The tangent of an angle is the ratio of the opposite side to the adjacent side.
... tan(45°) = (height above eye level)/(20 m)
... height above eye level = (20 m)·tan(45°) = (20 m)·1 = 20 m
_____
Eye level is 1.7 m above ground, so the height of the flagpole above ground is
... height of pole = height above eye level + height of eye level
... height of pole = 20 m + 1.7 m = 21.7 m
V=(1/3)πr²h
∴ dV/dt
=(π/3)[r²(dh/dt)+h2r(dr/dt)]
=(π/3)[(30)²(-2)+40(2)(30)(2)]
=(π/3)[-1800+4800]
=1600π in³/sec
Answer: 1600π in³/sec
AnswerStatistics calculator
34,56,13,98,75
Enter values separated by commas to calculate population and sample deviations.
min13
mean55.2
median56
max98
Population
Sample
In statistics, a population is a set of similar items or events which pertains to a question or experiment.
x1=34x2=56x3=13x4=98x5=75
Concept Value Symbol or formula Calculation
Count 5 -
Sum 276 34 + 56 + 13 + 98 + 75
Min 13 - -
Max 98 - -
Range 85 98 - 13
Median 56 - -
Mode N/A - -
Mean 55.2 276
5
Variance 890.96 4,454.8
5
Standard deviation 29.849 √890.96
Step-by-step explanation:
Answer:
1. the red balloon
2.they both ascended at the same rate
Step-by-step explanation:
