Question

13. Perform the indicated operations and round off your answers to the proper number of significant digits. Assume that all numbers were obtained from measurements.

(a) 18.56 + 1.233 = (b) 1.234 x 0.247 =



(c) 4.3 / 8.74= (d) 8.6490-2.8964 =



(e) 0.0043 + 1.23 = (f) 1.87 x 13.00 =



(g) 30.5 + 80.8 = (h) 0.002 / 4.83 =

Answer 1

Step-by-step explanation:

(a) 18.56 + 1.233 = 19.79 (round to 4 significant digits)

(b) 1.234 x 0.247 = 0.305 (round to 3 significant digits)

(c) 4.3 / 8.74= 0.492 (round to 3 significant digits)

(d) 8.6490-2.8964 = 5.75 (round to 3 significant digits)

(e) 0.0043 + 1.23 = 1.23 (round to 3 significant digits)

(f) 1.87 x 13.00 = 24.3 (round to 3 significant digits)

(g) 30.5 + 80.8 = 111.3 (round to 4 significant digits)

(h) 0.002 / 4.83 = 0.000413 (round to 4 significant digits)