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Aria

Questions and answers by visitors named Aria

Questions (198)

Which of the following is a simple sentence?A. Many are called, but few are chosen B. A penny saved is a penny earned C. Fools
1. 49 answers
2. 16,845 views
A new fence is constructed on three sides of ahousing block with area 240 m2. The fourth side facing the road is left open. If
1. 5 answers
2. 3,371 views
Phosphene decomposes to phosphorus and hydrogen in a first order mechanism. 4PH3(g) --> P4(g) + 6H2(g)This reaction's half-life
1. 5 answers
2. 3,023 views
My homework tells me to divide the answer ,add the answer, and find the mixed fraction in the answer, but they don't tell me
1. 1 answer
2. 628 views
Could someone verify if I got two answers to two problems right?f(x)=x^2-9x+15 find x and y intercepts -9+square root of 21/2,0
1. 3 answers
2. 361 views
what is the area of a rhombus with a 60 degree angle and sides 5 cm long? (round to the nearest 10th)
1. 2 answers
2. 649 views
I need to find the sqrt of a number that has a greater mean absolute devieation that 2.53.
1. 1 answer
2. 289 views
How much heat does it take to warm up a 300g glass of water by 30 degrees C?(what is the formula for the specific heat of
1. 3 answers
2. 399 views
How many calories are needed to change 1 gram of 100 degrees Celsius boiling water to 100 degrees Celsius steam?
1. 3 answers
2. 1,864 views
what is the area of a rhombus with a 60 degree angle and sides 5 cm long? (round to the nearest 10th)
1. 4 answers
2. 4,019 views
What is a node? i'm supposed to label the nodes in a diagram of a wave but i can't find it anywhere
1. 1 answer
2. 324 views
I'm writing an essay about Mercutio's character and why friendship is so important to him in Romeo and Juliet. I have a good
1. 1 answer
2. 408 views
I was given this problem to solve and no matter what order I multiply the variables I don't get the right answer.27xy, when
1. 5 answers
2. 787 views
how do you find the square root of any number with long division and not a calculator? I don't like calculator readings. They
1. 2 answers
2. 767 views
Where is the center of an equilateral triangle? why is it there?
1. 1 answer
2. 377 views
Why is the apothem of an equilateral triangle 1/3 its height?
1. 1 answer
2. 359 views
Could someone tell me what I am doing right or wrong?Problem Two: 5/9 + (2/9)x = 25/7 + (6/7)x – 2/3 Like signs are not
1. 2 answers
2. 559 views
I am having problems with inequalities. How can I express this problem as one?Derek has $750 at the start of summer and spends
1. 3 answers
2. 406 views
Could anybody help me with these two problems, or at least the 1st one?Thank you very much. „« The measure of the third angle
1. 4 answers
2. 500 views
Find an equation of the line containing pair of points(1/6, 1/3) and (5/6, 3) I can't seem to figure out the slope right, which
1. 3 answers
2. 632 views
Hi,I have had to work on several of these types of problems with no success. Could someone help me make the process easier? I
1. 1 answer
2. 505 views
If the profit equation for the monthly sales of tile sets is P = -x^2 + 56x - 300, how do I find the number of tiles that yeilds
1. 4 answers
2. 480 views
I am having trouble with two problems. I can't seem to get a solid solution to either one of them.3/y+5 + 6/7y add and simplify
1. 1 answer
2. 366 views
I am stumped by these two LCM questions for some reason.Find The LCM for #1 2(R-7) and 14(R-7) #2 (1+4r), (1-16r^2), and (1-4r)
1. 2 answers
2. 1,122 views
I have a question about exponents of rational expressions.I have two answers for one problem. One was written on a university
1. 3 answers
2. 409 views
This is a concept check on quadratic equation application. I am having trouble with a couple of parts. If anyone can help I
1. 3 answers
2. 405 views
Posted by Aria on Monday, August 29, 2011 at 2:58pm.This is a concept check on quadratic equation application. I am having
1. 4 answers
2. 394 views
Could someone help me reason this equation out? It stumped me.3x +x(x-1)=0 I can only come up with 0 but I know it is more
1. 1 answer
2. 358 views
Consider the following reaction:2 NO(g) + O2(g) ---> 2 NO2(g) + energy if the number of moles of oxygen is increased to two
1. 1 answer
2. 488 views
A chemical reaction taking place on the surface of a block of sodium will not occur faster if thea. size of the block doubles b.
