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Questions Asked on September 24, 2013

Select the statements that correctly describe buffers.?1) The pH of a buffer solution does not change significantly when any
1. 3 answers
2. asked by Aria
3. 10,750 views
Which property is illustrated by the following statement(3z)xy=3(zx)y Associative property of multiplication Communative
1. 8 answers
2. asked by Alex
3. 5,799 views
Noah built a fenced dog run that is 8 yards long and 6 yards wide.He placed post at every corner and every yard along the length
1. 27 answers
2. asked by valeria
3. 5,609 views
A package is dropped at time t=0 from a helicopter S that is descending steadily at a speed vi. (a) What is the speed of the
1. 2 answers
2. asked by Hamad
3. 5,593 views
Find two numbers the exact answer is between 6x7,381
1. 10 answers
2. asked by Caleb
3. 5,292 views
How is writing an equation to represent a situation involving two variables similar to writing an equation to represent a
1. 12 answers
2. asked by Charlotte
3. 4,646 views
simplify the following expression1/4 *fraction* (24-16x) Answers 6+4x 6+4 6-4x 6-4 Is it A?
1. 12 answers
2. asked by Alex
3. 4,525 views
find the measure of each interior angle of a regular 18 - gon.
1. 1 answer
2. asked by ssss
3. 3,976 views
Microwave ovens emit microwave energy with a wavelength of 12.5 cm. What is the energy of exactly one photon of this microwave
1. 2 answers
2. asked by Kiana
3. 3,737 views
2) What is the rhyme scheme of the following poem?He sat upon his brand new bike Waiting for his best friend Mike He couldn’t
1. 7 answers
2. asked by Gabby
3. 3,440 views
suppose that grade point averages of undergraduate students at one university have a bell shaped distribution with a mean of
1. 2 answers
2. asked by roy
3. 2,656 views
A laser pulse with wavelength 540 nm contains 4.40 Mj of energy. How many photons are in the laser pulse?
1. 3 answers
2. asked by Anonymous
3. 2,582 views
1.which factor is most helpful in helping technology to progress?a) unintended consequences b) a better understanding of the
1. 5 answers
2. asked by victoria
3. 2,301 views
Which statement is true?A.The sum of two positive integers is sometimes positive, sometimes negative. B.The sum of two negative
1. 7 answers
2. asked by Savannah
3. 2,261 views
which of the following describes feedback in an oven ?a) setting the temperature b) burning gas releases heat c) a thermostat
1. 4 answers
2. asked by victoria
3. 2,056 views
A 6.25 gram sample of copper(II) chloride hydrate was heated until all the water was liberated. The residue massed 4.45 grams.
1. 2 answers
2. asked by Peytreshia
3. 2,035 views
Mona earns 3 times as much as an actuary as she does as a writer. Her total income is $40,000 more than her brother. He earns
1. 1 answer
2. asked by Stephanie
3. 1,860 views
4. A shipping crate has a square base with sides of length x feet, and it is half as tall as it is wide. If the material for the
1. 1 answer
2. asked by Ariff
3. 1,859 views
Tell whether the sequence is arithmetic. If the sequence is arithmetic, write a function rule to represent it.12, –9, 6, –3,
1. 2 answers
2. asked by bobby
3. 1,790 views
If as writing Spanish Conquistadors, would it have to be capitalized?how about European Explorers?
1. 4 answers
2. asked by Unknown
3. 1,777 views
a cookie recipe calls for 2 1/4 cups of flour.the yield of the recipe is two dozen cookies.how much flour goes into each cookie?
1. 2 answers
2. asked by jesse
3. 1,749 views
the sum of three even consecutive integers if the first integer is y.
