A ship captain is mapping a trip and wants to know the distance the ship will travel over certain time intervals. time (hours)distance (miles). 0.5, 12.5. 1, 25. 1.5, 37.5. Assuming that the ship travels at a constant speed, what is its speed? ... You can see that every 30 minutes or 0.5 hours, the ship's distance ...
6hours × 3 (triple means 3) so 6×3=18
Answer:
Rational
Step-by-step explanation:
The number 5/3 is a rational number because 5 and 3 are integers and 3 is not equal to zero.
Answer:
4.50 s
Step-by-step explanation:
The motion of the ball is represented by the following equation:
(1)
where
h(t) is the elevation at time t
2 ft is the initial elevation at t = 0
+70 ft/s is the initial vertical velocity
is the acceleration due to gravity
The green is located at an elevation of -7 feet, so the ball lands on the green when
h(t) = -7
Substituting into (1)
And re-arranging we get
This is a second-order equation in the form
which has solutions
(2)
Here we have:
a = 16
b = -70
c = -9
Substituting into (2) we find the solutions:
The two solutions are:
t = 4.50 s
t = -0.125 s
The second solution is negative, and since negative time has no physical meaning, the only correct solution is
t = 4.50 s