Answer:
x=0.75
Step-by-step explanation:
Hope this helps!
Answer:
2 hour 50 minutes
Step-by-step explanation:
Given data: Departure = 5:30 pm MST, Arrive = 9:20 pm CST
Note that MST is the time zone 1 hour before CST.
Let us convert MST into CST.
Departure = 5:30 pm MST = 6:30 pm CST
Total time travel = Departure – Arrival
= 9.20 pm MST – 6.30 pm MST
= 2 hour 50 minutes
Hence, total time travel is 2 hour 50 minutes.
D and 3, sorry if wrong hahaha
Answer:
5/8
Step-by-step explanation:
20:32 .... 10:16..... 5:8.
Answer:
The ball will be at 100 feet at time x=0.5 sec and at time x=7.5 sec
Step-by-step explanation:
<u><em>The correct question is</em></u>
A ball is launched upward from a height 40 feet above ground level. the ball's height at t seconds is given by h(t)=-16t^2+128t+40 At what time(s) will the ball be at 100 feet?
we have

so
For h(t)=100 ft
substitute in the equation and solve for x


The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
therefore
The ball will be at 100 feet at time x=0.5 sec and at time x=7.5 sec