Try this explanation+solution:
1. According to the given graph it is possible to define A - amplitude and B - frequency of this function, then to substitute them to its equation.
2. A=5 (max. and min. values for vertical); B=2 (two periods in the length 2π).
3. answer: y=5sin2x.
Answer:
25
Step-by-step explanation:
Since each of the six possible outcomes is equally likely, you can expect to get each of the outcomes 150/6 = 25 times.
if this is wrong, let me know so I can fix it
hope this helps:)
Answer: 
Step-by-step explanation:

This could be written in index form as :

By laws of indices , we will equate their power , that is :

Expanding , we have :


factorising the Quadratic equation , we have :



Therefore:
or 

Lw=A
2l+2w=112
l=6w
2(6w)+2w=112
12w+2w=112
14w=112
w=8
l=48
A=384 ft^2
Ummm...person...you do know we need to see the graph, not the answers, right?