Y= (1/2)x + cosx on the interval -2 pi ≤ x ≤ 2 pi. use the second derivative test ti find the local extrema of f

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?

Which number line represents the solution set for the inequality -1/2x> 24?

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl