Use the given information to answer the question.The number N, in millions of Americans of age x with arthritis, is estimated with the following graph. 
Approximately how many 40-year-olds and 55-year-olds combined have arthritis?
A. 31,400,000
B. 400,000
C. 4,100,000
D. 3,600,000
Answer: D
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High-degree polynomials may have many zeros.
Answer the following statement true (T) or false (F)
A delivery truck must deliver furniture to 4 different locations (A, B, C, and D). The trip must start and end at A. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The nearest-neighbor tour starting with vertex A is given by:
A. A, B, D, C, A. B. A, C, B, D, A. C. A, D, B, C, A. D. A, D, C, B, A. E. none of these
Answer the question.Which order of differentiation will calculate fxy faster, x first or y first?f(x, y) = y ln(x) - 2 sin(x)
A. y first B. x first
Given matrix A, find the indicated cofactor.Find A34.A = 
A. 144 B. 288 C. 0 D. -144