16. Evaluate without using mathematical tables or a calculator, 0.0084 X1.23X3.5
2.87X0.056
Express your answer as a single fraction.

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)