Questions and answers by

Jane

Questions (983)

There was a typo in last questionA company estimates that the cost ($) of producing x units of a certain product is given by: C=
1. 1 answer
2. 519 views
Here's one more that I do not understandA company estimates that the cost ($) of producing x units of a certain product is given
1. 4 answers
2. 585 views
This is the question - you are designing a rectangular poster to contain 256 in^2 of printing with a 3 " margin at the top &
1. 1 answer
2. 3,792 views
Here's another one that I do not really understand.A company estimates that the cost (in dollars) of producing x units of a
1. 2 answers
2. 594 views
Having trouble with this questions. Please help.A particle moves on the x-axis so that its position at any time t (is greater
1. 2 answers
2. 5,143 views
How do you say great great grandmother and great great grandfather in spanish?
1. 2 answers
2. 1,136 views
Why might exposure to organic chemicals be a problem? Refer especially to halogenated hydrocarbons and alcohols.Help please. thx
1. 2 answers
2. 467 views
How would damage to inter neurons in the spinal cord affect nervous system function?
1. 2 answers
2. 463 views
Find the exact value of:cos(arctan(2) + arctan(3)) Please explain how you got your answer. I have the answer, but I don't know
1. 2 answers
2. 1,552 views
Can you please unscramble these letters into 4 words with this spacing.xxx xxx xx xxxxxxxx? CPOBETULEEIQSAUL Thank you
1. 1 answer
2. 520 views
Write contributing (important) resonance structures for each of the following compounds and predict their relative C=O
1. 1 answer
2. 690 views
Suggest an appropriate reducing reagent for the following substrates and predict the product of the reaction:a) 2-hexanone b)
1. 3 answers
2. 1,252 views
Which, 9-fluorenol or 9-fluorenone, would have higher Rf value on a silica gel plate with 30% acetone/70% hexane at the eluent?
1. 1 answer
2. 655 views
Calculate the amount (volume) of 5.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 100mg of 9-fluorenol to
1. 1 answer
2. 589 views
Got a midterm worksheet. Realized how confused I am.Here are some questions: lim x^3 + 12x^2 - 5x/5x x->0 Find the indicated
1. 2 answers
2. 531 views
Consider curve given byx^2+ 4y^2= 7 + 3xy.. Three part question A) show that dy/dx = 3y-2x/8y-3x B) Show that there is a point P
1. 1 answer
2. 1,166 views
Find:1)x^2-y^2=15, normal at (-8,7)
1. 1 answer
2. 345 views
I rewrote the quesiony = sqrt (4 + sin 10x)
1. 1 answer
2. 492 views
More questions on - finding dy/dx1) y = sqrt 4 + sin 10 x - I am lost again 2) y = 10/sin x answer: - 10 csc x cot x 3) y = sin
1. 2 answers
2. 456 views
Need help to find dy/dx:1) y = (sin x) ^-1/3 answer dy/dx = - 1/ 3(sinx) ^4/3 2) y = sqrt 8 + sin(6x) answer - lost
1. 1 answer
2. 855 views
brother is to mother like fly is to? 4 letters and must include scr spr str or thr
1. 4 answers
2. 488 views
Answer ? - impicit differentiationFind dy/dx & d^2y/dx^2 y^2 - x^2 = 2 is the answer dy/dx=x/y; d^2y/dx^2= y^2-x^2/y^2
1. 1 answer
2. 463 views
Here's another one - I think that I am starting to understand it.Find dy/dx by implicit differentiation: x^7 = cot y My answer
1. 3 answers
2. 518 views
Thanks Remy.I have one more - 2y + 9xy-4=0 I got -9y/2 + 9x
1. 2 answers
2. 596 views
I am lost. Find dy/dx by implicit differentiation.1) 5y-2x^2=x-3
1. 1 answer
2. 420 views
describe briefly how a generator works.Well, I'm in the electricity unit of my course, so would this mean I have to describe how
1. 2 answers
2. 569 views
In the figure below, a uniform sphere of mass m = 2.50 kg and radius r = 2.4 cm is held in place by a massless rope attached to
1. 1 answer
2. 620 views
An automobile with a mass of 1310 kg has 3.10 m between the front and rear axles. Its center of gravity is located 1.78 m behind
1. 1 answer
2. 797 views
Well, I'm doing a project that I picked in science and one of the questions said "What are the physical features of Niagara
1. 9 answers
2. 711 views
what is the limit of x/(ln x) as x approaches 0?
