4)
the arrow touches the ground when the heigth is 0
so we need to replace h=0 and solve for t
<em>the arrow tuches the ground at 3.4 seconds</em>
5)
replacing
<em>solve for m</em>
<em>the mass is 13.50Kg</em>
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Answer:
Identity property
Step-by-step explanation: because the product of any number and one is that number
Answer:
-1+2x= 17
2x=18
x=9
Step-by-step explanation:
ans. 9
Answer:
2.8 miles higher the plane go without leaving the troposphere?
Step-by-step explanation:
Troposphere height on different locations= 6-12 miles
plane altitude at present flight = 5.8 miles.
Troposphere deepness from the present flight= 8.6 miles
So from present altitude till troposphere= 8.6-5.8= 2.8 miles
The mean is 36 and the standard deviation is 5.02.
The mean is given by
μ = np = 120*0.3 = 36.
The standard deviation is given by
σ = √(n*p*(1-p)) = √(120*0.3*0.7) = √25.2 = 5.02.
