Answer:
B
Step-by-step explanation:
We have

Here the value of a is always positive because distance is positive

Next, we factor out 7 to get our period

So our period is

Next, our phase shift we set the inner parenthesis equal to 0.


So our phase shift is -3/7
A.
PEMDAS
Parenthesis always comes first, then exponents, multiplication and division, adding and subtracting
Answer:
mud
Step-by-step explanation:
First off when multiplying fractions you always multiply straight across. so the answer would be -5/12.