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

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Find the solution(s) to x^2-14+49=0

Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.