Questions Asked on
February 9, 2011

math
how do you simplify cos(A+B)*cos B=sin(A+B)*sin B can you show me the steps? thank you very much!!!
asked by candybar 
Biology
*distinguish between motif and domain
asked by Anonymous 
Chemistry
Kc=1. The initial concentrations are A = 0M, B = 0M, C=10M. A+B > C calculate the reaction quotient. (c)/(a)(b) = 10/0 .. is the answer zero?
asked by Jenny 
chemistry
One isotope of a metallic element has mass number 59 and 31 neutrons in the nucleus. The cation derived from the isotope has 26 electrons. Write the symbol for this cation.
asked by Alex 
microbiology
When looking at various stains (i.e gram , acid fast), how do you differentiate between Micrococcus roseus and Lactococcus lactis? Thank you
asked by Bacteria 
science
a project is lauched upward at an angle of 75 from the horizontal and strikes the ground a certain distance away. For what other angle would it have the same range?
asked by Mykmoloko 
Algebra 1
Solve each system using elimination 3x+3y=27 x3y=11 thx
asked by Alex 
Math
Need help solving this problem. If there's an equation at the end, need help in how to solve that also. Compounded interest problem. Principal $825. Rate 4%. Compounded Annually. Time 10 years.
asked by J 
physical science
A projectile is launched upward at an angle of 75 from the horizontal and strikes the ground a certain distance away. For what other angle would it have the same range?
asked by Mykmoloko 
8th grade math
According to one survey, the number of consumers who planned to purchase a television for the purposes of viewing the Super Bowl rose from 1.4 million in 2005 to 4.5 million in 2011. Suppose that in 2005 the average purchase price for a television was
asked by Anonymous 
Chemistry
How do I calculate the wavelength of the emission line when electrons drop from the 4th to the 3rd energy level in the hydrogen atom?
asked by Lis 
Chemistry
If a reaction quotient is undefined, and the Kc = 1. A+B=>C A=0m, B=0m, C=10m What happens to the concentrations of A,B,C? do they decrease or increase or no change to reach equil?
asked by Jenny 
Calculus
Derivative of: (t^7+t^81)/t^9
asked by Grace 
3rd grade math  arrays
Mary says that the greater number of counters, the greater the number of different arrays you can form. Give an example that shows that Mary is wrong.
asked by Trevor 
math
ratio of 8/9,quotient of 8/19,percent of 8/19.
asked by karl 
Physics
A fountain contains a 3 m tall cylinder with holes placed at a height of 1 m and 2m. The water level is kept constant at a height of 3 m by an input pipe. As water shoots out from the tube, it strikes the fountain pool at some distance x away from the
asked by Nick 
Physics
In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 8A (amperes), the resistance is 15 ohms. What is the current when the resistance is 4 ohms?
asked by Rachal 
math
your class has 8 women and 19 men. write the number of women to men as a ratio and as a quoyient. whatpercent of the class are women? show your work.
asked by karl 
prealgebrais my answer right
Rewrite the expression without using a negative exponent. 4z^4 Simplify your answer as much as possible. is this right? (1/4z^4)
asked by Rachal 
science
a roller coaster has an average speed of 5.0 m/s. if the roller coaster ride last 40 seconds, what distance does it travel?
asked by jessica 
GEOGRAPHY
List down four differences between evaporation and condensation
asked by Anonymous 
physics
Two friends are sitting in a stationary canoe. At the person at the front tosses a sack to theperson in the rear, who catches the sack 2 later. Which plot in the figure shows thevelocity of the boat as a function of time? Positive velocity isforward,
asked by Ed 
Algebra 1
Lesson 3 Assignment .Explain the differences between solving these two equations: By steps log3(x  1) = 4 AND log3(x  1) = log3^4
asked by Matt D. 
Physics
Explain atomic line spectra in terms of transitions between discrete energy levels.
asked by Hakuoh 
arithmetic
the first and second terms of an arithmetic progression are 161 and 154 respectively.the sumthe first m terms is zero.find the value of m
asked by parth 
Calculus
A cubic polynomial function f is defined by f(x) = 4x^3 + ax^2 + bx + k? A cubic polynomial function f is defined by: f(x) = 4x^3 + ax^2 + bx + k where a, b, and k are constants. The function f has a local minimum at x= 1, and the graph of f has a point
asked by Leanna 
Math
L1: (2,1), (1,5) L2: (3,5), (5,9) These lines are parallel because they have the same slope but different yintercepts.(Is this true and if it is how do you solve the problem and graph it)
asked by Khylisha 
Math
L1: (2,1), (1,5) L2: (3,5), (5,9) These lines are parallel because they have the same slope but different yintercepts.(Is this true and if it is how do you solve the problem and graph it)
asked by Khylisha 
Math
A. L1: (0,1), (5,9) L2: (0,3), (4,1) The lines are perpendicular because there slopes product equal 1. The point they intersect is (1.6,2.2).(Is this true and how do you solve it)
asked by Khylisha 
physics
An archer pulls her bow string back 0.400 m by exerting a force that increases uniformly from zero to 240 N. (a) What is the equivalent spring constant of the bow? 1 N/m (b) How much work does the archer do in pulling the bow? 2 J THANKS!
asked by jennifer 
Math
1. Imagine driving down a mountainside. You see a sign indicating there is a 12% grade. Approximate the amount of horizontal change in your position if you note from elevation signs that you have descended 2000 feet vertically. Use the embedded equation
asked by Khylisha 
Need someone to check
It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance policies. What is the probability that at least one policy will have emergency road service? Answer 0.6242 0.3758 0.8926 0.2684
asked by Anonymous 
physics
2 cars are in a race the first car is 200m ahead of the second car.the first car is moving with a uniform velocity of 30m/s while the second car starts from rest and accelerate to a rate of 4m/s how far and how long will it take the second car to meet the
asked by Seun 
algebra
Why does the inequality sign change when both sides ar multiplied or divided by a negative number?
asked by chris 
ALGEBRA 1
Lesson 3 Assignment .Explain the differences between solving these two equations: By steps log3(x  1) = 4 AND log3(x  1) = log3^4
asked by Matt D. 
english
can u find the climatic sentences in the poem Africa by David Diop
asked by kim 
english 3
Which one of the following statements is not true about the president Ratcliffe portrayed in The General History?
asked by caitlyn 
Chemistry
WRITE THE BALANCED CHEMICAL EQUATION,WRITE THE OVERALL IONIC EQUATION,IDENTIFY THE SPECTOR IONS AND POSSIBLE PRECIPITATES,WRITE THE NET IONIC EQUATION FOR mercury(II)chloride(aq)+potassium sulfide(aq)
asked by Jasmine 
Chemistry
2 CO (g) + O2 (g) > 2 CO2 (g) The mechanism below has been proposed for this reaction; (slow) O2 + CO > CO2 + O (fast) O + CO > CO2 Based on this mechanism what is the rate law for this reaction?
asked by John 
US History
What were the goals of the New Deal? Were these goals accomplished?
asked by Miley K. 
