Find 3 + (-9) 1. should you add or subtract 3 and 9? why? 2. is the sum positive or negative?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

The measure of an angle is 117°. what is the measure of a supplementary angle?

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%