Determine if the graph of the function is concave up or concave down.y = (x + 2)2
A. Concave down
B. Concave up
Answer: B
Mathematics
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Find the derivative of the function at the given point in the direction of A.
A = 12i - 5j
A. 
B. 
C. 
D. 
Mathematics
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.32x + 2.57 B. y = 0.30x + 4.29 C. y = 0.30x + 2.57 D. y = 0.32x + 4.29
Mathematics
Use an associative property to complete the statement.(-5r) ? s = 
A. -5 ? (rs) B. (rs) ? (-5) C. 5 ? (-rs) D. s ? (-5r)
Mathematics
Solve the equation by first multiplying both sides through by an appropriate power of 10 so that the equation contains integers only.1.1x - 3 - 0.6x = 16.5
A. 39 B. 11.471 C. 33.6 D. 3.9
Mathematics