Chemistry
Reactions can be speeded by increasing the proportion of reactant molecules which collide with proper orientation. This can be accomplished by......... A)compressing the reactant mixture. B) heating the reactant mixture. C) addition of a catalyst. D)
asked by Gina 
Statistics Need someone to check
Ok so i don't know how i got that answer i think i typed in a wrong formula or read something wrong. I got .8926 for the first one. And the second one i don't know what i am suppost to use from the first answer to get that. Can someone help me. It is known
asked by Mike 
BIOCHEMISTRY
BY CALCULATIONS HOW WOULD I PREPARE 200ml of 80% GLYCEROL (V/V)
asked by ZANELE 
biiochemistry
showing by calculations how would i prepare the following solutions : 200ml stock solution of 1M NaOH (mwt 40g/mol)
asked by ZANELE 
Chemistry
A student dissolves 18.9 grams of Zn(NO3)2 [molar mass = 189] in enough water to make 500.0 of solution. A 100.0 ml portion of this solution is diluted to 1000.0 ml.What is the [NO3¯ ] in the second solution? A) 0.0100M B) 0.0200M C) 0.0300M D) 0.0400M E)
asked by Paul 
Chem
HA(aq)+ H2O (l) H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the
asked by Michael 
cell phone
Cell Phone Cell phones let you make or take calls wherever you happen to be. A third of the world’s population now makes their phone calls this way, and around 3 billion cell phones are in use worldwide. Screen: has a 176 x 220 pixel display that can
asked by cell phone 
Algebra
(8x^3  14x^2  27x  9) / (4x + 3)
asked by Tammy 
Science/ Physics
An airplane is traveling km/h in a direction 41.5 degrees west of north. (a) find the cmpopnets of the velocity in the northerly and westerly directions. (b) How far north and how far west has the plane traveled after 3.00 h?
asked by Kim 
science
A projectile is fired with an initial speed of 120m.s' at an angle of 60' above the horizontal from the top of a 50m high cliff. (a) determine the maximum height(above the cliff) reached by the projectile (b) how long it takes to fall to the ground from
asked by Mykmoloko 
RADICAL EXPRESSIONS/ALGEBRA 2
Hi. I pretty much have the answer for these problems that I worked out just need to know if there right. Thank you all! 16ã27 + 7ã108 = 90ã3 16ã9ã3 + 7ã36ã3 16 . 3ã3 + 7 . 6ã3 (48 +42)ã3 90ã3; And ã600x^4 = ã100 .
asked by AMY 
science
A projectile is fired with an initial speed of 120m.s' at an angle of 60' above the horizontal from the top of a 50m high cliff. (a) determine the maximum height(above the cliff) reached by the projectile (b) how long it takes to fall to the ground from
asked by Mykmoloko 
Maths
Solve the equation: Give your answer as a fraction in its lowest terms: 2x5=76x I'm getting 1/3 but i think that's wrong!?! Would appreciate some help please thanks! M
asked by Marian 
science
Suppose that you hold a garden hose on the ground. It spurts water at a speed of 6,0m.s' (a) at what angle (to the horizontal) should you hold the hose pipe if you want to water plants 2m away? (b) explain why there are two possible angles?.
asked by Mykmoloko 
chemistry
How much NH3 can be produce from 20 liter 32,5 wt%(NH2)2CO (urea) aqueous solution. The reaction path way is : (NH2)2CO +H2O= 2NH3+ CO2 Thanx
asked by Paul 
Maths
Solve the equation, give your answer as a fraction in its lowest terms: x2= 4x+7/6 (the whole part 4x+7 is over the 6) I'm getting 6 !!
asked by Marian 
ALGEBRA...HELP!!!!!!
Still cant figure this out (8x^3  14x^2  27x  9) / (4x + 3)
asked by Tammy 
Maths
Y is directly proportional to x If y= 10 when x=5 what is the value of y when x =30. The answer should be a number.
asked by Beth 
maths
This question is about plotting two points and drawing the straight line through them. Which two options are correct instructions for plotting two points which can then be used to draw the line y=2x+5. Select one or more. A) Plot the points (1.3) and
asked by Marian 
maths
Select the option that is the equation y=2x2 rearranged to make x the subject of the equation. Select one: x=y+1 or x=y/2+1 or x=y+1 or x=y/22 or x=y/2=1 or x=y2 or x=y2
asked by Marian 
Algebra
$3,800 principal earning 2%, compounded quarterly, after 7 years
asked by Presley 
maths
I've put what i think are the answers at the bottom. Consider the inequality −2 ¡Ü d
asked by Marian 
math
Use frontend estimation to find the value of the expression. 73,811 ÷ 462 =
asked by anonymous 
maths
I've put what i think are the answers at the bottom. Consider the inequality −2
asked by Marian 
Math
paper = 10 point, 10 off for each day late. student missed 5 out of 10 and was 3 day late. what is the score?
asked by Kathryn 
Chemistry
What is the pOH of a solution which has a [H+] = 1.0 × 10¯³M?
asked by Tony 
Geometry
Determine which set of numbers can be the lengths of the sides of a triangle. a. 13, 10, 16 b. 1, 2, 3 c. 5.2, 11, 4.9 d. 208, 9, 219 I believe the answer is a. 13, 10, 16. Is this right?
asked by Cheryl 
math
For a party, Mary has to bake 5 cakes, 3 pies, and 4 trays of cookies. One cake requires 2.5 cups of flour, one pie requires 1.25 cups of flour, and one tray of cookies needs 0.75 cups of flour. How much flour in all does Mary need to do the baking for the
asked by anonymous 
chemistry
if you mix 50ml of 0.1 tris acid with 60ml if 0.2m tris base, what will be the resulting pH?
asked by ashley 
the Civil War
Who won the battle of Fort Sumter?
asked by ms. T 
Math
Determine which points are the vertices of a triangle. a. A(3,1), B(0,0), C(3,1) b. H(4,2), J(4,2), K(12,6) c. P(2,4), Q(1,1), R(0,6) d. W(0,5), X(0,1), Y(0,5) Can someone help me with this because I don't understand where to start?
asked by Cheryl 
business accounting
Why does frequent feedback and recognition have a more powerful impact on longterm performance than a review once a year accompanied by a merit pay increase? Create a Rewards and Recognition Program. Illustrate your ideas and information with examples of
asked by Denese 
computer science
can please help me to fill this: In the TCP/IP model, the best path through the network is determined at the ______________ layer. In the OSI model, the same function is carried out at the ______________ layer.
