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DaniilM [7]
2 years ago
9

Determine whether the number is rational or irrational: -21*

Mathematics
1 answer:
timofeeve [1]2 years ago
6 0

Answer:

Rational

Step-by-step explanation:

Pi is a rational number

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What is the midpoint of QR. Q(2,4) and R(-3,9)
Eduardwww [97]

Answer:

The answer is

( -  \frac{1}{2}  \: , \:  \frac{13}{2})  \\

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

M = (  \frac{x1 + x2}{2} , \:  \frac{y1 + y2}{2} )\\

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From the question the points are

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The midpoint is

M = ( \frac{2 - 3}{2}  \:  , \:  \frac{9 + 4}{2} ) \\

We have the final answer as

( -  \frac{1}{2}  \: , \:  \frac{13}{2})  \\

Hope this helps you

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X/-5 +1 (is less than or equal to) 7
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