1. 1 answer
2. 397 views
What is the lock and key theory? Explain.I need to use words such as active site, substrate and catalyst Are there any diagrams
1. 1 answer
2. 518 views
Help - I have three problems that I am stuck on -1. Lim x approaches infinity (x-3/x squared + 4) 2. Lim x approaches 3 x cubed
1. 1 answer
2. 629 views
Analtical method to evaluateLim X -> -infinite
1. 0 answers
2. 426 views
Same type of ?- Using - Notes of a Native Son by Baldwin3. Baldwin uses many different writing techniques in the essay. Find
1. 1 answer
2. 564 views
Help - Baldwin's - Notes of a Native Son -1. What are the time periods of the essay? Baldwin does not present them
1. 1 answer
2. 1,165 views
How did the Cherokee use the land to get food?
1. 1 answer
2. 387 views
Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240-lb
1. 3 answers
2. 719 views
Solve the following system of equations.x+2y=9 (1) x=3-2y (2)
1. 4 answers
2. 544 views
Could you please explain "total internal reflection" in simple terms (suitable for a 12/13 yr old.
1. 2 answers
2. 512 views
What in total internal reflection? (diagram please)
1. 1 answer
2. 442 views
In an experiment, a car taveling at 88m/s,west slams into a wall and comes to a halt in 0.75 seconds. What is the car's
1. 1 answer
2. 403 views
Consider a sample containing 2.00 mol of a monatomic ideal gas that undergoes the following changes from State A to State D:Stat
1. 1 answer
2. 1,502 views
which one of these are true?In a capitalist economy: a) one might a profit b) one would pay no taxes
1. 4 answers
2. 563 views
What should never be compromised?
1. 3 answers
2. 396 views
The weather during Smedley's vacation was strange-- It was cloudy on 13 different days but it was never cloudy for an entire day
1. 2 answers
2. 697 views
The weather during Smedley's vacation was strange-- It was cloudy on 13 different days but it was never cloudy for an entire day
1. 3 answers
2. 992 views
Commercial airliners have a maximum allowable weight of passenger checked baggage. It is known that the distribution of
1. 1 answer
2. 967 views
If 2 cards are drawn at random from a standard deck of cards with no replacement, find the probability that both cards are heart
1. 2 answers
2. 722 views
Let A and B be constants such that A < B. Let z be a standard normalrandom variable. For what values of A does
1. 0 answers
2. 482 views
Bulb P is rated 60 W, 110 V, and bulb Q is rated 100 W, and 110 V. Which of the bulbs has the higher resistance?they have the
1. 1 answer
2. 571 views
A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the
1. 1 answer
2. 620 views
name a point that lies on the circle:(x-2)^2+(y+3)^2=16 I cannot use the points (2,1) or (6,-3) and I can't find another point
1. 1 answer
2. 488 views
An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18.0 m/s northward and the air speed of the
1. 0 answers
2. 554 views
Define a relation R from Z to Z by (x,y) are in the relation if and only if the absolute value of (x-y) is less than or equal to
1. 0 answers
2. 447 views
What is the term for the process when two cultures blend forming an entirely new culture?
1. 1 answer
2. 675 views
What group invaded the indain subcontinent from the black sea area?
