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

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

2. (09.01 lc) a function is shown in the table. x g(x) −3 17 −1 −3 0 −4 2 13 which of the following is a true statement for this function? (5 points) the function is increasing from x = −3 to x = −1. the function is increasing from x = −1 to x = 0. the function is decreasing from x = 0 to x = 2. the function is decreasing from x = −3 to x = −1.