Solve the problem.The purchasing power of a dollar is decreasing at the rate of 4.9% annually, compounded continuously. How long will it take for the purchasing power of $1.00 to be worth $0.74? Round answers to the nearest hundredth.
A. 0.61 yr
B. 6.15 yr
C. 0.06 yr
D. 15.10 yr
Answer: B
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Write in scientific notation.0.00000036002
A. 3.6002 × 10-6 B. 3.6002 × 106 C. 3.6002 × 107 D. 3.6002 × 10-7
Solve the problem.The following table shows the number of resistors, in thousands, produced by Allied Electronics in 3 recent years. 
Fit a quadratic function f(x) = ax2 + bx + c to the data. What is the value of b?
A. 12 B. 10 C. 11 D. 9
Graph the equation and give the coordinates of the vertex.y = -5x2 
A. (0, 0)
B. (0, -5)
C. (0, 0)
D. (0, 0)
Arc length The minute hand of a clock is 1.2 centimeters long. How far does the tip of the minute hand travel in 30 minutes? ? If the answer needs rounding, round it to three significant digits. ? __________ centimeters
What will be an ideal response?