QuestionIdentify significant figures in these values and round the numbers as indicated:
1. a) 1,234, b) 0.023, c) 890, d) 0.000120, e) 1090.0010, f) \$1,020,010\$, g)$9.010 \times 10^{-2}$, h) 1,000.
2. Round: a) $215.891(4)$, b) $34,509(3)$, c) 34 (1), d) 0.0047845 (3), e) 0.0399985 (2), f) \$0.0354800(5)\$.

Studdy Solution
Now let's round each number to the amount of significant figures indicated.
a) $215.891()$The fourth significant figure is8 and the digit after it is9 which is greater than5, so we round up. The rounded number is215.9.
b) $34,509(3)$The third significant figure is and the digit after it is5 which is equal to5, so we round up. The rounded number is34500.
c)34 (1) The first significant figure is3 and the digit after it is which is less than5, so we don't round up. The rounded number is30.
d) .0047845 (3) The third significant figure is7 and the digit after it is8 which is greater than5, so we round up. The rounded number is0.00479.
e) .0399985 (2) The second significant figure is3 and the digit after it is9 which is greater than5, so we round up. The rounded number is0.040.
f) $.0354800(5)$The fifth significant figure is8 and the digit after it is0 which is less than5, so we don't round up. The rounded number is0.03548.