1. Why dose the author begin the unit with the example of the skyscraper?

2. Which of the following explains how technology and engineering are related?

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota