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LekaFEV [45]
3 years ago
6

Suppose point D is in the interior of ∠ABC, m∠ABC=120 degrees, m∠ABD=3x+40, and m∠DBC=2x−10. What is m∠DBC

Mathematics
2 answers:
neonofarm [45]3 years ago
7 0

∠ABC is 130 degrees.

See the following image for steps:

WARRIOR [948]3 years ago
5 0

Answer: 30

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hi Juliadayx! How are you?

Well, maybe you already heard about the domain and the range of a function.  

The domain is the set of values that the independent variable can take (usually referred to as the letter "x"), while the range is the set of values that the dependent variable takes, which is called f(x) or function of x.

In this case, the exercise asks you to evaluate for which values of “x” (right column of the table), the function “f(x)” takes positive values (left column of the table), the positive values also include zero. And in this case you can see that the function f(x) is only positive for the values of "x": -2, -1, 0 and 1. Therefore, the answer is the entire interval (-2, 1).

I hope I've been helpful!

Regards!

3 0
3 years ago
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Step-by-step explanation:

To solve this problem, we will follow the steps bellow:

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Step-by-step explanation:

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