Question 2

no stupid answers, need asap. 25 points up for grabs and brainliest answer will be given!

Step-by-step explanation:

Start by moving the 3 to the other side of the equals sign to get

so with that replacement:

By the Zero Product Property,

or

Yes these are both the same, so we only need one of them.  Once we find the angle, they are both the same, so we only need one of these equations.

If

, take the inverse tangent of both sides to give you:

and

so

Tangent increases in increments of pi or 180, so the other angle within the given interval is 35.8 + 180 = 215.8

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

here is your mark brainliest