1. 1 answer
2. asked by jaime c
3. 1,691 views
1.Which statement is not true concerning the Albany Plan of Union?2.How did Americans oppose the Stamp Act? 3.What was the
1. 2 answers
2. asked by yulonda
3. 1,655 views
4) The roots of the equation z^2+2z+4=0 are denoted by α and β.a) find α and β in the form re^iθ, giving the values of r
1. 1 answer
2. asked by Kerry
3. 1,529 views
Table salt, NaCl, and sugar C12H22O11 are accidentally mixed. A 5.50g sample is burned and 3.60g of CO2 is produced. What was
1. 5 answers
2. asked by Andrew
3. 1,462 views
air coin is flipped 20 times.a. Determine the probability that the coin comes up tails exactly 15 times. b. Find the probability
1. 1 answer
2. asked by nneamaka
3. 1,298 views
Anna burned 15 calories per minute running for x minutes and 10 calories per minute hiking for y minutes. She spent a total of
1. 1 answer
2. asked by Joy
3. 1,279 views
The length of a rectangle is twice the width. The perimeter is 84 cm more than its width. Find the dimensions.
1. 1 answer
2. asked by Stephanie
3. 1,270 views
A bullet was fired horizontally from the top of a 1.5x10^2 m tall tower at 2.8x10^2 m/s. Determine its speed on impact with the
1. 3 answers
2. asked by Brian
3. 1,240 views
If a student used an iron scoopula, instead of a plastic one, to add the unknown metal to the HCl solution, will it affect the
1. 1 answer
2. asked by Ella
3. 1,233 views
If two wires P and O each of the same length and same material,are connected in parallel to a battery. The diameter of P is half
1. 2 answers
2. asked by Roy
3. 1,231 views
Earth completes one full rotation each day, making the Sun appear to rise and set. If the Sun passes directly overhead, by how
1. 2 answers
2. asked by samantha rodriguez
3. 1,134 views
redox reaction:Hydrogen peroxide is added to an acidified solution of potassium permanganate. what is the total redox reaction?
1. 1 answer
2. asked by Gabriella
3. 1,119 views
the lungs are lateral to the heart?
1. 1 answer
2. asked by betty
3. 1,081 views
a recipe calls for 1/4 teaspoon of salt. to make three times the amount how much salt is needed?
1. 3 answers
2. asked by b
3. 1,072 views
You are considering buying 27 silver coins that look alike, but you have been told that one of the coins is a lightweight
1. 2 answers
2. asked by JC
3. 1,069 views
Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and
1. 2 answers
2. asked by tom
3. 1,068 views
what is the ratio of 4 engines to 18 box cars....trying to help my son in math???
1. 1 answer
2. asked by trevor
3. 1,067 views
A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 4.00 m to
1. 1 answer
2. asked by Terio
3. 1,057 views
You have prepared a 400 mL of a .210 M acetate buffer solution with a pH of 4.44.1. Determine the concentration of both the
1. 1 answer
2. asked by Ross
3. 1,051 views
Three coplanar lines always make a triangle? Find a counter example.
1. 3 answers
2. asked by Krista
3. 1,040 views
I have a presentation due tomorrow on a connection that I made with the Anne Frank Remembered novel but I cant think of an item
1. 4 answers
2. asked by kimmy
3. 1,024 views
Describe the sentence structure Stephen Lautens uses in "A Thankless Experience". Support your view with examples from the
1. 3 answers
2. asked by Andy
3. 1,014 views
Find the Taylor series of f(x) = sin(x) at a = Pi/3.
1. 1 answer
2. asked by Bryan
3. 1,008 views
, what effect on Flim was produced by a) changing the nature of the surfaces, b) changing the normal force, and c) changing the
1. 0 answers
2. asked by meder
3. 967 views
A car is traveling at 60.0 mph whenit collides with a stone wall. The car comes to rest after the first foot of the car is
1. 1 answer
2. asked by leia
3. 962 views
Please track the errors by editing this passage of writing. This is an exercise for my English homework. I have made a couple of
1. 16 answers
2. asked by Sara
3. 952 views
Explain whether Lautens' essay is written formally or informally, referring to examples from the essay for support.The short
1. 2 answers
2. asked by Andy
3. 922 views
Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and
1. 1 answer
2. asked by tom
3. 898 views
A certain bacteria doubles the number of its cells every 20 minutes. A scientist puts 50 Cells in a culture disk. How many cells
1. 1 answer
2. asked by Jude
3. 895 views
A superhero ﬂies 310 m from the top of atall building at an angle of 15 ◦ below the horizontal. What is the horizontal
1. 2 answers
2. asked by Brandom
3. 885 views
Graph inequalities -2x>18
1. 1 answer
2. asked by Casey
3. 865 views
Find the difference: 3-(-9)A. -12 B. -6 C. 6 D. 12 I got the answer on (D)12 but I am not 100% sure becuase they ask the
1. 1 answer
2. asked by Savannah
3. 864 views
find two numbers the exact number is between. my daughter is estimating products.
