Helll ! what is the standard form of 3.9183×10^7

Which of the binomials below is a factor of this trinominal? x^2-13+30

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.