Which of the following numbers belong to the set of complex numbers and the set of imaginary numbers? select all that apply. (3 total)

a. 3i
b. -5i
c. 6-i
d. √21
e. -√16
f. √-14

i believe it's a, b, and c.

Write a corresponding real world problem to represent 2x - 125=400

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem