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alexdok [17]
4 years ago
7

Which undefined terms are needed to define perpendicular lines?

Mathematics
2 answers:
beks73 [17]4 years ago
8 0
<span>D. Coplanar, line Parallel lines are coplanar lines that do not intersect.</span>
SVETLANKA909090 [29]4 years ago
7 0
C is the answer lil flock
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54 is 60% of what number?
Genrish500 [490]
Let, the number = x

Then, x * 60% = 54

x * 0.60 = 54

x = 54 / 0.60

x = 90

In short, Your Answer would be: 90

Hope this helps!
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4 years ago
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Kaylis [27]
<h3><u>Part A</u></h3>

\sf \rightarrow  y^2 - 3y - 4y +12

factor the common term 'y' and '-4'

\sf \rightarrow  y(y - 3) - 4(y - 3)

collect into groups

\sf \rightarrow  (y- 4)(y - 3)

<h3><u>Part B</u></h3>

\sf \rightarrow  9x^2 - 12x + 4

middle term split

\sf \rightarrow  9x^2 - 6x - 6x+ 4

factor the common term '3x' and '-2'

\sf \rightarrow  3x(3x - 2) -2( 3x-2)

collect into groups

\sf \rightarrow  (3x -2)( 3x-2)

simplify the following

\sf \rightarrow  (3x -2)^2

5 0
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