Solve the problem.A bacterial culture has an initial population of 10,000. If its population declines to 7000 in 2 hours, what will it be at the end of 4 hours? Assume that the population decreases according to the exponential model.
A. 4900 bacteria
B. 1500 bacteria
C. 9031 bacteria
D. 2450 bacteria
Answer: A
Mathematics
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Solve the equation.-9.2q + 1.6 = -27.6 - 1.9q
A. 3.4 B. -36 C. 4 D. 3.2
Mathematics
Provide an appropriate response.Give the x-intercept of the equation: 3x - 2y = 6
A. (0, 2) B. (0, -3) C. (2, 0) D. (2, -3)
Mathematics
The histogram shows the scores of each participant in a game from a total of 100 participants. Use the histogram to answer the question. 
How many more participants scored 80-99 than 0-19?
A. 32 participants B. 16 participants C. 4 participants D. 10 participants
Mathematics
Solve the equation using the square root property.x2 - 81 = 0
A. {-9} B. {81} C. {9} D. {9, -9}
Mathematics