Step-by-step explanation:
#5
(f+g) (x) = x³-2x²+1 + 4x³-5x+7
= 5x³-2x²-5x+8 (option D)
Answer:
7 m^2
Area of the triangle =(height x base ) /2
A=(17x12)/2
A=102
the area of the triangle is 102