Uncertainty in Measurement

$458.8\times 6.8$ of significant figures calculations

$A^x+A^x=A^{2x}$

$4\times {15}^3-2\times {10}^2$ is 

Find the value of $2\times {10}^{12}+4\times {10}^{10}$.

The position of a particle at time $t$ is given by the equation $x\left(t\right)=\frac{v_0}{A}\left(1-e^{At}\right)$, where $v_0=$ constant and $A>0$. Dimensions of $U_{\mathit{0}}$ and $A$ respectively are

The number of significant figures are present in $208$ is _____.

The number of significant figures are present in $500.0$ is _____.

$1 \mathrm{mm}$ of $\mathrm{Hg}$ represents a pressure of

Two students determined the percentage of S in the given sample and each one of them recorded two readings which are given below. Correct reading of percentage of sulphur is $8.37\%$. On the basis of results of the two students, mark the correct option out of the following statements.

Express in significant figures, the mass of $20.0 {\mathrm{cm}}^3$of a liquid having density of$438 \mathrm{g} {\mathrm{cm}}^{-3}$.

Define precision and accuracy.

How many significant figures are present in the following?

$5005$

Perform the following calculation and express the result to appropriate number of significant figures ($\mathrm{A}\times {10}^3$). 

$\frac{6.02\times {10}^{23}\times 5.00}{4.0\times {10}^{20}}$

Note: Enter the value of only $\mathrm{A}$.

How many significant figures should be present in the answers of the following calculation ?

$\frac{0.02856\times 298.15\times 0.112}{0.5785}$

Number of significant figures in $0.0287$ is

Express the number $45000$in exponential notation to show in two significant figures.

$\mathrm{A}:4.5\times {10}^2 \mathrm{B}:4.5\times {10}^4 \mathrm{C}:4.5\times {10}^3$ (Enter your correct answer as $\mathrm{A}, \mathrm{B} \mathrm{or} \mathrm{C}$)

How many significant figures are there in each of the following numbers?
${\left(5.56\right)}^2\left(8.24\right)/\left(3.6\right)$

Which of the following is NOT an objective of a trial balance?

What is the first step in preparing a Bank Reconciliation Statement?

What is the smallest unit of sound in a language that can distinguish words?