Answer:
second equation :
( 20x² — 2xy — 42y² )
Step-by-step explanation:
expand the two brackets.
Answer:
2.56
Step-by-step explanation:
(3+2+2+5+1+3+2+0+5)/9=2.55555555556...
Answer:
Rectangle
Step-by-step explanation:
Note the definition of a rectangle. All angles must be 90°, and opposite sides are parallel and congruent.
It says that Andre "drew a quadrilateral with <em>four right angles and two pairs of congruent sides</em>.", making rectangle a candidate as an answer.
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<span>y=-3x has slope = -3
</span><span>
perpendicular lines, slope is opposite and reciprocal
so slope of </span>perpendicular = 1/3
answer
1/3
C I think sorry if I’m wrong
