90 it is a right tranigle
Fundamental Trigonometric Identities are listed below:
Θ +
Θ = 1
Θ -
Θ = 1
Θ -
Θ = 1- sinΘ = 1 / cosec Θ
- cos Θ = 1 / sec Θ
- tan Θ = 1 / cot Θ
- tan Θ = sinΘ / cosΘ
- cotΘ = cosΘ / sinΘ
<h3>Meaning of Fundamental Trigonometric Identities</h3>
Fundamental Trigonometric Identities can be defined as the basic identities or variables that can be used to proffer solutions to any problem relating to angles and trigonometry.
In conclusion, A few Fundamental Trigonometric Identities are listed above.
Learn more about Fundamental Trigonometric Identities: brainly.com/question/7331447
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Answer:
Following are the answer to this question:
Step-by-step explanation:
Given:
n = 30 is the sample size.
The mean
= 7.3 days.
The standard deviation = 6.2 days.
df = n-1

The importance level is
= 0.10
The table value is calculated with a function excel 2010:

The method for calculating the trust interval of 90 percent for the true population means is:
Formula:


It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.
Answer: 81
Step-by-step explanation: 9 times 9 = 81
Answer: 21
Step-by-step explanation:
84 divided by 4 = 21 since grabielle is 21, and then mikhail is gonna be 3 times more so it’s gonna be 63