8/9+6/9 equals 14/9 or 1 and 5/9
Answer:

Step-by-step explanation:

Answer:
the value is undefined
Step-by-step explanation:
hey there,
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0 divided by 0 is undefined
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Answer:
see explanation
Step-by-step explanation:
1
The cosine function in standard form is
y = acos(bx + c)
where a is the amplitude, period =
and
phase shift = - 
here b = 2 and c =
, thus
phase shift = -
= - 
2
the amplitude = | a |
which has a maximum of a and a minimum of - a
y = 4cosx ← has a maximum value of 4