Answer:

Step-by-step explanation:
Sine reaches upper bound when
and then decreases until reaches lower bound when
. By symmetry, we find the following fact:


By information form table we find that:

Therefore, we conclude that value of the given angle is:

Answer:
$420
Step-by-step explanation:
Divide to isolate the cost
240 / 4 = 60 - amount per person (for 4 people)
60 / 5 = <u>12</u> - amount per person per day (5 days)
Multiply using that cost and new values.
12 x 5 = 60
60 x 7 = 420
The problem above can be modelled as shown in the graph below
At

, the height of the water from the ground is

Answer:
the difference is 3
Step-by-step explanation:
1 1/2 is equal to 6/2 so the difference would be 3