Questions Asked on
December 10, 2017

math
A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Five hundred and forty feet of fencing is used. Find the dimensions of the playground that maximize the total enclosed area. What is
asked by rachel 
Calculus
A rectangular box with a square base and cover is to have a volume of 2500 cubic feet. If the cost per square foot for the bottom is $2, for the top is $3, and for the sides is $1, what should the dimensions be in order to minimize the cost?
asked by Greg 
Chemistry
Write the net ionic equation for the following reaction : Na3SO4(aq) + Ba(NO3)2(aq) —> BaSO4 (s) + 2 NaNO3(aq)
asked by Lauren 
Chem help
Consider the following system, which is at equilibrium, CO(g) + 3 H2(g) CH4(g) + H2O(g). The result of removing some CH4(g) and H2O(g) from the system will be A. more CH4 is consumed to restore the equilibrium B. Kc decreases C. more H2O(g) is consumed to
asked by Anonymous 
Sociology
Soot plays an important role in climate change, but ______ is still the leading cause of Earth's changing climate. A. acid rain B. nitrous oxide C. carbon monoxide D. carbon dioxide I can't decide between B and D
asked by M 
math
A cockroach traveling 2 feet per second takes how long to scurry a distance of 46 feet? seconds
asked by Jen 
Computer Science JAVA
Project 4 Introduction  the SeaPort Project series For this set of projects for the course, we wish to simulate some of the aspects of a number of Sea Ports. Here are the classes and their instance variables we wish to define: SeaPortProgram extends
asked by Moe 
Math
Can someone explain how to use AAS to create a congruent triangle using this "Measure two angles and a side of the triangle not connected to those angles." So I already have two angles one is 25 and the other is 30. Can someone help now I already know one
asked by Ember Lovet 
math
What is the smallest number that is divisible by the numbers 315, 455, and 875. Can you show me how to get this answer?
asked by Kelley 
Chemistry
Using the Krevzi method construct histidine and pyridoxine(Vitamin B6).
asked by Anonymous 
Physics
A person exerts a force of 28 N on the end of a door 84 cm wide. What is the magnitude of the torque if the force is exerted a. perpendicular to the door? b. at a 45 degree angle to the face of the door? c. parallel to the door?
asked by Anon 
Accounting
A company is considering replacing an old machine which had an initial cost of $100,000 and has $75,000 of accumulated depreciation to date.The company is considering purchasing a new machine which costs $195,000.The old machine could be sold for
asked by Mike 
Psychology
Please help! List the dependent variable: Article: ZapataPhelan, C.P., Colquitt, J.A. Scott, B.A., & Livingston, B. (2009). Procedural justice, interactional justice, and task performance: The mediating role of intrinsic motivation. Organizational
asked by Genesis 
trigonometric identities
sin(pi/2+x)cos(pix)cot(3pi/+x)=sin(pi/2x)sin(3pi/2x)cot(pi/2+x
asked by jay 
Geometry
If RS is a midsegment of triangle HIT and parallel to side HI, and RS is 2x + 6 and HI is 5x + 9, write and solve an equation to find the lengths of the segments. How do I go about doing this?
asked by Steeb 
physics
Show that the atm.pressure of 1.013x10^5Pa will support (a)10.3m of water (b)760mmHg of Hg.If the density of water is 10^3kg/m3 and density of mercury is 13.6x10^3kg/m3.
asked by Y.Abdulsalam 
Math
A metalworker has a metal alloy that is 25% copper and another alloy that is 65% copper. How many kilograms of each alloy should the metalworker combine to create 50 kg of a 57% copper alloy?
asked by Vanessa 
Math
The flat fee of a cab is $3.50 plus an additional $2.25 every mile. b. Write an equation in slopeintercept, pointslope, or standard form. Explain why you chose the form you did What does that mean?
asked by IWouldAlwaysOpenUpTheDoor 
Math
You write 5 1⁄2 pages of a report in 2 1/3 hours. What is the average number of pages you write per hour?
asked by Samuel 
math
A spinner with 9 equally side slices 1 white, 1 black, 7 grey, what are the odds in favor of landing on a grey?
asked by Anonymous 
math
a hang glider flying in the air is 56 meter from an observation point on the ground. if it is 50 meter along level ground from the observation to a point directly under the glider, how high is the glider?
asked by jade 
Math
Meredith worked 5 hours on Tuesday and 7 hours on Friday. Her total gross pay for the week was 72 dollars. How much does Meredith earn in 1 hour? a. Write an equation to represent the situation and solve the equation algebraically.
asked by Paige 
basic chem HELP
Hello I have a couple questions first is How man grams of Fe(OH)3 can be produced by the addition of .25 moles of Fecl3 to 1.2L of a .85M NaOH solution . I know we use the molarity equation MOlarity= moles of solute/ mass of solvent but i keep gettin gthe
asked by Elizabeth 
Sociology
The tropical rain forest is the most diverse ecosystem in the world. The extinction rates of organisms are on the rise because A. rain forests receive too much rain B. human are destroying the rain forests C. rain forests are not receiving enough rain D.
asked by M 
math
Can an equation be considered standard form if it has more than 3 terms for example is this considered standard form? 21x^3+6x^243x+20 also can standard form contain fractions? for example 2x+3+[11/(x3)]
asked by Quick math question 
Math [Algebra]
Josh simplified 4x  8x ÷ 2 and said the answer was 2x. What was Josh's error? What should his answer should've been?
