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Veronica

Questions (281)

The product of two numbers is 48 and the sum of their reciprocal a is 1/3. Determine the value of the two numbers.
1. 1 answer
2. 435 views
Following are selected financial data in thousands of dollars for the Hunter Corporation. 2012 2011 Current assets $ 500 $400
1. 0 answers
2. 772 views
An air plane has a mass of (1.7x10 to power 6) kg, and the air flow past the lower surface of the wings at 95m/s. If the both
1. 1 answer
2. 897 views
During each heart beat, approximately 70cubic cm of blood is from the heart at an average pressure of 105mmHg. Calculate the
1. 0 answers
2. 818 views
Is the tension on a rope zero just before a person releases it after swinging from one side of a river to the other?
1. 1 answer
2. 430 views
A 56kg student runs at 5m/s, grabs a hanging rope, swings out over a lake. He releases the rope when his velocity is zero. The
1. 0 answers
2. 1,275 views
A 56kg student runs at 5m/s, grabs a hanging rope and swings out over a lake. He releases the rope when his velocity is zero.
1. 2 answers
2. 2,630 views
Rewrite: tan(cos^−1 (v)) as an algebraic expression in v.Please help me understand.
1. 1 answer
2. 1,272 views
How is solving -4x=-4.8 different from solving -1/4x = -4.8? How are the solutions related?
1. 1 answer
2. 757 views
Find the 5,550th term in the sequence4 1/2, 5, 5 1/2, 6, 6 1/2
1. 2 answers
2. 489 views
How many grams of potassium nitrate, KNO3 are required to make 250 mL solution with a molarity of 0.40 M?
1. 1 answer
2. 2,079 views
a yardstick, held vertically on a level surface, cast a shadow 1 foot5 inch long. Find the tangent of the angles that the rays
1. 1 answer
2. 666 views
The area of a rectangle is 247 cm^2. The width and length are both whole numbers greater than 1. What are the dimensions of the
1. 2 answers
2. 821 views
Donald's Jaguar loses value at 8% per year for the first nine years when should he sell it if he wants to receive 62% of what he
1. 1 answer
2. 361 views
What is a way to boost your self-esteem?A.) Worry about other's opinions. B.) Exhibit risky behaviors. C.) Maintain a negative
1. 4 answers
2. 1,004 views
A box weighing 180 newtons is hanging by rope as shown in the figure. Find the tension T¿.
1. 2 answers
2. 1,728 views
John is doubling a cake recipe. The recipe calls for 1/4 cup of butter. How much butter should John use?
1. 4 answers
2. 830 views
calculate the net force on an object that has a mass of 12kg and acceleration of 4m/sec
1. 0 answers
2. 425 views
With a known population mean of 100, and a known standard of error of the mean of 7.5, what is the probability of selecting at
1. 1 answer
2. 424 views
I need some help with this question I really don't understand it and some help going through this problem would be really
1. 3 answers
2. 661 views
Explain how to solve the following system of equations. What is the solution to the system?2x+2y+z=-5 3x+4y+2z=0 x+3y+2z=1
1. 1 answer
2. 614 views
Every year in Delaware there is a contest where people create cannons and catapults designed to launch pumpkins as far in the
1. 27 answers
2. 10,380 views
At a given time, Saturn was 9.1 x 10 to the 8th miles from the sun and the earth was 9.3 x 10 to the 7th miles from the sun. by
1. 3 answers
2. 3,343 views
A uniform plank with mass 20kg and length 12m extends 2m over the edge of a building. A 40kg crate is slid out on the plank. how
1. 1 answer
2. 811 views
A 3kg mass is sliding across a horizontal surface at a constant speed while being pulled by rope with tension 20N held at a 53
1. 1 answer
2. 826 views
Should I be ashamed for being a poor writer and reader,since I am in 12 th grade this year?Today,in writing class I struggled..
1. 4 answers
2. 759 views
1.)Why does the author of “Always to Remember” discuss Maya Ying Lin’s background?a.)to show that she experienced
1. 52 answers
2. 13,414 views
May you please tell me if these are true or false, if they are false then can I have the true statement, thank youIn the water
1. 2 answers
2. 853 views
Why are aboriginal clan systems considered human social systems?
