A ) h = -16 t² + 135 t + 76
Let : h = 0
0 = - 16 t² + 135 t + 76
B ) t 1/2 = (-b+/- √ ( b² - 4 ac ) / ( 2 a )
t 1/2 = (-135 - √(18,225 + 4,864))/ (-32) = ( - 135 - 151.95) / (- 32)=
= (-286.95) / (- 32) = 9.967 ≈ 9.0 s ( other solution is negative )
Answer:
2) 0 = -16 t² + 135 t + 76; 9 s
Answer:
1.27/50
2.3/4
3.31/100
4.25/46
5.25/48
I know this because I got them right when I took the quiz
Step-by-step explanation:
Answer and Step-by-step explanation:
Although the question is not complete, but with the context of the question, they are most likely going to ask for the total distance travelled or the total time or speed. So let's work on that.
Total time travelled = (3 + 5 + 4) = 12mins
Total speed travelled = (0.50 + 0.00 + 0.40)miles/min = 0.90mile/min
The 0.00 represents the period he was at rest admiring an antique car. At this moment, he was not moving so his speed is 0.
Total distance travelled = total speed x total time = 0.90miles/min x 12min = 10.8miles
Answer:
12.5
30
68.5
Step-by-step explanation:
Answer:
hope it helps.
stay safe healthy and happy.
