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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
134 answers
asked by
Delilah
37,887 views
Baking soda is sodium bicarbonate, NaHCO3, and vinegar is primarily acetic acid, HC2H3O2. When baking soda is added to vinegar,
5 answers
asked by
lee
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
3 answers
asked by
lee
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 answer
asked by
Mike
4,166 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
3 answers
asked by
Marc
3,318 views
the percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and
2 answers
asked by
Paula
2,654 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
3 answers
asked by
mike richards
2,602 views
Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-
1 answer
asked by
lee
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
3 answers
asked by
Suhani
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
3 answers
asked by
Sam
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
2 answers
asked by
Woz
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
2 answers
asked by
Ashlee
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 answer
asked by
Anonymous
2,073 views
Find the values of the variables.
[-12 -w^2] = [2k -81] [2f 3] [-4 3] Show your work?
1 answer
asked by
Ana
1,849 views
The forward motion of a space shuttle, t seconds after touchdown, is described by
s(t)� = 189t − t^3 , where " is measured in
1 answer
asked by
PLEASE HELP ME!
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
2 answers
asked by
Paula
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 answer
asked by
Cassie
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 answer
asked by
William
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.
2 answers
asked by
Mr.Brain
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 answer
asked by
sam
1,682 views
Write the net ionic equation (including phases) that corresponds to Fe(ClO4)2(aq)+Na2S(aq)=FeS(s)+2NaClO4(aq)
1 answer
asked by
lee
1,672 views
How to address the teenage pregnancy?
11 answers
asked by
Lebogang
1,666 views
What is the relationship between the wavelength and frequency of a sound wave?
0 answers
asked by
Amber
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
2 answers
asked by
jenn
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 answer
asked by
Veronica
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 answer
asked by
Ana
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 answer
asked by
AV
1,333 views
Find the pH of each mixture of acids
1) 0.115M in HBr + 0.125M in HCHO2 2) 0.050M in acetic acid + 0.050M in hydrocyanic acid
1 answer
asked by
pH of mixture acids
1,301 views
suppose you are standing on a sidewalk . describe your motion relative to the car and the plane
3 answers
asked by
jorge
1,292 views
Three examples of physical change are ____. (1 point)
boiling water, a nail rusting, and a melting candle a pond freezing,
1 answer
asked by
Reggie
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 answer
asked by
YOLO
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 answer
asked by
Shevani, help me
1,245 views
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given
1 answer
asked by
Anonymous
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 answer
asked by
BL
1,231 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 answer
asked by
Alex
1,229 views
If you roll a number cube 36 times, how many times do you expect to roll an even number?
3 answers
asked by
paragonnova
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
2 answers
asked by
ear
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 answer
asked by
Cindy
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.
0 answers
asked by
Shrabasti Saha
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 answer
asked by
John
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 answer
asked by
Shadow
1,067 views
describe the lifestyle behaviour of the youth who abuse illegal and legal drugs and discuss how this lifestyle behaviour impacts
4 answers
asked by
Kelly
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,
10 answers
asked by
Katerina
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
5 answers
asked by
Deepa
1,048 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 answer
asked by
kylee
1,013 views
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to
1 answer
asked by
Marc
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
0 answers
asked by
gibbs
943 views
If 2.7 moles of copper metal was deposited from a solution of Cu(NO3)2, how many electrons were involved?
1 answer
asked by
Andrea
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
3 answers
asked by
Delilah
924 views
Decide if the following sentence is grammatically CORRECT or INCORRECT.
