Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 2 feet from the base along the axis of symmetry and the opening is 12 feet across, how deep should the searchlight be?
A. 18 ft
B. 9 ft
C. 0.2 ft
D. 4.5 ft
Answer: D
Mathematics
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Find an equation of the line passing through the two given points.(5, 37) and (2, 19)
A. y = - 
x + 
B. y = 
x + 
C. y = -6x + 67
D. y = 6x + 7
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Use the indicated property to provide a new expression equal to the given expression. Simplify, if possible.z + 0; identity
A. 0 + z B. z C. 0 D. 1
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Use the formula for the nth term to find r.a = 243, r > 0, a5 = 3
A. 
B. 
C. - 
D. 3
Mathematics
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Mathematics