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

i.e.


length of Arc





Hi!
When following the order of operations, A. Parantheses (or brackets) come first. =)
Answer:
f(x)=4^x exponential growth, -6^x exponential decay Step-by-step explanation:
Answer:
A
Step-by-step explanation:
A = 71 so then EG = 91
Multiply, then you get 2a - 10 = -2. Then isolate the variable by adding 10 on both sides. you get 2a = 8. divide both by 2 and you get a = 4