19 is the answer since 2 to the 2nd power is 4 5×4=20 -1 to the 2nd power is -1
20-1=19
Answer:
50.3
Step-by-step explanation:
Volume = pi * h * r^2 *** Diameter = 2 * radius
<em>Substitute</em>
Volume = pi * 4 * (4/2)^2
<em>Simplify</em>
Volume = pi * 4 * 4
<em>Simplify</em>
Volume = 16 pi, which is approx. 50.3
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