Are
you familiar with that?
------------
amp = 4
and
period=2 pi /4 = pi /2
Answer:

Step-by-step explanation:
We can substitute the given values of
,
, and
to find the value of this expression.


We know that <em>two negatives make a positive. </em>This means that
will be the same this as 

Adding a negative is the same as subtracting a positive.


Hope this helped!
Answer
b. 32 sq. unit
Step-by-step Explanation
The area of the trapezoid is given by

We substitute the given values into the formula to obtain;

Simplify


Hence the area is
Answer:
-9
Step-by-step explanation:
you're taking away 7 each time, so -2-7=-9