Solve the problem.For a culture of 30,000 bacteria of a certain strain, the number of bacteria N that will survive x hours is modeled by the formula N = 3000
. After how many hours will 27,000 bacteria survive?
A. 73 hr
B. 19 hr
C. 91 hr
D. 81 hr
Answer: B
Mathematics
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For what values of x does the series converge conditionally?
A. x = 0
B. x = 
C. x = - 
D. None
Mathematics
Provide an appropriate response.When asked to describe logarithms in one simple sentence, the teacher said, "Logarithms are exponents". What is meant by this sentence?
What will be an ideal response?
Mathematics
Estimate the answer by rounding as indicated.Estimate by rounding to the nearest ten.
A. 130 B. 40 C. 37 D. 30
Mathematics
Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a12 when a = 4, r = 2.
A. 8192 B. 16,384 C. 26 D. 8196
Mathematics