Wednesday

January 28, 2015

January 28, 2015

Number of results: 850

**geometry**

Find the longest side of triangle ABC, if measurement A=70, measurement B=2x-10, and measurement C=3x+20.
*February 5, 2009 by sarah*

**PHYSICS**

what's the differencces between the meaning of measurement and value of measurement in physics??? The meaning of measurement is a definition of whatever is being measured. I suggest you use a dictionary for that. The answer will depend upon what you are measuring (mass, ...
*September 23, 2006 by Katrina*

**Quantum Physics**

Consider the observable M that corresponds to a measurement in the sign basis where the measurement value is 3 if the outcome is + and -2 if the outcome is - A)Write M in the standard basis. B)If M is the Hamiltonian acting on a qubit which is in the state |phy(0)> = |0>...
*April 16, 2013 by qwerty*

**physics**

Consider the observable M that corresponds to a measurement in the sign basis where the measurement value is 3 if the outcome is + and −2 if the outcome is −. Write M in the standard basis. If M is the Hamiltonian acting on a qubit which is in the state |ψ(0...
*April 19, 2013 by s*

**physics**

Consider the observable M that corresponds to a measurement in the sign basis where the measurement value is 3 if the outcome is + and −2 if the outcome is −. Write M in the standard basis. If M is the Hamiltonian acting on a qubit which is in the state |ψ(0...
*May 15, 2014 by Sam*

**Algebra 8th**

Find the greatest possible error for each measurement. 953 mi 0.5 mi Find the greatest possible error for each measurement. 1 3/4 c not-- 1/4 c Find the greatest possible error for each measurement. 12.3 L 0.05L Find the greatest possible error for each measurement. 4 1/2 oz 1...
*December 3, 2013 by purplebananas*

**math**

the measurement of an angle is 5times the measurement of its supplement.what is the measurement of the angle?
*August 20, 2013 by babyc36*

**Statistics**

Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0 <x<1 Instrument 2 yields a measurement whose p.d.f. is f2(x)=3x^2, 0 <x<1 Suppose that one of the two instruments is...
*December 2, 2010 by Salman*

**Stats and Data**

Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0 <x<1 Instrument 2 yields a measurement whose p.d.f. is f2(x)=3x^2, 0 <x<1 Suppose that one of the two instruments is...
*December 2, 2010 by Salman*

**Quantum Physics**

Suppose that a qubit is in the state |ψ> = a |0> + √ (1-a^2)|1> where a [-1,1] . If we first perform a standard basis measurement on this qubit and then perform a |u>, |u⊥> -basis measurement where |u> = b |0> + √ (1-b^2)|1> for ...
*February 17, 2013 by qwerty*

**Maths**

Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0 <x<1 Instrument 2 yields a measurement whose p.d.f. is f2(x)=3x^2, 0 <x<1 Suppose that one of the two instruments is...
*December 2, 2010 by Salman*

**Math**

Suppose that either of two instruments might be used for making a certain measurement. Instrument 1 yields a measurement whose p.d.f. is f1(x)=2x, 0 <x<1 Instrument 2 yields a measurement whose p.d.f. is f2(x)=3x^2, 0 <x<1 Suppose that one of the two instruments is...
*December 2, 2010 by Salman*

**Chemistry**

What value of a measurement must be known if the accuracy of an experimental measurement is to be determined?
*November 1, 2009 by Anonymous*

**Chemistry 22**

Your length measurement was 21.34 cm. The accepted value was 21.77 cm. What is the percent error of your measurement?
*December 4, 2010 by Ivy*

**Chemistry**

How many number of significant figures are there in measurement 6.80? I think 2 In measurement 43.52 cm what is digit is the most uncertain? thanks
*January 17, 2007 by Bryan*

**math**

Write an explanation of the steps you use to convert a measurement in one unit to a measurement in another. 1) How many picometers are there in a kilometre?
*October 12, 2009 by jo*

**Algebra 1**

A measurement is given. Find the minimum and maximum possible measurement. A doctor measures a patient's weight as 162 lb to the nearest pound.
*September 20, 2011 by Isachaly*

**statistics**

From the MM207 Student Data Set identify the following: a) A variable measured at the nominal level of measurement. b) A variable measured at the ratio level of measurement. c) A variable measured at the ordinal level of measurement
*October 17, 2011 by Audrey*

**Chemistry (Check)**

Completion. struggling with this....I got 1) 2)Precision 3)experimental value 4) 5) The ___1___ of a measurement describes how close the measurement comes to the true value. The ____2___ of a measurement depends on its reproducibilty. An ___3___ is a value measured in the lab...
*January 14, 2007 by Bryan*