1. 1 answer
2. asked by kent
3. 848 views
A 20,000 kg railroad car is traveling at 3 m/s when it collides and couples with a second, identical car at rest. What is the
1. 2 answers
2. asked by Jenna V
3. 810 views
which is more accurate direct weighting or weighing by difference?
1. 1 answer
2. asked by Justin
3. 805 views
Factor completely. (a^2+2ab+b^2-c^2)
1. 1 answer
2. asked by Anonymous
3. 802 views
6/ln[x]find the derivative... im coming up with -6/x*(ln(x))^2 but it isn't accepting the answer what am i doing wrong?
1. 2 answers
2. asked by Tim
3. 794 views
A rod 14.0 cm long is uniformly charged and has a total charge of -20.0 µC. Determine the magnitude and direction of the
1. 0 answers
2. asked by suhani
3. 781 views
How would you solve 3x^2+8x-91=0 and 9r^2+4r+2=0 using the quadratic formula?
1. 1 answer
2. asked by Krystal
3. 759 views
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 2.16 km. They start at the
1. 1 answer
2. asked by I NEED HELP PLZ!!! Thanks!!!
3. 753 views
A rod 14.0 cm long is uniformly charged and has a total charge of -20.0 µC. Determine the magnitude and direction of the
1. 1 answer
2. asked by suhani
3. 750 views
Can someone check this.. I put a * by my answers.juan se lava el pelo con la pasta de dientes true * false
1. 1 answer
2. asked by ilikespanish
3. 750 views
I have no idea on how to do this equation please help me.What is the simplified form of the following expression
1. 5 answers
2. asked by Alex
3. 731 views
The area of each trapezoid is 3 times the area of one triangle. The area of one triangle is six square units. What is the total
1. 1 answer
2. asked by Dan
3. 717 views
1)i) use an algrbraic method to find the square root of 2+i√5. give your answer in the form x+iy, where x and y are exact real
1. 3 answers
2. asked by Queenie
3. 697 views
A car is traveling at a constant speed of 31.8 m/s on a highway. At the instant this car passes an entrance ramp, a second car
1. 1 answer
2. asked by larry
3. 696 views
It's recommended that a person drink six 8-ounce glasses of water a day. Which expression shows how many ounces of water a
1. 2 answers
2. asked by jay
3. 694 views
A fish is rising vertically to surface of a lake at rate of 2 m/s observes a bird diving vertically towards water at 4 m/s. The
1. 1 answer
2. asked by swati
3. 689 views
a group of friends went on a hiking trip. they planned to hike a total of 38 miles. they want to complete 25% of the hike by the
1. 2 answers
2. asked by Tiffany
3. 686 views
An object is launched horizontally with a velocity of 12 m/s. What is the vertical component of velocity after 2s? What are the
1. 1 answer
2. asked by Celine
3. 675 views
In a group of quarters and nickels, there are four more nickels than quarters. How many nickels and quarters are the if the
1. 1 answer
2. asked by Jude
3. 672 views
2,3,5,7,11... What is the inductive reasoning?
1. 1 answer
2. asked by Krista
3. 669 views
The Mesozoic Era began about 250,000,000 years ago. The Palezoic Era began 292,000,000 years before that. How long ago did the
1. 1 answer
2. asked by Jared
3. 669 views
Is this math problem hard?- There are 12 brothers living in a mansion. Six brothers are sitting in a rectangular kind of table.