asked by Sue 
computer science
The following is a possible XML description of a reference. From the options listed below choose the most appropriate statement about the accuracy of the use of XML in the description. Compton, R. 2010 SOA explained Retail Management vol. 14 no. 6, June
asked by Ramond 
business accounting
can anyone help me with ideas for motivational theories that will impact both management and employees. for a powerpoint
asked by Denese 
Dissappering Answers
Hi Jiskha! I was wondering why I see answers from people like: Ms. T and Alica Cunn And 5 minutes later there are gone! Why did that happen? Can I do that too? Thanks! Aimme
asked by Aimme J. Keller 
answers
how do you know when your question is answer
asked by Denese 
Physics
The value of a realworld resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually
asked by Jennifer 
PHY
Ok...I know this is a stupid question, but I need help! Ok, here it is: An object that has more electrons than it does protons will be _____ a CL^1 ion. repelled by attracted to unaffected by I know that opposites attract and that same repells, but I am
asked by Amber 
Spanish8th grade
Could someone please check if I answered these questions correctly? Thank you Please let me know if I did anything wrong. ¿Hay un supermercado cerca de tu casa? Si, hay un supermercado cerca de mi casa. ¿Qué necesitas hacer hoy? Necesito estudiar hoy.
asked by Jessie 
Physics
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive
asked by Abi 
CRIMINOLOGY
What types of social and environmental factors might cause someone to engage in white collar crime?
asked by kathy 
History
Is my 2 paragraph essay error free? I have double checked it in my Word document but I wanted to triple check! :) Thanks! Fort Sumter Loss This battle was located in South Carolina, from April 12th to the 14th later that month in 1861. The Confederacy
asked by Kate Moreuo 
Calculus
On what intervals is the function f(x)=x7−7x6 both decreasing and concave up?
asked by Laurin 
business accounting
Examples to illustrate your understanding and application of each level of the Maslow model. i need some powerpoint idles
asked by Denese 
chemistry
how do you Prepare a 0.1 L of a 0.1 M NaCl solution, and describe the process in writing.
asked by jack 
chemistry
how do you Prepare a 0.1 L of a 0.1 M NaCl solution, and describe the process in writing.
asked by jack 
business accounting
can someone help me with some poniter on Give examples of motivational factors for each level of Maslow's Hierarchy of Needs pyramid.
asked by Denese 
Calculus
Given a power function of the form f(x)=axn, with f(3)=20 and f(9)=1620, find n and a
asked by Alyssa 
world history
The decline of Tibet as a powerful kingdom happened? a. at the same time as the decline of the Tang dynasty b.during the Sui dynasty c. after the collapse of the Tang dynasty d. before the decline of the Tang dynasty
asked by Jesss 
CRIMINOLOGY
Manson did not actually commit the act of murder; he convinced his followers to carry out those actions. What about his social and environmental factors do you believe could have made him able to pursuade people to commit murder?
asked by kathy 
world history
Which of the following is a chinese school of thought that denounced ethics in favor of obedience? a. daoism b.legalism c. buddhism d. confucianism
asked by Jesss 
Chem
Write the balanced net ionic equations for the reaction of a) added H+ and B) added OH with the components of the acetic acid/sodium acetate buffer solution:
asked by Bubba 
ALGEBRA
FIND A POINTSLOPE FROM THE EQUATION OF THE LINE SATISFYING THE CONDITIONS. SLOPE 2, PASSING THROUGH (2,8)
asked by TRACY 
forensics
what are 10 real songs that have the words “photo”, “picture”, “scene”, “sketch”, “video”, or “evidence” in the title of the song.
asked by forensics 
chemistry
A sample of helium gas has a volume of 325l at 25c and at 5atm. At what temperature the gas can be compressed at 50atm to a volume of 125L?
asked by twynna 
chemistry
The volume of a gas is 435ml at 25c and at 740mmHg.What would be its new volume at STP?
asked by twynna 
chemistry
How many moles of argon gas are present in 70l of volume with a pressure of 280atm at 21c?
asked by twynna 
chemistry
what is the % mass/volume (%W/V)of KOH in 60ml of a solution that contains 5gn of KOH?
asked by twynna 
Phycology
provide an example of how one domain of development impacts the other one
asked by Lana 
chemistry
How many moles of KBr are there in 35.8ml of a 0.172M solution?
asked by twynna 
physcial science
during a test crash an air bag inflates to stop a dummys forward motion . the dummys mass is 75 kg.if the net force on the dummy is 825 n toward the rear of the car, what is the dummys deceleration
asked by Anonymous 
chemistry
How many moles of KBr are there in 35.8ml of a 0.172M solution?
asked by twynna 
chemistry
How many grams of NaOH are there in 2.5L of a 0.343M solution?
asked by twynna 
algebra
on three consecutive passes a football team gains 7 yards, loses 22 yards, and gains 33 yards, what number represents total yardage?
asked by Lin 
algebra 2
find the average rate of change for the function f(x)=60x3x^2 between x=6 and x=19
asked by katie 
physics
If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 81 km/h (50.3 mph or 22.5 m/s)?
asked by olga 
physics
How would your Mars weight compare to your earth weight if the acceleration due to gravity on Mars is 3.71 m/s2?
asked by olivia 
Science
Determine the number of grams of KNO3 which will dissolve in 100 grams of H20 at 100 degrees celscius?
asked by Jessica 
physics
three spheres, each with a negative charge of 4.0*10^6 C, are fixed at the vertices of an equilateral triangle whose sides are 0.20m long. Calculate the magnitude and direction of the net force on each sphere. So far i have drawn a diagram and used the
asked by Diana 
physics
Locomotive exert on a 13160kg boxcar to make it accelerate forward at 0.40 m/s2. How long will it take the boxcar to reach its cruising speed of 105 km/h (65.2 mph or 29.2 m/s)?
asked by olivia 
physics
Two identical small spheres of mass 2.0g are fastened to the ends of an insulating thread of length 0.60m The spheres are suspended by a hook in the ceiling from the centre of the thread. The spheres are given identical electric charges and hang in static
asked by Diana 
HISTORY
Which of the following was NOT a reason that slavery became more broadly used in Virginia after Bacon's Rebellion? a. the economic incentives made by the British government b. the increasing survival rate of all people in the region c. the declining price
asked by TBaby 
Chemistry
Write and balance an equation for a reaction in which iron (Fe) and hydrochloric acid (HCL) reacto to form iron chloride (FeCl2) and hydrogen (H2)
asked by Sadie 
algebra
2x+(xy)^3 when x=9 and y=7 This problem is from a test review sheet (answer included)I have almost filled a notebook trying to solve this.
