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igor_vitrenko [27]
3 years ago
15

WILL GIVE BRAINLIEST AND 13 POINTS!!!!!! When you measure the length of an object to the eighth of an inch and again to the four

th of an inch, which measurement is more precise? EXPLAIN!!!!!!!!!
Mathematics
2 answers:
Savatey [412]3 years ago
7 0

The smaller the value of the least increment, the more precise a number is.

Length measured to the nearest 1/8 inch will be more precisely specified than length measured to the nearest 1/4 inch.

_____

In general, precision has little to do with accuracy—how close the measured value is to the actual value. A measurement can be very precise, but just plain wrong. (Many electronic instruments have resolution (precision) that exceeds their accuracy. That is, one or two (or more) of the least-significant displayed digits may be in error.)

Katarina [22]3 years ago
7 0

Answer:

1/8

Step-by-step explanation:

the increments are smaller ad smaller is more precise. If i have a dot every 4 spaces like below, that represents the quarters.

.   .   .   .   .   .   .   .   .   .

If i have it every eighth like below, that is the eights.

. . . . . . . . . . . . . . . . . . . .

So, if you had to measure something and had two rulers, 1/4in and 1/8in, and you had to round your answer to the nearest mark, you would use the 1/8 because the marks are closer together and therefore, more precise because the mark is more likely to land on a ark and if its in between, your answer is still close.

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Vera_Pavlovna [14]

Answer:

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7 0
2 years ago
Rationalize the denominator of $\frac{5}{2+\sqrt{6}}$. The answer can be written as $\frac{A\sqrt{B}+C}{D}$, where $A$, $B$, $C$
horrorfan [7]

Answer:

A +B+C+D  = 3 is the correct answer.

Step-by-step explanation:

Given:

$\frac{5}{2+\sqrt{6}}$

To find:

A+B+C+D = ? if given term is written as following:

$\frac{A\sqrt{B}+C}{D}$

<u>Solution:</u>

We can see that the resulting expression does not contain anything under \sqrt (square root) so we need to rationalize the denominator to remove the square root from denominator.

The rule to rationalize is:

Any term having square root term in the denominator, multiply and divide with the expression by changing the sign of square root term of the denominator.

Applying this rule to rationalize the given expression:

\dfrac{5}{2+\sqrt{6}} \times \dfrac{2-\sqrt6}{2-\sqrt6}\\\Rightarrow \dfrac{5 \times (2-\sqrt6)}{(2+\sqrt{6}) \times (2-\sqrt6)} \\\Rightarrow \dfrac{10-5\sqrt6}{2^2-(\sqrt6)^2}\ \ \ \ \   (\because \bold{(a+b)(a-b)=a^2-b^2})\\\Rightarrow \dfrac{10-5\sqrt6}{4-6}\\\Rightarrow \dfrac{10-5\sqrt6}{-2}\\\Rightarrow \dfrac{-5\sqrt6+10}{-2}\\\Rightarrow \dfrac{5\sqrt6-10}{2}

Comparing the above expression with:

$\frac{A\sqrt{B}+C}{D}$

A = 5, B = 6 (Not divisible by square of any prime)

C = -10

D = 2 (positive)

GCD of A, C and D is 1.

So, A +B+C+D = 5+6-10+2 = \bold3

5 0
3 years ago
If the model boat is 8 cm long how long is the full size boat?
sertanlavr [38]

Answer:

1 inch equals 8 feet

Step-by-step explanation:

7 0
3 years ago
N-7=-16%8%9 don't get ittt
VLD [36.1K]
N=6.8848 is yours .-.
6 0
3 years ago
How to simplify the problem
inysia [295]
I think you would divide each by 2 and get 1 over 1 which would be 1 squared over 1 (negative) cubed

Hope this helps!
6 0
3 years ago
Read 2 more answers
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