The angle that is supplementary to <COB is one that is next to it (in some relation)
and when you add the two angles together, they shall equal 180°.
Hope this will help
This is the answerrrrrrrrr
sin(43) × hypotenuse of 19 gives you oppo
= 13
The average rate of change over the interval
is 2.17
Explanation:
Given that the cost of a floral bouquet after a discount is given by the function 
We need to determine the average rate of change over the interval 
The average rate of change can be determined using the formula,

where
and 
Substituting the value of a and b in the function, we get,






Hence, substituting these values in the formula, we get,

Simplifying, we get,

Dividing, we have,

Thus, the average rate of change over the interval
is 2.17