asked by Vikki 
physics
A sprinter can reach a speed of 12 m/s in 0.96 s. If the sprinter’s acceleration is constant during that time, what is the sprinter’s acceleration?
asked by olga 
Economics
Why is restriction of trade likely to reduce material welfare
asked by Anonymous 2 
science
What instrument is used to accurately measure time it takes for a stone to drop 2metres? I am in yr 7
asked by Eleanorah 
chemistry
the shape and nonding in a Br2 molecule is best described as
asked by ashley 
Phys
The value of a realworld resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually I think either never or rarely, but I'm not sure. When you unplug the resistor, the Ammeter and Voltmeter reading
asked by Jennifer 
sciene
A kid applies a force of 70 N to a ball over 1.1 meters. How much work did he do on the ball?
asked by brittany 
Spanish
Does anyone here know Spanish? I am trying to divide the word "profesora" into morfemas. At first I thought it might be prfesora, but I don't think that is correct? Is it possible that it is just one simple word? Can anyone help with this?
asked by Mike 
cryptology
Who is Anthony Babington? (include the manner of his death)
asked by TITI 
The Odyssey book nine project help
So, I'm creating a project for Book Nine of the Odyssey, and, I need some ideas. facts: It's a childrens book, so grades 45, you have to make it interesting and the info must be accurate.. My question is.. What are some ideas that I could use to make my
asked by Allyson 
AP Physics
A transverse wave is traveling with a speed of 500 m/s on a horizontal string. If the tension in the string is increased by a factor of 2, what is the speed of the wave?
asked by James 
finance
In computing the cost of common equity, if D1 goes downward and Po goes up, Ke will
asked by leo 
physic
A small car with a mass of 950 kg travels northward at 30 m/sDoes the car have more or less momentum than a truck with a mass of 10000 kg traveling eastward at 16 m/s?How much more or less?.
asked by Anonymous 
middle school social studies
i Choose "A" is this correct???........Anne Hutchinson questioned all the following ideals of the Massachusetts Bay Colony EXCEPT a. the notion that women should be inferior in matters of religion. b. the notion that salvation came from being a member of
asked by Anonymous 
Chemistry
2 CO (g) + O2 (g) > 2 CO2 (g) The mechanism below has been proposed for this reaction; (slow) O2 + CO > CO2 + O (fast) O + CO > CO2 Based on this mechanism what is the rate law for this reaction?
asked by John 
Chemistry
Determine the number of grams of water which are required to dissolve a mixture of 25 g of KNO3 and 2.0 g of CuSo4 * 5H20 AT 100 Degrees celscius?
asked by Jessica 
science
if a dog runs 6 meters in 1 second and then at the end of the second second the dog ran an additional 4 meters. what would describe the dogs motion in both seconds
asked by Anonymous 
french
ton cahier est le_______{mieux,meilleur}which one should i use?
asked by godwin 
history
what form of government was ancient egypt?
asked by Sara! 
4th grade fractions
Ms. Ross's class has 23 students.2/3 of her students have brown hair. The rest have blond hair. How many students have brown hair?
asked by Tiea 
history
how did ancient egypt become so dominant and how did it decline?
asked by Sara! 
Physical therapy aide
A pta can supervise a physical therapy aide to perform all of the following except
asked by Shannon 
AP Physics
At a height of 5 meters above the surface of a freshwater lake, a sound pulse is generated. The echo from the bottom of the lake returns to the point of origin 0.140 s later. The air and water temperatures are 20°C. How deep is the lake?
asked by Alan 
advanced funtions
describe the similarities and differences between y=x^2 and a power funtion with a even degree higher than two?
asked by balasaba 
Math
can please someone help me to solve this question: 18 MB of data are to be transmitted over a 4 megabits per second connection. How long should the complete transmission take, to the nearest 0.1 s?
asked by Ramond 
math
What is the value of 3/14 rounded to the nearest fourth?
asked by Kyle 
math
write 5 names for 0.75
asked by sopiu 
algebra word problems
A window is shaped like a rectangle whose perimeter is 294 in. The length is 6 times as long as the width. Find the length
asked by shelia 
types of business writing
what is the answer to penn foster exam 02800601
asked by tj 
History
which empire was dominant? was it Greek or Egypt??
asked by Sara! 
AP Chemistry
What is the chemical equation that corresponds to the standard molar enthalpy of formation of N2O?
asked by jules 
geometry
a rectangular box has dimensions 9cm by 6 cm by 24 cm. a second rectangular box has volume onehalf of the first and has a base 6 cm by 4 cm.what is the height of the second box
asked by ann 
AP Chemistry
what is the oxidation state of iron in K4[Fe(CN)6]?
asked by jules 
business accounting
is there a web sit that will help we with. What does a manager have to do to get an employee's needs met at one level of Maslow's pyramid so they can progress to another level of the pyramid.
asked by Denese 
geometry honors
if the volume of the pyramid is 64 feet cubed and the height is 16 feet what is the area of the base measured in square inches?
asked by erin 
cultural diversity
what is acculturation
asked by m 
Shurley Englich
Classify the word "Were" in "Were the frightened animals hiding during the storm yesterday?
asked by Marsha 
Survey of the sciences
Show that one mole of sugar equals 342 grams.
asked by Stephanie 
Shirley English
Is the word "during" a preposition in "Were the animals hiding during the storm yesterday."
asked by Marsha 
PHYSICS PLEASE HELP
An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 134 kg. During a spacewalk, the unit, which has been completely filled with propellant gas, ejects some gas with a velocity of +32
asked by maria 
physics
A 73.0 kg box slides down a 30.0 ramp with an acceleration of 3.60 m/s2. Find ìk between the box and the ramp. The acceleration of gravity is 9.81 m/s2 .
asked by hh 
jayne
Five socks, colored blue, brown, black, red, and purple are in a drawer. how many combinations of three socks can be randomly selected from the drawer?
asked by Math 
Physics
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 220 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +3.5 m/s relative to the shore, and then hops onto an identical
asked by hy 
Survey of the sciences
When the hydronium ion comcentration of a solution equals 1 mole per liter, what is the pH of the solution? Is the solution acidic or basic?
asked by Stephanie 
Bio
I am trying to lable a Paramecium I know for a plant cell, the outer "layer" is called the cell membrane. what would the name for it be on a Paramecium? I have tried looking it up but the diagrams are confusing thanks!
asked by Dawn 
math
im in the 5th grade and i need help is on metric measures and conversoins
asked by brian 
math
what is 1/6 hour later than5:55
asked by Anonymous 
Bio
I am trying to lable a Paramecium I know for a plant cell, the outer "layer" is called the cell membrane. what would the name for it be on a Paramecium? I have tried looking it up but the diagrams are confusing thanks!
