The sinusoid makes a complete oscillation (i.e. 360°) every 3 seconds. So, in one second it makes 1/3 of a turn, leading to 360°/3 = 120°.
So, the correct answer is the last one.
When factoring an expression, we need to identify the Greatest Common Factor of the expression (GCF). By definition, GCF is the product of prime factors involved with its Lowest Exponent.
We need to divide each term by the GCF to get the expression inside the parenthesis.

Conclusion:
From above we can conclude that the below expressions are factored completely

The probability is 3/5. Since there are 5 out of 10 sections labeled with an even number, the denominator of the desired probability is 5. Since t<span>hree sections are both colored red and labeled with an even number, the numerator is 3. The probability is 3/5. We can also use conditional probability: P(A|B)=P(AUB)/P(B). Let A=section colored red, B=section labeled with even number. P(AUB)=3/10, while P(B) is 1/2, so P(A|B)=3/5.
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