A boat has a speed of 9 mph in cold water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same dist
1 answer:
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Answer:
30888*10^8
Explanation:
concept used
law of exponent
____________________________
1.32 x 10^8 X 2.34 10^4
multiplying 1.32 and 2.34 we have
1.32*2.34 = 3.0888
10^8 X 10^4 = 10^(8+4) = 10^12
thus,
1.32 x 10^8 X 2.34 10^4 = 3.0888*10^12
3.0888 can be written as 30888/10000
1.32 x 10^8 X 2.34 10^4 = 30888/10000*10^12
10000 = 10^4
1.32 x 10^8 X 2.34 10^4 = (30888/10^4)*10^12
concept used now
1.32 x 10^8 X 2.34 10^4 = 30888*10^(12-4)
1.32 x 10^8 X 2.34 10^4 = 30888*10^8
thus, answer is 30888*10^8