Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where t is time in days. Find the number of bacteria when 
and 
.
A. 8400; 5,250,000
B. 8400; 168,000
C. 8400; 26,250,000
D. 42,000; 5,250,000
Answer: A
Mathematics
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For the quadratic function, tell whether the graph opens up or down and whether the graph is wider, narrower, or the same shape as the graph of 
f(x) = 3x2 - 5
A. Up; wider B. Down; wider C. Down; narrower D. Up; narrower
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Determine whether the test point is a solution to the linear inequality.(-2, 1), -x - 3y ? -1
A. Yes B. No
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Translate the phrase to an algebraic expression. Let x represent the unknown number.Three-fourths of a number
A. 
- x
B. 
x
C. 
÷ x
D. 
+ x
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
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