Solve the problem.The growth rate of a certain tree (in feet) is given by y = 
+ e-t2/2 , where t is time in years. Estimate the total growth of the tree through the end of the second year by using Simpson's rule. Use 2 subintervals. Round your answer to the nearest hundredth.
A. 3.68 ft
B. 5.11 ft
C. 2.34 ft
D. 3.41 ft
Answer: D
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Write the numbers in numerical order, smallest to largest.9, -11, 23, -20, 1
A. -11, -20, 1, 9, 23 B. 23, 9, 1, -11, -20 C. 1, 9, 11, 20, 23 D. -20, -11, 1, 9, 23
Find the exact value of cos(x-y) given that sec x = 3 / 2, csc y = 3, and x and y are in quadrant 1.
What will be an ideal response?
Find the center of mass of a thin plate covering the given region with the given density function.The region between the curve y = 
and the x-axis from x = 1 to x = 9, with density ?(x) = 
A. 
= 5, 
= 
B. 
= 5, 
= 
C. 
= 6, 
= 
D. 
= 5, 
= 
Solve the system by the elimination method or a combination of the elimination and substitution methods. x2 - xy + y2 = 32x2 + xy + 2y2 = 12
A. {(1, 0), (-1, 0)} B. {(2, 0), (-2, 0), (1, 0), (-1, 0)} C. {(2, 1), (-2, -1), (1, 2), (-1, -2)} D. {(2, 1), (1, 2)}