1. 1 answer
2. asked by Losa
3. 666 views
What literary device would pertain to these sentences?1. He leaned hard against the wall. (Upright structure which encloses
1. 1 answer
2. asked by Sam
3. 660 views
I need to write a for and against argument on the following:FOR arguments that Milosevic should go to war & AGAINST arguments
1. 7 answers
2. asked by HS
3. 645 views
Please track the errors by editing this passage of writing. This is an exercise for my English homework. I have made a couple of
1. 13 answers
2. asked by Sara
3. 629 views
What are 5 major impacts of the Greek Civilization and evaluate the influence on US culture even today?
1. 1 answer
2. asked by Beatriz
3. 622 views
A model rocket is launched at an angle of 80 degrees aboce the x axis, with a velocity of 30m/s. How high will the rocket be 5
1. 1 answer
2. asked by Derrick
3. 619 views
The problem is a(a-c)=23. Solve for c if both a and c are positive numbers. Thanks
1. 1 answer
2. asked by DJ
3. 618 views
Just then my Uncle Sol offered Grandma a compliment. "Esther," he said, "that's a beautiful football. Real cott gless." Grandma
1. 1 answer
2. asked by Anonymous
3. 610 views
You withdraw $260 from your bank account in 5 trips to the ATM. What is the average change in your account balance after each
1. 3 answers
2. asked by Stacy
3. 604 views
Sue and Joe each ordered a small pizza. Sue ate 2.5 of her pizza. Joe ate 3/4 of his pizza. What fraction of a pizza did Joe eat
1. 6 answers
2. asked by Anonymous
3. 603 views
What are the specializations of sanitary engineering?Drinking water supply Sewage Wastewater treatment 2) Name the different
1. 1 answer
2. asked by Anonymous
3. 602 views
A block of ice at 0 degrees C, whose mass is initially 40.0 kg, slides along a horizontal surface, starting at a speed of 5.26
1. 0 answers
2. asked by cm
3. 601 views
A spinning top, having an initial angular velocity ω = 3.3 rad/s is given the angular acceleration profile shown in the graph.W
1. 3 answers
2. asked by Sue
3. 597 views
Gregory filled a tank with 4 1/2 gallons of water. Linda filled the same tank with anothewr 2 1/3 gallons of water. finally, Meg
1. 1 answer
2. asked by Jay
3. 596 views
What is the sign of each product? Explain.32. n • n, where n is any nonzero number 33. y • y • y, where y is any negative
1. 1 answer
2. asked by Tamara
3. 592 views
A number multiplied by itself and then by itself again gives -1,000. What is the number? Please show the solution step by step
1. 1 answer
2. asked by Jude
3. 583 views
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other.Mag
1. 0 answers
2. asked by suhani
3. 578 views
A ball starts at the origin from rest rolling down a hill. It takes seven seconds for the ball to reach point “A”, which is
1. 2 answers
2. asked by Sue
3. 576 views
Two facts: A freely falling object at Earth’s surface drops vertically 5 m in 1 s. Earth’s curvature “drops” 5 m for
1. 0 answers
2. asked by Need help badly
3. 572 views
The Vector A is 3cm long and points to the right. The vector B is 6cm long and makes an angle of 130 degrees with the horizontal
1. 1 answer
2. asked by Gabrielle
3. 567 views
Identify the prepositional phrase in the following sentences from the passage.Uncle Sol was impressed. "Very smot," he said.
1. 2 answers
2. asked by Anonymous
3. 559 views
A person applies an 80-N pulling force 25 degrees counterclockwise with respect to the right horizontal to a 100-N box. The
1. 1 answer
2. asked by meder
3. 556 views
There are two flask, one filled with a)ice bath, and b)boiling water.Ice bath: 1.00 L O^2(g) at STP Boiling water: 1.00 O^2(g)
1. 1 answer
2. asked by Mae
3. 550 views
A car A moves to the left with speed 40 km/h(with respect to the road). Another car (B) moves to the right with speed 60 km/h
1. 1 answer
2. asked by Celine
3. 549 views
Can calcium hydroxide solution be used to distinguish Co(NO3)2 and Fe(NO3)3 solutions using only the titration technique?
1. 1 answer
2. asked by Ella
3. 546 views
What literary device pertains to this sentence?1. The smashed hulk of metal, twisted and shaped into awkward, unlikely angles,
1. 2 answers
2. asked by Kelley
3. 546 views

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