Find the average velocity of the function over the given interval. y = x2 + 6x, [6, 9]
A. 45
B. 15
C. 7
D. 21
Answer: D
Mathematics
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Find the reciprocal of the given number.- 
A. 
B. 7
C. - 
D. - 
Mathematics
Convert the units.3 km2 = 
m2
A. 3000 B. 30 C. 3,000,000 D. 30,000
Mathematics
Solve the problem.Mark's typing speed is 68 words per minute. How many words can he type in 28 minutes?
A. 96 words B. 1804 words C. 1904 words D. 1914 words
Mathematics
Solve. Express your answer as a signed number.The population of a certain city decreased by 24,883 in 10 years. Find the average annual change in population.
A. -248.83 per year B. 248.83 per year C. -2488.3 per year D. 2488.3 per year
Mathematics