asked by Dawn 
Trig
Are 120 and 240 coterminal?
asked by Isabella 
math
A student planning her curriculum for the upcoming year must select one of four business courses, one of four mathematics courses, two of ten elective courses, and either one of four history courses or one of four social science courses. How many different
asked by Nicole E 
chemistry
what are the halogens at 25 degrees celcius and 1atm?
asked by jules 
Math
True or False? If the inverse function of f exists, and the graph of f has a yintercept, the yintercept of f is an xintercept of f^1
asked by Sam 
PreCalculus
(R=restaurant) If R1 is 4808t0.8t^2 and R2 is 254+0.78t, how would I write a function (R3)that represents the total sales for the the two restaurants?
asked by Dave 
BioChemistry
Write the oxidation equation for secbutyl alcohol. How do I do this?
asked by Tia 
geometry
In the figure shown (sorry no diagram, but description below), NK and ML are parallel, JN=10 feet, NK=14 feet, JL=22 feet, and ML=24. Find KL. Its a triangle with JN and NM on the left side and JK and KL on the right side. NK is a horizontal line in the
asked by shb 
BioChemistry
Write the oxidation equation for secbutyl alcohol. How do I do this?
asked by Tia 
Mathematics
The suggested retail price of a new car is p dollars. The dealership advertised a factory rebate of $1200 and an 8% discount. How would I write the function R in terms of p giving the cost of the car after receiving the rebate from the factory?
asked by Steve 
English
Can you please check these sentences? Thank you very much 1)King Philip II of Spain plans to take over England and wants his daughter to become Queen of England in Elizabeth's place. 2) On the other hand, Elizabeth is pressured (or pressurized)? to get
asked by Franco 
Math
H(x)= 0.002x^2+0.005x0.029 where x is the speed of the car in miles per hour. How can I rewrite the function so that x represe the speed in kilometers per hour. [Find H(x/1.6)]
asked by Ethan 
chemistry
How many milligrams of a mixture containing equal numbers of moles of CH4 and N2 at 10 ATM total pressure will dissolve in 1 L of water at 20°C ??? Convert 16g/mol CH4 28g/mol N2 ???need density .998g/ml H2O
asked by Neil 
fhfhfhfh
Suppose there is a rectangluar backyard that measures 15 x 20 meters, what is the area of the yard
asked by fffhfhfhh 
Math
If M(t)=29.9t^2+3892, where t=0 represents 1990. How would I describe the transformation of the common function f(t)=t^2. How can I rewrite the function so that t=0 represents 2000.
asked by Caroline 
Math
7/10 of your body is made of water. Is more than 1/2 of our body water? Explain. How do you start this
asked by Gio 
Calculus
A right triangle has one leg on the xaxis. The vertex at the right end of that leg is at the point (3,0). The other vertex touches the graph os y=e^x. the entire triangle is to lie in the first quadrant. Find the maximum area of this triangle.Justify your
asked by Amanda E. 
Rounding Decimals
Use the digits 0,2,5 and 8. Write a decimal that will round up if rounded to the nearest whole number, round down if rounded to the nearest tenth, and round up if rounded to the nearest hundredth.
asked by Irene 
beginning algebra
The length of a rectangle is 1ft more than twice its width, and the area of the rectangle is 28ft^2 . Find the dimensions of the rectangle. l= w=
asked by Rachal 
Rounding Decimals
Marley and Hassan rounded the number 7.483. Marleys answer was greater than 7.438. Marleys answer was greater than 7.483, and Hassan's anser was less. Towhat place might the number have been rounded by Marley? By Hassan? Explain.
asked by Iris 
Statisticsdesperate
I don't know how to post some of the question is there a way I can upload it?
asked by Rachal 
Physics
A block moving to the right at 12 m/s is placed on a surface having a friction coefficient of 0.3. Find the time in seconds it takes for the block to stop.
asked by Logan 
Physics
Hello, I am doing a physics experiment regarding rotational motion and equilibrium. We have the following lab setup and are supposed to find the unknown mass. How should I approach this? file:///C:/Users/Rahul/Desktop/Lab%20Drawing.jpg
asked by Rahul 
Science
A block of ice of mass M is pulled horizontally with a steady force P against a force of friction F I have to write an equation for the acceleration of the block.
asked by Tyler 
Chemistry
A sample of nitrogen gas occupies 1.55 L at 27oC and 1 atm pressure. What will the volume be at 100oC and the same pressure?
asked by Alyssa 
MATH PLEASE HELP!
True or False? If the inverse function of f exists, and the graph of f has a yintercept, the yintercept of f is an xintercept of f^1
asked by Sam 
Math
Please Help! (R=restaurant) If R1 is 4808t0.8t^2 and R2 is 254+0.78t, how would I write a function (R3)that represents the total sales for the the two restaurants?
asked by Dave 
Math
The suggested retail price of a new car is p dollars. The dealership advertised a factory rebate of $1200 and an 8% discount. How would I write the function R in terms of p giving the cost of the car after receiving the rebate from the factory? I TRULY
asked by Steve 
Math (Truly Need Help)
H(x)= 0.002x^2+0.005x0.029 where x is the speed of the car in miles per hour. How can I rewrite the function so that x represe the speed in kilometers per hour. [Find H(x/1.6)]
asked by Ethan 
physics graphing help please
(a) Write the equation for a transverse sinusoidal wave with a maximum amplitude of 2.5 cm and an angular frequency of 2.9 rad/s that is moving along the positive xdirection with a wave speed that is 5.00 times as fast as the maximum speed of a point on
asked by Trace 
Social Studies
How was the culture of the Ottoman rulers similar and different from the cultures of the people they ruled in Southwest Asia? Plase help me with this question its confusing me so much!
asked by Emily 
math
wirte four names for 13.
asked by Jada 
Math
how do i do volume of a 3d shape
asked by Simone 
chemistry
% recovery: how do i calculate it? we're doing a recrystallization in chem class we used 0.1 g and we recovered 0.3 g how do i calculate the percent recovery?
asked by jessie 
Science
why is high blood pressure called the "silent killer"? What might happen if you have a high blood pressure?
asked by Erika 
Question
Does it have to be about math?
asked by Julia 
science
why is high blood pressure called the "silent killer"? What might happen if you have a high blood pressure?
asked by Erika 
Math
How do you find the solution to this system of equations? y=x+2 y=x(squared)
asked by Jillian 
math
what does squared and cubed mean?
asked by Julia 
algebra
a hockey team played n games, losing four of them and winning the rest. What is the ratio of games won to game lost
asked by aziz 
Science/Health
What might happen if you have a high blood pressure????
asked by Erika 
history
what were the similarites and differences between the greek and egyptian empire?
asked by Sara! 
