Answer:
Step-by-step explanation:
the angle of depression of a boat from a cliff is 54 ° and if it approaches 150m to the coast it is 72 ° what is the height of the cliff?
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Using trigonometry on triangle ABC
tan x = opposite / adjacent
tan72 = h / 150
h = 150 × tan 72
h = 461.65 m
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Usando trigonometría en el triángulo ABC
tan x = opuesto / adyacente
tan72 = h / 150
h = 150 × tan 72
h = 461.65 m
Answer: 100
Step-by-step explanation:
Given : The total number of seats planned in new restaurant =134
The percentage of customers demand a smoke-free area = 62%
It can also be written as
The mean of this binomial distribution will be :-
Standard deviation:-
Now, the number of seats should be in the non-smoking area in order to be very sure of having enough seating there :-
Answer:
a = 3
Step-by-step explanation:
1) Simplify 5a - 9 + a to 6a - 9.
2) Add 9 to both sides.
3) Simplify 9 + 9 to 18.
4) Divide both sides by 6.
5) Simplify 18/6 to 3.
Therefor, the answer is, a = 3.
Answer:
The year is
Step-by-step explanation:
From the question we are told that
The percentage of the number of babies born out of wedlock in 1990 is k = 28%
The percentage by which the number increase per year is i = 0.6%
The percentage of of the number of babies born out of wedlock considered is a = 31%
Generally the difference in between the percentage in 1990 and the percentage considered is
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Generally the number of year require for the percentage to be equal to 31% is mathematically represented as
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Generally the year which the considered percentage will be attained is
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