)/(2x^2*y+x) (i don't know if it is correct or not) but i don't know how to go from here. any
asked by Fredrick E. 
nursing
Why is epidemiology important in the study of health and disease in communities
asked by maria 
calculus
find all points on the curve x^2y^2+xy=2 where the slope of the tangent line is 1 I know that you have to find the derivative when it equals 1 i got y'=(2x*y^2y)/(2x^2*y+x) (i don't know if it is correct or not) but i don't know how to go from here. any
asked by Fredrick E. 
algebra
In 600 minutes how many machines travel a distance of 103,700 mm at a speed of 300 mm/minute?
asked by Rebecca 
Food styles of catering
which of the following gadgets is best for making a softshell shape out of butter?
asked by Mindy 
geometry
given triangle ABC is congruent to triangle PQR, AB = 38 .QR = 28 and PQ = 5x+8 . find x value
asked by alejandra 
Computer Science (MATLAB)
I had a test in my computer science course in which I was asked if any while loop can be replaced with a for loop. I put true. I guess the answer was false. My professor said that if you had a while loop in which you asked the user to input a certain value
asked by Jhon 
Calculus (Derivatives)
What is the derivative of the this functon? g(x) = 500/x, x cannot equal 0. I know that in order to fnd the derivative I need to put the function into the equation for evaluating derivatives as limits. lim as h > 0 (f(x+h)  f(x))/h I did this, but I am
asked by Mishaka 
math
F(x) = /x2/ (absolute value) Please show me to to graph this equation.
asked by Jane 
math
Your industry currently employs 3,800,000 workers. If this labor force is growing expotentially at an annual rate of 2.3% how long will it be before the number of employees reaches 5,000,000?
asked by nan 
Anatomy
Zeke and Drew are a couple of incoming freshmen hopefuls for the Ferrum basketball and football teams. They don't just want to have a shot at making the team; they feel they can be starters if they are well conditioned. Zeke is 6'7" and about 188 pds, and
asked by Holly 
phsyics
A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of
asked by Austin 
algebra inequalities
can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > 3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n  5 > 3; 6 i say no 2g + 8 is geater than or equal to 3;1
asked by marko 
biology
how reliable are tests for drugs in sport?
asked by lissa 
hw check eng
1. Jordan was studying for his criminal justice exam, and his brother offered to help him study. He went over each of the questions with him. a. Jordan was studying for his criminal justice exam, and his brother offered to help him study; so he went over
asked by ME 
calculus
H(x)=2xCUBED+8XSQUARED+8X+5
asked by Anonymous 
biology
find a drug scandal within a sportig event and write some notes about it.
asked by lissa 
Math C30
using unit circle solve: 2cos sq x =1
asked by don 
English
I still have a few doubts on the use of infinitive and gerund. I hope you can check these sentences, too. 1)It took a lot of time for Jane to arrive.(is it wrong to say "It took Jane a lot of time to arrive?") 2) Why not go to the theatre, instead? (Is it
asked by Henry2 
Math
I am having trouble understanding how to reduce fractions to its lowest term... All I can understand is I have to find the lowest number that will divide into both numerator and denominator. How do I understand the solution on how to reduce fractions to
asked by Tonya 
None of my questions are being answered
I need serious help for the questions i put on here and no one is helping me? ive tried using different names, subjects and said please and thank you and no one has yet helped me. I'm not impressed by this. Thanks but no thanks for the help.
asked by Jake/cabe/eliza 
Math
The perimeter of a triangle is 50. What steps do I need to take to find the length of the sides?
asked by Will 
Math C30
Equations containing circular functions and unit circle... solve 2cosx sinx + sinx = 0
asked by don 
phsyics
A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of
asked by Austin 
algebra
On the day a child was born, a lump sum P was deposited in a trust fund paying 6.5% interest compounded continuously. Use the balance A of the fund on the child's 29th birthday to find P. (Round your answer to the nearest cent.) A = $5,000,000 P = $1
asked by leah 
physics
if the following sentance true or false, also can you please write the correct version of it if false. if you want a small volume of hot water, you should place the immersion heater near the bottom of the hot water tank.
asked by blaire 
Psych
Unlike psychodynamic approaches to personality, the learning approach emphasizes what? A) latent personality structures B) Selfactualization processes C) The Outer Person D) biological traits I thin the answer is COuter Person but just not sure of it.