Math
x^+y^=36 y=x+2 Find exact solution for the system of equations
asked by Jillian 
chemistry
in this experiment about recrytallization im having a strange problem with the calculations. we used 0.1 gram of impure unknown, but we recovered 0.3 gram of purified unknown. so to get % recovery: isnt it like this? 0.10.3/0.1 x 100 = 200? please help!
asked by jessie 
Science
Will adding30g of SO2 to 100g of water at 0 degrees C create a staurated solution? Explain
asked by Anonymous 
advanced funtions
describe the similarities and differences between y=x^2 and a power funtion with a even degree higher than two? please help me!!!
asked by balasaba 
ap. history
How did overproduction, under consumption, and stock market speculation lead to the stock market crash of 1929 and the Great Depression?
asked by Asher 
Physics
A capacitor consists of a set of two parallel plates of area A separated by a distance d. This capacitor is connected to a battery that maintains a constant potential difference between the plates and has charge Q1. If the separation between the plates is
asked by Sam 
U.S history
What importance did the passage of the Social Security Act play in the second New Deal?
asked by Asher 
precal/ algebra
how is the transformation y=f(x+3)^2+2 affected. f(x) has the vector of (2, 6) so it would move left 3 units and up 2 so the new vector would be (1,4)... is that correct
asked by Nayyab 
World Geography
What are three ways geography influenced Roman History?
asked by Hannah 
math
four guys scored 1 1/2,8 3/4,5 1/8 and 1 1/4 points for their team what is the total number of points they scored?
asked by sugarman 
chemistry
Imagine a hypothetical reacion for which, H = 0 kJ · mol−1. Considering the Le Chatelier principle, which of the following statements is true? a. Raising the temperature of the system will have no effect. b. Raising the temperature of the system will
asked by Eddy 
chemistry
For the reaction 4NH3(g) + 3O2(g) > 2N2(g) + 6H2O(g) , K = 10^80 at a certain temperature. Initially, all reactants and products have concentrations equal to 12 M. What is the approximate concentration of ammonia at equilibrium? a. 3 M b. 12 M c. 18 M d.
asked by Eddy 
algebra
The area of a rectangular athletic field is represented by the expression 16y^7+32y^5+80y^3 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include
asked by Rihanna 
Math
Which fraction is equal to 1/5? A.2/10 B.3/10 C.1/15 D.2/15 Can you show me the steps?
asked by Joe 
math
how do you write seven names for 8.Using only numbers less then 10 and using at least three different operations in each name.Using also parentheses.?
asked by suzie 
Math
Explain why 1/8 is greater than 1/10, but less than 1/3.
asked by Nina 
history
where the athens greek??
asked by Sara! 
CHemistry
The vapor pressure of an organic solvent is 50 mm Hg at 25°C and 200 mm Hg at 45°C. The solvent is the only species in a closed flask at 35°C and is present in both liquid and vapor states. Determine the mole fraction of solvent in the gas phase.
asked by Anonymous 
U.S history
What was the Wagner Act and how did it lead to the rise of industrial unionism?
asked by Asher 
math
lim x>2 [((6x)^1/2)2] _______________ [((3x)^1/2)1]
asked by quoc 
math
lim x>2 [((6x)^1/2)2] _______________ [((3x)^1/2)1]
asked by quoc 
math
lim x>2 [((6x)^1/2)2] _______________ [((3x)^1/2)1]
asked by quoc 
CRIMINOLOGY
There are people who believe that for diseases such as autism, a change in diet can alter the severity of the symptoms. Your point also brings up a discussion of the myth of the "Twinkie defense". Do you think that this type of defense has merit? Why or
asked by kathy 
Physiology
A patient’s blood cell count shows 15,000 white blood cells (WBCs) per µL of blood. A normal WBC count is about 9,000 cells/µL (the normal range is actually 4,000 to 11,000 WBCs/µL). What percent of normal is this particular patent’s WBC count?
asked by Ivy 
Physics
A class of 11 students taking an exam has a power output per student of 124 W. Assume that the initial temperature of the room is 18.7°C and that its dimensions are 6.00 m by 14.5 m by 3.40 m. What is the temperature (in °C, do not enter units) of the
asked by Kelsey 
Physiology
Obesity is defined medically as 20% above a person’s ideal weight. If a person’s ideal weight is 72 kg, when (above what weight) would that person be considered obese? ________________kg
asked by Ivy 
Physiology
If a man’s ideal weight is 165 lbs. and he weighs 185 lbs., how many pounds above his ideal weight is he? What percent above his ideal weight is he? ______________lbs. above ideal weight ______________% above ideal weight
asked by Ivy 
math
1 1/2+ p)*2^2=12 what is p?
asked by kelly 
business math
Bob makes his first deposit into an IRA earning % compounded annually on the day he turns 27 and his last deposit on the day he turns 35. (9 equal deposits in all.) With no additional deposits, the money in the IRA continues to earn % interest compounded
asked by lauren 
math
The sum of the measures of the three angles of any triangle is 180°. In the illustration, the measure of 2 (angle 2) is 7° larger than the measure of 1. The measure of 3 is 31° larger than the measure of 2. Find each angle measure.
asked by kylie 
math
What are all the angles in each garden if there are two similar squares
asked by whitney 
math
96 words typed in 3 minutes
asked by Anonymous 
Math  Please Help
Find two positive fractions such that if we switch the denominators, the sum afterthe switch is 50 times the original sum.
asked by qwerty123 
business math revised
Bob makes his first $800 deposit into an IRA earning 7% compounded annually on the day he turns 27 and his last $800 deposit on the day he turns 35. (9 equal deposits in all.) With no additional deposits, the money in the IRA continues to earn 7% interest
asked by lauren 
statistics
A sample of n=5 scores has a mean 50. Another sample has n=10 scores and a mean of 60. If the two samples are combined, will the combined sample mean be greater than 55
asked by Carrie 
Physics
An ideal spring has the spring constant k = 395 N/m. Calculate the distance this spring must be stretched from its equilibrium position for 28.9 J of work to be done.
asked by Em 
physics
The potential energy at point D at x = 8 m is 2000 V and at point B at x = 2 m is +400 V. What is the magnitude and direction of the electric field?
asked by Alex 
math
y=2x2 y=x+2
asked by Anonymous 
Algebra
Please help me solve for the following coefficients. The equation is: 2XY=4 if X = 0, then Y = ? if Y = 0, then X = ? if X = 1, then y = ? if Y = 6, then X =? Thanks!
asked by Zach 
algebra
How do you multipl (3a2b)(4a+3b)??
asked by nina 
hcs/335
How might a manager deal with elements of an organization’s culture that are, or are perceived as, inconsistent? Please provide a clear and relevant example.