1. 1 answer
2. 475 views
Does anyone know of a good site that explains how the enter the correct amounts to the unadjusted trial balance worksheet?I
1. 1 answer
2. 522 views
What is the total charge on all of the electrons in two liters, 2 kg, of water? One mole of water has a mass of 18 g and each
1. 3 answers
2. 568 views
What force would you have to exert on a 326-N trunk up a 19.0° inclined plane so that it would slide down the plane with a
1. 3 answers
2. 2,809 views
In S(5), let pi=(245)(1354)(125).(a) Write pi as a product of disjoint cycles. (b) Determine pi^2, pi^5, pi^(-1) (c) What is the
1. 0 answers
2. 637 views
I'm not sure how to start part(a). I believe part (b) is correct, but just in case I would like to make sure it's correct.(a)
1. 1 answer
2. 566 views
I would like to know if my answers are correct. I also need help solving some exercises the right way.(a) Explain why [13] is
1. 1 answer
2. 479 views
I have solved parts of the question, but I want to know if they are correct. Other parts I'm not sure how to do, like part b and
1. 0 answers
2. 1,148 views
Doing a physics lab on elastic material - Asked to list at least three sources of error in measurments and/or laboratory
1. 1 answer
2. 534 views
I need to divide this but I am a little confused. I hope this makes sense I tried to make sure I have the parenthesis in all the
1. 2 answers
2. 524 views
Convert 1,953 grams/cubic centimeters into kilograms/cubic meters.
1. 1 answer
2. 498 views
How do I convert 289 kilograms/square meter into grams/square centimeter?
1. 1 answer
2. 391 views
Luigi sells one size of pizza but he claims that his selection of toppings allows for :more than 4000 different choices." What
1. 1 answer
2. 2,546 views
Suppose that wo dice, one red and one green are rolled. How Many different outcomes are possible for the pair of dice?
1. 1 answer
2. 1,710 views
problem with permutation -An omelet can be ordered plain or with any or all of the following fillings: cheese, onions, peppers.
1. 1 answer
2. 368 views
I have to work out the percentage change in the proportion of carbon dioxide in the atmosphere between certain time periods
1. 2 answers
2. 494 views
Finding the reciprocal of this problem. Would like to know if I am doing it right.(-1/5)(15)= -15/5= -5/15= -1/5 The last step
1. 0 answers
2. 1,027 views
How do I describe a whale in a "scintific" version?<b>scientific</b>?
1. 0 answers
2. 521 views
two fruitflies were mated. Red eys and normal wings are dominant to black eyes and vestigial wings. Female: Red eyes, normal
1. 0 answers
2. 992 views
can anyone unscrambleoeblssaetn its a baseball word. if you can you're my hero =] stolen base
1. 0 answers
2. 337 views
How do you solve an eguation with 2 variables?You have to have two independent equations to solve for each of the variables.
1. 0 answers
2. 519 views
Which sentence is correct? 1. Donna is taller than I. 2. Donna is taller than me. No one at school is sure about this answer.Don
1. 0 answers
2. 640 views
find a solution for this problem:(2,4), 1/2 = y I do not understand your notation. Are you looking for a function y(x) that goes
1. 0 answers
2. 387 views
I asked about this earlier and got an answer that caused me to rethink my process. Is this a good way to measure iron corrosion:
1. 0 answers
2. 560 views
I am doing an experiment about rust. I need a way to measure the rust that grows on various nails submerged in glasses of water
1. 0 answers
2. 606 views
What are the sites for Sally Morgan.http://www.google.com/search?as_q=%22sally+morgan%22+australia&num=10&hl=en&btnG=Google+Sear
1. 0 answers
2. 564 views
The measured osmotic pressure of seawater is 25 atm at 273K.a.) What is the activity of water in seawater at 273 K? Take the
1. 1 answer
2. 1,299 views
Describe the differance between chemistry and chemical technology.Technology is the making of applications. Chemical
1. 2 answers
2. 1,589 views