2 years ago

Given A B is 30°, find m angle A B C.

Mathematics

1 answer:

Liula [17]2 years ago

7 0

Answer: if this is a triangle, then all triangles add up to 180 degrees. I dont know if this helps... sorry

Step-by-step explanation:

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In the diagram, CD = 15 and CF = 39. If line DF is tangent to point C, then DF = ?

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4 years ago

Which of these functions has an inverse function? Select all that apply.

ElenaW [278]

ANSWER

y=x

y=x³

EXPLANATION

A function, f(x) has an inverse if and only if

$f(a) = f(b) \Rightarrow \: a = b$

Thus, the function is one to one.

For y=x or

$f(x) = x$

$f(a) = f(b) \Rightarrow \: a = b$

Hence this function has an inverse.

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This function has no inverse on the entire real numbers.

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This function also has an inverse.

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This function has no inverse over the entire real numbers.

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