Solve the problem.The table shows the number of new cases (in thousands) of a certain disease diagnosed in a country in various years. 
Let f(t) be the number of new cases (in thousands) of the disease diagnosed at t years since 2010. Suppose that you wish to model f using a quadratic equation. What is the vertex of the model? What does it mean in this situation?
A. (3, 39.3); the smallest number of new cases diagnosed was 39,300 in the year 2013
B. (0, 49.4); the largest number of new cases diagnosed was 49,400 in the year 2010
C. (0, 39.3); the smallest number of new cases diagnosed was 39,300 in the year 2010
D. (7, 45.7); the largest number of new cases diagnosed was 45,700 in the year 2017
Answer: A
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Express the rational number as a terminating or repeating decimal number.
A. 0.8
B. 3.
C. 3.8333
D. 3.8
For the following question(s), refer to the digraph below.
Vertex D is
A. incident to vertex E only. B. incident to vertex C only. C. incident to vertex A, B, C, and E. D. incident to vertices C and E. E. none of these
Find the dot product v ? w.v = 5i - 3j, w = 8i + j
A. 43 B. 0 C. 37 D. -19
Solve the problem.How long does it take $1125 to triple if it is invested at 7% interest, compounded quarterly? Round your answer to the nearest tenth.
A. 15.8 mo B. 15.8 yr C. 18.1 yr D. 18.1 mo