This visual representation shows the sets of real numbers. Which statement is true regarding the number sets? 1. Some irrational numbers are also rational numbers. 2. All irrational numbers are also rational numbers. 3. All rational numbers are also irrational numbers. 4. Rational numbers and irrational numbers have no numbers in common.

This visual representation shows the sets of real numbers. Which statement is true regarding the nu

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montrellgoodman5890

08.01.2021

Mathematics

Step-by-step explanation:

$\left\{\begin{array}{ccc}y&=&-2x\\y&=&-9x+21\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&-2x\\-2x&=&-9x+21\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&-2x\\9x-2x&=&21\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}7x&=&21\\y&=&-2x\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}x&=&3\\y&=&-6\\\end{array} \right.\\\\\\$

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