The wavelength of violet light is a spectrum is about 0.4 meters. which number best approximates this length as a power of 10. i really need the correct answer

What is the solution to the division problem below x3+x2-11x+4/x+4

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?

Adriana had a garden where he measured the height of a corn plant. what. on the first day,it was 145 cm tall.after 2 weeks is grew by 23 cm.what is the height of the corn plant