<span>We draw a graph of the function f(x) = x².
Next we translate it 1 unit down.
Look at the picture.
</span>
Next we translate it 1 unit down.
Look at the picture.
</span>
What is the exact value of the expression the square root of 72 − the square root of 8 + the square root of 128?
2 answers:
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Answer:
Correct answer is 54.82 ft.
Step-by-step explanation:
First of all, let us label the diagram and do the construction as per the attached answer image.
Let us consider :
Let side AB = d ft and let side BC = x ft
We need to find AB to find the shortest distance across the river.
Using trigonometric identity of tangent:
Now, let us have a look at another right angled triangle ABD:
Let us consider :
side AB = d ft and side BD = x+75 ft
Using trigonometric identity of tangent:
Correct answer is 54.82 ft.