**groundwater science**

Consider water in a well, and a point of measurement at depth below the surface of the water. True or False: if the point of measurement is located at an elevation of 2,000 ft. above mean sea level, and that point of measurement is 40 ft. below the water surface in the well, ...
*February 5, 2011 by Luke*

**Geometry**

What is the radius if: degree of measurement of arc=30 length=1/3xy(pi) My answer was 8xy. degree of measurement of arc=40 length=8/9(t)(pi) My answer was 9t. degree of measurement of arc=18 length=6(y)pi My answer was 45y. These are the questions I missed, along with my ...
*June 14, 2010 by Temperance*

**algebra**

The measurement of two angles of a triangle are 39 degrees and 70 degrees. Find the measurement of the third angle. Show your work
*December 1, 2012 by Alexius*

**algebra**

The measurement of two angles of a triangle are 44 degrees and 56 degrees. Find the measurement of the third angle. Show your work
*December 1, 2012 by Alexius*

**algebra**

The measurement of two angles of a triangle are 69 degrees and 34 degrees. Find the measurement of the third angle. Show your work
*December 1, 2012 by Alexius*

**help**

if u r making a bookcover about history of measurement can u say me what can be the title that i keep ...except "history of measurement"
*October 23, 2008 by Anonymous*

**Math-measurement**

What is the official name of our system of measurement in America? All I ever hear about is the metric system, but I don't know what ours is called. Thanks
*March 2, 2008 by Ellie*

**chem**

Is the following true or false? The actual size of a measurement multiplied by a conversion factor remains the same, because the measurement being converted is multiplied by 1.
*June 11, 2010 by ash*

**PHYSICS helppppp**

what is the value of measurement?????? What is the value of measurement? I hope I am understanding your question. If one wants to know the number of teeth in a horses' mouth, counting is quite valuable.
*September 23, 2006 by Katrina*

**Algebra 8th**

Find the greatest possible error for the given measurement if it is to the nearest 10 miles. 150 mi a. 5 mi b. 75 mi c. 0.5 mi d. 7.5 mi Find the greatest possible error for each measurement. 18.9 m a. 0.01 m b. 0.5 m c. 9.45 m d. 0.05 m Find the greatest possible error for ...
*November 6, 2013 by purplebananas*

**Physics**

Suppose that a qubit is in the state |\phi\rangle=a|0\rangle+\sqrt{1-a^2}|1\rangle where a\in[-1,1]. If we first perform a standard basis measurement on this qubit and then perform a |u\rangle,|u^\perp\rangle-basis measurement where |u\rangle=b|0\rangle+\sqrt{1-b^2}|1\rangle ...
*August 20, 2013 by tini*

**Physical Science**

If one measurement is known much more precisely than the other, the fractional error is the ratio of the absolute value of the difference (|M1-M2|), and the more accurate value. What is the percentage error of student A's measurement (37.2 cm long if it is determined by ...
*August 25, 2014 by Barbara*

**8th grade - science**

the length of a string is known to be exactly 9.84cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a measurement of 9.8 cm. which student's ...
*October 2, 2009 by Michaela*

**geometry**

If angle 1 and angle 2 are vertical angles and measurement angle 1= 3x+17 and measurement angle 2= 4x-34 what is measurement angle 1?
*November 27, 2013 by Anonymous*

**geometry**

if the measurement of angle fgk is 3y-4 and measurement of angle kgh is 2y+7 find x
*February 13, 2014 by jenn*

**geometry**

line AB is parallel to line CD, the measurement of angle A=2x-25, and the measurement of angle C=x+5. find the value of x. show work and explain your reasoning.
*October 29, 2011 by joseph*

**Econometrics**

Consider a linear model with unobserved beterogeneity (q) and measurement error in an explanatory variable: y = B0 + B1x1 + ... + Bkx*k + q + v where ek = xk - x*k is the measurement error and we set the coefficient on q equal to one without loss of generality. The variable q ...
*August 31, 2013 by Joy*

**Math**

The edge of a cube was found to have a length of 50 cm with a possible error in measurement of 0.1 cm. Based on the measurement, you determine that the volume is 125,000 cm3. Use tangent line approximation to estimate the percentage error in volume.
*December 29, 2014 by Mimi*

**Math**

Find the greatest possible error for the measurement 0.991 g. Find the percent error of the measurement 4 cm.
*September 1, 2012 by Anonymous*

**chemistry**

Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty. You could use either of the two options given below. Take a ruler and measure the height of the textbook three ...
*June 15, 2011 by mema*

