A machine produces bolts which are N(4, 0.09), where measurements are in mm. bolts are measured accurately and any which are smaller than 3.5 mm or bigger than 4.4 mm are rejected. Out of a batch of 500 bolts how many would be acceptable?

1. A sample of an unknown solid is found to have a volume of 24.3 cm and a mass of 217.0 grams. What is the density of the unknown? Round to the nearest hundredths.

16. LA = x+ 2 and ZB = 2x + 4. ZA ZB What is the measurement of ZA? A. 30 degrees B. 60 degrees C. 90 degrees D. 120 degrees

For some measuring processes, the uncertainty is approximately proportional to the value of the measurement. For example, a certain scale is said to have an uncertainty of ±2%. An object is weighed on this scale. a) Given that the reading is 100 g, express the uncertainty in this measurement in grams. b) Given that the reading is 50 g, express the uncertainty in this measurement in grams.