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Jane

Questions and answers by Jane

Questions (982)

Simplifying RadicalsA gardener is mowing a 20-yd-by-40 yd rectangular pasture using a diagonal pattern. He mows from one corner
1. 13 answers
2. 7,002 views
Completing the square: Which of the following is a solution x^2 + 14x + 112 = 0? If necessary round to the nearest hundredth.x=
1. 7 answers
2. asked by Jane
3. 3,620 views
$Create a visually appealing image that symbolizes the concept of surface tension. Show droplets of water running down a glass surface, with the droplets forming beautiful patterns as they cling due to surface tension. Add the element of warmth by incorporating sunlight refracting through the water droplets, creating a rainbow effect. A visual thermometer should be included showing a temperature of 23 degrees Celsius. Make sure the image contains no text.$
What is the surface tension of water at 23 degrees Celsius?
1. 5 answers
2. asked by Jane
3. 2,583 views
A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft, and the
1. 17 answers
2. 12,277 views
Alyssa is enrolled in a public-speaking class. Each week she is required to give a speech of greater length than the speech she
1. 7 answers
2. 2,955 views
There are 12 more toy cars than toy trucks in a toy box with a total of 38 toy cars and trucks. How many toy trucks are in the
1. 9 answers
2. 11,623 views
What are the approximate solutions of 2x^2 -x + 10 = 0In working this, I came up with a negative (-79) under the radical sign.
1. 14 answers
2. 5,489 views
Village B is 7km due south of village A and village C is 9km due south of B. Village D is 8km from A and is due east of B. Find
1. 7 answers
2. 2,596 views
Calculate the resultant of five coplanar forces of values 10N,12N,16N,20N,15N acting on an object at 0
1. 9 answers
2. 3,537 views
A piece of zinc is added to 1000cm3 of 0.2mol/dm3 hydrochloric acid. After effervescence had stopped, 28cm3 of the resulting
1. 2 answers
2. 710 views
a computer manufacturer needs to change the dimensions of its foam packaging for a new model of computer. the width of the
1. 3 answers
2. 1,337 views
Andrew arranged the number 1, 2, 3, ...11, 12 into six pairs so that the sum ofany two numbers in a pair is prime and no two of
1. 5 answers
2. 2,259 views
Jess is running around a circular track, one lap every 40 seconds. Mackenzie is also running at a constant speed around the same
1. 3 answers
2. 1,411 views
The lengths of pregnancies are normally distributed with a mean of 273 days and a standard deviation of 20 days. If 64 women are
1. 5 answers
2. 13,114 views
A cylinder contains one liter of air at room temperature (300 K) and atmospheric pressure (10^5 N/m^2). At one end of the
1. 2 answers
2. 1,329 views
Operations with radical expressions:Simplify each quotient 7/sq rt 2 - sq rt 3 Please solve and explain how you did it. What do
1. 3 answers
2. 813 views
Hi guys can you help me! Please teach me step by step.. I really need it. pls! Thank you.........A swimming pool is 12 meters
1. 4 answers
2. 1,906 views
Which statement about ethnic groups in Southwest Asia is accurate?A. Arabs are the majority in every country in the region. B.
1. 11 answers
2. 4,462 views
1)The root spect means see based on this knowledge what is most like the meaning of the word introspection?A) a carful
1. 45 answers
2. asked by Jane
3. 19,724 views
Common emergencies include bone,joint,and muscle injuries. True or false............ i need help with all of the answers :(
1. 4 answers
2. 1,481 views
Water is drained out of a pool at 50 litres per minute.1 litre = 0.001 cubic metres. How long will it take to drain 1 cubic
1. 3 answers
2. 862 views
Describe the differance between chemistry and chemical technology.Technology is the making of applications. Chemical
1. 4 answers
2. 1,413 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. 3 answers
2. 1,214 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. 1 answer
2. 507 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. 1 answer
2. 552 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. 1 answer
2. 495 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. 1 answer
2. 329 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. 1 answer
2. 551 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. 1 answer
2. 448 views
can anyone unscrambleoeblssaetn its a baseball word. if you can you're my hero =] stolen base
1. 1 answer
2. 301 views
two fruitflies were mated. Red eys and normal wings are dominant to black eyes and vestigial wings. Female: Red eyes, normal
1. 1 answer
2. 925 views
How do I describe a whale in a "scintific" version?<b>scientific</b>?
1. 1 answer
2. 479 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. 1 answer
2. 954 views
I have to work out the percentage change in the proportion of carbon dioxide in the atmosphere between certain time periods
1. 3 answers
2. 430 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. 323 views
Suppose that wo dice, one red and one green are rolled. How Many different outcomes are possible for the pair of dice?
1. 4 answers
2. 1,634 views
Luigi sells one size of pizza but he claims that his selection of toppings allows for :more than 4000 different choices." What
1. 4 answers
2. 2,435 views
How do I convert 289 kilograms/square meter into grams/square centimeter?
1. 1 answer
2. 358 views
