Answer:
46.6 ft/sec (to the nearest tenth)
Step-by-step explanation:
There's a common identity useful here: 60 mph = 88 ft/sec.
Mult. 31.8 mph by the conversion factor (88 ft/sec) / (60 mph), obtaining:
46.64 ft/sec.
Answer:
Height of the cliff = 13.66 m
Step-by-step explanation:
Let the height of the cliff is 'x' m and distance between the base of the cliff and the boat is 'y' m.
From right triangle AOC,
tan 30° = 

y =
------(1)
From right angle triangle BOC,
tan 45° = 

x = y - 10
y = x + 10 -------(2)
From equations (1) and (2),



x = 13.66 m
Therefore, height of the cliff is 13.66 m.
I can't really see those. Sorry I can't help you
Answer:
2.25 cm³
Step-by-step explanation:
The volume of a pyramid can be found using the formula:

Base area
= area of square
= side ×side
= 1.5²
= 2.25 cm²
Volume of paperweight
= ⅓(2.25)(3)
= 2.25 cm³
Answer:
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Step-by-step explanation: