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2013
April

Questions Asked on April 19, 2013

1.Write a function rule for finding the amount of daily pay, p, in the following situation: A bus driver gets paid $100 each day
1. 134 answers
2. asked by Delilah
3. 37,888 views
Baking soda is sodium bicarbonate, NaHCO3, and vinegar is primarily acetic acid, HC2H3O2. When baking soda is added to vinegar,
1. 5 answers
2. asked by lee
3. 6,655 views
If a solution containing 34.576 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g
1. 3 answers
2. asked by lee
3. 4,328 views
Consider the dissolution of CaCl2.CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 10.4-g sample of CaCl2 is dissolved in 102 g of
1. 1 answer
2. asked by Mike
3. 4,167 views
A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the
1. 3 answers
2. asked by Marc
3. 3,318 views
the percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and
1. 2 answers
2. asked by Paula
3. 2,655 views
A ball of mass 3.0 kg is tied to the end of a 50-cm length of string. The ball and string are swung in a circle in a vertical
1. 3 answers
2. asked by mike richards
3. 2,603 views
Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-
1. 1 answer
2. asked by lee
3. 2,436 views
Suppose you walk accross a room of length 9 metres with the velocity of one and a half Km per hour. Express this velocity in m/s
1. 3 answers
2. asked by Suhani
3. 2,415 views
Two towns are 420 miles apart. A car leaves the first town traveling toward the second town at 55 mph. At the same time, a
1. 3 answers
2. asked by Sam
3. 2,408 views
Two identical spheres of radius 80mm and mass 2 kg on the surface of the earth are placed in contact. Find the gravitational
1. 2 answers
2. asked by Woz
3. 2,378 views
Two charges separated by a distance of 1 m exert a 1.0N force on each other. If the changes are pulled to a 3-m separation
1. 2 answers
2. asked by Ashlee
3. 2,314 views
The strength of a beam varies inversely with the square of its length. If a 15-foot beam can support 500 pounds, how many pounds
1. 1 answer
2. asked by Anonymous
3. 2,074 views
Find the values of the variables.[-12 -w^2] = [2k -81] [2f 3] [-4 3] Show your work?
1. 1 answer
2. asked by Ana
3. 1,849 views
The forward motion of a space shuttle, t seconds after touchdown, is described bys(t)� = 189t − t^3 , where " is measured in
1. 1 answer
2. asked by PLEASE HELP ME!
3. 1,774 views
A random sample of stock prices per share (in dollars) is shown. Find the 90% confidence interval for the variance and standard
1. 2 answers
2. asked by Paula
3. 1,747 views
An electromagnet is ____.A. a permanent magnet B. made with bar magnets C. able to attract all metal substances D. only
1. 1 answer
2. asked by Cassie
3. 1,738 views
Which of the following is true about an object that floats in water? (1 point)The object is less dense than frozen water. The
1. 1 answer
2. asked by William
3. 1,736 views
Explain how heat is transferred between a hot and a cold object by conduction — for example, a warm foot on a cold floor.
1. 2 answers
2. asked by Mr.Brain
3. 1,699 views
Calculate the compositionof the gaseous mixture obtained when 1.25 mol f carbon dioxide is exposed to hot carbon at 800 degree
1. 1 answer
2. asked by sam
3. 1,683 views
Write the net ionic equation (including phases) that corresponds to Fe(ClO4)2(aq)+Na2S(aq)=FeS(s)+2NaClO4(aq)
1. 1 answer
2. asked by lee
3. 1,672 views
How to address the teenage pregnancy?
1. 11 answers
2. asked by Lebogang
3. 1,666 views
What is the relationship between the wavelength and frequency of a sound wave?
1. 0 answers
2. asked by Amber
3. 1,608 views
The sample mean for a recent introductory psychology test was 78, and the sample variance was 9. If a student received a score
1. 2 answers
2. asked by jenn
3. 1,567 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. asked by Veronica
3. 1,386 views
Find the sum[1 4] [0 0] [0 3] + [0 0] A - [1 4] [0 3] B - undefined C - [0 0] [0 0] D - [1 0] [4 3]
1. 1 answer
2. asked by Ana
3. 1,354 views
A manufacturer is interested in determining whether it can claim that the boxes of detergent it sells contain, on average, more
1. 1 answer
2. asked by AV
3. 1,333 views
Find the pH of each mixture of acids1) 0.115M in HBr + 0.125M in HCHO2 2) 0.050M in acetic acid + 0.050M in hydrocyanic acid
1. 1 answer
2. asked by pH of mixture acids
3. 1,301 views
suppose you are standing on a sidewalk . describe your motion relative to the car and the plane
1. 3 answers
2. asked by jorge
3. 1,292 views
Three examples of physical change are ____. (1 point)boiling water, a nail rusting, and a melting candle a pond freezing,
1. 1 answer
2. asked by Reggie
3. 1,264 views
A car of mass 1500 kg traveling at 15.6 m/s loses its brakes and collides with the rear end of the car in front of it, which has
1. 1 answer
2. asked by YOLO
3. 1,250 views
1. How many solutions does the linear system have ?3x - y = 4 -3x + 11y = 2 2. A line passes through the points (6,4) and
1. 1 answer
2. asked by Shevani, help me
3. 1,245 views
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given
1. 1 answer
2. asked by Anonymous
3. 1,237 views
need a good simple to understand resource to explain why the early 20th Century experienced a surge of changing role of art in
1. 1 answer
2. asked by BL
3. 1,233 views
6. When a mass is attached to a spring, the period of oscillation is approximately 2.0 seconds.When the mass attached to the
1. 1 answer
2. asked by Alex
3. 1,229 views
If you roll a number cube 36 times, how many times do you expect to roll an even number?
1. 3 answers
2. asked by paragonnova
3. 1,212 views
You are in a car going 70 km/h and another car passes you going in the opposite direction at 70 km/h. Do both cars have the same
1. 2 answers
2. asked by ear
3. 1,197 views
NEED HELP PLEASE THANK U U R NICE :)Describe how burning fossil fuels has created an imbalance in the carbon cycle. Most people
1. 1 answer
2. asked by Cindy
3. 1,155 views
Find the values of x when,x raised to the power root x = x raised to the power x whole under root.
1. 0 answers
2. asked by Shrabasti Saha
3. 1,144 views
1. Ohm's Law states that for some circuits the voltage is proportional to the current. In other words, if you double the
1. 1 answer
2. asked by John
3. 1,074 views
How much water must be added to 6 mL of a 0.05M stock solution to diltue it to 0.02M ?The answerI got is 15 mL. Is this correct?
1. 1 answer
2. asked by Shadow
3. 1,068 views
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts
1. 4 answers
2. asked by Kelly
3. 1,064 views
1. Determine which ordered pair is a solution of y = x*2–2.(5, 21), (–5, 24), (–1, –1), (–2, 6) 2. Without graphing,
1. 10 answers
2. asked by Katerina
3. 1,051 views
I wrote the thesis but wat do i make the conclusion be...:(This is my thesis: Aldous Huxley's Brave NEw World and Emily
1. 5 answers
2. asked by Deepa
3. 1,049 views
Compare the two sets and describe what you discover.46, 47, 52, 54, 61, 64, 69 57, 57, 57, 57, 58, 61, 61
1. 1 answer
2. asked by kylee
3. 1,014 views
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to
1. 1 answer
2. asked by Marc
3. 957 views
Evaluate the following limits:(I) Lim. (x+1)/[1-sqrt(4+3x)] X >-1 (II) Lim. (2-3x-5x^2)/(1+2x^2) X >Infinite
1. 0 answers
2. asked by gibbs
3. 943 views
If 2.7 moles of copper metal was deposited from a solution of Cu(NO3)2, how many electrons were involved?
1. 1 answer
2. asked by Andrea
3. 929 views
3.What is the slope of the line for the cost of subs at Sam’s Sub Shop? Sam's Sub Shop: Cost: 11 22 44 Subs: 2 4 8 2/11 5.5
1. 3 answers
2. asked by Delilah
3. 924 views
Decide if the following sentence is grammatically CORRECT or INCORRECT.Ich habe meinem Freund einen Film geholt. correct
1. 1 answer
2. asked by bubbie
3. 911 views
A mass of 0.475 kg, on a frictionless table, is attached to a string which passes through a hole in the table. The hole is at
1. 0 answers
2. asked by CPhy
3. 902 views
Given the following piecewise functionf(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the
1. 0 answers
2. asked by Ashley
3. 896 views
A hydrogen-oxygen fuel cell operates on the simple reaction given below.H2(g) + 1/2 O2(g) H2O(l) If the cell is designed to
1. 1 answer
2. asked by sarah
3. 876 views
The song You Are My Sunshine always cheers me up. (1 point)
1. 1 answer
2. asked by Carlie
3. 873 views
Solve the equation. Leave answer in simplest radical form.n^2-2n+1=5
1. 1 answer
2. asked by Elizabeth
3. 868 views
A proton travels with a speed of 3.39×106 m/sat an angle of 56.8 ◦ with a magnetic ﬁeld of 0.305 T pointed in the y
1. 1 answer
2. asked by Anonymous
3. 868 views
An object is launched upward from the ground with an initial vertical velocity of 40 feet per second. After how many seconds
1. 2 answers
2. asked by Amy
3. 860 views
what are the impact of teenage pregnancy in the community.
1. 6 answers
2. asked by phindile
3. 854 views
A newly discovered element, Mysternium (Atomic symbol My) has two isotopes and an average atomic mass of 296.7286 amu. One of
1. 2 answers
2. asked by Monika
3. 852 views
4.What Reagan policy resulted in an increase in the federal budget deficit? *supply-side economics deregulation increased
1. 2 answers
2. asked by James
3. 842 views
If a car is driving at a speed of 80 kilometers/hour and experiences a headwind with a velocity of 15 kilometers/hour, what is
1. 0 answers
2. asked by kiandra
3. 827 views
Find the values of x when,x raised to the power root x = x raised to the power x whole under root.
1. 1 answer
2. asked by Bryan
3. 820 views
A set of n = 5 pairs of X and Y values has SX = 10, SY = 20, and SXY = 10. For this set of scores, what is the value of SP?
1. 1 answer
2. asked by andrea
3. 812 views
A company makes and sells notebook computers. The company’s cost function in thousands of dollars is C(x) = 0.3x + 100, and
1. 0 answers
2. asked by Tamie
3. 811 views
two tables containing electron impact mass spectra data are shown. select the molecule that corresponds to the appropriate
1. 0 answers
2. asked by maura
3. 796 views
A 1400 kg car traveling at 15.5 m/s to thesouth collides with a 4100 kg truck that is initially at rest at a stoplight. The car
1. 1 answer
2. asked by Anonymous
3. 776 views
For the given equation, list the intercepts and test for symmetry.2+y-121=0 Show tests algebraically
1. 1 answer
2. asked by Emily
3. 752 views
Nitrogen dioxide, a pollutant in the atmosphere, can combine with water to from nitric acid. One of the possible reactions is
1. 1 answer
2. asked by Yasemine
3. 748 views
A 10 kg block sits motionless on a table in spite of an applied horizontal force of 2 N. What are the magnitudes of the reaction
1. 1 answer
2. asked by Jami
3. 746 views
The function A=A0e^(-0.0099x) models the amount in pounds of a particular radioactive material stored in a concrete vault, where
1. 0 answers
2. asked by Gage
3. 744 views
A study found that citizens spend on average $1950 per year on groceries with a standard deviation of $100. Assume that the
1. 1 answer
2. asked by Cam
3. 730 views
An object is launched upward from the ground with an initial vertical velocity of 40 feet per second. After how many seconds
1. 2 answers
2. asked by Amy
3. 727 views
how many pieces of wood each 7 1/2 inches long can be cut from a board that is 45 inches long?
1. 2 answers
2. asked by milton
3. 710 views
As Rita drives north on Highway 281 through San Antonio, her actual bearing is 311 degrees. If she is driving at 50mph what is
1. 0 answers
2. asked by DW
3. 709 views
The formula y=1+1.4ln(x+1) models the average number of free-throws a basketball player can make consecutively during practice
1. 0 answers
2. asked by Gage
3. 698 views
A narrow ray of yellow light from glowingsodium (λ 0 = 589 nm) traveling in air strikes a smooth surface of water at an angle
1. 0 answers
2. asked by Anonymous
3. 685 views
ABCD is a quadrilateral with ∠ADC=∠ACD, ∠ACB=∠ABC and CD=7. If triangles ADC and ABC have perimeter 51 and 59,
1. 1 answer
2. asked by HELP ME...uRGENT!
