Answer:
Step-by-step explanation:
Given
span of bridge 
height of span 
Equation of Parabola

i.e.


length of Arc





One thing to bear in mind with trigonometric expressions is that, the exponent location is next to the function name, instead of the whole expression, though it applies to the whole thing, namely cos²(x), is really [ cos(x) ]², and that matters for using the chain rule.
Answer:
y - 5 = 4 (x - -2) or y - 5 = 4 (x + 2)
Step-by-step explanation:
Point-slope form:
y- y1 = m (x - x1 )
m = 4
x1 = -2
y1 = 5
fill in the blanks:
y - 5 = 4 (x + 2 )
Answer:
X=y/3-1/3
Hope this helped good luck