Evaluate the expression without using a calculator.ln e9
A. log 9
B. -9
C. 9
D. 
Answer: C
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Solve.A train traveled m mi at a speed of s mph. A bus following the same route traveled 7 mph slower. How much longer did the bus take than the train to make this trip? Write the answer as a single rational expression.
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Find the slope of the line tangent to the graph of the function at the given value of x.y = x2 - 6x + 4; x = -3
A. - 6 B. -8 C. -12 D. -6
Write the following in exponential form. Assume that all variables represent positive values.
A. 
B. (5m + 9)-6/5
C. (5m + 9)5/6
D. (5m + 9)6/5
The numbers of hours required to manufacture and test each of two models of heart monitor are given in Table 1, and the number of hours available each week for manufacturing and testing is given in Table 2. Table 1 Hours Required per Unit Model AModel BManufacturing2340Testing2928 Table 2 Hours Available Manufacturing361Testing343 How many of each model can be manufactured each week? Select the correct answer, if a and b are the numbers of the model A and B. ?
A. 8 of model A, 5 of model B B. 8 of model A, 7 of model B C. 7 of model A, 7 of model B D. 7 of model A, 5 of model B E. 9 of model A, 5 of model B