**Geometry**

Write the ratio of the first measurement to the second measurement. Diameter of care tire:40cm Diameter of care tire:18mm I'm not sure hoow to do this. May someone explain how to do this problem.
*February 12, 2014 by Candy*

**physics**

A d.c. circuit can be represented by a voltage source of 10 V in series with an output resistance of 1 k ohm. An ammeter of 50 ohm resistance is connected to the source terminals for measurement of current. what will be the accuracy of measurement?
*December 3, 2013 by Sarsi*

**Math - More Precision and Significant Digits**

Please help me with the following problems: 3. Choose the more precise measurement. 6 cm or 2.5 cm I think it is 2.5 cm. Is this correct? 7. Choose the less precise measurement and explain why it is less precise. 2.8 mm or 3.79 mm I think the answer is 3.79 mm. Is this correct...
*August 30, 2014 by Brady*

**Science**

What is the science of measurement 9 letter word. Thanks, Lindsey Hi there, I was able to find the answer online by typing "science of measurement" in quotes into the google search engine. I hope that helps. Thanks I had done that but without the quotetion marks. Thanks, ...
*September 4, 2006 by Lindsey*

**Chemistry (Check)**

Are most factors unity? Is this True or false I'm thinkin true.. The actual size of a measurement multiplied by a conversion factor remains the same, beacause the measurement being converted is multiplied by unity. okay
*January 25, 2007 by DrBob222*

**Chemistry **

suppose a graduated cylinder wasn't correctly calibrated, how would this effect the results of a measurement? How would it effect the results of a calculation using this measurement?
*September 15, 2009 by levi*

**geometry**

if the measurement of angle 1 plus the measurement of angle 4 equals 70, find the sum of angle 6 and angle 7
*March 29, 2013 by Christine*

**Geometry**

What is the circumference of the circle if the radius is: 5x-My answer was 57(x)pi. What is the radius if the circumference is: 30x(pi)-My answer was 2x. (x + y)pi -My answer (x+y)/7. What is the length of the arc if: radius=3 degree of measurement of arc=6- My answer was pi/9...
*June 14, 2010 by Temperance*

**statistics**

A group of scientists is studying whether a new medical treatment has an adverse (bad) effect on lung function. Here are data on a simple random sample of 10 patients taken from a large population of patients in the study. Both variables are measurements, in liters, of the ...
*August 17, 2013 by Anonymous*

**Technology**

Please check this for me: 5. The freezing point of water on the Celsius temperature scale is a. 0 degrees b. 32 degrees c. 100 degrees d. 212 degrees A 8. A measurement for a rectangular box is given as 150 cubic inches. This measurement indicates the _____ of the box. a. ...
*December 18, 2009 by y912f*

**trig 30**

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. Could...
*April 29, 2010 by Rae*

**geometry**

If the measurement bewtween A and B is 44 feet and the measurement between A and C is 26 feet, what is the distance between B and C?
*September 21, 2011 by Anonymous*

**Chemistry (Check)**

Completion 1)1 2)conversion factor 3)change 4)Dimensional anaylsis 5) Whenever two measurement are equal, or equivalent, a ratio of these two measurements will equal ___1____. A ratio of equivalent measurement is called a ___2___. When a measurement is multiplied by a ...
*January 24, 2007 by Bryan*

**physics**

Given that V=[*D^2]*h/4 and fractional error in W leading from the errors a, b and c from the measurement of a, b, and c is given by W/W= sqrt((na/2)^2+(mb/2)^2+(pc/2)^2) where one has a quantity W proportional to a^n* b^m* c^p,where a, b, and c are variables calculate...
*December 25, 2010 by Anonymous*

**stats**

Weights of parts are normally distributed with varianceσ2. measurement error is normally distributedwith mean zero and variance 0.5σ2, independent ofthe part weights, and adds to the part weight. Upper andlower specifications are centered at 3σ about the ...
*November 14, 2014 by sam*

**2nd Grade Mesaurement **

I tutor 2nd Graders and they are stating to learn measurement in cups, gallons, Pints, Inches, Feet, Cm, . . . etc. I need a website that will show me how to better explain to them of how to solve the answers. Also, I don't know how to measure. I need a website that will also ...
*February 2, 2014 by Qiayamah*

**Math Calculus**

A sphere is initially measured as having a radius of 4 inches. A subsequent measurement shows that the radius is really 3.99. Find (a) the actual difference in volume between the initial measurement and the correction, and (b) the difference as estimated through differentials...
*July 8, 2011 by Megan*