Ich habe meinem Freund einen Film geholt. correct
1 answer
asked by
bubbie
910 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
0 answers
asked by
CPhy
902 views
Given the following piecewise function
f(x)= {-x+1 for x < 0 {-1 for 0 ≤ x ≤ 3 {-2x for x > 3 a) Find the domain b) Find the
0 answers
asked by
Ashley
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 answer
asked by
sarah
876 views
The song You Are My Sunshine always cheers me up. (1 point)
1 answer
asked by
Carlie
873 views
Solve the equation. Leave answer in simplest radical form.
n^2-2n+1=5
1 answer
asked by
Elizabeth
868 views
A proton travels with a speed of 3.39×106 m/s
at an angle of 56.8 ◦ with a magnetic field of 0.305 T pointed in the y
1 answer
asked by
Anonymous
868 views
An object is launched upward from the ground with an initial vertical velocity of 40 feet per second. After how many seconds
2 answers
asked by
Amy
860 views
what are the impact of teenage pregnancy in the community.
6 answers
asked by
phindile
854 views
A newly discovered element, Mysternium (Atomic symbol My) has two isotopes and an average atomic mass of 296.7286 amu. One of
2 answers
asked by
Monika
852 views
4.
What Reagan policy resulted in an increase in the federal budget deficit? *supply-side economics deregulation increased
2 answers
asked by
James
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
0 answers
asked by
kiandra
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 answer
asked by
Bryan
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 answer
asked by
andrea
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
0 answers
asked by
Tamie
811 views
two tables containing electron impact mass spectra data are shown. select the molecule that corresponds to the appropriate
0 answers
asked by
maura
796 views
A 1400 kg car traveling at 15.5 m/s to the
south collides with a 4100 kg truck that is initially at rest at a stoplight. The car
1 answer
asked by
Anonymous
776 views
For the given equation, list the intercepts and test for symmetry.
2+y-121=0 Show tests algebraically
1 answer
asked by
Emily
752 views
Nitrogen dioxide, a pollutant in the atmosphere, can combine with water to from nitric acid. One of the possible reactions is
1 answer
asked by
Yasemine
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 answer
asked by
Jami
746 views
The function A=A0e^(-0.0099x) models the amount in pounds of a particular radioactive material stored in a concrete vault, where
0 answers
asked by
Gage
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 answer
asked by
Cam
729 views
An object is launched upward from the ground with an initial vertical velocity of 40 feet per second. After how many seconds
2 answers
asked by
Amy
725 views
how many pieces of wood each 7 1/2 inches long can be cut from a board that is 45 inches long?
2 answers
asked by
milton
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
0 answers
asked by
DW
708 views
The formula y=1+1.4ln(x+1) models the average number of free-throws a basketball player can make consecutively during practice
0 answers
asked by
Gage
698 views
A narrow ray of yellow light from glowing
sodium (λ 0 = 589 nm) traveling in air strikes a smooth surface of water at an angle
0 answers
asked by
Anonymous
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 answer
asked by
HELP ME...uRGENT!
683 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 answer
asked by
David
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
2 answers
asked by
QUESTION!
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 answer
asked by
Gage
660 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 answer
asked by
s
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 answer
asked by
LMC
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 answer
asked by
Tim
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 answer
asked by
Cherie
635 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
3 answers
asked by
tmouery
635 views
How were the workers compensated for their labor in the North and South during 1800 to 1860?
1 answer
asked by
Omario
632 views
What is the probability of rolling an even number greater than 2 on a fair number cube? in simplest form
1 answer
asked by
paragonnova
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 answer
asked by
cherish
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?)
4 answers
asked by
s
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
2 answers
asked by
Franky
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
2 answers
asked by
Linda
613 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
0 answers
asked by
Sam
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 answer
asked by
kevin
597 views
Evaluate the determinant of the matrix.
[-4 5 6 0 4 4 -2 -5 4]
0 answers
asked by
Ana
594 views
Suggest 5 recommendation on how to address the environmental problems within your community or any other community within south
1 answer
asked by
Pinky
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
0 answers
asked by
amaaa
582 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 answer
asked by
HELP ME...uRGENT!...PLEASE
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 answer
asked by
I REEEEEALLYYYYY NEED HELP!!!
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 answer
asked by
Tamer
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 answer
asked by
subhash shah
576 views
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