Answer:
B
Step-by-step explanation:
Given
11 - 4x = (3x - 2)² + 1 ← expand the squared factor using FOIL
11 - 4x = 9x² - 12x + 4 + 1, that is
11 - 4x = 9x² - 12x + 5 ( add 4x to both sides )
11 = 9x² - 8x + 5 ( subtract 11 from both sides )
0 = 9x² - 8x - 6 or
9x² - 8x - 6 = 0 → B
Correct Answer - C. Angle F
We know that, the Angle opposite to the longest side have largest measure. So Angle opposite to side DE ( measuring 11 units ) is greatest that is Angle F.
Pitch = rise/span = rise/(2 x run)
5/11 = rise/(2 x 33) = rise / 66
rise = 66 x 5/11 = 30 feet.
