A phase shift is defined as the a<span>mount of x by which sinusoid is shifted to the left or right.
And yes, </span><span>every sine function be expressed as a phase shifted cosine function:
</span>
sin(t)=cos(90-t)
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Our answer is

Our greatest common factor, or GCF, is

, so when we factor is out, our divide each term by

, we get our answer. To check this, we can multiply the

back across the parenthesis and see if we get the same result as our initial question.
Hope this helped! :))
Answer:
2/7
Step-by-step explanation:
You would add what is in the parenthesees and you get 6/14 and if you simplify you get 3/7. So you would do 5/7 -3/7
Step-by-step explanation:
=-12.166/-1.54 [if - is in both numerator and denominator then they are cancled out]
=12.166/1.54
=7.9
3. 9a+9b
4. 3n+21
5. 30+2q
6. ab+8a