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1. Determine the equatio 2. 2. Given y = x 2 + 2 a. Find roots of the given equation. b. Find the y-intercept. 3. Given that mass m of a sphere is directly proportional to the cube of its radius r and m = 54 when r =3, find the value of m when r = 4. Determine the equation of the line shown in the graph below. Working: + 2x – 8 Find roots of the given equation. intercept. Given that mass m of a sphere is directly proportional to the cube of its radius r and m = 54 when r =3, find the value of m when r = 4. n of the line shown in the graph below. intercept. Given that mass m of a sphere is directly proportional to the cube of its radius r and m = 54 when r =3, find the value of m when r = 4. 4. Freestyle skiers train by skiing up a specially constructed ramp toward a jump. The ramp can be lengthened, creating two right triangles. a) What is the height of the short ski ramp, x, to the nearest inch? b) What is the measure of ∠θ, to the nearest degree? c) What is the length of the long ramp, y, to the nearest inch? 5. 6. 7. The graph shows the rate of rainfall, in mm per hour, one afternoon last year. ………………………………………………………… ………………………………mm per hour 8) If x² – y² = 9, and x – y = 1, what is the value of x + y? 9) What is the least positive integer k for which 15k is the cube of a number? 10) 11)

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