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DochEvi [55]
4 years ago
5

Below is a two-column proof incorrectly proving that the three angles of ΔPQR add up to 180°:

Mathematics
1 answer:
Wittaler [7]4 years ago
9 0

THAT THE TRIANGLE ACCORDING TO QUESTION AND I THINK SO OPTION A IS RIGHT 95%

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A ball is dropped from the top of a building that is 1,000 feet high. Its height, in feet, as a function of the time, x, in seco
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Answer:

Positive real numbers

Step-by-step explanation:

The domain is all the possible values of x.  Here, x represents the time that the ball falls.

Natural numbers are integers greater than 0 (1, 2, 3, etc.).  However, the time doesn't have to be an integer (for example, x=1.5).

Positive integers are the same as natural numbers.

Positive rational numbers are numbers greater than 0 that can be written as a ratio of integers (1/1, 3/2, 2/1, etc.).  However, the time can also be irrational (for example, x=√2).

Positive real numbers are numbers greater than 0 and not imaginary (don't contain √-1).  This is the correct domain of the function.

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