asked by sammi 
Social Studies
What is the definition for State Government?
asked by Callie 
Africa
What is a deep trench in the earth
asked by Anonymous 
Social Studies
What is the definition of National Government?
asked by Callie 
Math
3 LESS THAN TWICE X AND 2 MORE THAN THE QUALITY 3 TIMES X? I need the product?
asked by Shun 
algebra
Find value of x: x(x+2)=7
asked by Frank 
math
The ratio of boys to girls in a school choir is 4:3. There are 6 more boys than girls. If another 2 girls join the choir, what will be the new ratio of boys to girls????
asked by Katherine 
to HELPER advanced funtions
that answer wasn't the one I looked for. i didn't want to be mean so i reposted it. can you please help me! THANK YOU SO MUCH !! describe the similarities and differences between y=x^2 and a power funtion with a even degree higher than two?
asked by balasaba 
physics
The boy on the tower of height h = 20 m in the figure below throws a ball a distance of x = 52 m, as shown. At what speed, in m/s, is the ball thrown?
asked by Anonymous 
chemistry
You remember Dr. Laude saying something about how adding salt to water increases the boiling point. If you have 1 cup (8 fl. oz. = 250 mL = 250 g) of H2O, how much NaCl should you add in order to raise the boiling point to 105C?
asked by jalyn 
Math
use the digits 1,2,3, and 4 to write a number in scientific notation that is close to .001 this was in a 7th grade algebra book... what? is this even possible without the use of 0?
asked by Tokey 
PHYSICS
The value of a realworld resistor ______ changes with significant time as the resistor conducts a current. never rarely sometimes usually I think either never or rarely, but I'm not sure. When you unplug the resistor, the Ammeter and Voltmeter reading
asked by Jennifer 
Math (Propogation)
Consider an antenna transmitting a power of 5W at 900MHz. Calculate the received power at a distance of 2km if propagation is taking place in free space.
asked by Nathan 
Math
Consider an antenna transmitting at 900 MHz. The receiver is traveling at a speed of 40km/h. Calculate its Doppler shift.
asked by Josh 
Pre Algebra
I need help figuring out simple interest and the balance of an account. Example P = $525, r = 6%, t + 9 years
asked by Caleb 
chemistry
A 20.2g chunk of magnesium metal reacts with 13.7 g of oxygen gas to make magnesium oxide. Write the balance equation.
asked by Kim 
Pre Algebra
I need help figuring out simple interest and the balance of an account. Example P = $525, r = 6%, t + 9 years
asked by Caleb 
AP Chem
What mass of K2CO3 is required to clean up a spill of 282 ml of 1.05 M HCl if HCl(aq) reacts with K2CO3 according to 2HCl(aq) + K2CO3(aq) → 2KCl(aq) + CO2(g) + H2O(l)?
asked by Sky 
Art
what are some contemporary examples that utilize idealism?
asked by Quentina 
math !!!! :O
The ratio of boys to girls in a school choir is 4:3. There are 6 more boys than girls. If another 2 girls join the choir, what will be the new ratio of boys to girls????
asked by Katherine 
U.S history
how did the wagner act lead to the rise of industrialism unionism
asked by Asher 
math
6.4  y = 6 2/5
asked by kelly 
math
6.4  y = 6 2/5 what is y?
asked by kelly 
math
x=2 output=12 x=1 output =9 x=4 output =6 help me solve
asked by jack 
Desktop Publishing & Design :Illustrations
1. To be truly effective in a publication, an illustration should A. appear in a darker shade or color than text. B. appear in a lighter shade or color than text. C. complement the document's layout and text. D. feature a thin, dark border. 2. What is the
asked by Anonymous 
math
x=2 output=12 x=1 output =9 x=4 output =6 help me solve
asked by jack 
math
x=2 output=12 x=1 output =9 x=4 output =6 help me solve
asked by jack 
5th grade math
In 2000 the population of goddard was 5,554. The population of Valley Center was 7,323. What is the Approximate difference between the populations, to the nearest one hundred people. please! help I'm totaly confuse with this question?? do you substract it?
asked by pat 
Human service
What does the term Feminist mean, and what do you think it has come to mean to others, and what about from the same class or ethnic background?
asked by Quentina 
JAVA
How to enhance the Bank Account class by including free checking and saving accounts, withdraw methods and deducting monthly charge using Math.max(actual tranaction count, free tranaction count) in the computation.
asked by Yassah 
5th grade math
Which answer shows data with a range of 49? A. 45,69,92,59 B. 95,59,52,89 C.99,66,51,52 D.55,99,78,50 if you select one of the answer .How do you solve the problem.? i was wonder how ?please explain your answer please!! so the next problem i try to solve
asked by pat 
statistics
A family therapist states that all parents in America talk to their teenagers an average of 17 minutes per week. A psychologist decides to test this by collecting data from a sample of 9 parents on how much time they spend talking to their teenagers per
asked by fredia 
math
A line segement from the center to any point on the circle is a _______? thanks Payton
asked by Payton 
Physics
A quarterback claims that he can throw the football a horizontal distance of 183 m (200 yd). Furthermore, he claims that he can do this by launching the ball at the relatively low angle of 35° above the horizontal. To evaluate his claim, determine the
asked by Lindsay 
Physics
An electron, initially at rest is accelerated through a potential difference of 550 V. What is the speed of the electron due to this potential difference?
asked by Rusty 
Physics
The potential difference between the plates of a parallel plate capacitor is 35 V and the electric field between the plates has strength of 750 V/m. If the plate area is 4.0 × 102 m2, what is the capacitance of this capacitor?
asked by Rusty 
chemistry
A steel tank containing helium is cooled to 15 C. If you could look into the tank and see the gas molecules, what would you observe?
asked by Anonymous 
Math
I am stuck on trying to figure out how to do this question. Could someone please show me 5 necessary steps ? Thank you. Here is how the assignment question is worded. Select any two integers between 12 and +12 which will become solutions to a system of
asked by Tiffany 
Science
Rocks exposed as glaciers melt absorbs more energy than it reflects TRUE or FALSE Please help me. This question is gonna be in my test tomorrow
asked by Miley 
business math
Stereo Inc. sells a stereo system for $300 down and monthly payments of $80 for the next 3 years. If the interest rate is 3.25 % per month, what is the cost of the stereo?
asked by jack 
maths pre ap
Krispy Krunch cereal is 49% sugar. about how many ounces of sugar are in a 16 oz box of Krispy Krunch?
