The measures in degrees of the three angles of a triangle are given by 2x+1, 3x - 3 , and 9x. what is the measure of the smallest angle?
a - 13°
b - 27°
c - 36°
d - 117°

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no