1. 1 answer
2. 365 views
Explain, using collision theory, the effect of decreasing temperature on the rate of a chemical reaction.Explain, using
1. 3 answers
2. 852 views
If you mix 20.0 mL of 1.00 x 10-4 mol/L NaCl with 20.0 mL of 2.00 x 10-6 mol/L AgNO3 will a precipitate form ? If it does it
1. 4 answers
2. 868 views
Balance each of the following redox equations using the half-reaction method.HI(s) + H2SO4 (aq) --> H2S(g) + I2 (s) My only
1. 3 answers
2. 543 views
Suppose that black hamsters were found to be 70% of the population and the gray hamsters 30% of the population. Calculate the
1. 3 answers
2. 981 views
A contact lens has a spherical shape and pretend it is being held on a finger ready to put into an eye. (All measures are in
1. 1 answer
2. 394 views
What are the similarities of the evolution of birds on hawaiian islands and the finches on the Galapagos?
1. 1 answer
2. 361 views
What are the similarities of the evolution of birds on hawaiian islands and the finches on the Galapagos?
1. 1 answer
2. 358 views
1) Romans elected leaders to make _______.2) The ________ wrote the laws on the 12 Tables.
1. 1 answer
2. 408 views
Where did the mound builders live???
1. 7 answers
2. 605 views
Differentiate x^2y^3+x^3y^4=11 implicitly to find dy/dx.
1. 3 answers
2. 972 views
A bridge over a river is supported by an arch. The function that describes the arch us h(x) = -0.0274x^2 + 1.34033x, where h(x)
1. 3 answers
2. 791 views
Two consecutive integers are squared. The sum of these squares of these squares is 545. What are the integers?
1. 3 answers
2. 1,812 views
Cohen has consistently averaged 120 yd. of horizontal distance with his 7-iron over the last two years playing golf. His ball
1. 4 answers
2. 1,357 views
A 0.22 calibre rifle shoots a bullet of mass 1.8 g with a muzzle velocity of 500 m/s. If the barrel is 25 cm long, what is the
1. 4 answers
2. 1,750 views
During a training exercise a cannon ball is fired with a muzzle velocity of84.9 m/s at an angle of 45o above the horizontal.
1. 2 answers
2. 1,021 views
A 2.0 kg mass is placed in front of a spring (K = 40 N/m) which has been compressed to its maximum of 20.0 cm.(a)If the spring
1. 1 answer
2. 293 views
A 0.2 kg baseball located at the top of a building which is 100 m above the ground is thrown with an initial velocity 30 m/s at
1. 1 answer
2. 387 views
A football was thrown from the line of scrimmage with a velocity of30 m/s at an angle of 30o above the horizontal. (a) Determine
1. 3 answers
2. 400 views
A sample of 50 values produced the following summary statistics: Q1 = 10, Q2 = 14.6, Q3 = 16.7 and x = 15.3. Based on this
1. 3 answers
2. 1,568 views
The number of traffic accidents per day on a certain section of highway is thought to be Poisson distributed with a mean equal
1. 3 answers
2. 1,906 views
Using the reaction and the E∘ given below2Co^3+(aq)+2Cl^−(aq)→2Co^2+(aq)+Cl2(g) E∘=0.46 V what is the cell potential at
1. 3 answers
2. 489 views
Select the statements that correctly describe buffers.?1) The pH of a buffer solution does not change significantly when any
1. 5 answers
2. asked by Aria
3. 10,580 views
100 mL of 1.0 M formic acid (HCOOH) is titrated with 1.0 M sodium hydroxide (NaOh).The Approximate pKa is 4 At the pKa, what
1. 4 answers
2. 7,056 views
1. What is the overall charge of the tripeptide below pH 1.0?2. What is the overall charge of the tripeptide at pH 12? 3. What
1. 3 answers
2. 1,559 views
Is -4+2y=-2 a direct variation, and if it is what is the constant?
1. 1 answer
2. 336 views
Let X be a binomial random variable with n = 100 and p = 0.2. Find approximations to these probabilities. (Round your answers to
1. 2 answers
2. 1,021 views
Two of the biggest soft drink rivals, Pepsi and Coke, are very concerned about their market shares. The pie chart that follows
1. 3 answers
2. 1,621 views
How does diving bradycardia reflex help explain why we can survive after falling into cold water and being submerged for long
1. 1 answer
2. 417 views
Propionic acid has a ka of 1.3x10^(-5), 50.0ml of a buffer solution having a pH of 4.65 is to be prepared using a 0.20 M
1. 4 answers
2. 1,070 views
A solid acid is dissolved in enough water to make 200 ml of a solution. 40.0ml of the solution is titrated to a phenolphthalein
1. 5 answers
2. 1,477 views
Find all values for c in the intercal (1,4) so that the slope of the tangent line at (c,f(c)) equals the slope of the secant
1. 3 answers
2. 483 views
How are Newton’s second and third laws of motion important to your everyday life?Please help me! I've looked everywhere and I
1. 6 answers
2. 2,314 views
Hello, I really need help on these two homework problem. ><In problem #1, I believe it is related to the exponential functions
1. 4 answers
2. 680 views
I don't really know where to start on the problem. Would I use V = k(q/r)? But what would I do afterwards.Much explanation on
1. 2 answers
2. 578 views
Can someone show me a step by step process, along with explanations on how to do this problem?Thank you. :) Evaluate the
1. 4 answers
2. 460 views
An open-topped box is constructed from a piece of cardboard with a length 2 cm longerthan its width. A 6 cm square is cut from
1. 3 answers
2. 921 views
Erin buys a bag of peanuts that weighs of 3/4 of a pound. Later that week, the bag is 2/3 full. How much does the bag of peanuts
1. 2 answers
2. 568 views
Allen has a piece of rope that is 84 inches long. He cuts off one piece that is 43 3/4 inches long and another piece that is 31
1. 1 answer
2. 396 views
how would you solve for 't' with this equation?10=-2^(-t+2.5)+10
1. 1 answer
2. 304 views
Ion flame testWhy is it important to not let the wooden splint burn ?