asked by alison 
stoichiometry
Ammonia gas reacts with oxygen gas according to the following equation: 4NH3 + 5O24NO + 6H2O a. How many moles of oxygen gas are needed to react with 23 moles of ammonia? (29 mole) b. How may grams of NO are produced when 25 moles of oxygen gas react
asked by Jonathan 
Geometry
Write an indirect proof. Given:n^2 is even Prove: n^2 is divisible by 4.
asked by Shadow 
math
how do you write seven names for 8.Using only numbers less than 10,and using at least three different opperations in each name.(ALSO USE PARENTHESES FOR TWO OF YOUR ANSWERS) I NEED HELP ON THIS!! please and thank you
asked by amy 
calculus, limits, l'hopital
Using l'hopital's rule, find the limit as x approaches infinity of (e^(6/x)6x)^(X/2) I know l'hopital's rule, but this is seeming to be nightmare. I just don't seem to get anywhere.
asked by Kate 
Calculus
Use the graph to estimate the limit: lim x>0 sin(3x)/x When x is in degrees lim x>0 sin(3x)/x = ________ I thought the the answer was (3*180)/pi but it's not... please help... Thanks
asked by Abi 
Physics
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive
asked by Abi 
Science
Why do scientists use models to study the movement of Earth and its moon?
asked by Nalla 
Calculus
Consider the function f(x)=sin(5x)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= ( I need the values of f(x) for each x) (b) Based on your table of values, what would you expect the limit of
asked by Abi 
math
how do i write 7.8x10^7 in standard form?
asked by angiie 
advanced funtions
describe the similarities and differences between y=x^2 and a power function with a even degree higher than two? please help me!!! i wrote that the domain and range were the same for even funnctions. i wrote that they both share the vetical relfection
asked by Anonymous 
History Berlin Wall
I posted my assignment below, but I don't want you to write me my article. I have started already, but I need someone to answer my question so I can write the rest of my paper. Please, if you HAVE to include links, just don't put Wikipedia. But try not to
asked by Heather 
calculus, limits, l'hopital
Using l'hopital's rule, find the limit as x approaches zero of (e^(6/x)6x)^(X/2) I know l'hopital's rule, but this is seeming to be nightmare. I just don't seem to get anywhere. I mistyped the first time I posted this question.
asked by Kate 
chemistry
The vapor pressure of an organic solvent is 50 mm Hg at 25°C and 200 mm Hg at 45°C. The solvent is the only species in a closed flask at 35°C and is present in both liquid and vapor states. the system pressure is 760mmHg. Determine the mole fraction of
asked by Anonymous 
Repost Calculus; someone please help
Please help out. Thank you. A right triangle has one leg on the xaxis. The vertex at the right end of that leg is at the point (3,0). The other vertex touches the graph os y=e^x. the entire triangle is to lie in the first quadrant. Find the maximum area
asked by Amanda E. 
Engineering Economics
Sensotech Inc., a maker of microelectromechanical systems, believes it can reduce product recall by 10% if it purchases new software for detecting faulty parts. the cost of the new software is 225000. 1 how much would the company have to save each year
asked by Ating 
Physical science
Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?
asked by Anonymous 
chemistry
If you have a 37.34g sample of ammonium chromate , how many protons do you have?\
asked by T 
Physical science
Compare the number of valence electrons an oxygen atom has with the number of valence electrons a selenium atom has. Are oxygen and selenium in the same period or group?
asked by Anonymous 
Calculus
Let f be the function defined for x >or= to 0 with f(0)=5 and f', the first derivative of f, give by f'(x)=e^(x/4)sin(x^2). A) Use the graph of f' to determine whether the graph of f is concave up, concave down, or neither on the interval 1.7
asked by Leanna 
Biology  Uncertainty
I'm doing a bio lab, and I have collected data on heart rate measured in beats/15 secs with an uncertainty of +/ 1 beat/sec. To get heart rate per minute, I multiplied my data by 4, making my uncertainty +/ 4 beats/min. However, what I need to do now is
asked by Stuck 
chemistry
All of the lanthanide metals react with HCl to form compounds having the formula MCl2,MCl3,or MCl4 (where M represents the metallic element). Each metal forms a single compound. A chemist has .250g sample of a transition metal, and wishes to identify the
asked by T 
Math
On a die, the top and bottom numbers always add up to 7. What are the three pairs that each add up to?
asked by Lauren 
physics
a 60kg patient exercise on the treadmill, exerting a constant force of 500N while running at a constant velocity of 4 m/s at an angle of 30 for 5 minutes. the coefficient of kinetic friction of the treadmill os 0.45. determine the work done by the
asked by clariss 
math
how do I find the value of 4527/3x(58)? the "/" means divide
asked by angiie 
Math
What is the ratio comparing the length in a drawing to the corresponding length of the object is called?
asked by Lauren 
Calculus
Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the
asked by Abi 
Calculus
Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the
asked by Abi 
Engineerin Economics
Sensotech Inc., a maker of microelectromechanical systems, believes it can reduce product recall by 10% if it purchases new software for detecting faulty parts. the cost of the new software is $$ 225000. 1 how much would the company have to save each year
asked by Atem 
spanish/help please
Can you help me write these numbers in spanish? 20,030,000 14,559 67,900,008 200,700,100 1,432,626
asked by mike 
science
a neutron star, which is the remnant of an exploded massive star, consists of neutrons packing together with a total density of 3.03x10 14g/cm3. if you had a 1.40 cm3 sample of matter(about the size of a suger cube),what would its mass be?
asked by bonnie 
Chemistry
2 CO (g) + O2 (g) > 2 CO2 (g) The mechanism below has been proposed for this reaction; (slow) O2 + CO > CO2 + O (fast) O + CO > CO2 Based on this mechanism what is the rate law for this reaction?
asked by John 
geometry
what is the shortest length of string that can be cut into all 5cm lengths, all 8cm lengths or all 10cm lengths?
asked by Anonymous 
Chemistry Drbobhelp
I have placed the answer I got please help. A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 870mL
asked by Paul 
Math
Every week, Linda must stuff 1000 envelopes. She can do the job by herself in 6 hours. If Laura helps, they get the job done in 5 1 2 hours. How long would it take Laura to do the job by herself ?
asked by Isa 
Physics
The cake company truck is on it's way deliver a cake for a party when it rounds a curve of radius 20 m at a speed of 12 m/s. What coefficient of friction is needed between the cake pan and the truck in order to keep the pan from slipping? please show work!
asked by coefficient of fric? 
Finance/Accounting
How did the SarbanesOxley Act affect the accounting profession? Did it change their relationship to businesses?
asked by Sam 
urgent alg 1
add or subtract 2 2 (2t 8t)+ (8t + 9t) second question 3 2 3 (t +8t ) + (3t ) please helpp its urgent i have the answer butt im not suree pleasee helpp
asked by kimberly 
math
exmple of porportion and ratios in your daily lives.
asked by sue