3. 684 views
A shingle falls straight down from the roof of a building that is 144 feet tall.a. Use a vertical motion model to write an
1. 1 answer
2. asked by David
3. 678 views
Which of the following is NOT a possible sign of a chemical change? (1 point)a change in state a change in color the release of
1. 2 answers
2. asked by QUESTION!
3. 678 views
the value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money
1. 1 answer
2. asked by Gage
3. 661 views
Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition
1. 1 answer
2. asked by s
3. 656 views
A rubber chicken of mass 45.0 kg is pulled along a horizontal surface by a rope that makes an angle of 32.0 with the horizontal.
1. 1 answer
2. asked by LMC
3. 652 views
Using a ruler to draw a square with a perimeter of 48ft, and using the scale 6ft=1/2in (Hint: to find the length of each side,
1. 1 answer
2. asked by Tim
3. 640 views
I really need help please!!Karen, Gavin, Nasra, and Ali each have a deck of cards. Each student randomly draws a card from the
1. 1 answer
2. asked by Cherie
3. 636 views
The annual insurance premium on Maria Snyder's house is $2,074 and the annual property tax is $1,403. If her monthly principal
1. 3 answers
2. asked by tmouery
3. 635 views
What is the probability of rolling an even number greater than 2 on a fair number cube? in simplest form
1. 1 answer
2. asked by paragonnova
3. 633 views
How were the workers compensated for their labor in the North and South during 1800 to 1860?
1. 1 answer
2. asked by Omario
3. 632 views
1.write the formula for the function that has degree 3 and zeros of -1,2 and 5 with a lead coefficient of 1? (leave answer in
1. 1 answer
2. asked by cherish
3. 626 views
Consider the Hamiltonian H=Z⊗3 acting on 3 qubits.What is the ground energy of the system? (I.e. the lowest eigenvalue of H?)
1. 4 answers
2. asked by s
3. 621 views
a .300 kg piece of metal is heated to 88 degrees celsius and placed in a copper calorimeter with a mass .150 kg which contains
1. 2 answers
2. asked by Franky
3. 620 views
How to solve I want to build fence. Around garden garden is 4 meters wide and 7 meters long? How many meters of fencing needed
1. 2 answers
2. asked by Linda
3. 614 views
1. A bicycle racer covers a 75 mile training route to prepare for an upcoming race. If the racer could increase his speed by 5
1. 0 answers
2. asked by Sam
3. 603 views
melissa walks 1 and a half miles to school. After school she walks 7 eights of a mile to the park. how many more miles does she
1. 1 answer
2. asked by kevin
3. 597 views
Evaluate the determinant of the matrix.[-4 5 6 0 4 4 -2 -5 4]
1. 0 answers
2. asked by Ana
3. 594 views
Suggest 5 recommendation on how to address the environmental problems within your community or any other community within south
1. 1 answer
2. asked by Pinky
3. 583 views
The time needed for a water wave to change from the equilibrium level to the crest is 0.4185 s.What fraction of a wavelength is
1. 0 answers
2. asked by amaaa
3. 583 views
Triangle ABC is isosceles with AB=AC. D is a point on BC such that AD bisects ∠BAC. What is the measure of ∠ADB (in
1. 1 answer
2. asked by HELP ME...uRGENT!...PLEASE
3. 580 views
The value of a computer bought in 1998 decreases as time passes. Two years after the computer was bought, it was worth $2,600.
1. 1 answer
2. asked by I REEEEEALLYYYYY NEED HELP!!!
3. 580 views
Suppose a customer brings a gold bracelet to a jeweler and asks for it to be changed into a gold ring. Which of the following is
1. 1 answer
2. asked by Tamer
3. 579 views
a cube of wood floating in water support 1 kg mass resting on the center of its top surface. when the mass is removed the cube
1. 1 answer
2. asked by subhash shah
3. 577 views

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