168140052-Civil-Engineering-Quiz-Bee-Questions-I.docx

4 the scale on the map is 1x a lot having an area of

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4. The scale on the map is 1:x. A lot having an area of 640 sq. m. is represented by an area of 25.6 sq. cm. on the map. What is the value of x? 5. Solve for x: x x x x x ¿¿ ¿ = 7 6. When the 3-digit numbers 5a4 and 3b4 are added together, the sum is divisible by 9. What is the maximum value of a+b? 7. If x + y = m, and xy = n, what is the value of x 2 + y 2 ? 8. A polygon having 70 sides is called ______________. 9. Given three angles A, B, and C whose sum is 180 . if tanA + tanB + tanC = x, find the value of SCORE
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tanA x tanB x tanC. 10. Gerald and Leslie can do a certain job in 3 hrs. On a given day, they worked together for 1 hour then Leslie left and Gerald finishes the rest of the work in 8 more hours. How long will it take for Gerald to do the job alone? AVERAGE ROUND (5 QUESTIONS, 3 PTS EACH) 1. A petal is formed by the intersection of the two circles of radius 4 with centers at (0,4) and (4,0). Find the area of the petal. 2. A diving board weighing 280N is 3m long. It is supported at a point 1.0m from the end and a diver weighing 500N stands at the free end. Determine the magnitude of the force acting on the point of support. 3. A solution was prepared by dissolving 5.8g sodium sulfate in water to make 100mL solution. Find the molality of the solution if MM sol = 142 g/mol and ρ = 1.2 g/mL.
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