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4) A building casts a shadow 10m long. If the angle from the tip of the shadow to a point on top of the building

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4) A building casts a shadow 10m long. If the angle from the tip of the shadow to a point on top of the building is 30, how high is the building? Round your answer to the nearest tenth of a meter. hs 5) Solve the following equation (HINT: use a substitution) 32x - 9(3*) + 20 = 0 6) Suppose you have $50,000 to invest for five years in one of two accounts. Account A earns 5.1% annual interest compounded quarterly and account B earns 5% annual interest compounded continuously. What would be the amount in each account, rounded to the nearest penny? Which of the two accounts provides a better yield?1) Let f (x) = x2 + 4x and g(x) = 6x - 2. Find each of the following: a ) (f + g ) ( 2 ) b ) (f - g ) ( x ) c ) (fg ) (- 1) d ) (= ) ( - 2 ) e) (fog) (x) H f) (g . f ) (1 ) 2) Let f (x) = V2x - 6 and g (x) = -. Find each of the following: a) Domain of f in interval notation b) Domain of g in interval notation c) Domain of (f + g) in interval notation

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