Solve.A swimmer swims the 200m backstroke in 2.22839 minutes. Round her time to the nearest hundredth.
A. 2.23 minutes
B. 2.22 minutes
C. 2.24 minutes
D. 2.228 minutes
Answer: A
Mathematics
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ds, C is the curve r(t) = (-4 - t)i + 2tj - 2tk , 0 ? t ? 1
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