The SR-71 "Blackbird" is one of the world's fastest aeroplanes. It is capable of travelling at a
cruising speed of three times the speed of sound. The speed of sound is approximately 760 miles per
hour. The speed of SR-71 in scientific notation in miles per hour is _
b) 228 x 103
c) 7.6 x 103
d) 76 x 103
a)2.28 x 103
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3.5 is the answer
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