It would be A since the axe head acts as a wedge and the handle is a basic lever
<span>The relative hardness of a mineral
can be tested by the Moh’s scale or the mineral hardness. The Moh’s scale can
be characterized by the ability of the mineral to resist scratch resistance by
scratching a harder or softer mineral. It has a scale of 1 to 10 where 1 being
the softest and 10 being the hardest. The relative hardness of a mineral can
best be tested by scratching the mineral across a glass plate. The answer is
letter A. </span>
<span>First you need to </span>find<span> the slope of the </span>two lines<span>. Because they are </span>parallel<span>, they are the same slope, so if you </span>find<span> the slope of one, you have the slope of both. Start at the \begin{align*}y-\end{align*}intercept of the top </span><span>line.</span>
Answer: I dont see the option choices
Explanation:
Statement :- We assume the orthagonal sequence
in Hilbert space, now
, the Fourier coefficients are given by:

Then Bessel's inequality give us:

Proof :- We assume the following equation is true

So that,
is projection of
onto the surface by the first
of the
. For any event, 
Now, by Pythagoras theorem:


Now, we can deduce that from the above equation that;

For
, we have

Hence, Proved