Which of the following statements is always true of supplementary angles? Supplementary angles have measures that add up to 90,
Supplementary angles are congruent
Supplementary angles are adjacent
Supplementary angles have measures that add up to 180

What number should be added to both sides of the equation to complete this square? x^2-10x=7

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Is the square root of 4 plus the square root of 16 rational?