Question

qrt{1.21} " align="absmiddle" class="latex-formula">

Answer 1

The given expression is:

$10-3\sqrt{1.21}$

Now, we know that the square of 1.1 is 1.21, which means that 1.1 multiplied by itself gives 1.21.

Mathematically, that can be expressed as:

$1.1\times 1.1=1.21$

or, $(1.1)^2=1.21$

thus, the square root of 1.21 is 1.1

or $\sqrt{1.21}=1.1$

Thus, applying this in the expression in the question given to us, we will get:

$10-3\sqrt{1.21}=10-3\times 1.1=10-3.3=6.7$

Thus, 6.7 is the final answer for the given expression.