germainenez8403
12.12.2021 •
Mathematics
A 10,000-kg freight car coasting at 10 m/s collides with 2000-kg automobile coasting at 30 m/s in the opposite direction. If the stick together after the impact how fast and in what direction will they be moving?
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Ответ:
4x^5-16x^3+x^2-4
Step-by-step explanation:
f(x)= 0.5x^2-2
g(x)=8x^3+2
(f*g)(x)=(0.5x^2-2)(8x^3+2)
=(0.5x^2*8x^3)+(0.5x^2*2)-(2*8x^3)-(2*2)
=4x^5-16x^3+x^2-4