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
Answer:
A
Step-by-step explanation: Just took test
Sqrt 73 = 8.54 (thats rounded to nearest hundredth)
Answer:
-4
Step-by-step explanation:
You multiply -13*-4=52
B it is not because it fails the vertical line test
