.Help Please!

Is this a monomial, binomial, trinomial, or
polynomial? Explain

Polynomial

Step-by-step explanation:

=> x³ - 4x² + 1 + 3x² + x

=> x³ - x² + x - 1

This is a polynomial expression, as, there are 4 terms in the equation, viz., x³, x², x and -1.

Hope it helps.

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