To Prove: m ∠1 = 90° - m ∠2 1. Ray ST is perpendicular to Ray SR. Definition of perpendicular lines 2. ∠RST is a right angle. Given 3. m∠RST = 90° Definition of right angle 4. m∠1 + m∠2 = m∠RST Substitution 5. m∠1 + m∠2 = 90° Angle addition theorem 6. m∠1 = 90° - m∠2 Subtraction property of equality

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.