Suppose that the monthly cost in dollars of mining a certain ore is related to the number of pieces of equipment used, according to the following, where x is the number of pieces of equipment used. 860,000 C = 45,000x + x> 0 Using how many pieces of equipment will minimize the cost? (Assume only whole numbers of equipment can be used.) Iniccos of oguinmont

Graph the following function and give the following: •concavity and points of inflection •sketch the curve

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A trough is 16 ft long and its ends have the shape of isosceles triangles that are 3 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 14 ft3/min, how fast is the water level rising when the water is 6 inches deep? Step 1 Let h be the water's height and b be the distance across the top of the water. Using the diagram below, find the relation between b and h. 3 h Step 2 The volume of the water is as follows. V = 16 8 (3h)(h) 24h 24h?