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The balloons can be inflated to have a radius of 12 centimeters, plus or minus 2 centimeters. Write an equation using absolute value to find the maximum radius and the minimum radius of the balloons, and then find the maximum radius and the minimum radius. Solve the equation, and justify each step.
12 – 2 ≤ radius ≤ 12 + 2 10 ≤ radius ≤ 14 maximum radius 12 + 2 =14 centimeters minimum radius 12 – 2 = 10 centimeters
Part E
The volume V of helium in a balloon can be found by using the formula V = r3, where r is the radius of the balloon. Using the radii that you found in Part D, find the maximum and minimum volume of helium in each balloon. Round your answers to the nearest cubic centimeter.
Sagot :
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