Find the average rate of change of the function over the given interval. y = x2 + 7x, [3, 9]
A. 16
B. 
C. 24
D. 19
Answer: D
Mathematics
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The average cell cycle time for a bacterium is 40 min. Find the probability that the bacterium divides in under 35 min.
What will be an ideal response?
Mathematics
Write the equation of the line with the given slope and y-intercept. Write the equation in slope-intercept form.Slope = - 
; y-intercept is (0, 6)
A. y = - 
x - 6
B. y = 
x + 6
C. y = 
x - 6
D. y = - 
x + 6
Mathematics
Solve the given application problem.An employee was paid $24,114 during the first half of last year. During the second half she was paid 
How much more was her income during the second half?
A. $40,320 B. $40,331 C. $88,559 D. $88,548
Mathematics
Factor completely.x2 + 2xy - 8y2 = (x + 4y)( 
)
A. x + y B. x - 2y C. x + 2y D. x - 2y2
Mathematics