Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 3 feet from the base along the axis of symmetry and the opening is 10 feet across, how deep should the searchlight be?
A. 6.3 feet
B. 0.5 feet
C. 8.3 feet
D. 2.1 feet
Answer: D
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Solve the problem.How many ways can a committee of 3 be selected from a club with 12 members?
A. 1320 B. 220 C. 110 D. 6
Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. How many people became ill with this infection when the epidemic began?
A. 1043 people B. 1042 people C. 70 people D. 73,000 people
Write a recursion formula for the sequence.8, -48, 288, -1728, . . .
A. an = -5an-1, a1 = 8 B. an = -12an-1, a1 = 8 C. an = -6an-1, a1 = 8 D. an = -11an-1, a1 = 8
The following table contains input-output values for a function. Is this function linear?
A. Yes B. No