2 years ago

What is the answer???

1 answer:

4 0

$65\º + (3x-10\º) +(2x) = 180\º \\ \\ 65\º+ 3x-10\º +2x = 180\º \\ \\ 3x +2x = 180\º +10\º -65\º\\ \\ 5x = 125\º \\ \\ \\ x= \dfrac{125\º}{5}\qquad \to \boxed{x= 25\º}$

$B= (3x-10\º) \\ \\ B= 3(25\º) -10\º \to \boxed{B= 65\º} \\ \\ C= 2x \º\\ \\ C= 2*(25\º) \to \boxed{C= 50\º}$

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2 years ago

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dezoksy [38]

Answer: Choice C. $x \ge -3$

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Explanation:

The domain is the set of all allowed x inputs.

Here we see that x = -3 is the smallest x value possible as it is from the left-most point. The graph goes on forever to the right, so there is no largest x value. Effectively infinity is the largest x value even though infinity is not a number.

We can say the domain is $-3 \le x < \infty$ which can be simplified to $-3 \le x$ or $x \ge -3$