Solve the problem.The graph below shows the height of sand in an hourglass at various times. Use the graph to find the average rate of change of the height of the sand. The Height of Sand in an Hourglass 
A. 0.75 mm per second
B. 1.3 mm per second
C. 1 mm per second
D. 0.85 mm per second
Answer: A
Mathematics
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Solve the equation.
(6x - 12) = 
(16x - 8)
A. -1
B. 1
C. -8
D. 
Mathematics
Multiply.
2
A. s2 - 8s + 16
B. s2 - 
s + 
C. s2 - 
s + 
D. s2 - 
s + 
Mathematics
Solve the equation by completing the square.16x2 - 3x + 1 = 0
A. 
B. 
C. 
D. 
Mathematics
Write the vector v in terms of i and j whose magnitude 
and direction angle ? are given.
= 6, ? = 180°
A. v = -6i - 6j B. v = 6j C. v = -6i D. v = -6j
Mathematics