# measurement

1,090 results

### geometry

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

### 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, ...

### 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>...

### 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...

### 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...

### 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...

### Math, please help

The measurement of angle BC is 30° less than the measurement of angle AB. What is the measurement of angle AB? AB-30°=180 AB=150° ?????

### math

The measurements in the list below have a characteristic in common. 6x5 2 miles 6x5 72,000 inches 6x5 3,000 feet Which statement describes the common characteristic? A Each measurement is greater than 4,000 yards. B Each measurement is equivalent 1,760 yards. C Each ...

### math

the measurement of an angle is 5times the measurement of its supplement.what is the measurement of the angle?

### 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...

### Math

1. Hannah drew a pattern using only equilateral triangles. Which of the following statements about the angles is an equilateral triangle is true? A. The measurement of each angle is 60 degrees** B. The measurement of each angle is 120 degrees C. The measurement of one angle is...

### 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...

### 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 ...

### 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...

### 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...

### Chemistry

What value of a measurement must be known if the accuracy of an experimental measurement is to be determined?

### Chemistry 22

Your length measurement was 21.34 cm. The ‘accepted value’ was 21.77 cm. What is the percent error of your measurement?

### 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

### Physics

The percentage errors in the measurement of mass and speed are 2% and 4%respectively. Then find maximum error in the measurement of K.E?

### 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?

### 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.

### Biology Vocab

This is an error in measurement that can be caused by an imperfection in the equipment being used or from mistakes the experimenter makes while taking the measurement.

### 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

### 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...

### 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, ...

### Percent

Julian's measurement was 105 percent of 50 pounds and Amanda's measurement was 95 percent of 50 pounds. How many pounds off was Julian's measurement? How many pounds off was Amanda's measurement? Did they both have the same percent error?

### 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 ...

### 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

### 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

### 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

### math

(ASAP!!) can somebody tell me the answers to the measurement test on Connexus academy lesson 17 unit 2 measurement test, so I get a good grade.

### 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"

### 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

### 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.

### 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.

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### Math

Angles K and O are supplementary. If measurement angle K= 3x+10 and measurement angle O= 10x-12, find the measure of each angle. I don't understand how to solve.

### 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?

### geometry

if the measurement of angle fgk is 3y-4 and measurement of angle kgh is 2y+7 find x

### Measurement Queston

Whats the difference from 3" and 3' in a measurement? For example what is the difference from 3" x 12" and 3' x 12' Thank you for the qualification

### 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.

### 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 ...

### 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.

### Math

If the standard error of measurement is 3, and a person scores 125, Standard error of measurement with one standard deviation would put the score at ____?

### Math

Find the greatest possible error for the measurement 0.991 g. Find the percent error of the measurement 4 cm.

### Mathematics

If a measurement of 2.25 inches on a map represents 50 miles, what distance does a measurement of 18 inches on the map represent?

### Statistics

Can someone please help with this? A measurement follows the normal distribution with a standard deviation of 15 and an unknown expectation μ. You can consider that measurement to be the "original" distribution. Two statisticians propose two distinct ways to estimate the ...

### 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 ...

### 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.

### 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?

### 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...

### 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, ...

### 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

### 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?

### geometry

if the measurement of angle 1 plus the measurement of angle 4 equals 70, find the sum of angle 6 and angle 7

### 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...

### 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 ...

### 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. ...

### 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...

### 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?

### 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 ...

### physics

Given that V=[ð*D^2]*h/4 and fractional error in W leading from the errors Äa, Äb and Äc from the measurement of a, b, and c is given by ÄW/W= sqrt((nÄa/2)^2+(mÄb/2)^2+(pÄc/2)^2) where one has a quantity W proportional to a^n* b^m* c^p,where a, b, and c are variables ...

### 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 ...

### Math (Grade 11)

1) The measurement is 15.5, the tolerance is 5. Whats the precision, uncertainty, range, nominal value and precent error? 2) The measurement is 14.5, the tolerance is 6. Whats the precision, uncertainty, range, nominal value and percent error? 3) The uncertainty is 15, the ...

### 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 ...

### Calculus

An error in the measurement of the radius of a circle results in an error in the computation of its area. Find and interpret the sensitivity of area (a) of a circle to the measurement of radius, r, when the radius r=2 meters.

### 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...

### Math

Select all that are true With which information can you construct more than one triangle? The measurements of two angles The measurements of two angles and the length of the included side The measurement of all angles The lengths of two sides and the measurement of the ...

### Percent error math

Julian's measurement was 105 percent of 50 pounds and Amanda's measurement was 95 percent of 50 pounds. How many pound off were each? Do they have the same percent error? I got 5 percent error for both even though Amanda was -5

### 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 ...

### 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?

### 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&#...

### 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&#...

### 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 ...

### 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.

### 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 ...

### 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 ...

### 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. ...

### 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 ...

### 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 ...

### physics

Suppose that a qubit is in the state |Ï†âŒª = a|0âŒª + 1 âˆ’ a2 |1âŒª where a âˆˆ [âˆ’1, 1]. If we ï¬rst perform a standard basis measurement on this qubit and then perform a |uâŒª, |uâŠ¥ âŒª-basis mea- âˆš surement where |uâŒª = b|0...

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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?

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### statistics

Identify the level of measurement of the data and explain what is wrong with the given calculation. In a set of data, movie ratings are represented as 100 for 1 star, 200 for 2 stars, and 300 stars for 3 stars. The average (mean) of the 527 movie ratings is 231.2. I got ...

### 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

### 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#...

### mathematics concepts

Select the answer choice that best describes children's readiness to understand how to tell time. A. Introduce the units of measurement in grade one; expect accurate measurement in second grade. B. It may be introduced in grade 2, but it will be beyond primary before accuracy ...