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2012
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Questions Asked on April 21, 2012

Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum
1. 3 answers
2. asked by casidhe
3. 13,600 views
Figure shows an overhead view of a 0.024 kg lemon half and two of the three horizontal forces that act on it as it is on a
1. 1 answer
2. asked by Alexander
3. 6,417 views
The free-fall acceleration at the surface of planet 1 is 18 m/s^2. The radius and the mass of planet 2 are twice those of planet
1. 1 answer
2. asked by Alex
3. 4,795 views
y=6-x y=x^2Find the area of the region by integrating with respect to x. Find the area of the region by integrating with respect
1. 1 answer
2. asked by janki
3. 3,664 views
Which pair of compounds will form a solution?A) Benzene (C6H6) and Hexane (C6H14) B) Na2SO4 and Benzene C) NaCl and Hexane
1. 3 answers
2. asked by Emily
3. 3,390 views
consider the reaction:N2(g) + O2 (g) --> 2NO (g) removing some of the N2(g) will_____ A) increase the concentration of O2 B)
1. 1 answer
2. asked by Shannon
3. 3,228 views
A pair of dice is rolled, and a number that appears uppermost on each die is observed, Refer to this experiment and find the
1. 1 answer
2. asked by Maria
3. 3,128 views
use a calculator to find theanti-ln(-0.049) to the nearest ten thousandth. My calculator doesn't do anti-ln. just ln. Someone
1. 7 answers
2. asked by Tabby
3. 3,013 views
The ceiling of a classroom is 3.75 m above the floor. A student tosses an apple vertically upward, releasing it 0.5 m above the
1. 1 answer
2. asked by Sam
3. 2,995 views
Write a balanced nuclear equation for the positron emission of each of the following nuclei: a) arsenic-74b) oxygen-15
1. 1 answer
2. asked by Shannon
3. 2,899 views
A wheel starts rotating from rest with uniform angular acceleration.After 3.0,its completes one revolution.Calculate a) angular
1. 1 answer
2. asked by 115
3. 2,839 views
4. Which of the following is NOT a threat that impacts biodiversity?a. use of land for agriculture and housing b. dam
1. 4 answers
2. asked by mysterychicken
3. 2,705 views
I was wondering if you guys can help me with this questionAn airplance is traveling 835 km/h in a direction 41.5 degrees west of
1. 1 answer
2. asked by emilia
3. 2,669 views
An object is moving along a straight line and the uncertainty in its position is 1.1 m.(a) Find the minimum uncertainty in the
1. 2 answers
2. asked by linds
3. 2,594 views
given triangle ABC with AB=7cm, BC=8cm and AC=9cm calculate1. the size of the largest angle 2. the area of the triangle
1. 2 answers
2. asked by lindsay
3. 2,539 views
Find all the angles between 0 degrees and 360 degrees which satisfy the equationsa. 8 cos x sin x = sin x b. 5 tan^2 y + 5 tan y
1. 2 answers
2. asked by lindsay
3. 2,308 views
I am suppose to do a funny sonnet poem that has 10 syllables per line and 14 lines .Can you check my syllable or any mistakes.Oh
1. 2 answers
2. asked by joseph
3. 2,229 views
Jan and Nika ride their bikes. Jan rides 5 miles per hour for 1 hour then rides at ten miles per hour for 30 minutes.Nika rides
1. 1 answer
2. asked by Jessica
3. 2,213 views
Write three arithmetic and three geometric means between 4 and 324
1. 2 answers
2. asked by Mason
3. 2,185 views
Determine the cost of painting the exterior walls and top of a cylindrical wheat silo that is 40 m high and 20 m in diameter.
1. 2 answers
2. asked by alley
3. 2,167 views
In an election, ethan got 5 fewer votes than christohper,who got 3 more votes than olivia, who got 4 fewer votes than Ava.How
1. 6 answers
2. asked by jake
3. 2,146 views
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure
1. 1 answer
2. asked by Shavela
3. 2,041 views
The table shows the exterior angle measures for regular polygons. Which expression represents the exterior angle measure for any
1. 2 answers
2. asked by Anonymous
3. 1,988 views
The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with
1. 3 answers
2. asked by Jane
3. 1,925 views
An open box is to be made out of a 8-inch by 14-inch piece of cardboard by cutting out squares of equal size from the four
1. 4 answers
2. asked by casidhe
3. 1,878 views
The standard molar entropy value of N2 (g) is 191.5 J/K-mol,of O2 (g) is 205.0 J/K-mol and of NO2 (g) is 240.0 J/K-mol. From
1. 4 answers
2. asked by CHRIS
3. 1,837 views
scientists often use----to better see how something work?a) models b)data c) procedures d) hypothesis
1. 3 answers
2. asked by michelle
3. 1,820 views
Continue these decimal patterns0,0.5,0.6,0.75,0.8,0.83,----,---,---
1. 1 answer
2. asked by RS
3. 1,802 views
An experimental spacecraft consumes a special fuel at a rate of 2.10 × 102 L/min. The density of the fuel is 0.690 g/mL and the
1. 1 answer
2. asked by Jematormal91
3. 1,758 views
In a right _angled triangle one of the acute angles is 20 dgrees greater than the other.find the angles of the triangle
1. 2 answers
2. asked by Tobi
3. 1,712 views
You have a tuning fork of unknown frequency. When you ring it alongside a tuning fork with known frequency of 360 Hz, you hear
1. 2 answers
2. asked by Helen
3. 1,614 views
The balloon contains 0.30 mol of helium starts at a pressure of 125 kpa and rises to an altitude where the pressure is 55.0 kpa,
1. 1 answer
2. asked by I
3. 1,534 views
You observe that 32 crests of a water wave pass you each minute. If the wavelength is 10 m, what is the speed of the wave?
1. 1 answer
2. asked by ALAINE'
3. 1,460 views
Introduction to quadratic equations?If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0
1. 3 answers
2. asked by Chelsea:)
3. 1,419 views
Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the
1. 1 answer
2. asked by Some1 Help Me Plz
3. 1,353 views
1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment
1. 0 answers
2. asked by Kristie
3. 1,345 views
of the 2598960 different 5 card hands possible from a deck of 52 playing cards, how many would contain all 4 tens?
1. 3 answers
2. asked by mary
3. 1,344 views
Calculate the concentrations of all species in a 0.810 M Na2SO3 (sodium sulfite) solution. The ionization constants for
1. 5 answers
2. asked by Katherine
3. 1,330 views
N2(g) + 3 F2(g) → 2 NF3(g) ΔH° = –264 kJ/mol ΔS° = –278 J/(mol∙K)a. Using the information provided above (only),
1. 0 answers
2. asked by chamy
3. 1,309 views
A guy wire is attached to the top of a pole. The other end of the guy wire is staked in the ground 29 feet from the base of the
1. 1 answer
2. asked by Heather
3. 1,290 views
Enough of a monoprotic acid is dissolved in water to produce a 0.0169 M solution. The pH of the resulting solution is 2.68.
1. 1 answer
2. asked by Lee
3. 1,283 views
Consider the following equilibrium:N2O4 <=> 2NO2 You may assume that delta H and delta S do not vary with temperature. At what
1. 0 answers
2. asked by John
3. 1,280 views
Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is2 NOCl (g) -> 2 NO (g) + Cl2 (g) at 227C Using delta H =
1. 5 answers
2. asked by CHRIS
3. 1,268 views
True or False: Americans tend to look at others above the neck or below the knees. Looking at other parts of a person’s body
1. 5 answers
2. asked by ree
3. 1,267 views
A 2 kg metal plate slides down a 11-meter high slope. At the bottom its speed is 7.5 m/s. To the nearest Joule, what was the
1. 1 answer
2. asked by Anonymous
3. 1,265 views
Write this repeating decimal as a ratio of relatively prime integers:0.324324324...
1. 2 answers
2. asked by Kasey
3. 1,258 views
I've done the first question but I cannot get any farther. I'm so stuck. Please explain or just help me to figure out the next
1. 0 answers
2. asked by casidhe
3. 1,247 views
find the interval on which the graph of f(x)=ln(x^2+1) is concave upward.
1. 1 answer
2. asked by money
3. 1,247 views
A tuning fork has been damaged and its frequency slightly changed. What could its altered frequency be if it produces two beats
1. 1 answer
2. asked by Helen
3. 1,246 views
mr.lopez is putting a face around his vegetable garden. the garden is shaped like a rectangle.the longer side are 14 feet long,
1. 2 answers
2. asked by lise
3. 1,237 views
A recipe for cream of broccoli soup calls for 1 pint of cream and a quart of milk.to reduce the fat,Mrs.homes plans to use all
1. 1 answer
2. asked by neshia
3. 1,237 views
Area A sequence of smaller squares is formed by connecting the midpoints of the sides of a larger square.(a) If the area of the
1. 1 answer
2. asked by chris
3. 1,223 views
An aqueous solution contains 0.216 M ascorbic acid (H2C6H6O6) and 0.131 M hydrochloric acid.Calculate the ascorbate (C6H6O62-)
1. 1 answer
2. asked by Ana
3. 1,219 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. asked by Veronica
3. 1,206 views
What is the fundamental frequency for a 58 cm banjo string if the speed of waves on the string is 450 m/s?
1. 1 answer
2. asked by Lisa
3. 1,194 views
Solve system of equations algebraically.1. 3x-3y=24 and 2x+5y=-37 2. -9x+10y=-2 and 45x-50y=11 3. -9x-3y=-3 and 18x+6y=6 4.
1. 1 answer
2. asked by Anonymous
3. 1,174 views
Use the form of the definition of the integral to evaluate the intergral.From 0 to 9 (10+6x-x^2)
1. 0 answers
2. asked by Andrew
3. 1,174 views
A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the
1. 1 answer
2. asked by Anonymous
3. 1,173 views
What is the volume of a horizontal cylinder whose radius is 2.6 yd,and length is 8.4 yds to the nearest tenth of a cubic yard
1. 1 answer
2. asked by Jane
3. 1,145 views
Find the derivative of each1) y = e^x(Sin²x) 2) y = (x²+1)e^-4 3) y = x²(e^Sinx)
1. 1 answer
2. asked by Julie
3. 1,129 views
Can't figure this out, HELP!:What is the velocity (v) of a stream with a discharge (Q) of 8.53 x 10^3 m 3/s and a
1. 0 answers
2. asked by mel
3. 1,108 views
A doctor advises a patient to change home from the midst of a city to the city outskirts where lichens are found more.what could
1. 1 answer
2. asked by plz help me
3. 1,088 views
need help with a paper from news article on human biology using scientific method?
1. 1 answer
2. asked by tracy
3. 1,085 views
Please help me with this. I just don't get it.The average rate of chemical weathering of carbonate rock in an urban area is 2.1
1. 0 answers
2. asked by mel
3. 1,081 views
A smoke detector contains 0.2 mg of Americium 241 (Am-241), a radioactive element that decays in t years according to the
1. 0 answers
2. asked by Julie
3. 1,080 views
can you give me answers for these question for my homework. thank you1. why dopeople fear earthquakes, hurricanes, and tornedoes
1. 0 answers
2. asked by jessie
3. 1,080 views
A mass oscillates up and down on a vertical spring with an amplitude of 6 cm and a period of 2 s. What total distance does the
1. 1 answer
2. asked by ALAINE'
3. 1,077 views
A rancher wants to fence in an area of 3000000 square feet in a rectangular field and then divide it in half with a fence down
1. 1 answer
2. asked by casidhe
3. 1,040 views
describe the environmental problem waste dumps that causes ill health,accidents,crises and disasters in South Africa and
1. 3 answers
2. asked by charity
3. 1,024 views
Hi,I have two other questions for Applied Calculus but they have graphs and I am unable to post them in here. Is there a way you
1. 1 answer
2. asked by Marie
3. 1,014 views
-√3, 3√3 Write a quadratic equation in the variable X having the given numbers as solutions. Type in standard form ax^2 + bx
1. 2 answers
2. asked by Stella
3. 978 views
express 3 cos x -2 sin x in th eform R cos (x + a) and hence write down the maximum and minimum values of 3 cos x - 2 sin x.
1. 1 answer
2. asked by lindsay
3. 973 views
A car is initially traveling at 20 m/s when it accelerates to 35 m/s in a time of 5 seconds. What is the acceleration of the car
1. 1 answer
2. asked by Matthew
3. 938 views
The value of a $20,000 car decreases every, t. The equation below model this situation.20,000(1-0.04t) = 13,000 How many years
1. 2 answers
2. asked by Jane
3. 932 views
True or False: Because words have human senders and receivers, they also have multiple intentions and interpretations.
