A cross-section of a parabolic reflector is shown in the figure. The bulb is located at the focus and the opening at the focus is 18 cm. Find an equation of the parabola. Let V be the origin. Find the diameter of the opening |CD|, 19 cm from the vertex.
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 FIGURE 1.png)
Mathematics
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Solve the equation using the Addition Property of Equality. Be sure to check your solution.y - 22.5 = -3.7
A. {18.3} B. {25.7} C. {26.2} D. {18.8}
Mathematics
Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = x2 + 14x + 1
A. f(x) = (x - 7)2 + 148 vertex: (7, 148) B. f(x) = (x - 14)2 + 393 vertex: (14, 393) C. f(x) = (x + 7)2 - 48 vertex: (-7, -48) D. f(x) = (x + 7)2 - 146 vertex: (-7, -146)
Mathematics
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics
Write a quadratic equation in standard form with the given solution set.{-
, 
}
A. x2 + 2
x - 3 = 0
B. x2 + 3 = 0
C. x2 - 2
x + 3 = 0
D. x2 - 3 = 0
Mathematics