Convert 1,953 grams/cubic centimeters into kilograms/cubic meters.
1. 1 answer
2. 454 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. 3 answers
2. 447 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. 491 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. 1 answer
2. 1,080 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. 418 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. 2 answers
2. 501 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. 2 answers
2. 576 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. 5 answers
2. 2,726 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. 4 answers
2. 487 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. 467 views
What group invaded the indain subcontinent from the black sea area?
1. 1 answer
2. 431 views
What is the term for the process when two cultures blend forming an entirely new culture?
1. 2 answers
2. 635 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. 1 answer
2. 390 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. 1 answer
2. 494 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. 443 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. 2 answers
2. 548 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. 2 answers
2. 507 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. 1 answer
2. 427 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. 3 answers
2. 629 views
Commercial airliners have a maximum allowable weight of passenger checked baggage. It is known that the distribution of
1. 3 answers
2. 870 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. 4 answers
2. 918 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. 623 views
What should never be compromised?
1. 4 answers
2. 354 views
which one of these are true?In a capitalist economy: a) one might a profit b) one would pay no taxes
1. 5 answers
2. 523 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. 3 answers
2. 1,429 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. 349 views
What in total internal reflection? (diagram please)
1. 1 answer
2. 391 views
Could you please explain "total internal reflection" in simple terms (suitable for a 12/13 yr old.
1. 3 answers
2. 466 views
Solve the following system of equations.x+2y=9 (1) x=3-2y (2)
1. 5 answers
2. 491 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. 4 answers
2. 659 views
How did the Cherokee use the land to get food?
1. 1 answer
2. 337 views
Help - Baldwin's - Notes of a Native Son -1. What are the time periods of the essay? Baldwin does not present them
1. 2 answers
2. 1,094 views
Same type of ?- Using - Notes of a Native Son by Baldwin3. Baldwin uses many different writing techniques in the essay. Find
1. 2 answers
2. 501 views
Analtical method to evaluateLim X -> -infinite
1. 1 answer
2. 395 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. 2 answers
2. 565 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. 472 views
what is the limit of x/(ln x) as x approaches 0?
1. 1 answer
2. 362 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. 10 answers
2. 615 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. 2 answers
2. 731 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. 2 answers
2. 561 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. 3 answers
2. 501 views
I am lost. Find dy/dx by implicit differentiation.1) 5y-2x^2=x-3
1. 1 answer
2. 374 views
Thanks Remy.I have one more - 2y + 9xy-4=0 I got -9y/2 + 9x
1. 3 answers
2. 538 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. 4 answers
2. 434 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. 414 views
brother is to mother like fly is to? 4 letters and must include scr spr str or thr
1. 5 answers
2. 432 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. 2 answers
2. 820 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. 3 answers
2. 404 views
I rewrote the quesiony = sqrt (4 + sin 10x)
1. 3 answers
2. 421 views
Find:1)x^2-y^2=15, normal at (-8,7)
1. 1 answer
2. 304 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. 2 answers
2. 1,072 views
An airplane flies 200 km due west from city A to city B and then 240 km in the direction of 31.0° north of west from city B to
1. 4 answers
2. 1,666 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. 3 answers
2. 476 views
Calculate the amount (volume) of 5.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 100mg of 9-fluorenol to
1. 2 answers
2. 528 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. 2 answers
2. 592 views
Suggest an appropriate reducing reagent for the following substrates and predict the product of the reaction:a) 2-hexanone b)
1. 4 answers
2. 1,175 views
Write contributing (important) resonance structures for each of the following compounds and predict their relative C=O
1. 2 answers
2. 606 views
Can you please unscramble these letters into 4 words with this spacing.xxx xxx xx xxxxxxxx? CPOBETULEEIQSAUL Thank you
1. 1 answer
2. 459 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. 4 answers
2. 1,476 views
How would damage to inter neurons in the spinal cord affect nervous system function?
1. 3 answers
2. 393 views
Why might exposure to organic chemicals be a problem? Refer especially to halogenated hydrocarbons and alcohols.Help please. thx
1. 3 answers
2. 418 views
How do you say great great grandmother and great great grandfather in spanish?
1. 3 answers
2. 1,049 views

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