30. A drawing of a sailboat was made using a rectangle and two right triangles, as shown. 6 cm 2 cm 3 cm 2.5 cm 12 cm What is the area of the drawing of the sailboat in square centimeters? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value. Kaunad​

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.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)