53) Vertical angles are congruent, so 
54)
and
are supplementary, so 
55) Because vertical angles are congruent,
. Now, because DR bisects
, this means 
56) This is a geometric sequence where the next term is obtained by multiplying the previous term by -2, so the next two numbers are 16, -32
The factors of given expression are: -5 and 3/4
Step-by-step explanation:
Given equation is:

Making pairs for the mid-term 17x by factoring the product of co-efficient of 4x^2 and 15



Now


Hence,
The factors of given expression are: -5 and 3/4
Keywords: Quadratic equation, factors
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Answer:
r(t) and s(t) are parallel.
Step-by-step explanation:
Given that :
the lines represented by the vector equations are:
r(t)=⟨1−t,3+2t,−3t⟩
s(t)=⟨2t,−3−4t,3+6t⟩
The objective is to determine if the following lines represented by the vector equations below intersect, are parallel, are skew, or are identical.
NOTE:
Two lines will be parallel if 
here;

Thus;



∴

Hence, we can conclude that r(t) and s(t) are parallel.