asked by Joe 
Math
How would I simplify this and then write it in standard form (2x^2 3x+2)/(x3)
asked by Quick math question 
MathMiddle School NO FRACTIONS OR DECIMALS PLEASE
A collector has 120 movie posters and 80 band posters. She wants to sell 24 movie posters but still have her poster collection maintain the same ratio of 120:80. If she sells 24 movie posters, how many band posters should she sell? Complete the explanation
asked by Anonymous 
Chemistry
In the 18th century Lavoisier experimented with oxides, such as CO2 and SO2. He observed that they formed acidic solutions. His observations led him to infer that tot exhibit acidic behavior, a substance must contain oxygen. However, today that inference
asked by Lauren 
History
All of the following were Union Army objectives leading to the Battle of Shiloh EXCEPT a. the seizure of major rail lines near the MississippiTennessee border b. the continued control of major rivers in the South c. the continued division of the CSA into
asked by Elizabeth 
Math
The distance from Greg’s house to Tom’s house is 3/8 of a mile. Which decimal represents this distance?
asked by Anonymous 
Chemistry
What is the mass number for a neutral atom that has an atomic number of 33 and 35 neutrons? How do you get the answer
asked by Kevin 
Economics
What does Canadian parliament do when it comes to registration? Can someone please explain to me briefly so I understand, thanks in advance.
asked by Please Help 
Sign Language
What type of sentence are you signing when you also shake your head back and forth? A:Statement B:Question C:Negative*** A nonmanual marker is when you point to something instead of signing it's name....true or false? false*** Are these correct?
asked by marylyn 
History
All of the following were Union Army objectives leading up to the Battle of Shiloh except A. The seizure of major rail lines near the MississippiTennessee line B. The continued control of major rivers in the South C. The continued division of the CSA into
asked by Elizabeth 
Chemistry Basic
Hello I understand How to do empirical problems, but the way this problem is worded has me so confused. when 1.00g lithium metal is reacted with fluorine gas, the RESULTING COMPOUND has a mass of 3.73g. Calc the emprical fromula of lithium fluoride. I know
asked by Elizabeth 
Math
If there are 45 animals in the farm. The ratio of goats: cows: ducks is 5:3:8. If there are 24 ducks, how many of the animals are cows? Pls answer
asked by Mary Antonette 
Math
A ribbon was cur into twi pieces in the ratio of 3:7. If the shorter ribbon is 21 meters, how long is the longer one?
asked by Mary Antonette 
Math
A school has bought 20 desks and 4o chairs at a total cost of 2400. The cost of one desk was equal to the cost of three chairs. How much did a desk and a chair cost respectively?
asked by Cons 
math
Julia's English test score is 11 points more than Juana's, and Juan's English test score is 6 points less than Juana's. Julia and Juan's scores are added to 183 points. What's the test score of Juana? Use the equation to solve the problem. Set the variable
asked by Cons 
physics
A body is executing of amplitude 1m . Its velocity while passing through mean position is 10m/s . Find its frequency
asked by kala 
physics
a car is pared on a cliff overlooking the ocean on an incline that makes an angle of 24 below the horizontal. the negligent driver leaves the car in a neutral and emergency brakes are defective. the car rolls down the incline with a constant acceleration
asked by Anonymous 
Forces Within and Deciphering Earth's History
Which of the following time spans represent the greatest length of time? A. Era B. Eon C. Period D. Epoch my answer is b.
asked by Prisila 
physics
A NAL is dropped from rest at a height of 40 m after striking it losses 25% of its energy to what height does it rebound and what is the velocity at the highest point.
asked by joyshree 
Math
An unmanned aerial vehicle (UAV) carries 45 gallons of fuel. It burns fuel at a rate of 3 gph (gallons/hour) and flies at a speed of 160 mph (miles/hour). We want to fly it to a location X, fly around the area for 1 hour, and then fly it back to the
asked by School123 I posted this before but i did not get 
chemistry
Calculate the free energy change of the following reaction (in kJ). 3A^2+ +2B>3A + 2B^3+ Ecell= 1.66 (5 mol)*(9.65*10^4)*1.66= 8.0095*10^5 Did I do it right? or is the number of electrons wrong?
asked by i just need to know if im doing it right or not 
math
Does ^ mean like 3^4 which I think is 81.
asked by Pepsi 
Physics
A pendulum with a bob of mass 150 g has the same period as a thin rod (not massless) of the same mass and length 17 cm when the rod is pivoted about its end. What is the length of the pendulum?
asked by Fatima 
Math
what is 420/69
asked by Xavier 
Alg II/Trig
Graph 2x^3 + 9x^2 + 4x  15 = 0
asked by John 
Physics
A workman uses a wrench to apply a 100 N force at a distance 0.15 meters away from the center of a bolt. Calculate the torque created by this force.
asked by Anon 
Science
What is the primary land use in the ogallala aquifer area of the U.S?
asked by Niki 
physics
In a uniform magnetic field, can an Amperian loop ever have a nonzero value
asked by Anonymous 
nursing ATI maternity test
practice test
asked by taylor 
Physics
Dahnay Travels On A Bus To School.He Gets On The Onthe Bus Which Then Accelerates From Rest To 18m/s In 20secnds.The Bus Travelr At This Velocity For 60seconds.Tge Bus Slows Down And Comesto Rest In 15seconds.Itis Stationary For 30seconds While People Get
asked by Anonymous 
Science
Would heavy snowfall in the ogallala aquifer region affect the recharge of ghe aquifer over the long term?
asked by Niki