**physics**

Suppose that a qubit is in the state |φ〉 = a|0〉 + 1 − a2 |1〉 where a ∈ [−1, 1]. If we ﬁrst perform a standard basis measurement on this qubit and then perform a |u〉, |u⊥ 〉-basis mea- √ surement where |u〉 = b|0〉 + 1 − b2 |1〉 for some b ∈ [−1, ...
*February 18, 2013 by JAY*

**chemistry**

In a laboratory experiment, the density of a concentrated sugar solution was determined by measuring the volume of the solution and corresponding mass. Three students each made a set of measurements using a different balance and used the results to calculate density. Their ...
*August 30, 2008 by helpp*

**Math**

Ryan estimates the measurement of the volume of a popcorn container to be 282 cubic inches. The actual volume of the popcorn container is 289 cubic inches. What is the relative error of ryan's measurement to the nearest thousandth?
*February 28, 2009 by Julie*

**physics**

Now note that the following becomes good approximations as θ→0: sinθ≈θ sin2(π4−θ)≈12−c⋅θ (where c is some constant.) Use these approximations to estimate the probability of success of the two measurements as x&#...
*February 14, 2013 by unknown*

**Physics**

Now note that the following becomes good approximations as θ→0: sinθ≈θ sin2(π4−θ)≈12−c⋅θ (where c is some constant.) Use these approximations to estimate the probability of success of the two measurements as x&#...
*February 17, 2013 by unknown*

**Physics Measurement**

Upon what is the precision of a measurement based? It depends upon what is being measured. For volume, the precision depends upon how precisely the buret or graduated cylinder can be read. For mass it depends upon the balance used (triple beam vs analytical balance), its ...
*September 15, 2006 by Katrina*

**Geometry**

A regular pentagonal solid prism has 9cm base edges. A larger, similar solid prism of the same material has 36cm base edges. How does each indicated measurement for the larger prism compare to the same measurement for the smaller prism? Find the volume and weight.
*September 29, 2013 by George*

**quantummechanics**

The following circuit is designed for testing whether |u⟩=|v⟩. The three-qubit gate in the middle is called the controlled SWAP gate, which swaps the last two qubits if and only if the first qubit is 1 (a) If |u⟩=|v⟩=|+⟩, what is the ...
*September 15, 2013 by Anonymous*

**Math**

This is what my paper said(or close enough) Mike is measuring his baseball bat with a 1/8 inch ruler What is the precison using this measurement using this ruler______(i answered 1/8 inch, is it correct?) What is the greatest possible error?_________ (this is the hardest one ...
*November 29, 2011 by Anonymous*

**Chemistry**

Is the following sentence true or false? To decide wheather a measurement has good precision or poor precision, the measurement must be made more than once. thanks in advance True. I hate T/F statements that have "must be". Life is full of exceptions to always, and must be. ...
*January 11, 2007 by Bryan*

**Geometry**

How do I figure out the area and perimeter of a square if all I know is the cross (top left corner to bottom right corner) measurement? I have a square with the cross measurement of 8.5 (or 4 X sq root of 2, i rounded to 8.5). The square looks like it is cut in half to look ...
*September 2, 2009 by sam*

**Statistics (Please help!!!)**

Are there tables comparing and contrasting the following or how would you write these up? 1. Ecological Studies and Cross-Sectional Studies 2. Case control studies and Cohort studies 3. Measurement bias (aka information bias) and selection bias 4. Nondifferential ...
*September 6, 2013 by Joy*

**Probability**

Let Θ be an unknown random variable that we wish to estimate. It has a prior distribution with mean 1 and variance 2. Let W be a noise term, another unknown random variable with mean 3 and variance 5. Assume that Θ and W are independent. We have two different ...
*April 20, 2014 by A*

**Math**

What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value? The two values are different because of their sig figs, the first has 3 and the other has 4. I think that the factor of a ...
*September 3, 2012 by Hannah*

**Physics(Please check)**

What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value? The two values are different because of their sig figs, the first has 3 and the other has 4. I think that the factor of a ...
*September 2, 2012 by Hannah*

**Physics(Please check)**

What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value? The two values are different because of their sig figs, the first has 3 and the other has 4. I think that the factor of a ...
*September 3, 2012 by Hannah*

**MATH**

I am working on Measurements and it is one of the most difficult things for me to do. Topics include the SI measurement, Imperial Measurement, and Converting between SI and Imperial Systems. I would like to do some review on this and would like to know a easier way to all ...
*September 15, 2010 by Anonymous*

**physics**

the density of a cube is measured by it's mass and length of it's side if the maximum error in the measurement of mass and length are 3% and 2% respectively. the maximum error in the measurement of density of cube is?
*May 24, 2014 by fatimah*

