In the diagram below, mZBDC = 100°, MZA = 50°, and m2DBC = 30°.

Which of the following is true?
a) AABD is obtuse
b) AABC is isosceles
c) MZABD = 80°
d) AABD is scalene

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?