Use the law of cosines. Let 
be the distance between the docks, which forms a third leg of a triangle for which the angle opposite it has measure 45 degrees. The other two legs have lengths 400 ft and 500 ft. So
We are given the equation that is an inequality, y>x^2-6x+7. In this problem, we are asked to determine points that correctly coincide with the graph. In this case, all we have to do is to substitute x with the number and check whether the answer is less than y. If that is the case, that is the correct answer.
Answer:
135.42 square feet
Step-by-step explanation:
2 x triangle face +
2 x rectangular face +
1 x base = Surface Area
2 ( 1/2 * 3 * 4) +
2 ( 3.61 * 11) +
4*11 =
12 + 79.42 + 44 = 135.42 square feet
HOPE THIS HELPS!!!
