Answer:
its either b or d
Step-by-step explanation:
19. The balloon hits the ground means -16t2+25t+3=0
After you solve the equation, there are 2 solution ~1.67 or ~-0.11 (the time can not be negative) so the solution is 1.67s
20.substitute t=1 to the function -16(1)2+25(1)+3=-16+25+3=12 ft. So the height is 12ft when t=1
Solve (2x - 1)(3x^2 - 9x - 4)
=
The answer of 45.23 and 7.4 is 334
