Someone please help help
1 answer:
Hi!
To solve this, I would use tan, as tan is opposite / adjacent. In this case, the opposite is 20, and the adjacent is 21. You would use the fraction 20/21, to find the measure of angle I.
As the function tan() is finding the ratio of the sides from a degree, but we already know the ratio of the sides and are looking to find the degree, then instead we'll be using the function .
If you put the fraction 20/21 into that function, you get . And if you solve that with a calculator, you get your answer of roughly 43.6. So your answer is the third option, or 43.6 degrees.
Hope this helped!
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Answer:
Step-by-step explanation:
Let E be the set of all even positive integers in the universe Z of integers,
i.e
E = {2,4,6,8,10 ....∞}
be the characteristic function of E.
∴
For XE(2)
since x is an element of E (i.e the set of all even numbers)
For XE(-2)
since - 2 is less than 0 , and -2 is not an element of E
For { x ∈ Z: XE(x) = 1}
This can be read as:
x which is and element of Z such that X is also an element of x which is equal to 1.
∴
E = {2,4,6,8,10 ....∞}