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igomit [66]
3 years ago
8

Part A

Mathematics
1 answer:
Westkost [7]3 years ago
7 0

Definition: Vertical angles are the angles that are vertically opposite to each other when two lines intersect.

Vertical Angles Theorem: Vertical angles are congruent to each other.

Triangle Angle-Sum Theorem: The sum of the measures of the interior angles of a triangle is 180°.

The diagram shows triangle with to given angles. By the Triangle Angle-Sum Theorem you can find the measure of third angle. Angles x and y are vertical, then they are congruent.

Answer Part A: option A

By the Triangle Angle-Sum Theorem, x°+30°+70°=180°,

x°=80°

and

x°=y°=80°.

Answer part B: option B

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For the exponential function:The domain of exponential functions<span> is all real numbers. And the range are all  real numbers greater than zero. 
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Please me help with this question!ASAP!
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