asked by Tisha 
physics
A person is sitting with one leg outstretched, so that it makes an angle of = 39.9o with the horizontal. The weight of the leg below the knee is 34.7 N with the center of gravity located below the knee joint. The leg is being held in this position because
asked by Sami 
English
I left out the following two sentences I varied. Thank you very much! 1) Macbeth hears a supernatural voice telling him that in murdering Duncan he has deprived his life of sleep. 2) He compares sleep to an innocent murder victim, to someone who repairs
asked by Henry2 
phsyics
A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of
asked by Austin 
math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single,
asked by Kristen 
Financing the Mission of Healthcare
I need your analysis of two Medicare initiatives. First, Medicare keeps threatening to cut physician payments. Give me the history of this threat and what you think physicians will do in reaction. Second, is it true that Medicare will no longer pay for
asked by ShaTonya 
math
determine the value of N: N/20 * 100%=60% can someone explain
asked by Jazmin 
Computer Science (MATLAB)
I had a test in my computer science course in which I was asked if any while loop can be replaced with a for loop. I put true. I guess the answer was false. My professor said that if you had a while loop in which you asked the user to input a certain value
asked by Jhon 
Geography
Where do rivers begin or have their source?
asked by Jesse 
math
true or false the product of 6 and 48 is 12 less than 300 how do i figure this out
asked by makayla 
Please check my english hw
The ALL CAP words are used incorrectly. Choose the best word to replace them both: 1. Success is not measured ON a person's wealth or social status, but ON how much a person contributes to the welfare of others. a. in b. upon c. about d. by The ALL CAP
asked by ME 
Science
What are two changes in weather patterns caused by el nino that can cause disasters?
asked by Theresa 
physics
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both boats reach the edge of a 4.8 m waterfall. The spy's speed is 16 m/s and the officials; speed is
asked by Julia 
Literature4000
How would you describe the tone of this essay? What evidence supports your interpretation? i know its a serious, satiric tone .. but how can i provide examples?
asked by Mark J 
Physics
A solid disk rotates in the horizontal plane at an angular velocity of 0.036 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.17 kg · m2. From above, sand is dropped straight down onto this
asked by jason 
algebra
Use an associative law to find an expression equivalent to x+(y+49)
asked by Mswiz 
history
The state that Europeans came to eye like greedy creditors around a rich man's deathbed was the _______ Empire. A. Ottoman B. Russian C. Austrian D. Persian I'm not sure what the answer is.
asked by anonymous 
Math Challenge Check
I am playing a dice game with my friend Kyle. Each of us roles a standard sixside die obtaining a number at random from 1 to 6. What is the probability that my number is greater than Kyle’s number? Answer below was posted last night. Is the answer
asked by Please Help 
Chemistry I
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reaction: In
asked by Lindsey 
COLLEGE
My parents say I should be a doctor but I want to be what I want. They're forcing me to be one cause the rest of my family is. WHAT SHOULD I DO? D:
asked by Jake 
calculus
Each page of a book will contain 30 in squared of print, and each page must have 2 inch margins at top and bottom and 1 inch margin at each side. What is the minimum possible area of such a page.
asked by Barbara 
statistics
Determine the 90% confidence interval for a sample, taken from a normally distributed population, that has a mean of 685, a sample standard deviation of 74, and a sample size of 29
asked by Tierra 
Algebra 2
The point of no return for an airplane, flying over water from point A on land to point B on land, is that distance into the trip for which it takes just as much time to go on to B as it does to return to A. The distance from San Francisco to Honolulu is
asked by Anonymous 
statistics
what does a 78 percent mean in a home work
asked by victoria 
general inorganic biochemistry
you have set up the apparatus for this experiment and collected the following data: Atmospheric pressure 721.o torr temperature22.0c Gas constant 0.0821 L atm/mol K you then ran the experiment using 0.3234 g of alka seltzer and generated a volume of CO2
asked by kim 
physics
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.2 m waterfall. The spy’s speed is 15 m/s and the officials’
asked by kelly 
Ateneo
What did Augustin tell us about how we should make decisions
asked by Huyen 
English
This is my thesis so far for a compare and contrast essay on Se Habla Entitlement and Border on Our Backs...These two essays state the rights that the Mexicans have in the US and what issues could arise from them. I know it is not perfect. Can someone help
asked by Nicole 
Ateneo
The existentialist Kierkegaard wrote a book Either/Or. What is the connection of this with decisionmaking? What does he suggest?
asked by Huyen 
biology
please can you answer the following questions in as much dephth as possible. why do people use drugs? what are the effects (short & long) of use of hard drugs? the cannabis debate what is cannabis and why do people use it? what are the risks involved with
asked by blaire 
calculus
For what xvalues does y=e^x have the same slop as x+4y = 1 I am not sure what steps I am supposed to take to tackle this problem.
