Express the following values in scientific notation, keeping the proper number o

Question

Express the following values in scientific notation, keeping the proper number of 5 pts) significant figures. a) 146,000,000 b) 0.000259 c) 0.88 d) 33,003 e) 57 Complete the following calculations, keeping the proper number of significant figures in the answer (this is the rounded answer). Show your answer both before and after rounding. You need not show your work. Unrounded Rounded a) 1.11 + 1 + 2.019 = b) 6.7 times 0.1 times 9.888 times 2.00 = c) (5.2 + 5.31) times 7.3 = d) 42.83/pi^2 = e) (5952 times 0.107)/(14 times 295) =

Explanation / Answer

A.

146000000 = 1.46*10^8

0.000259 = 2.59*10^-4

0.88 = 8.8*10^-1

33003 = 3.3003*10^4

57 = 5.7*10^1

2.

A. unrounded = 4.129

Rounded = 4

B. Unrounded = 13.24992

Rounded = 10

C. Unrounded = 76.65

Rounded = 77

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