Which is the biggest number? 1. 4 × 10−8 2. 4 × 10−18 3. 3.0 × 10−18 4. 3 × 10−8?

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?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two