Find y when x=4 and z=15; if y varies jointly as x and z y=5 when z=8 and x=10
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Answer:
254.4 in²
Step-by-step explanation:
Area of a circle is given by the formula:
Our radius is 9 so we substitute this into the equation:
π(9)² = 81π
81π = 254.4 in²