Answer:
yes
Step-by-step explanation:
Y=-2x^2+2x-4. Should be correct
Answer:
vyuWYIRTG3ñwyiehg
Step-by-step explanation:
the height:

(with g being the gravitational acceleration)
This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.
Doing so leads to the answer [3 -12 15 -21]
Side note: I'm assuming the matrix given to you has 1 row and 4 columns.