If you start at 6:45 and end at 3:28 how long is it between
1 answer:
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Answer:
inches.
Step-by-step explanation:
The level of a lake was 8 inches below normal.
Now, it is given that the water level decreases inches in June and
inches more in July.
Therefore, the new level of water with respect to the normal level will be
= - 8 - 1.25 - 2.375
= - 9.625 inches
= inches. (Answer)
Answer:
(a) 7.5 seconds
(b) The horizontal distance the package travel during its descent is 1737.8 ft
Step-by-step explanation:
(a) The given function for the height of the object is s = -16·t² + v₀·t + s₀
The initial height of the object s₀ = 900 feet
The initial vertical velocity of the object v₀ = 0 m/s
The time it takes the package to strike the ground is found as follows;
0 = -16·t² + 0×t + 900
900 = 16·t²
t² = 900/16 = 62.25
t = √62.25 = 7.5 seconds
(b) Given that the horizontal velocity of the package is given as 158 miles/hour, we have
158 miles/hour = 231.7126 ft/s
The horizontal distance the package covers in the 7.5 second of vertical flight = 231.7126 ft/s × 7.5 s = 1737.8445 feet = 1737.8 ft to one decimal place
The horizontal distance the package travel during its descent = 1737.8 ft.