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3 years ago

How does the precision of linear measurements affect calculated measurement?

Mathematics

1 answer:

icang [17]3 years ago

8 0

Answer:

Find the difference (subtract) between the accepted value and the experimental value, then divide by the accepted value. To determine if a value is precise find the average of your data, then subtract each measurement from it.

Step-by-step explanation:

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HEEEEEEEELLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp

Debora [2.8K]

Answer:

Step-by-step explanation:

This problem centers on recognizing the relationship between fractions and repeating decimals.

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Note the following:

$\frac{1}{3}=0.33333333333333333333333333333333333333333333333...$

or more simply $\frac{1}{3}=0.\bar{3}$

This means that $2\frac{1}{3}=2.\bar{3}$

Going back to the original expression, $3\frac{2}{3}+2.\bar{3}$ simplifies to $3\frac{2}{3}+2\frac{1}{3}$

Next, adding mixed numbers. For adding mixed numbers, whole number parts and fractional parts can be added separately <em>(this is because of the associative and commutative properties of addition)... because </em>

$3\frac{2}{3}+2\frac{1}{3}$ means the same thing as

$(3+\frac{2}{3})+(2+\frac{1}{3})$

Changing the order, we can write it as

$3+2+\frac{2}{3}+\frac{1}{3}$

Adding the whole number parts, 3+2 is 5.

Next, adding the fraction parts:

For adding fractions, one must have a common denominator (the bottom part of the fraction must be the same). Once they are the same, the denominator just sort of "hangs out" until the end without changing, and the numerators (the tops) are added together.

Fortunately, the denominators are already the same. So, add the numerators, and the denominator will stay as a 3.

$\frac{2}{3}+\frac{1}{3}$

$\frac{1+2}{3}$

$\frac{3}{3}$

It is important to recognize that any fraction* where the number on the top matches the number on the bottom, the fraction is equivalent to 1.

<em>*(except if the number we're talking about is zero)</em>

So, the fraction parts added together, are equivalent to 1, and the whole number parts added were equal to 5. Returning to our expression...

$3+2+\frac{2}{3}+\frac{1}{3}$

$5+\frac{3}{3}$

$5+1$

$6$

7 0

2 years ago

A clock shows a time of 6 o'clock. What is the measure

balu736 [363]

Question 1

<h3>Answer: 180 degrees</h3>

Reason: The minute and hour hand form a straight line, or straight angle, which is always 180 degrees in measure.

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Question 2

<h3>Answer: 36</h3>

Reason: Split a pizza into 12 equal slices. Imagine having 3 such pizzas to get 3*12 = 36 slices in total. This leads to the idea that 36*(1/12) = 3.

============================================================

Question 3

<h3>Answer: 360 degrees</h3>

Reason: This is by definition of what it means to do a full rotation.

8 0

3 years ago

Mario's car cost $15,999. Each year the car's value decreases by $1,550. This relationship is described by the equation V = 15,9

dedylja [7]

The value of Mario's car after 5 years is $8,249.

<h3>What is the value of the car after 5 years?</h3>

Deprecation is when the value of an asset declines with the passage of time as a result of wear and tear.

V = 15,999 − 1,550t

V = 15,999 − 1,550(5)

V = 15,999 - 7,750

V =$8,249

To learn more about depreciation, please check: brainly.com/question/25552427

#SPJ1

5 0

3 years ago

Lexie earned $64.38 for working from 8:00 AM to 4:15 PM. Within that time, she took a 1 hour lunch break for which she did not g

Tema [17]

8 - 4:15 pm = 8 hours and 15 minutes , minus the hour break = 7 hours and 15 minutes . she earnt $64.38 for 7.25 hours work so 64.38 / 7.25 = 8.88 . she gets paid $8.88 an hour

7 0

3 years ago

Read 2 more answers

An 8-oz bottle of ketchup costs $1.39.

inna [77]

First, you need to find how much an ounce costs. To do that, you have to divide 1.39 by 8. Then you get about 0.17. Now, you multiply 0.17 by 14, and get the answer of 2.38. Therefore, a 14-oz bottle of ketchup costs $2.38.

6 0

4 years ago

Read 2 more answers