In science class, Paula estimates the volume of a sample to be 23 mL. The actual volume of the sample is 28 mL. Find the percent error of Paula’s estimate. Round your answer to the nearest tenth.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.