1. 1 answer
2. asked by ree
3. 904 views
Why are x-rays uneffected my electric and magnetic fields.Please help me to understand this. I think that x-rays are unefected
1. 0 answers
2. asked by Sam
3. 867 views
How much heat (in Kj ) is required to warm 10.0g of ice, initially at -11.0 C, to steam at 112.0 C?
1. 1 answer
2. asked by Haley
3. 861 views
How much heat (in Kj ) is required to warm 10.0g of ice, initially at -11.0 C, to steam at 112.0 C?
1. 1 answer
2. asked by haley
3. 854 views
a ship travels 8km due north then 7km on a bearing of 070 degrees1. draw a diagram to represent the information 2. calculate the
1. 2 answers
2. asked by lindsay
3. 847 views
The Institute finds that the average student taking Elementary Shorthand will progress at a rate given bydQ/dt=k(80-Q) in a 20
1. 1 answer
2. asked by help please.
3. 842 views
You are planting a rectangular garden. It is 5 ft longer than 3 times its width. The area of the garden is 250 ft^2. Find the
1. 2 answers
2. asked by Jane
3. 832 views
the heat of vaporization of water is 2.26kJ/g. how much heat is needed to change 2.55 g of water to steam?
1. 1 answer
2. asked by Randy
3. 830 views
Dr. Snyder teaches a large introductory statistics course. In the past, the proportion of students that receive a grade of A is
1. 2 answers
2. asked by Anonymous
3. 817 views
Suppose that 1.00 g of rubbing alcohol (C3H8O) evaporates from a 57.0g aluminum block If the aluminum block is initially at 25
1. 1 answer
2. asked by Haley
3. 796 views
What is the longest wavelength that can be heard by a normal ear?
1. 1 answer
2. asked by Hunter
3. 794 views
a bat can fly at a speed of 48km/h . How many minutes will it take to fly a distance of 8km
1. 1 answer
2. asked by shah
3. 779 views
The population of a certain community is increasing at a rate directly proportional to the population at any time t. In the last
1. 1 answer
2. asked by help please.
3. 774 views
A physics student drops a physics text book into a mine shaft 250m deep,where the average mine temperature is 5degrees
1. 1 answer
2. asked by musuma
3. 774 views
Dalco manufacturing estimate that its weakly profit, P, in hundreds of dollars,can be approximated by the formula P= -4x²+8x+7,
1. 1 answer
2. asked by Alex
3. 773 views
Writeacher, I changed my name to Mike1 because someone answered my post with "I don't know". I hope it is OK with you.Here are
1. 2 answers
2. asked by Mike1
3. 763 views
A newspaper article stated that college students at a local university spent an average of $95 on beer a year. A student
1. 3 answers
2. asked by vera
3. 725 views
i am studying about palestinia and israeli have to write 8 bullets notes on what are the problems of the palestians and israel
1. 3 answers
2. asked by marko
3. 716 views
formula: 2KClO3 + NaCL = 2KCl + NaCl + 3O2MASS OF TEST TUBE & MIXTURE = 34.03 G MASS OF EMPTY TEST TUBE = 31.29 G MASS OF
1. 1 answer
2. asked by presh
3. 706 views
Devin attempted to solve the inequality -2x+6>10 following the steps below:•subtract 6 from both sides of the inequality.
1. 1 answer
2. asked by Nicole
3. 702 views
It is known that if the deer population falls below a certain level, m, then the deer will become extinct. It is also known that
1. 0 answers
2. asked by Jenny
3. 694 views
1. Partially CorrectCheck My Work Problem-Solving Strategy Problem 16-1 (Algorithmic) Statement of Cash Flows—Indirect Method
1. 0 answers
2. asked by shell
3. 690 views
If the discriminant of a quadratic equation has the given value, determine the number and type of solutions of the equation.A.48
1. 1 answer
2. asked by Ralph
3. 683 views
Question-2;Consider the function f(x)= -cos3x -4sin3x. (a)Find the equation of the line normal to the graph of f(x) when x=
1. 0 answers
2. asked by weloo_volley
3. 666 views
A reaction will be nonspontaneous under all conditions whena. delta G is negative b. delta H is negative and DS is positive c.
1. 4 answers
2. asked by CHRIS
3. 653 views
In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community.I have choose
1. 2 answers
2. asked by georginah
3. 649 views

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