Graph.
- 
= 1
A. 
B. 
C. 
D. 
Answer: B
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Solve the equation.-19 = 30 + f
A. f = -49 B. f = 11 C. f = -11 D. f = 49
Define T: R2 ? R2 by T(x) = Ax, where A is the matrix defined below. Find the requested basis B for R2 and the corresponding B-matrix for T.Find a basis B for R2 and the B-matrix D for T with the property that D is a diagonal matrix.A = 
A.
B = 
, D = 
B.
B = 
, D = 
C.
B = 
, D = 
D.
B = 
, D = 
Solve the problem. Give the answer to the nearest tenth.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 19 meters?
A. 3.7 sec B. 20.0 sec C. 66.5 sec D. 3.9 sec
Solve the problem.The function f(t) = -0.14t2 + 0.52t + 31.9 models the U.S. population in millions, ages 65 and older, where t represents years after 1990. The function g(t) = 0.5t2 + 12.49t + 106.8 models the total yearly cost of Medicare in billions of dollars, where t represents years after 1990. What does the function 
represent? Find 
(10).
A. Cost per person in thousands of dollars. $12.19 thousand B. Cost per person in thousands of dollars. $0.18 thousand C. Cost per person in thousands of dollars. $9.11 thousand D. Cost per person in thousands of dollars. $0.08 thousand