Beams of light parallel to the axis of the parabolic mirror shown in the figure strike the mirror and are reflected. Find the distance from the vertex to the point where the beams concentrate.
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ft, 
ft
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The focus is __________ in. from the vertex on the axis of the parabola.
Fill in the blank(s) with the appropriate word(s).
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Mathematics
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A. 625 B. 25 C. 17.5 D. 312.5
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Solve.What percent of 1.6 is 0.04?
A. 2.5% B. 4000% C. 0.025% D. 40%
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Find the amplitude, period, or phase shift of the given function as requested.Find the amplitude of y = 5 sin 3
.
A. 5
B. 15
C. 3
D. 
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Write a matrix equation equivalent to the system of equations. x + y + z = -4 4x - 4y - 3z = -4-4x - 3y - 2z = 4
A. 
=
B. 
= 
C. 
=
D. 
= 
Mathematics