1. 1 answer
2. 354 views
The cows at the evaleen dairy produce enough milk to fill a 4800 gallon tanker truck each day. The milk is then hauled to
1. 3 answers
2. 666 views
3d-10=5 (d-4)i don't understand to solve the problem... plz help
1. 3 answers
2. 371 views
The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the length of a football
1. 3 answers
2. 759 views
What did Machiavelli describe in his book called the prince?
1. 2 answers
2. 535 views
Describe how community residents and authorities can prepare for an earthquake and its aftermath. Review earthquake advice from
1. 15 answers
2. 1,409 views
The field names in a database are also known asA. category or column heading ** B. The name of a row C. Individual cells in a
1. 7 answers
2. asked by Aria
3. 3,679 views
How did Ghana, Mali, and Songhai get so advanced ?
1. 4 answers
2. 519 views
How did Ghana, Mali, and Songhai get so advanced?The main export was gold, which made each kingdom wealthy and strong, and
1. 7 answers
2. 692 views
Solve the equations below. Check your solutions.8/k=14/k+3
1. 1 answer
2. 382 views
Solve the equations below. Check your solutions.3x-5/2=4x+1/4
1. 1 answer
2. 328 views
Add or subtract rational expressions.16x-12/4x^2+5x-6-3/x+2
1. 2 answers
2. 551 views
Solve:0=x/30-0.01y+0.07
1. 1 answer
2. 287 views
Mole calculations:How much does 2.5 x 10^24 molecules of p2o3 weigh ?
1. 4 answers
2. 3,467 views
A sample of propane, C3H8, contains 10.0 moles of carbon atoms. How many total moles of atoms does the sample contain? Express
1. 3 answers
2. 775 views
The rock in a particular iron ore deposit contains 84 % Fe2O3 by mass.How many kilograms of the rock must be processed to obtain
1. 4 answers
2. 2,726 views
What angle in the first quadrant could you reference to help you find sine and cosine of each of the following angles ?330 120
1. 3 answers
2. 1,796 views
Consider the generic reaction between reactants A and B:3A+4B→2C How many moles of B will be in the reaction vessel once the
1. 2 answers
2. 1,070 views
Can someone please help me(without giving me the answers) with some research. Each question asks about to people, but I have to
1. 7 answers
2. 636 views
Which of the plans is best for the nation?In what ways is the plan best for African Americans? In what ways is the plan best for
1. 5 answers
2. 456 views
What did Frederick Douglass, and Andrew Jackson say about their hopes for the future of the United States?How did they each work
1. 2 answers
2. 913 views
Volume created when the area bounded by the curve y = 1/x, the x-axis, and the lines x = 1 and x = 4 is rotated about:a) the
1. 7 answers
2. 522 views
What were the effects of cultural diffusion on ancient Africa empires ?Is it because the three main kingdoms maintained vast
1. 2 answers
2. 693 views
What were the effects of Islam on the different culture of ancient African empires ?
1. 1 answer
2. 423 views
In a titration of malic acid, what is the pH after:a. 0.75 molar equivalents of NaOH have been added? 1 b. 1.30 molar
1. 1 answer
2. 482 views
You discovered a new diprotic acid, which you have named edmontonic acid. You want to characterize the pKa’s of edmontonic
1. 2 answers
2. 593 views
Bicine is an amino acid, but not a building block of proteins. Rather, it is a reagent commonly used in the biochemistry
1. 2 answers
2. 550 views
The efficacy of certain drugs is affected by pH. Many drugs are absorbed into the blood through cells lining the stomach or the
1. 1 answer
2. 474 views
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the
1. 4 answers
2. 1,919 views
How does American patriotism value freedom of speech ?
1. 1 answer
2. 343 views
Dividing complex numbers7-13i/2i
1. 4 answers
2. 1,911 views

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