I’m pretty sure this is the answer.
You don’t have all of the answer choices listed, sorry
In the smaller triangle, let
be the length of the smallest leg. Then the smallest leg in the larger triangle is
.
Within the scope of the smaller triangle, we have
such that

Then within the larger the triangle, we would have

Now we can solve for
:


We have been given that a cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shift is 9 units down, and the period of the function is
. The graph of the function does not show a phase shift. We are asked to write the equation of our function.
We know that general form a cosine function is
, where,
A = Amplitude,
= Period,
c = Horizontal shift,
d = Vertical shift.
The equation of parent cosine function is
. Since function is reflected about x-axis, so our function will be
.
Let us find the value of b.




Upon substituting our given values in general cosine function, we will get:

Therefore, our required function would be
.
<span>We have
</span>

Let's take 6 out from the series

<span>Now multiply and divide by 9
</span>


<span>all 1s add up to n
</span>
Answer:
98
Step-by-step explanation:
the time taken is directly proportional and so we multiply 7 by 56 and the divide the answer by 4 to get 98