3 years ago

Simplify 3 square root 7 minus 5 square root 7

Mathematics

1 answer:

Ymorist [56]3 years ago

4 0

Answer:

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Vertical angles are supplementary, true or false?

beks73 [17]

Answer:

False

Step-by-step explanation:

Vertical angles are a pair of opposite angles created by intersecting lines. The Vertical Angles Theorem states that if two angles are vertical, then they are congruent.

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3 years ago

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Simultaneous equation <br> Find x and y <br> 2x+y=5<br> X+3y=5

snow_tiger [21]

$x+3y=5 \ =>\boxed{x=5-3y} \\\\ 2x+y=5 \\\\ 2(5-3y)+y=5 \\\\10-6y+y=5 \\\\ -5y=5-10 \\\\ -5y=-5 \ |:(-5) \\\\ \boxed{y=1} \\\\ x=5-3*1 \\\\ x=5-3 \\\\ \boxed{x=2}$