Find the limit, if it exists. 
What will be an ideal response?
Does not exist
Mathematics
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Determine whether the given number is approximate or exact.The blackboard in the mathematics classroom is 81 inches long.
A. Exact B. Approximate
Mathematics
Convert the repeating decimal to a fraction.0.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Between 7:00 AM and 8:00 AM, trains arrive at a subway station at a rate of 15 trains per hour 
per minute). The following formula from statistics can be used to determine the probability that a train will arrive within t minutes of 7:00 AM. F(t) = 1 - e-0.25tDetermine how many minutes are needed for the probability to reach 90%.
A. 9.21 min B. 4.53 min C. 0.38 min D. 2.97 min
Mathematics
Divide and simplify.
÷ 
A. 
B. 
C. 
D. (z + 3)(z - 8)
Mathematics