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How is the precision used in measuring the length and width of a rectangle related the precision of the resulting area measurement?
Roughly speaking, the percentage error when you multiply two numbers (measurements) will be similar to the percentage error of each of the individual numbers. Actually, the MAXIMUM percentage error can be approximately as much as the sum of the individual percentage errors, but the EXPECTED percentage error will be less than that.
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What is the square unit of a 4 by 6 rectangle?
The square unit of a 4 by 6 rectangle is 24 square units. This is calculated by multiplying the length (4 units) by the width (6 units) of the rectangle. The resulting product represents the total area of the rectangle in square units.
If two rows of a determinant are interchanged what is true of the resulting determinant?
The resulting determinate is the negative, or opposite, of the original determinant.
If two rows of a matrix are interchanged what is true of the resulting determinant?
The determinant will change sign.
To substitute a value for each variable in an expression and simplify the resulting numerical expression?
imadummy property
To substitute a value for each variable in the expression and simplify the resulting numerical expression?
It is unknown for right now.
What determines the precision of a measurement?
The precision of a measurement is determined by the smallest increment that can be reliably measured by the instrument used. It is influenced by factors like the resolution of the measuring device and the skill of the person taking the measurement. A higher precision means the measurement has smaller increments or divisions, resulting in more accurate and detailed results.
What is 1.68metre squared?
1.68 meters squared is a unit of measurement for area. It represents the area of a square or rectangle with sides measuring 1.68 meters each. To calculate the area of a square or rectangle, you multiply the length by the width, so in this case, the area would be 1.68 meters multiplied by 1.68 meters, resulting in 2.8224 square meters.
Is it true that Precision is a measure of how close a resulting or measurement is to the accepted value of the quantity being measured?
Precision is a measure of how close repeated measurements are to each other. It does not take into account how close the average of those measurements is to the true or accepted value. Accuracy, on the other hand, is a measure of how close a measurement is to the true or accepted value.
What sources of error would account in measurement of the same thing?
Sources of error in measuring the same thing can include systematic errors, which consistently skew results in one direction, often due to faulty equipment or calibration issues. Random errors can also occur, resulting from unpredictable fluctuations in measurement processes or environmental conditions. Human factors, such as misreading instruments or inconsistent techniques, can further contribute to variability. Additionally, the resolution of the measuring instrument may limit the precision of the measurements.
When measuring resistance should there be a voltage applied to the resistor?
No, the meter used to make the measurement will be applying whatever voltage to the resistor it needs to make the measurement. Any additional voltage will disturb this, resulting in at least an incorrect reading and at worst damaging or destroying the meter.
A rectangle has a perimeter of 44 the dimensions of the rectangle are scaled by a factor of 1.5 so what will be the perimeter of the resulting figure?
44 x 1.5 = 66.
When calculating Newton's Second Law of Motion what is the resulting unit of measurement called?
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Why is levelling important in surveying?
Leveling in surveying is important to get an accurate measurement. The rise and fall of the grade will cause the measurements to be off, resulting in an inaccurate measurement of plots of land.
What is the meaning of area in measurement?
Measuring "area" refers to determining size in two dimensions (e.g., length and width). The resulting measure is typically reported in terms of units of measurement "squared." For example, if a surface is one foot long and one foot wide, the area of the surface is called "one square foot" or "one foot squared."
What factors influence the precision of measuring tools?
A Discussion about Precision and Accuracy Precision and accuracy are two terms used interchangeably by the general population. The precision of a measurement is determined by how reproducible that measurement value is. The accuracy of a measurement is the measure of how the answer compared to reality. You need both to have a true measurement.Precision: For example, if a sample is weighed by a student to be 42.58 g, and then measured by another student five different times with the resulting data:Data: 42.09 g 42.15 g 42.10 g42.16 g 42.12 g No comment can be made about the accuracy of the measurements as the actual value is not known. The second student's values however only range between 42.09 and 42. 15 grams giving a variation of only 0.2% between the high and low observed values. The first student would exhibit good precision but still be wrong because his data set is not accurate. As to what makes a device precise: * It should be sturdy so that components are not twisted out of alignment * It should be constructed to standards and tolerances that are known and can be monitored* It should be stable in a wide range of temperature and humidity or capable of maintaining known temperatures and humidity * It should be accompanied by a QA/QC and PM programAccuracy:The accuracy of a measurement is determined by how close a measured value is to its "true" value.For example, if a sample is known to weigh 3.182 g, and then weighed five different times by a student with the resulting data:Data: 3.200 g 3.180 g 3.152 g3.168 g 3.189 gThen the most accurate measurement would be 3.180 g, because it is closest to the "true" weight of the sample. The precision of the data is another issue. The values range between 3.152 g and 3.200 g. a range of .05 g or almost 2% difference between the high and the low. The second student is not precise but has stumbled across an almost correct answer. He is in no position to know which of his answers is correct.As to what makes a device Accurate: * It should have internal or external standards for zeroing and full range measurement * It should be part of periodic QA/QC programs for Accuracy * It should meet the criteria for PrecisionNon-Laboratory Examples:If a carpenter built a house with a non-Accurate tape measure every room would be square and by his tape the exact right size. He would be precise. However, when it came to install a 4' x 8' rug in his 4' x 8' room it would not fit as he was not accurate.If a cook has an oven that has a bad temperature control, it is not precise. If he wants to cook cakes at 375o F for one hour. The cakes will be burnt sometime and underdone at others
Why is it necessary to take both the vernier readings of theodolite?
Taking both the upper and lower vernier readings of the theodolite helps to eliminate any errors caused by misalignment or wear in the instrument, resulting in a more accurate measurement. Comparing the two readings can also help detect any potential issues with the theodolite's precision.
How does a gamma density meter work?
A gamma density meter works by measuring the level of gamma radiation that passes through a material. This measurement is then used to determine the density of the material being scanned. The higher the density of the material, the more gamma radiation is absorbed, resulting in a lower reading on the meter.
