2021
Mathematics
JAMB
Correct 241.34(3 x 10-3 )22 to 4 significant figures
A.
0.0014
B.
0.001448
C.
0.0022
D.
0.002172
Correct Answer: 0.002172
Explanation
first work out the expression and then correct the answer to 4 s.f = 241.34..............(A) (3 x 10-3)2............(B) = 32x2 = 1/103 x 1/103 (Note that x2 = 1/x3) = 24.34 x 32 x 1/106 = 2172.06/106 = 0.00217206 = 0.002172(4 s.f)
first work out the expression and then correct the answer to 4 s.f = 241.34..............(A) (3 x 10-3)2............(B) = 32x2 = 1/103 x 1/103 (Note that x2 = 1/x3) = 24.34 x 32 x 1/106 = 2172.06/106 = 0.00217206 = 0.002172(4 s.f)THIS WEEK's
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