An ant looks up to the top of a tree with an angle of elevation of angle of elevation is 38 degrees. if the ant is 43 feet from the base of the tree, what is the height of the tree, to the nearest tenth?

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?

36 inches/second = yards/minute how many yards?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?