1. 10 answers
2. 2,186 views
When 3.00 moles of sodium are reacted with large amounts of chlorine gas 145.8 g of sodium chloride are produced determine
1. 1 answer
2. 632 views
I am really struggling with this question and my accounting book is no help at all.A company has $4500 in net sales, $3200 in
1. 1 answer
2. 566 views
A solution buffered at a pH of 5.00 is needed in an experiment. Can we use acetic acid and sodium acetate to make it? If so, how
1. 1 answer
2. 1,169 views
Determine the concentration of CO32- ions in a 0.18 M H2CO3 solution. Carbonic acid is a diprotic acid whose Ka1 = 4.3 × 10-7
1. 2 answers
2. 12,081 views
A 0.411 g sample of powdered copper mixed with an inert, soluble additive was fully consumed by 23.4mL of 0.602M nitric acid,
1. 1 answer
2. 2,561 views
what is the pH solution in which 15 mL of 0.10 M NaOH has been added to 25 mL of 0.10 M HCl
1. 2 answers
2. 1,040 views
Consider the following equilibrium. 2 SO2 (g) + O2 (g) 2 SO3 (g) The equilibrium cannot be established when __________ is/are
1. 2 answers
2. 871 views
what volume (mL) of 0.0962M NaOH is required to neutralize 10.0mL of 0.128M H2SO4?I got 26.6mL
1. 2 answers
2. 972 views
4x^3-6.68E-7x^2+1.67E-8x-1.04E-10 = 0
1. 2 answers
2. 477 views
4x^3-6.68E-7x^2+1.67E-8x-1.04E-10 = 0
1. 1 answer
2. 391 views
I posted this last night, A 0.500L vessel initially contains 0.0125 mol of H2S2 . Find the equilibrium concentrations of H2 and
1. 2 answers
2. 1,075 views
How many grams of pure H2SO4 can be obtained from 250 grams of iron ore if the ore is 82% FeS2? The reactions involved are given
1. 1 answer
2. 1,038 views
A 0.500L vessel initially contains 0.0125 mol of H2S2 . Find the equilibrium concentrations of H2 and S2. Kc = 1.67 x 10^-72 H2S
1. 2 answers
2. 2,091 views
I posted this question before and the answer is suppose to be 6.8 L but I keep getting 6.12 Ldinitrogen pentoxide n2o5
1. 2 answers
2. 1,379 views
dinitrogen pentoxide n2o5 decomposes by a first-order decomposition in chloroform solvent to yield NO2 and O2. The rate constant
1. 2 answers
2. 1,318 views
dinitrogen pentoxide n2o5 decomposes by a first-order decomposition in chloroform solvent to yield NO2 and O2. The rate constant
1. 3 answers
2. 1,748 views
The potassium salt of benzoic acid, potassium benzoate, KC7H5O2, can be made by the action of potassium permanganate on toluene,
1. 3 answers
2. 3,881 views
The first order rate constant is 1.87 x 10^-3 min^-1 at 37°C for reaction of cisplatin. Suppose the concentration of cisplatin
1. 1 answer
2. 764 views
How many grams of commercial C2H4O2 (97% pure by mass) must be allowed to react with an excess of PCl3 to produce 50.0g of
1. 1 answer
2. 598 views
How many moles of KF are contained in 244 mL of 0.135 m KF solution? The density of the solution is 1.22 g/mL.
1. 6 answers
2. 3,463 views
At 20°C, an aqueous solution that is 18.0% by mass in ammonium chloride has a density of 1.0512 g/mL What is the molarity of
1. 1 answer
2. 1,873 views
the solubility of 1-butanol in water is 7.9g per 100g of water. What is the maximum amount of 1-butanol that will dissolve in
1. 2 answers
2. 856 views
What is the mass percent of an aqueous sodium hydroxide solution in which the molality of NaOH is 6.25m? The density of the
1. 3 answers
2. 5,421 views
A sulfuric acid solution that is 65.0% H2SO4 by mass has a density of 1.55 g/mL at 20°C. What is the mass of h2so4 per liter of
1. 1 answer
2. 4,091 views
Manganese trifluoride, MnF3,can be prepared by the following reaction.2 MnI2 (s) + 13 F2 (g) ---> 2 MnF3(s) + 4 IF5(l) What is
1. 1 answer
2. 1,779 views
If 150 mg of aspirin are rinsed with three portions of 10 mL of water at 25 degrees Celsius, how much aspirin is recovered?
1. 1 answer
2. 854 views
Simplify:A) log(x+1)+3logx B) 2log4np-3log4p C) 2ln(3x)+ln(5x)-ln6xy D) 22log10+log1000-log1
1. 2 answers
2. 496 views
1. Find the vertex of the parabola: 4y^2+4y-16x=02. Find an equation of the parabola, opening down, with vertex (-3,1) and
1. 4 answers
2. 862 views
Prove that tanø is equal to U(k) when the block slides down the incline with a constant speed. (Use symbols, not numbers.)
1. 0 answers
2. 630 views
A swing has a maximum height of 2 m and a minimum height of 0.5 m and it takes 3 seconds to get from the maximum height to the
1. 1 answer
2. 1,960 views
Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday,
1. 2 answers
2. 1,237 views
All sages provide both wisdom and inspiration. Since Dasha’s speech contained wisdom and greatly inspired her audience, Dasha
1. 1 answer
2. 724 views
Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and
1. 3 answers
2. 2,136 views
The of hydroxylamine, , is . A buffer solution is prepared by mixing 120 of a 0.34 hydroxylamine solution with 60 of a 0.25
1. 1 answer
2. 540 views
What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.030 M CH3CO2Na? Assume that the
1. 1 answer
2. 1,413 views
2Al(s)+3Cl2 = 2AlCl3Limiting Reactant is Cl with 0.329mol. What is the maximum mass of aluminum chloride that can be formed when
1. 1 answer
2. 2,322 views
What is the maximum mass of aluminum chloride that can be formed when reacting 30.0g of aluminum with 35.0g of chlorine
1. 1 answer
2. 1,764 views
Steve, in an attempt to impress his girlfriend, plops 18.2 grams of sodium metal into 500 mL of concentrated phosphoric acid
1. 0 answers
2. 460 views
Steve, in an attempt to impress his girlfriend, plops 18.2 grams of sodium metal into 500 mL of concentrated phosphoric acid
1. 0 answers
2. 436 views
Strontium metal is responsible for the red color in fireworks. Fireworks manufacturers use strontium carbonate, which can be
1. 1 answer
2. 2,517 views
Compute the ƒ´Hrxn for the following:CH3OH „³ H2CO + H2 Carbon is the central atom on both the starting material and the
1. 1 answer
2. 430 views
A hungry backpacker needs to boil 150 mL of water to prepare a cup of Ramen Noodles. The filtered river water is at a
1. 0 answers
2. 479 views
ObjectivesTo determine the molecular weight of a volatile liquid. Discussion [This laboratory exercise was adapted from one in
1. 0 answers
2. 984 views
A Balloon Time® tank holds 15% excess capacity to fill 50 helium balloons measuring 9” or 0.5 ft3 in volume at 1 atm and 22
1. 0 answers
2. 504 views
An object is moving at constant velocity of 20m/s for 10 seconds. Find the acceleration during the 10 seconds interval?
1. 2 answers
2. 1,252 views
With regards to the mining and agriculture industry, in the nineteenth century, which of the followingstatements is false? A.
1. 3 answers
2. 490 views
Paint Express charges $30 per gallon of paint plus $1.10 per square foot of wall space. Color Creations charges $24 per gallon
1. 1 answer
2. 523 views
Problem 1 - Aunt Ethel's Fancy Cookie Company manufactures and sells three flavors of cookies: macaroon, sugar, and buttercream.
1. 1 answer
2. 929 views
A farmer’s harvest in bushels varies directly with the number of acres planted.A. Express in sentence form what this means to
1. 1 answer
2. 1,215 views
100g of a saturated solution of sodium nitrate at 43°C is cooled quickly with stirring to 10°C. How many grams of the solute
1. 1 answer
2. 615 views
how to factor when there is not a 1 as a coefficient..for example 2x^2-x-5
1. 1 answer
2. 321 views
write two situations that would use the numerical expression 27/9
1. 1 answer
2. 554 views
solve using the gauss-jordan method.x-2y+4z=7 -x+3y-z=-1 2x+y=-2 *I get through the first two columbs, but can't get the third
1. 3 answers
2. 563 views
If two car are traveling in opposite directions and have average speeds of 45 mph and 55 mph, what equation shows that the cars
1. 2 answers
2. 538 views
the percent of all adults who take photographs is greater than the percent who play word games but less than the percent who
1. 2 answers
2. 285 views
You are an engineer in charge of designing the dimensions of a box-like building. The base is rectangular in shape with width
1. 1 answer
2. 586 views
will acidic foods cooked in a cast iron skillet become Fe+2 enriched because of a reaction beteen the acidic food and the
1. 1 answer
2. 1,318 views
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. The low-temperature reservoir is the outside
1. 1 answer
2. 948 views
Thank you for your help Anonymus.
1. 0 answers
2. 218 views
I am very sorry but I was wrong with the problem.The math problem is: 9 / (3.6-2.1) Thank you Anonymus for your answer but I
1. 2 answers
2. 704 views
How can I get the answer:9 / 3.8 - 2.3 I don't know if I need to divided first or get the difference. Thank you for helping me.
1. 2 answers
2. 408 views
Why is unnecessary to measure precisely 25 ml of unknown acid into the beaker?
1. 0 answers
2. 468 views
So I have this problem:Dave can vote. (18 or over.) Dave is 5 years older than Jim. Jim is not old enough to vote. Write a
1. 1 answer
2. 674 views
ABCD is an isosceles trapezoid with a height of 4 inches and bases of 10 and 12 inches .What is the perimeter of this trapezoid
1. 1 answer
2. 749 views
Calcium carbonate, CaCO3(s), decomposes upon heating to give CaO(s) andCO2(g). A sample of CaCO3 is decomposed, and carbon
1. 1 answer
2. 1,462 views
My question is that how can fe=fe(oh2)be balanced in a basic solution....THANKS IN ADVANCE.
1. 1 answer
2. 328 views
Okay, Assume the triangle has the given measurements. Solve for the remaining sides and angles.A = pi/6; a = 17.4; b = 19.6
1. 1 answer
2. 505 views
Okay, Assume the triangle has the given measurements. Solve for the remaining sides and angles.A = pi/6; a = 17.4; b = 19.6
1. 1 answer
2. 815 views
(2 the square root of 3+1)(the square root of 3-4)
1. 1 answer
2. 332 views
For each of the following descriptions, identify a possibLe underlying personality trait.1) Jenny is described by her coworks as
1. 2 answers
2. 630 views
Okay, today, I find myself utterly dumbfounded by these three questions -Write a proof for - 2/(sqrt(3)cos(x) + sin(x))=
1. 2 answers
2. 926 views

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