The dry sand in the bunker needs to be dug ou new sand is needed to replace it. The following The density of dry sand is 144.2 Kg per r The truck hired to remove and deliver th per trip. Using this information, calculate the number o the sand dug out of the bunker and deliver the 1. Find the volume of sand needed to be 2. Find the Kg of sand needed. 3. Divide this by the amount per trip.

A. A figura é composta de quatro circunferências concêntricas com raios medindo \( 1 \mathrm{~cm}, 2 \mathrm{~cm}, 3 \mathrm{~cm} \) e 4 cm . Determine as áreas das coroas circulares destacadas na figura.

8. Haga una tabla de valores y trace la gráfica de la ecuación. \( \begin{array}{lll}\text { 4a) } y=-x+4 & \text { c) } y=x^{2}+2 & \text { e) } y=\sqrt{x+4} \\ \text { b) } 2 x-y=6 & \text { d) } y=x^{2}-9 & \text { f) } y=|x|\end{array} \)

330 Marhematios Applications Unit 2 CHAPTER ELEVEN REVIEW EXERCISE This review exercise should be completed without the aid of a calculator. \( \begin{array}{ll}\text { A straight line has the equation } 3 x+2 y-13=0 & \text { (b) Determine the coordinates of the } x \text {-intercept of } \\ \text { (a) Determine the slope of this line. } & \text { this line. }\end{array} \)

Para cercar totalmente um curral de forma circular, foram necessários \( 62,8 \mathrm{~m} \) de cerca. Qual é a área desse curral?

e monthly cost (in dollars) of water use is a linear function of the amount of water used (in hundreds of cuble feet, HiCF). The cast for using IS HCF of water is 5.18 , and the cost for using 49 HCF is \( \$ 87.88 \). What is the cost for using 46 HCF of water?