Solve the problem.Suppose an object moves along the y-axis so that its location is y = f(x) = x2 + x at time x (y is in meters and x is in seconds). Find the average velocity (the average rate of change of y with respect to x) for x changing from 2 to 9 seconds.
A. 3 m/s
B. 12 m/s
C. 15 m/s
D. 84 m/s
Answer: B
Mathematics
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Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated.Subtract (3x - 30y) from the sum of (-2x + 3y) and (9x - 12y).
A. 8x + 45y B. 10x - 39y C. 4x + 21y D. -4x - 21y
Mathematics
Evaluate the sum: 
a. 28 b. 5 c. 2 d. 56
Mathematics
Three farmers each grow wheat, oats, and corn. The matrix summarizes the number of bushels (in thousands that each one produced).
Use matrix multiplication to find the total income of each farmer if the price per bushel are: Wheat, $3.20; oats, $1.40; and corn $2.60.
What will be an ideal response?
Mathematics