A ball is thrown upwards and it’s height h m,at time t s,is given by h=7t-4.9t2.How long does the ball spend more than 1.5m abov
e ground?
1 answer:
Answer: From what you wrote the I think the ball is drop
At time 0 you are 7 meters above ground
You basically just need to solve for
1.5 =7t-4.9t^2
by rearrange the equation you get
4.9t^2-7t+1.5=0
by using Quadratic Formula
t=1.166s
You might be interested in
Answer:
its blurry for me
Step-by-step explanation:
Answer:
Your answer is right. The sequence has a pattern of -4 every time, so it's A
What I'm getting out of it is that you want to know how much he spent in all and if you mean that he spent $95.37 in all.
I hope I helped :)
Answer:
432
Step-by-step explanation:
The formula for volume of a rectangular prism is length x width x height
V = lwh
V = 8 x 6 x 9
V = 432
Answer:D= 60miles
Step-by-step explanation:
Speed=distance/time
Distance = speed× time
D=(45-30)× 4
D= 15×4
D= 60miles
