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ehidna [41]
4 years ago
8

What is the value of y?

Mathematics
2 answers:
tamaranim1 [39]4 years ago
8 0

Answer:

B. 60

Step-by-step explanation:

There are 180 degrees in a triangle. 60+60=120, so you do 180-120 the answer you receive is 60.

AlexFokin [52]4 years ago
4 0

Answer:

60°

Step-by-step explanation:

All the sides are of equal length, 12,12,12 , 60,60, ?, so it is 60

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Explanation:

1) the composed function (g ° f) )x= is the application of the function g (x) to the function f(x), this is you first apply f(x) and then apply g(x): g [f(x) ]

2) So the domain is the set of values for which f(x) is defined and then those values of f(x) for which g(x) is defined.

3) The values of x for which f(x) is defined is all the real values except x =  7.

4) The values of f(x) for which g(x) is defined are all the values of f(x) except f(x) = - 3.

5) So, the domain of the composed function is all the real values except x =  7 and the x for which f(x) = - 3

6) Important remark: notice that there is an error in the statements listed, because saying that the domain is all the real values except x ≠ 7 and f(x) ≠ - 3 means that tha domain is only x = 7 and f(x) = - 3, when what they meant was that the composed function is not defined for x = 7 and f(x) = - 3 (this is a bad use of double negation which is a good expample of why double negation must be avoided).
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Step-by-step explanation:

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