Answer:
A
Step-by-step explanation:
We can write this as Sinx by "flipping" the 
.
So we will have: 
From basic trigonometry, we know the value of 
of sine is of the angle 
<em>But when is sine negative? </em>Either in 3rd or 4th quadrant. But the answer has to be between 0 and 
, <em>so we disregard 4th quadrant.</em>
<em />
<em>To get the angle in 3rd quadrant, we add π to the acute angle of the first quadrant (which is π/4 in our case).</em><u><em> Thus we have:</em></u>
A is the right answer.
Answer:
30
Step-by-step explanation:
The length of the molecule is 
in scientific notation.
Data;
- Width of molecule = 3*10^-6 cm
- Number of molecules = 225
<h3>Length of the molecule</h3>
This can be calculated as the total length of the 225 molecules added together. To do this, we simply multiply both the numbers of the molecules by the width of the molecule.
This becomes;
The length of the molecule is in scientific notation.
Learn more on scientific notation here;
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