asked by Daniel 
Math
There are 28 pears on 4 trees. There are the same number of pears on each tree. How many pears on each tree? If Jomel picks 10 pears, how many pears will be left on the trees? My answers: 7 pears on each tree. 18 pears will be left on the trees. Is this
asked by Myra 
algebra
Write the equation for this situation: the value, v, in hundreds of dollars, of Bob’s stamp collection is 12 dollars more than 1/3 of the age, t (in years). Then graph the equation and use the graph to determine the value of Bob’s coin collection if it
asked by Sharday 
algebra
Given the linear equation y = 4x + 2, find the ycoordinates of the points (2, ), (1, ), and (3, ). Please show all of your work. Plot these points and graph the linear equation.
asked by Sharday 
physics
The drawing shows a hydraulic system used with disc brakes. The force vector F is applied perpendicularly to the brake pedal. The pedal rotates about the axis shown in the drawing and causes a force to be applied perpendicularly to the input piston (radius
asked by jessica 
biology
snail in the low oxygen environment what aspects of the new environment will be salient snail and how will aspects act as selective forces
asked by mas 
algebra
Find the x and yintercepts for the equation. Please show all of your work. Then graph the equation 2x + 3y = 15
asked by nicole 
algebra
Find the x and yintercepts for the equation. Please show all of your work. Then graph the equation 2x + 3y = 15
asked by nicole 
science
What does a maple tree do for a community.
asked by miki 
Physics
The main factor that determines the properties of an image produced by a converging lens is A) the shape of the object. B) the color of the object. C) the size of the object. D) the position of the object relative to the lens. E) the bending strength of
asked by Amari 
statistics
The time necessary to assemble a discount store display is normally distributed with μ = 5 minutes and σ = 30 seconds. A large number of potential employees are timed assembling a practice display. How much time (in minutes) should the personnel manager
asked by Sarah 
Math integration
Find the area bounded by x^(2/3) and x= y^2 in the first quadrant. (I've worked out the x intercepts to be 0 and 1 in the first quadrant, but how would I find the area?) thanks :)
asked by Candice 
Culture
What are some reasons why some people would belive that the Day of the dead celebration is wrong?
asked by Kayla 
Physics
While following the directions on a treasure map, a pirate walks 24.3 m north, then turns and walks 4.3 m east. What is the magnitude of the single straightline displacement that the pirate could have taken to reach the treasure? Answer in units of m
asked by Bay 
math's
how do you check a Pascal's triangle with a calculator.
asked by louise 
algebra
Find the slope of the line containing the given pair of points. If the line is undefined, state so. Please be sure to show all of your work. (1, 2) and (9, 12)
asked by nicole 
Ms.Sue August or Anonymous
All 3 of you I see usually answer a lot of questions. Can you help me with some of these? 1. Erosion is a slow process that causes change to Earth's surface. All of the following are sources of erosion except A.wind B.earthquakes C.glaciers D.ocean waves
asked by Allishia 
algebra
determine if (5/6, 1) is a solution to 6x5y= 10 show work
asked by nicole 
algebra3
An object is fired straight up from the top of a 200foot tower at a velocity of 80 feet per second. The height h(t) of the object t seconds after firing is given by h(t) = 16t2 + 80t + 200.
asked by danielle 
algebra
Given the linear equation y=3/5x4, find the ycoordinates of the points (5, ), (0, ), and (5, ). Please show all of your work. Plot those points and graph the linear equation.
asked by sharday 
Math
The perimeter of a triangle is 50. The length of the sides of a smaller, similar triangle are 5, 6, and 9. FInd the sides of the larger triangle. What steps would I take to solve this?
asked by MR. BILL 
English
Could you please check these sentences I varied from a summary I made two weeks ago. Thank you very much. 1) Lady Macbeth asks Macbeth to return the daggers he has mistakenly brought from the scene of the murder. Then, she urges him to wash the blood form
asked by Henry2 
English
I left out these two sentences. Thank you very much. 1) Every noise scares Macbeth. He fears that his guilty hands will pluck out his eyes. (What does this sentence mean? 2) He would like his eyes to be removed so that he won't have to see the blood and
asked by Henry2 
math
Can you please show me the steps to work this problem? 2(4+6)+4(23)=
asked by christy 
Math
Which rate gives the best price for scrapbook paper? a) 10 sheets = $1.89; b) 6 sheets = $0.99; c) 5 sheets = $0.79; d) 3 sheets = $0.59
asked by Mia 
Chemistry
how many moles of acid are present in 50 mL of acetic acid?
asked by Anonymous 
Chemistry
Please help i don't get the answer. How much energy, in kilojoules per mole, is released when an electron makes a transition from n=5 to n=2 in an hydrogen atom?
asked by Lorry 
science
In the United States, we are fortunate to have an abundant supply of food, and much of this is due to our agricultural technology. However, there are many concerns about our food source, including genetically modified crops, the use of more chemicals, and
asked by Lisa 
business law
Can anyone help me with this question. when you mediate with the clients what are the advantages and disadvantages of not having a lot of information. I thought since you a a neutral party the amount of information doesn't matter. Please help me.
