Three consecutive even numbers are such that the sum of four times the smallest and twice the largest exceeds three times the se
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<h2>The stone fall in air for 7 seconds and fall in water for 5 seconds.</h2>
Step-by-step explanation:
Total distance to sea bed = 127 m
Let the distance traveled in air be s.
Distance traveled in water = 127 - s
Average velocity in air = 16 m/s
Average velocity in water = 3 m/s
Distance traveled in air = Average velocity in air x Time in air
s = 16 x t₁
Distance traveled in water = Average velocity in water x Time in water
127-s = 3 x t₂
We have total time is 12 seconds
That is
t₁ + t₂ = 12
We have
s = 16 x t₁
112 = 16 x t₁
t₁ = 7 s
t₁ + t₂ = 12
7 + t₂ = 12
t₂ = 5 s
The stone fall in air for 7 seconds and fall in water for 5 seconds.
Answer:
Explicit formula for
1)
2)
Step-by-step explanation:
W have to find the first few terms of the given sequence and then find an explicit equation
Explicit formula = f(n) + d(n-1) , where,
f(n) is first term,
d is common difference,
n-1 is one term less than the term number.
1)
Given :
Thus, we obtained an explicit formula,
2)
Given :
Thus, we obtained an explicit formula,
Thus, we obtained an explicit formula,