Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 5 feet from the base along the axis of symmetry and the opening is 8 feet across, how deep should the searchlight be?
A. 3.2 ft
B. 1.6 ft
C. 4 ft
D. 0.8 ft
Answer: D
Mathematics
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Solve the equation.x + 2 = 20
A. x = 18 B. x = 22 C. x = 8 D. x = 40
Mathematics
Solve the problem.Production of television sets is given by P = 100
-3, where x is work hours and y is the amount of capital. If 27 work hours and 27 units of capital are used, what is the production output?
A. 4805 B. 48 C. 11,208 D. 112
Mathematics
Find the area of the geometric figure.
Use 
for ?.
A. 282
sq mi
B. 25457
sq mi
C. 6364
sq mi
D. 565
sq mi
Mathematics
Find the present value of the future amount. Assume 365 days in a year. Round to the nearest cent.$16,000 for 6 months; money earns 6.9%
A. $14,967.26 B. $15,552.86 C. $15,931.00 D. $15,466.41
Mathematics