asked by R.T. 
calculus
let f(t) = 2*pi*t + sin(2*pi*t) a) find value of t in open interval (0,2) for which the tangent line at (t, f(t)) is parallel to the line through (0,0( and (2, 4pi) b) suppose the given funtion describes the position of a particle on the xaxis for 0
asked by zoe 
Accounting
On June 1, Coble Company Ltd. borrows $64,000 from First Bank on a 6month, $64,000, 9% note. The note matures on December 1. (List multiple debit/credit entries from largest to smallest.) a) Prepare the entry on June 1. b) Prepare the adjusting entry on
asked by Kate 
math
Every four years the value of a Chevy Cabalier is reduced by half. Purchase price $15,375 After t years of ownership: Age of car: Value: 0 15,375 4 7,687.50 8 3,843.75 If P is price after t years, Which would be a good model for the values above? a) P(t) =
asked by Chevy 
math
Which is the correct symbol to make the resulting inequality true? 4 4/3 > 4 1/2 Or 4 4/3 < 4 1/2 What does this mean?
asked by Ruby 
algebra
Video game company hires gamers to test a new adventure game. The number of levels completed by an average gamer is given by L = 60/(3+17e^0.1t) where L is the number of levels completed after t hours of playing. a) How many levels is a gamer expected to
asked by Nabil 
math  algebra
f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output
asked by Alexis 
math  algebra
f(t) is an exponential function with f(0) = 200 and f(3) = 2000. a) Use the form f(t) = Pe^rt to find the equation of this exponential function. b) In the form f(x) = Pa^x, a is the growth factor. find the growth factor. c)What input value gives an output
asked by Alexis 
physics
Once a 15 kg crate is in motion on a horizontal ﬂoor, a horizontal force of 56 N keeps the crate moving with a constant velocity. The acceleration of gravity is 9.81 m/s 2. What is µk, the coeﬃcient of kinetic friction, between the crate and the
asked by Anonymous 
Health
3. Which of the following is NOT a physical change both boys and girls experience during adolescence? a. facial acne b. growth spurts c. rinse in sex hormones d. deepening of voice C or D.. 4. For teens to communicate effectively with their parents, they
asked by mysterychicken 
mathTonyaMath
Multiply; then reduce to lowest terms 5 1/2 • 3/4 Is the correct answer 4 1/8 ?
asked by Tonya 
physics
the two upper front teeth of a person exert a total force of 30 N on a piece of steak.IF THE BITING EDGE OF EACH TOOTH MEASures 10mm x 1 mm,find the pressure on the steak
asked by asembi 
math
determine the value of N: N/20 * 100%=60%
asked by matthew 
math's
how do you add together all the number's up to 100, Quickly though.
asked by louise 
Computer Networks
In 1000BASEX, a frame of 64 bytes is fi rst block coded with 8B/10B before transmitting. Suppose the propagation speed is 2 × 10 8 . What is the frame “length” in “meters”? (Suppose the cable is 500 m long.)
asked by Modou 
Predict
In 1955 each farm worker in the United States produced enough food to feed 20 people. By 1960 farming methods had improved, and one worker could supply 25 people. By 1965 that number became 40 people. In 1970 it was 45 people.In 1975 it increased to 60
asked by Bob 
Math
L=Ph for h
asked by Schuyler 
LiteratureSATIRE201
in modest proposal, Find sentences in which the speaker uses ethical appeals?
asked by Mark J 
algebra
the perimeter P of a square is four times the length of ones side s, or P=4s. Is (1455) a solution of this equation? If not, find a solution that uses one of the given values
asked by jacky 
investing
Why is there a gain or loss in a pension expense calculation? I am more confused about this every time I read about this topic. Can somebody explain this to me? I have researched and read and still do not understand why.
asked by Nick 
history
What was the main motivating factor for European maritime expansion in the sixteenth and early seventeenth centuries? A.to spread christian valves. B.To increase economic opportunity. C.To seek out new lands for increasing populations. D.To conquer othe
asked by anonymous 
HOMEWORk check english
1. Jordan was studying for his criminal justice exam, and his brother offered to help him study. He went over each of the questions with him. a. Jordan was studying for his criminal justice exam, and his brother offered to help him study; so he went over
asked by ME 
chemistry
When 1.50 g of calcium chloride is dissolved in 150.0 g of water, the temperature of the water rises from 20.50°C to 22.25°C. Assume that all the heat is absorbed by the solution. (a) Calculate the heat of solution per gram and per mole of CaCl2 that
asked by john 
math
the total cost of manufacturing 100 cameras per week is 700 $ and 120 cameras per week is 800 $ ,the the cost equation ,assuming it to be linear is
asked by anthy