**8th grade science**

the length of a piece of string is known to be exactly 9.84 cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a measurement of 9.8 cm. how ...
*October 2, 2009 by Michaela*

**Chem-Temperature and Volume Relationships**

What condition must be true when conducting temperature volume measurement? Why would a rubber balloon be a poor system for this kind of expirement? The general equation is (P1V1)/T1 = (P2V2)/T2 If V and T are being studied, then P must be held constant. Would you think P ...
*January 25, 2007 by Chrissy*

**geometry & measurement**

jose wants to buy a new tv that will fit the opening of his entertainment center. the height of the opening in his entertainment center is 27 inches. usually, the opening of an entertainment center has a width-to-height ratio of 4:3. what is the diagonal measurement of the ...
*February 23, 2008 by beth*

**Math - Please Check My Answers**

Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is to the nearest 10 ...
*August 31, 2014 by Brady*

**geometry**

Angle ABC and angle EBF are a pair verical angles. The measurement of angle ABC = 3X + 8 and the measurement of angle EBF = 2X + 48. What are the measurements of angle ABC and angle EBF
*August 11, 2011 by amy*

**pre-algebra**

0.85 m=____cm 1 meter (m) = 100 centimeters (cm) You're going from the larger measurement to the smaller measurement, in a way. So which way will you move the decimal? Or ... what will you do: multiply or divide by 100? http://www.google.com/intl/en/help/features.html#...
*April 4, 2007 by john*

**physics**

Using the weight equation, weight = (mass)(strength of gravity field) or Fg = mg, calculate your mass in kilograms. Constants: Strength of the gravity field near the surface of the earth, g = 9.8 m/s2. 4.448 Newtons equals one pound of force. You can find the other constants ...
*November 16, 2011 by Maria*

**Physics**

B)In physics (and in all science) standard units are used to ensure measurement uniformity. Which of the following fictitious units of measurement could not be considered a standard unit? 1) The grimph: a distance unit equal to exactly 4 meters. 2) The nicket: a time unit ...
*September 1, 2012 by Zhady*

**Statistics**

Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students' lab measurements is 10 milligrams. Juan repeats the measurement 3 times and records the mean (x-bar) of his 3 measurements. a) What is the standard ...
*February 1, 2011 by Emily*

**Math**

A trundle wheel can be used to measure the walking distance between two locations. a) If the diameter of a trundle wheel is 45cm, how far will a person have walked when the wheel makes one full rotation? b) If a person walks for 0.7km, how many times has the wheel rotated? We ...
*July 16, 2014 by Anonymous*

**math**

how do you measurement measure what?
*September 13, 2006 by kelly*

**physics**

What's indirect measurement?
*August 25, 2008 by jazzy*

**chemistry**

what is qualitative measurement?
*September 10, 2009 by Anonymous*

**Science**

which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
*August 27, 2014 by chris*

**Science**

which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
*August 28, 2014 by chris*

**Science**

which statement best describes the benefit of having a universal system of measurement? A. Scientists from different counties can more easily shared and compare data from experiment. B. Scientists who speak difference languages do not have to translate each others work into ...
*August 28, 2014 by chris w*

**Science**

How does accuracy differ from precision? Accuracy is how close a measurement is to a generally accepted value. Precision is how many digits the measurement is. My weight is 160 lbs, generally accepted as true. My to scales recoreded my weight as 164lbs, and as 144.432 lbs. The...
*January 11, 2007 by Dennis*

**math**

which is the smallest unit of measurement? m, cs, km?
*December 17, 2007 by Andrew*

**Science**

What is the International System of Measurement?
*September 18, 2008 by Mariz*

**7th grade**

What is Indirect measurement?
*June 7, 2009 by Billy*

**chemistry**

how do you determine if a measurement is an outlier?
*March 7, 2011 by Kathy*

**metric measurement**

2,400cm = what in meters
*September 5, 2011 by Heather*

**math-measurement**

divide 3 gallons by 4
*February 12, 2012 by kayla*

**Math**

what is a measurement that is not equal to 8 cups?
*March 3, 2014 by Help *

**Statistics**

A large number of children were surveyed. The table below shows the distribution of the time they spent watching TV in the week before the survey. Intervals include the left endpoint but not the right. You can assume that the times are uniformly distributed within each ...
*March 15, 2013 by Andrea*

**Physics**

I dont understand this statement, could you explain it to me please? Discuss the statement: In the USCS system of measurement the pound (lb.) is a unit of force while in the SI system of measurement the kilogram (kg) is a unit of mass. Why is the lb a unit of force? Why does ...
*August 12, 2007 by Soly*

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