Unknown values can be taken as anything , for example : the most common is x for unknown values and sometimes, for angles we can take θ(theta).
it is totally upto you!
Answer:
Step-by-step explanation:
y-value is 0 and the x value is 5
h = 2
k = -1
Solve for 
(the coefficient of the squared term).
The coefficient of the squared term in the parabola equation is 1/9.
You use distributive property to distribute the numbers out.
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Answer:
a
Step-by-step explanation:
Answer:
The length of the circular arc is 8.64 inches
Step-by-step explanation:
Length of circular arc (L) = central angle/360° × 2πr
central angle = pie/4 = 45°, r (radius) = 11 inches
L = 45°/360° × 2 × 3.142 × 11 = 8.64 inches (to two decimal places)
